Add m-esr52 at 52.6.0

59 files changed, 15361 insertions, 0 deletions

diff --git a/netwerk/srtp/src/crypto/ae_xfm/xfm.c b/netwerk/srtp/src/crypto/ae_xfm/xfm.c
new file mode 100644
index 000000000..c3c08d9c7
--- /dev/null
+++ b/netwerk/srtp/src/crypto/ae_xfm/xfm.c
@@ -0,0 +1,605 @@
+/*
+ * xfm.c
+ *
+ * Crypto transform implementation
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "cryptoalg.h"
+#include "aes_cbc.h"
+#include "hmac.h"
+#include "crypto_kernel.h"   /* for crypto_get_random() */
+
+#define KEY_LEN     16
+#define ENC_KEY_LEN 16
+#define MAC_KEY_LEN 16
+#define IV_LEN      16
+#define TAG_LEN     12
+#define MAX_EXPAND  27
+
+err_status_t
+aes_128_cbc_hmac_sha1_96_func(void *key,            
+			      void *clear,          
+			      unsigned clear_len,       
+			      void *iv,             
+			      void *opaque,         
+			      unsigned *opaque_len, 
+			      void *auth_tag) {
+  aes_cbc_ctx_t aes_ctx;
+  hmac_ctx_t hmac_ctx;
+  unsigned char enc_key[ENC_KEY_LEN];
+  unsigned char mac_key[MAC_KEY_LEN];
+  err_status_t status;
+
+  /* check if we're doing authentication only */
+  if ((iv == NULL) && (opaque == NULL) && (opaque_len == NULL)) {
+      
+      /* perform authentication only */
+
+  } else if ((iv == NULL) || (opaque == NULL) || (opaque_len == NULL)) {
+    
+    /*
+     * bad parameter - we expect either all three pointers to be NULL,
+     * or none of those pointers to be NULL 
+     */
+    return err_status_fail;
+
+  } else {
+
+    /* derive encryption and authentication keys from the input key */
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "ENC", 3, ENC_KEY_LEN, enc_key);
+    if (status) return status;
+
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "MAC", 3, MAC_KEY_LEN, mac_key);
+    if (status) return status;
+
+
+    /* perform encryption and authentication */
+
+    /* set aes key */
+    status = aes_cbc_context_init(&aes_ctx, key, ENC_KEY_LEN, direction_encrypt);
+    if (status) return status;
+
+    /* set iv */
+    status = crypto_get_random(iv, IV_LEN);  
+    if (status) return status; 
+    status = aes_cbc_set_iv(&aes_ctx, iv);
+    
+    /* encrypt the opaque data  */
+    status = aes_cbc_nist_encrypt(&aes_ctx, opaque, opaque_len);
+    if (status) return status;
+
+    /* authenticate clear and opaque data */
+    status = hmac_init(&hmac_ctx, mac_key, MAC_KEY_LEN);
+    if (status) return status;
+
+    status = hmac_start(&hmac_ctx);
+    if (status) return status;
+
+    status = hmac_update(&hmac_ctx, clear, clear_len);
+    if (status) return status;
+
+    status = hmac_compute(&hmac_ctx, opaque, *opaque_len, TAG_LEN, auth_tag);
+    if (status) return status;
+
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+aes_128_cbc_hmac_sha1_96_inv(void *key,            
+			     void *clear,          
+			     unsigned clear_len,       
+			     void *iv,             
+			     void *opaque,         
+			     unsigned *opaque_len, 
+			     void *auth_tag) {
+  aes_cbc_ctx_t aes_ctx;
+  hmac_ctx_t hmac_ctx;
+  unsigned char enc_key[ENC_KEY_LEN];
+  unsigned char mac_key[MAC_KEY_LEN];
+  unsigned char tmp_tag[TAG_LEN];
+  unsigned char *tag = auth_tag;
+  err_status_t status;
+  int i;
+  
+  /* check if we're doing authentication only */
+  if ((iv == NULL) && (opaque == NULL) && (opaque_len == NULL)) {
+      
+      /* perform authentication only */
+
+  } else if ((iv == NULL) || (opaque == NULL) || (opaque_len == NULL)) {
+    
+    /*
+     * bad parameter - we expect either all three pointers to be NULL,
+     * or none of those pointers to be NULL 
+     */
+    return err_status_fail;
+
+  } else {
+
+    /* derive encryption and authentication keys from the input key */
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "ENC", 3, ENC_KEY_LEN, enc_key);
+    if (status) return status;
+
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "MAC", 3, MAC_KEY_LEN, mac_key);
+    if (status) return status;
+
+    /* perform encryption and authentication */
+
+    /* set aes key */
+    status = aes_cbc_context_init(&aes_ctx, key, ENC_KEY_LEN, direction_decrypt);
+    if (status) return status;
+
+    /* set iv */
+    status = rand_source_get_octet_string(iv, IV_LEN);  
+    if (status) return status; 
+    status = aes_cbc_set_iv(&aes_ctx, iv);
+    
+    /* encrypt the opaque data  */
+    status = aes_cbc_nist_decrypt(&aes_ctx, opaque, opaque_len);
+    if (status) return status;
+
+    /* authenticate clear and opaque data */
+    status = hmac_init(&hmac_ctx, mac_key, MAC_KEY_LEN);
+    if (status) return status;
+
+    status = hmac_start(&hmac_ctx);
+    if (status) return status;
+
+    status = hmac_update(&hmac_ctx, clear, clear_len);
+    if (status) return status;
+
+    status = hmac_compute(&hmac_ctx, opaque, *opaque_len, TAG_LEN, tmp_tag);
+    if (status) return status;
+
+    /* compare the computed tag with the one provided as input */
+    for (i=0; i < TAG_LEN; i++)
+      if (tmp_tag[i] != tag[i]) 
+	return err_status_auth_fail; 
+
+  }
+
+  return err_status_ok;
+}
+
+
+#define ENC 1
+
+#define DEBUG 0
+
+err_status_t
+aes_128_cbc_hmac_sha1_96_enc(void *key,            
+			     const void *clear,          
+			     unsigned clear_len,       
+			     void *iv,             
+			     void *opaque,         
+			     unsigned *opaque_len) {
+  aes_cbc_ctx_t aes_ctx;
+  hmac_ctx_t hmac_ctx;
+  unsigned char enc_key[ENC_KEY_LEN];
+  unsigned char mac_key[MAC_KEY_LEN];
+  unsigned char *auth_tag;
+  err_status_t status;
+
+  /* check if we're doing authentication only */
+  if ((iv == NULL) && (opaque == NULL) && (opaque_len == NULL)) {
+      
+      /* perform authentication only */
+
+  } else if ((iv == NULL) || (opaque == NULL) || (opaque_len == NULL)) {
+    
+    /*
+     * bad parameter - we expect either all three pointers to be NULL,
+     * or none of those pointers to be NULL 
+     */
+    return err_status_fail;
+
+  } else {
+
+#if DEBUG
+    printf("ENC using key %s\n", octet_string_hex_string(key, KEY_LEN));
+#endif
+
+    /* derive encryption and authentication keys from the input key */
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "ENC", 3, ENC_KEY_LEN, enc_key);
+    if (status) return status;
+
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "MAC", 3, MAC_KEY_LEN, mac_key);
+    if (status) return status;
+
+
+    /* perform encryption and authentication */
+
+    /* set aes key */
+    status = aes_cbc_context_init(&aes_ctx, key, ENC_KEY_LEN, direction_encrypt);
+    if (status) return status;
+
+    /* set iv */
+    status = rand_source_get_octet_string(iv, IV_LEN);  
+    if (status) return status; 
+    status = aes_cbc_set_iv(&aes_ctx, iv);
+    if (status) return status;
+
+#if DEBUG
+    printf("plaintext len:  %d\n", *opaque_len);
+    printf("iv:         %s\n", octet_string_hex_string(iv, IV_LEN));
+    printf("plaintext:  %s\n", octet_string_hex_string(opaque, *opaque_len));
+#endif
+
+#if ENC    
+    /* encrypt the opaque data  */
+    status = aes_cbc_nist_encrypt(&aes_ctx, opaque, opaque_len);
+    if (status) return status;
+#endif
+
+#if DEBUG
+    printf("ciphertext len: %d\n", *opaque_len);
+    printf("ciphertext: %s\n", octet_string_hex_string(opaque, *opaque_len));
+#endif
+
+    /*
+     * authenticate clear and opaque data, then write the
+     * authentication tag to the location immediately following the
+     * ciphertext
+     */
+    status = hmac_init(&hmac_ctx, mac_key, MAC_KEY_LEN);
+    if (status) return status;
+
+    status = hmac_start(&hmac_ctx);
+    if (status) return status;
+
+    status = hmac_update(&hmac_ctx, clear, clear_len);
+    if (status) return status;
+#if DEBUG
+    printf("hmac input: %s\n", 
+	   octet_string_hex_string(clear, clear_len));
+#endif
+    auth_tag = (unsigned char *)opaque;
+    auth_tag += *opaque_len;    
+    status = hmac_compute(&hmac_ctx, opaque, *opaque_len, TAG_LEN, auth_tag);
+    if (status) return status;
+#if DEBUG
+    printf("hmac input: %s\n", 
+	   octet_string_hex_string(opaque, *opaque_len));
+#endif
+    /* bump up the opaque_len to reflect the authentication tag */
+    *opaque_len += TAG_LEN;
+
+#if DEBUG
+    printf("prot data len:  %d\n", *opaque_len);
+    printf("prot data: %s\n", octet_string_hex_string(opaque, *opaque_len));
+#endif
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+aes_128_cbc_hmac_sha1_96_dec(void *key,            
+			     const void *clear,          
+			     unsigned clear_len,       
+			     void *iv,             
+			     void *opaque,         
+			     unsigned *opaque_len) {
+  aes_cbc_ctx_t aes_ctx;
+  hmac_ctx_t hmac_ctx;
+  unsigned char enc_key[ENC_KEY_LEN];
+  unsigned char mac_key[MAC_KEY_LEN];
+  unsigned char tmp_tag[TAG_LEN];
+  unsigned char *auth_tag;
+  unsigned ciphertext_len;
+  err_status_t status;
+  int i;
+  
+  /* check if we're doing authentication only */
+  if ((iv == NULL) && (opaque == NULL) && (opaque_len == NULL)) {
+      
+      /* perform authentication only */
+
+  } else if ((iv == NULL) || (opaque == NULL) || (opaque_len == NULL)) {
+    
+    /*
+     * bad parameter - we expect either all three pointers to be NULL,
+     * or none of those pointers to be NULL 
+     */
+    return err_status_fail;
+
+  } else {
+#if DEBUG
+    printf("DEC using key %s\n", octet_string_hex_string(key, KEY_LEN));
+#endif
+
+    /* derive encryption and authentication keys from the input key */
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "ENC", 3, ENC_KEY_LEN, enc_key);
+    if (status) return status;
+
+    status = hmac_init(&hmac_ctx, key, KEY_LEN);
+    if (status) return status;
+    status = hmac_compute(&hmac_ctx, "MAC", 3, MAC_KEY_LEN, mac_key);
+    if (status) return status;
+
+#if DEBUG
+    printf("prot data len:  %d\n", *opaque_len);
+    printf("prot data: %s\n", octet_string_hex_string(opaque, *opaque_len));
+#endif
+
+    /* 
+     * set the protected data length to that of the ciphertext, by
+     * subtracting out the length of the authentication tag 
+     */
+    ciphertext_len = *opaque_len - TAG_LEN;
+
+#if DEBUG
+    printf("ciphertext len: %d\n", ciphertext_len);
+#endif    
+    /* verify the authentication tag */
+
+    /* 
+     * compute the authentication tag for the clear and opaque data,
+     * and write it to a temporary location
+     */
+    status = hmac_init(&hmac_ctx, mac_key, MAC_KEY_LEN);
+    if (status) return status;
+
+    status = hmac_start(&hmac_ctx);
+    if (status) return status;
+
+    status = hmac_update(&hmac_ctx, clear, clear_len);
+    if (status) return status;
+
+#if DEBUG
+    printf("hmac input: %s\n", 
+	   octet_string_hex_string(clear, clear_len));
+#endif
+
+    status = hmac_compute(&hmac_ctx, opaque, ciphertext_len, TAG_LEN, tmp_tag);
+    if (status) return status;
+
+#if DEBUG
+    printf("hmac input: %s\n", 
+	   octet_string_hex_string(opaque, ciphertext_len));
+#endif
+
+    /* 
+     * compare the computed tag with the one provided as input (which
+     * immediately follows the ciphertext)
+     */
+    auth_tag = (unsigned char *)opaque;
+    auth_tag += ciphertext_len;  
+#if DEBUG
+    printf("auth_tag: %s\n", octet_string_hex_string(auth_tag, TAG_LEN));
+    printf("tmp_tag:  %s\n", octet_string_hex_string(tmp_tag, TAG_LEN));
+#endif
+    for (i=0; i < TAG_LEN; i++) {
+      if (tmp_tag[i] != auth_tag[i]) 
+	return err_status_auth_fail; 
+    }
+
+    /* bump down the opaque_len to reflect the authentication tag */
+    *opaque_len -= TAG_LEN;
+
+    /* decrypt the confidential data */
+    status = aes_cbc_context_init(&aes_ctx, key, ENC_KEY_LEN, direction_decrypt);
+    if (status) return status;
+    status = aes_cbc_set_iv(&aes_ctx, iv);
+    if (status) return status;
+
+#if DEBUG
+    printf("ciphertext: %s\n", octet_string_hex_string(opaque, *opaque_len));
+    printf("iv:         %s\n", octet_string_hex_string(iv, IV_LEN));
+#endif
+
+#if ENC
+    status = aes_cbc_nist_decrypt(&aes_ctx, opaque, &ciphertext_len);
+    if (status) return status;
+#endif
+
+#if DEBUG
+    printf("plaintext len:  %d\n", ciphertext_len);
+    printf("plaintext:  %s\n", 
+	   octet_string_hex_string(opaque, ciphertext_len));
+#endif
+
+    /* indicate the length of the plaintext  */
+    *opaque_len = ciphertext_len;
+  }
+
+  return err_status_ok;
+}
+
+cryptoalg_ctx_t cryptoalg_ctx = {
+  aes_128_cbc_hmac_sha1_96_enc,
+  aes_128_cbc_hmac_sha1_96_dec,
+  KEY_LEN,
+  IV_LEN,
+  TAG_LEN,
+  MAX_EXPAND,
+};
+
+cryptoalg_t cryptoalg = &cryptoalg_ctx;
+
+#define NULL_TAG_LEN 12
+
+err_status_t
+null_enc(void *key,            
+	 const void *clear,          
+	 unsigned clear_len,       
+	 void *iv,             
+	 void *opaque,         
+	 unsigned *opaque_len) {
+  int i;
+  unsigned char *auth_tag;
+  unsigned char *init_vec = iv;
+
+  /* check if we're doing authentication only */
+  if ((iv == NULL) && (opaque == NULL) && (opaque_len == NULL)) {
+      
+      /* perform authentication only */
+
+  } else if ((iv == NULL) || (opaque == NULL) || (opaque_len == NULL)) {
+    
+    /*
+     * bad parameter - we expect either all three pointers to be NULL,
+     * or none of those pointers to be NULL 
+     */
+    return err_status_fail;
+
+  } else {
+
+#if DEBUG
+    printf("NULL ENC using key %s\n", octet_string_hex_string(key, KEY_LEN));
+    printf("NULL_TAG_LEN:  %d\n", NULL_TAG_LEN);
+    printf("plaintext len:  %d\n", *opaque_len);
+#endif
+    for (i=0; i < IV_LEN; i++)
+      init_vec[i] = i + (i * 16);
+#if DEBUG
+    printf("iv:                %s\n", 
+	   octet_string_hex_string(iv, IV_LEN));
+    printf("plaintext:         %s\n", 
+	   octet_string_hex_string(opaque, *opaque_len));
+#endif
+    auth_tag = opaque;
+    auth_tag += *opaque_len;
+    for (i=0; i < NULL_TAG_LEN; i++)
+      auth_tag[i] = i + (i * 16);
+    *opaque_len += NULL_TAG_LEN;
+#if DEBUG
+    printf("protected data len: %d\n", *opaque_len);
+    printf("protected data:    %s\n", 
+	   octet_string_hex_string(opaque, *opaque_len));
+#endif
+
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+null_dec(void *key,            
+	 const void *clear,          
+	 unsigned clear_len,       
+	 void *iv,             
+	 void *opaque,         
+	 unsigned *opaque_len) {
+  unsigned char *auth_tag;
+  
+  /* check if we're doing authentication only */
+  if ((iv == NULL) && (opaque == NULL) && (opaque_len == NULL)) {
+      
+      /* perform authentication only */
+
+  } else if ((iv == NULL) || (opaque == NULL) || (opaque_len == NULL)) {
+    
+    /*
+     * bad parameter - we expect either all three pointers to be NULL,
+     * or none of those pointers to be NULL 
+     */
+    return err_status_fail;
+
+  } else {
+
+#if DEBUG
+    printf("NULL DEC using key %s\n", octet_string_hex_string(key, KEY_LEN));
+
+    printf("protected data len: %d\n", *opaque_len);
+    printf("protected data:    %s\n", 
+	   octet_string_hex_string(opaque, *opaque_len));
+#endif
+    auth_tag = opaque;
+    auth_tag += (*opaque_len - NULL_TAG_LEN);
+#if DEBUG
+    printf("iv:         %s\n", octet_string_hex_string(iv, IV_LEN));
+#endif
+    *opaque_len -= NULL_TAG_LEN;
+#if DEBUG
+    printf("plaintext len:  %d\n", *opaque_len);
+    printf("plaintext:  %s\n", 
+	   octet_string_hex_string(opaque, *opaque_len));
+#endif
+  }
+
+  return err_status_ok;
+}
+
+cryptoalg_ctx_t null_cryptoalg_ctx = {
+  null_enc,
+  null_dec,
+  KEY_LEN,
+  IV_LEN,
+  NULL_TAG_LEN,
+  MAX_EXPAND,
+};
+
+cryptoalg_t null_cryptoalg = &null_cryptoalg_ctx;
+
+int
+cryptoalg_get_id(cryptoalg_t c) {
+  if (c == cryptoalg)
+    return 1;
+  return 0;
+}
+
+cryptoalg_t 
+cryptoalg_find_by_id(int id) {
+  switch(id) {
+  case 1:
+    return cryptoalg;
+  default:
+    break;
+  }
+  return 0;
+}
diff --git a/netwerk/srtp/src/crypto/cipher/aes.c b/netwerk/srtp/src/crypto/cipher/aes.c
new file mode 100644
index 000000000..438276c24
--- /dev/null
+++ b/netwerk/srtp/src/crypto/cipher/aes.c
@@ -0,0 +1,2079 @@
+/*
+ * aes.c
+ *
+ * An implemnetation of the AES block cipher.
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "aes.h"
+#include "err.h"
+#include "datatypes.h"
+
+typedef uint8_t gf2_8;
+
+#define gf2_8_field_polynomial 0x1B
+
+/*
+ * gf2_8_shift(z) returns the result of the GF(2^8) 'multiply by x'
+ * operation, using the field representation from AES; that is, the
+ * next gf2_8 value in the cyclic representation of that field.  The
+ * value z should be an uint8_t.
+ */
+#define gf2_8_shift(z) (((z) & 128) ?                       \
+       (((z) << 1) ^ gf2_8_field_polynomial) : ((z) << 1))
+
+/* 
+ * we use the tables T0, T1, T2, T3, and T4 to compute AES, and 
+ * the tables U0, U1, U2, and U4 to compute its inverse
+ *
+ * different tables are used on little-endian (Intel, VMS) and
+ * big-endian processors (everything else)
+ *
+ * these tables are computed using the program tables/aes_tables; use
+ * this program to generate different tables for porting or
+ * optimization on a different platform
+ */
+
+#ifndef WORDS_BIGENDIAN
+
+static uint32_t T0[256] = {
+  0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6, 
+  0xdf2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591, 
+  0x50303060, 0x3010102, 0xa96767ce, 0x7d2b2b56, 
+  0x19fefee7, 0x62d7d7b5, 0xe6abab4d, 0x9a7676ec, 
+  0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa, 
+  0x15fafaef, 0xeb5959b2, 0xc947478e, 0xbf0f0fb, 
+  0xecadad41, 0x67d4d4b3, 0xfda2a25f, 0xeaafaf45, 
+  0xbf9c9c23, 0xf7a4a453, 0x967272e4, 0x5bc0c09b, 
+  0xc2b7b775, 0x1cfdfde1, 0xae93933d, 0x6a26264c, 
+  0x5a36366c, 0x413f3f7e, 0x2f7f7f5, 0x4fcccc83, 
+  0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x8f1f1f9, 
+  0x937171e2, 0x73d8d8ab, 0x53313162, 0x3f15152a, 
+  0xc040408, 0x52c7c795, 0x65232346, 0x5ec3c39d, 
+  0x28181830, 0xa1969637, 0xf05050a, 0xb59a9a2f, 
+  0x907070e, 0x36121224, 0x9b80801b, 0x3de2e2df, 
+  0x26ebebcd, 0x6927274e, 0xcdb2b27f, 0x9f7575ea, 
+  0x1b090912, 0x9e83831d, 0x742c2c58, 0x2e1a1a34, 
+  0x2d1b1b36, 0xb26e6edc, 0xee5a5ab4, 0xfba0a05b, 
+  0xf65252a4, 0x4d3b3b76, 0x61d6d6b7, 0xceb3b37d, 
+  0x7b292952, 0x3ee3e3dd, 0x712f2f5e, 0x97848413, 
+  0xf55353a6, 0x68d1d1b9, 0x0, 0x2cededc1, 
+  0x60202040, 0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6, 
+  0xbe6a6ad4, 0x46cbcb8d, 0xd9bebe67, 0x4b393972, 
+  0xde4a4a94, 0xd44c4c98, 0xe85858b0, 0x4acfcf85, 
+  0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed, 
+  0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511, 
+  0xcf45458a, 0x10f9f9e9, 0x6020204, 0x817f7ffe, 
+  0xf05050a0, 0x443c3c78, 0xba9f9f25, 0xe3a8a84b, 
+  0xf35151a2, 0xfea3a35d, 0xc0404080, 0x8a8f8f05, 
+  0xad92923f, 0xbc9d9d21, 0x48383870, 0x4f5f5f1, 
+  0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142, 
+  0x30101020, 0x1affffe5, 0xef3f3fd, 0x6dd2d2bf, 
+  0x4ccdcd81, 0x140c0c18, 0x35131326, 0x2fececc3, 
+  0xe15f5fbe, 0xa2979735, 0xcc444488, 0x3917172e, 
+  0x57c4c493, 0xf2a7a755, 0x827e7efc, 0x473d3d7a, 
+  0xac6464c8, 0xe75d5dba, 0x2b191932, 0x957373e6, 
+  0xa06060c0, 0x98818119, 0xd14f4f9e, 0x7fdcdca3, 
+  0x66222244, 0x7e2a2a54, 0xab90903b, 0x8388880b, 
+  0xca46468c, 0x29eeeec7, 0xd3b8b86b, 0x3c141428, 
+  0x79dedea7, 0xe25e5ebc, 0x1d0b0b16, 0x76dbdbad, 
+  0x3be0e0db, 0x56323264, 0x4e3a3a74, 0x1e0a0a14, 
+  0xdb494992, 0xa06060c, 0x6c242448, 0xe45c5cb8, 
+  0x5dc2c29f, 0x6ed3d3bd, 0xefacac43, 0xa66262c4, 
+  0xa8919139, 0xa4959531, 0x37e4e4d3, 0x8b7979f2, 
+  0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda, 
+  0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949, 
+  0xb46c6cd8, 0xfa5656ac, 0x7f4f4f3, 0x25eaeacf, 
+  0xaf6565ca, 0x8e7a7af4, 0xe9aeae47, 0x18080810, 
+  0xd5baba6f, 0x887878f0, 0x6f25254a, 0x722e2e5c, 
+  0x241c1c38, 0xf1a6a657, 0xc7b4b473, 0x51c6c697, 
+  0x23e8e8cb, 0x7cdddda1, 0x9c7474e8, 0x211f1f3e, 
+  0xdd4b4b96, 0xdcbdbd61, 0x868b8b0d, 0x858a8a0f, 
+  0x907070e0, 0x423e3e7c, 0xc4b5b571, 0xaa6666cc, 
+  0xd8484890, 0x5030306, 0x1f6f6f7, 0x120e0e1c, 
+  0xa36161c2, 0x5f35356a, 0xf95757ae, 0xd0b9b969, 
+  0x91868617, 0x58c1c199, 0x271d1d3a, 0xb99e9e27, 
+  0x38e1e1d9, 0x13f8f8eb, 0xb398982b, 0x33111122, 
+  0xbb6969d2, 0x70d9d9a9, 0x898e8e07, 0xa7949433, 
+  0xb69b9b2d, 0x221e1e3c, 0x92878715, 0x20e9e9c9, 
+  0x49cece87, 0xff5555aa, 0x78282850, 0x7adfdfa5, 
+  0x8f8c8c03, 0xf8a1a159, 0x80898909, 0x170d0d1a, 
+  0xdabfbf65, 0x31e6e6d7, 0xc6424284, 0xb86868d0, 
+  0xc3414182, 0xb0999929, 0x772d2d5a, 0x110f0f1e, 
+  0xcbb0b07b, 0xfc5454a8, 0xd6bbbb6d, 0x3a16162c, 
+};
+
+static uint32_t T1[256] = {
+  0x6363c6a5, 0x7c7cf884, 0x7777ee99, 0x7b7bf68d, 
+  0xf2f2ff0d, 0x6b6bd6bd, 0x6f6fdeb1, 0xc5c59154, 
+  0x30306050, 0x1010203, 0x6767cea9, 0x2b2b567d, 
+  0xfefee719, 0xd7d7b562, 0xabab4de6, 0x7676ec9a, 
+  0xcaca8f45, 0x82821f9d, 0xc9c98940, 0x7d7dfa87, 
+  0xfafaef15, 0x5959b2eb, 0x47478ec9, 0xf0f0fb0b, 
+  0xadad41ec, 0xd4d4b367, 0xa2a25ffd, 0xafaf45ea, 
+  0x9c9c23bf, 0xa4a453f7, 0x7272e496, 0xc0c09b5b, 
+  0xb7b775c2, 0xfdfde11c, 0x93933dae, 0x26264c6a, 
+  0x36366c5a, 0x3f3f7e41, 0xf7f7f502, 0xcccc834f, 
+  0x3434685c, 0xa5a551f4, 0xe5e5d134, 0xf1f1f908, 
+  0x7171e293, 0xd8d8ab73, 0x31316253, 0x15152a3f, 
+  0x404080c, 0xc7c79552, 0x23234665, 0xc3c39d5e, 
+  0x18183028, 0x969637a1, 0x5050a0f, 0x9a9a2fb5, 
+  0x7070e09, 0x12122436, 0x80801b9b, 0xe2e2df3d, 
+  0xebebcd26, 0x27274e69, 0xb2b27fcd, 0x7575ea9f, 
+  0x909121b, 0x83831d9e, 0x2c2c5874, 0x1a1a342e, 
+  0x1b1b362d, 0x6e6edcb2, 0x5a5ab4ee, 0xa0a05bfb, 
+  0x5252a4f6, 0x3b3b764d, 0xd6d6b761, 0xb3b37dce, 
+  0x2929527b, 0xe3e3dd3e, 0x2f2f5e71, 0x84841397, 
+  0x5353a6f5, 0xd1d1b968, 0x00000000, 0xededc12c, 
+  0x20204060, 0xfcfce31f, 0xb1b179c8, 0x5b5bb6ed, 
+  0x6a6ad4be, 0xcbcb8d46, 0xbebe67d9, 0x3939724b, 
+  0x4a4a94de, 0x4c4c98d4, 0x5858b0e8, 0xcfcf854a, 
+  0xd0d0bb6b, 0xefefc52a, 0xaaaa4fe5, 0xfbfbed16, 
+  0x434386c5, 0x4d4d9ad7, 0x33336655, 0x85851194, 
+  0x45458acf, 0xf9f9e910, 0x2020406, 0x7f7ffe81, 
+  0x5050a0f0, 0x3c3c7844, 0x9f9f25ba, 0xa8a84be3, 
+  0x5151a2f3, 0xa3a35dfe, 0x404080c0, 0x8f8f058a, 
+  0x92923fad, 0x9d9d21bc, 0x38387048, 0xf5f5f104, 
+  0xbcbc63df, 0xb6b677c1, 0xdadaaf75, 0x21214263, 
+  0x10102030, 0xffffe51a, 0xf3f3fd0e, 0xd2d2bf6d, 
+  0xcdcd814c, 0xc0c1814, 0x13132635, 0xececc32f, 
+  0x5f5fbee1, 0x979735a2, 0x444488cc, 0x17172e39, 
+  0xc4c49357, 0xa7a755f2, 0x7e7efc82, 0x3d3d7a47, 
+  0x6464c8ac, 0x5d5dbae7, 0x1919322b, 0x7373e695, 
+  0x6060c0a0, 0x81811998, 0x4f4f9ed1, 0xdcdca37f, 
+  0x22224466, 0x2a2a547e, 0x90903bab, 0x88880b83, 
+  0x46468cca, 0xeeeec729, 0xb8b86bd3, 0x1414283c, 
+  0xdedea779, 0x5e5ebce2, 0xb0b161d, 0xdbdbad76, 
+  0xe0e0db3b, 0x32326456, 0x3a3a744e, 0xa0a141e, 
+  0x494992db, 0x6060c0a, 0x2424486c, 0x5c5cb8e4, 
+  0xc2c29f5d, 0xd3d3bd6e, 0xacac43ef, 0x6262c4a6, 
+  0x919139a8, 0x959531a4, 0xe4e4d337, 0x7979f28b, 
+  0xe7e7d532, 0xc8c88b43, 0x37376e59, 0x6d6ddab7, 
+  0x8d8d018c, 0xd5d5b164, 0x4e4e9cd2, 0xa9a949e0, 
+  0x6c6cd8b4, 0x5656acfa, 0xf4f4f307, 0xeaeacf25, 
+  0x6565caaf, 0x7a7af48e, 0xaeae47e9, 0x8081018, 
+  0xbaba6fd5, 0x7878f088, 0x25254a6f, 0x2e2e5c72, 
+  0x1c1c3824, 0xa6a657f1, 0xb4b473c7, 0xc6c69751, 
+  0xe8e8cb23, 0xdddda17c, 0x7474e89c, 0x1f1f3e21, 
+  0x4b4b96dd, 0xbdbd61dc, 0x8b8b0d86, 0x8a8a0f85, 
+  0x7070e090, 0x3e3e7c42, 0xb5b571c4, 0x6666ccaa, 
+  0x484890d8, 0x3030605, 0xf6f6f701, 0xe0e1c12, 
+  0x6161c2a3, 0x35356a5f, 0x5757aef9, 0xb9b969d0, 
+  0x86861791, 0xc1c19958, 0x1d1d3a27, 0x9e9e27b9, 
+  0xe1e1d938, 0xf8f8eb13, 0x98982bb3, 0x11112233, 
+  0x6969d2bb, 0xd9d9a970, 0x8e8e0789, 0x949433a7, 
+  0x9b9b2db6, 0x1e1e3c22, 0x87871592, 0xe9e9c920, 
+  0xcece8749, 0x5555aaff, 0x28285078, 0xdfdfa57a, 
+  0x8c8c038f, 0xa1a159f8, 0x89890980, 0xd0d1a17, 
+  0xbfbf65da, 0xe6e6d731, 0x424284c6, 0x6868d0b8, 
+  0x414182c3, 0x999929b0, 0x2d2d5a77, 0xf0f1e11, 
+  0xb0b07bcb, 0x5454a8fc, 0xbbbb6dd6, 0x16162c3a, 
+};
+
+static uint32_t T2[256] = {
+  0x63c6a563, 0x7cf8847c, 0x77ee9977, 0x7bf68d7b, 
+  0xf2ff0df2, 0x6bd6bd6b, 0x6fdeb16f, 0xc59154c5, 
+  0x30605030, 0x1020301, 0x67cea967, 0x2b567d2b, 
+  0xfee719fe, 0xd7b562d7, 0xab4de6ab, 0x76ec9a76, 
+  0xca8f45ca, 0x821f9d82, 0xc98940c9, 0x7dfa877d, 
+  0xfaef15fa, 0x59b2eb59, 0x478ec947, 0xf0fb0bf0, 
+  0xad41ecad, 0xd4b367d4, 0xa25ffda2, 0xaf45eaaf, 
+  0x9c23bf9c, 0xa453f7a4, 0x72e49672, 0xc09b5bc0, 
+  0xb775c2b7, 0xfde11cfd, 0x933dae93, 0x264c6a26, 
+  0x366c5a36, 0x3f7e413f, 0xf7f502f7, 0xcc834fcc, 
+  0x34685c34, 0xa551f4a5, 0xe5d134e5, 0xf1f908f1, 
+  0x71e29371, 0xd8ab73d8, 0x31625331, 0x152a3f15, 
+  0x4080c04, 0xc79552c7, 0x23466523, 0xc39d5ec3, 
+  0x18302818, 0x9637a196, 0x50a0f05, 0x9a2fb59a, 
+  0x70e0907, 0x12243612, 0x801b9b80, 0xe2df3de2, 
+  0xebcd26eb, 0x274e6927, 0xb27fcdb2, 0x75ea9f75, 
+  0x9121b09, 0x831d9e83, 0x2c58742c, 0x1a342e1a, 
+  0x1b362d1b, 0x6edcb26e, 0x5ab4ee5a, 0xa05bfba0, 
+  0x52a4f652, 0x3b764d3b, 0xd6b761d6, 0xb37dceb3, 
+  0x29527b29, 0xe3dd3ee3, 0x2f5e712f, 0x84139784, 
+  0x53a6f553, 0xd1b968d1, 0x0, 0xedc12ced, 
+  0x20406020, 0xfce31ffc, 0xb179c8b1, 0x5bb6ed5b, 
+  0x6ad4be6a, 0xcb8d46cb, 0xbe67d9be, 0x39724b39, 
+  0x4a94de4a, 0x4c98d44c, 0x58b0e858, 0xcf854acf, 
+  0xd0bb6bd0, 0xefc52aef, 0xaa4fe5aa, 0xfbed16fb, 
+  0x4386c543, 0x4d9ad74d, 0x33665533, 0x85119485, 
+  0x458acf45, 0xf9e910f9, 0x2040602, 0x7ffe817f, 
+  0x50a0f050, 0x3c78443c, 0x9f25ba9f, 0xa84be3a8, 
+  0x51a2f351, 0xa35dfea3, 0x4080c040, 0x8f058a8f, 
+  0x923fad92, 0x9d21bc9d, 0x38704838, 0xf5f104f5, 
+  0xbc63dfbc, 0xb677c1b6, 0xdaaf75da, 0x21426321, 
+  0x10203010, 0xffe51aff, 0xf3fd0ef3, 0xd2bf6dd2, 
+  0xcd814ccd, 0xc18140c, 0x13263513, 0xecc32fec, 
+  0x5fbee15f, 0x9735a297, 0x4488cc44, 0x172e3917, 
+  0xc49357c4, 0xa755f2a7, 0x7efc827e, 0x3d7a473d, 
+  0x64c8ac64, 0x5dbae75d, 0x19322b19, 0x73e69573, 
+  0x60c0a060, 0x81199881, 0x4f9ed14f, 0xdca37fdc, 
+  0x22446622, 0x2a547e2a, 0x903bab90, 0x880b8388, 
+  0x468cca46, 0xeec729ee, 0xb86bd3b8, 0x14283c14, 
+  0xdea779de, 0x5ebce25e, 0xb161d0b, 0xdbad76db, 
+  0xe0db3be0, 0x32645632, 0x3a744e3a, 0xa141e0a, 
+  0x4992db49, 0x60c0a06, 0x24486c24, 0x5cb8e45c, 
+  0xc29f5dc2, 0xd3bd6ed3, 0xac43efac, 0x62c4a662, 
+  0x9139a891, 0x9531a495, 0xe4d337e4, 0x79f28b79, 
+  0xe7d532e7, 0xc88b43c8, 0x376e5937, 0x6ddab76d, 
+  0x8d018c8d, 0xd5b164d5, 0x4e9cd24e, 0xa949e0a9, 
+  0x6cd8b46c, 0x56acfa56, 0xf4f307f4, 0xeacf25ea, 
+  0x65caaf65, 0x7af48e7a, 0xae47e9ae, 0x8101808, 
+  0xba6fd5ba, 0x78f08878, 0x254a6f25, 0x2e5c722e, 
+  0x1c38241c, 0xa657f1a6, 0xb473c7b4, 0xc69751c6, 
+  0xe8cb23e8, 0xdda17cdd, 0x74e89c74, 0x1f3e211f, 
+  0x4b96dd4b, 0xbd61dcbd, 0x8b0d868b, 0x8a0f858a, 
+  0x70e09070, 0x3e7c423e, 0xb571c4b5, 0x66ccaa66, 
+  0x4890d848, 0x3060503, 0xf6f701f6, 0xe1c120e, 
+  0x61c2a361, 0x356a5f35, 0x57aef957, 0xb969d0b9, 
+  0x86179186, 0xc19958c1, 0x1d3a271d, 0x9e27b99e, 
+  0xe1d938e1, 0xf8eb13f8, 0x982bb398, 0x11223311, 
+  0x69d2bb69, 0xd9a970d9, 0x8e07898e, 0x9433a794, 
+  0x9b2db69b, 0x1e3c221e, 0x87159287, 0xe9c920e9, 
+  0xce8749ce, 0x55aaff55, 0x28507828, 0xdfa57adf, 
+  0x8c038f8c, 0xa159f8a1, 0x89098089, 0xd1a170d, 
+  0xbf65dabf, 0xe6d731e6, 0x4284c642, 0x68d0b868, 
+  0x4182c341, 0x9929b099, 0x2d5a772d, 0xf1e110f, 
+  0xb07bcbb0, 0x54a8fc54, 0xbb6dd6bb, 0x162c3a16, 
+};
+
+static uint32_t T3[256] = {
+  0xc6a56363, 0xf8847c7c, 0xee997777, 0xf68d7b7b, 
+  0xff0df2f2, 0xd6bd6b6b, 0xdeb16f6f, 0x9154c5c5, 
+  0x60503030, 0x2030101, 0xcea96767, 0x567d2b2b, 
+  0xe719fefe, 0xb562d7d7, 0x4de6abab, 0xec9a7676, 
+  0x8f45caca, 0x1f9d8282, 0x8940c9c9, 0xfa877d7d, 
+  0xef15fafa, 0xb2eb5959, 0x8ec94747, 0xfb0bf0f0, 
+  0x41ecadad, 0xb367d4d4, 0x5ffda2a2, 0x45eaafaf, 
+  0x23bf9c9c, 0x53f7a4a4, 0xe4967272, 0x9b5bc0c0, 
+  0x75c2b7b7, 0xe11cfdfd, 0x3dae9393, 0x4c6a2626, 
+  0x6c5a3636, 0x7e413f3f, 0xf502f7f7, 0x834fcccc, 
+  0x685c3434, 0x51f4a5a5, 0xd134e5e5, 0xf908f1f1, 
+  0xe2937171, 0xab73d8d8, 0x62533131, 0x2a3f1515, 
+  0x80c0404, 0x9552c7c7, 0x46652323, 0x9d5ec3c3, 
+  0x30281818, 0x37a19696, 0xa0f0505, 0x2fb59a9a, 
+  0xe090707, 0x24361212, 0x1b9b8080, 0xdf3de2e2, 
+  0xcd26ebeb, 0x4e692727, 0x7fcdb2b2, 0xea9f7575, 
+  0x121b0909, 0x1d9e8383, 0x58742c2c, 0x342e1a1a, 
+  0x362d1b1b, 0xdcb26e6e, 0xb4ee5a5a, 0x5bfba0a0, 
+  0xa4f65252, 0x764d3b3b, 0xb761d6d6, 0x7dceb3b3, 
+  0x527b2929, 0xdd3ee3e3, 0x5e712f2f, 0x13978484, 
+  0xa6f55353, 0xb968d1d1, 0x0, 0xc12ceded, 
+  0x40602020, 0xe31ffcfc, 0x79c8b1b1, 0xb6ed5b5b, 
+  0xd4be6a6a, 0x8d46cbcb, 0x67d9bebe, 0x724b3939, 
+  0x94de4a4a, 0x98d44c4c, 0xb0e85858, 0x854acfcf, 
+  0xbb6bd0d0, 0xc52aefef, 0x4fe5aaaa, 0xed16fbfb, 
+  0x86c54343, 0x9ad74d4d, 0x66553333, 0x11948585, 
+  0x8acf4545, 0xe910f9f9, 0x4060202, 0xfe817f7f, 
+  0xa0f05050, 0x78443c3c, 0x25ba9f9f, 0x4be3a8a8, 
+  0xa2f35151, 0x5dfea3a3, 0x80c04040, 0x58a8f8f, 
+  0x3fad9292, 0x21bc9d9d, 0x70483838, 0xf104f5f5, 
+  0x63dfbcbc, 0x77c1b6b6, 0xaf75dada, 0x42632121, 
+  0x20301010, 0xe51affff, 0xfd0ef3f3, 0xbf6dd2d2, 
+  0x814ccdcd, 0x18140c0c, 0x26351313, 0xc32fecec, 
+  0xbee15f5f, 0x35a29797, 0x88cc4444, 0x2e391717, 
+  0x9357c4c4, 0x55f2a7a7, 0xfc827e7e, 0x7a473d3d, 
+  0xc8ac6464, 0xbae75d5d, 0x322b1919, 0xe6957373, 
+  0xc0a06060, 0x19988181, 0x9ed14f4f, 0xa37fdcdc, 
+  0x44662222, 0x547e2a2a, 0x3bab9090, 0xb838888, 
+  0x8cca4646, 0xc729eeee, 0x6bd3b8b8, 0x283c1414, 
+  0xa779dede, 0xbce25e5e, 0x161d0b0b, 0xad76dbdb, 
+  0xdb3be0e0, 0x64563232, 0x744e3a3a, 0x141e0a0a, 
+  0x92db4949, 0xc0a0606, 0x486c2424, 0xb8e45c5c, 
+  0x9f5dc2c2, 0xbd6ed3d3, 0x43efacac, 0xc4a66262, 
+  0x39a89191, 0x31a49595, 0xd337e4e4, 0xf28b7979, 
+  0xd532e7e7, 0x8b43c8c8, 0x6e593737, 0xdab76d6d, 
+  0x18c8d8d, 0xb164d5d5, 0x9cd24e4e, 0x49e0a9a9, 
+  0xd8b46c6c, 0xacfa5656, 0xf307f4f4, 0xcf25eaea, 
+  0xcaaf6565, 0xf48e7a7a, 0x47e9aeae, 0x10180808, 
+  0x6fd5baba, 0xf0887878, 0x4a6f2525, 0x5c722e2e, 
+  0x38241c1c, 0x57f1a6a6, 0x73c7b4b4, 0x9751c6c6, 
+  0xcb23e8e8, 0xa17cdddd, 0xe89c7474, 0x3e211f1f, 
+  0x96dd4b4b, 0x61dcbdbd, 0xd868b8b, 0xf858a8a, 
+  0xe0907070, 0x7c423e3e, 0x71c4b5b5, 0xccaa6666, 
+  0x90d84848, 0x6050303, 0xf701f6f6, 0x1c120e0e, 
+  0xc2a36161, 0x6a5f3535, 0xaef95757, 0x69d0b9b9, 
+  0x17918686, 0x9958c1c1, 0x3a271d1d, 0x27b99e9e, 
+  0xd938e1e1, 0xeb13f8f8, 0x2bb39898, 0x22331111, 
+  0xd2bb6969, 0xa970d9d9, 0x7898e8e, 0x33a79494, 
+  0x2db69b9b, 0x3c221e1e, 0x15928787, 0xc920e9e9, 
+  0x8749cece, 0xaaff5555, 0x50782828, 0xa57adfdf, 
+  0x38f8c8c, 0x59f8a1a1, 0x9808989, 0x1a170d0d, 
+  0x65dabfbf, 0xd731e6e6, 0x84c64242, 0xd0b86868, 
+  0x82c34141, 0x29b09999, 0x5a772d2d, 0x1e110f0f, 
+  0x7bcbb0b0, 0xa8fc5454, 0x6dd6bbbb, 0x2c3a1616, 
+};
+
+static uint32_t U0[256] = {
+  0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a, 
+  0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b, 
+  0x55fa3020, 0xf66d76ad, 0x9176cc88, 0x254c02f5, 
+  0xfcd7e54f, 0xd7cb2ac5, 0x80443526, 0x8fa362b5, 
+  0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d, 
+  0x2752fc3, 0x12f04c81, 0xa397468d, 0xc6f9d36b, 
+  0xe75f8f03, 0x959c9215, 0xeb7a6dbf, 0xda595295, 
+  0x2d83bed4, 0xd3217458, 0x2969e049, 0x44c8c98e, 
+  0x6a89c275, 0x78798ef4, 0x6b3e5899, 0xdd71b927, 
+  0xb64fe1be, 0x17ad88f0, 0x66ac20c9, 0xb43ace7d, 
+  0x184adf63, 0x82311ae5, 0x60335197, 0x457f5362, 
+  0xe07764b1, 0x84ae6bbb, 0x1ca081fe, 0x942b08f9, 
+  0x58684870, 0x19fd458f, 0x876cde94, 0xb7f87b52, 
+  0x23d373ab, 0xe2024b72, 0x578f1fe3, 0x2aab5566, 
+  0x728ebb2, 0x3c2b52f, 0x9a7bc586, 0xa50837d3, 
+  0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed, 
+  0x2b1ccf8a, 0x92b479a7, 0xf0f207f3, 0xa1e2694e, 
+  0xcdf4da65, 0xd5be0506, 0x1f6234d1, 0x8afea6c4, 
+  0x9d532e34, 0xa055f3a2, 0x32e18a05, 0x75ebf6a4, 
+  0x39ec830b, 0xaaef6040, 0x69f715e, 0x51106ebd, 
+  0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d, 
+  0xb58d5491, 0x55dc471, 0x6fd40604, 0xff155060, 
+  0x24fb9819, 0x97e9bdd6, 0xcc434089, 0x779ed967, 
+  0xbd42e8b0, 0x888b8907, 0x385b19e7, 0xdbeec879, 
+  0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x0, 
+  0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c, 
+  0xfbff0efd, 0x5638850f, 0x1ed5ae3d, 0x27392d36, 
+  0x64d90f0a, 0x21a65c68, 0xd1545b9b, 0x3a2e3624, 
+  0xb1670a0c, 0xfe75793, 0xd296eeb4, 0x9e919b1b, 
+  0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c, 
+  0xaba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12, 
+  0xb0d090e, 0xadc78bf2, 0xb9a8b62d, 0xc8a91e14, 
+  0x8519f157, 0x4c0775af, 0xbbdd99ee, 0xfd607fa3, 
+  0x9f2601f7, 0xbcf5725c, 0xc53b6644, 0x347efb5b, 
+  0x7629438b, 0xdcc623cb, 0x68fcedb6, 0x63f1e4b8, 
+  0xcadc31d7, 0x10856342, 0x40229713, 0x2011c684, 
+  0x7d244a85, 0xf83dbbd2, 0x1132f9ae, 0x6da129c7, 
+  0x4b2f9e1d, 0xf330b2dc, 0xec52860d, 0xd0e3c177, 
+  0x6c16b32b, 0x99b970a9, 0xfa489411, 0x2264e947, 
+  0xc48cfca8, 0x1a3ff0a0, 0xd82c7d56, 0xef903322, 
+  0xc74e4987, 0xc1d138d9, 0xfea2ca8c, 0x360bd498, 
+  0xcf81f5a6, 0x28de7aa5, 0x268eb7da, 0xa4bfad3f, 
+  0xe49d3a2c, 0xd927850, 0x9bcc5f6a, 0x62467e54, 
+  0xc2138df6, 0xe8b8d890, 0x5ef7392e, 0xf5afc382, 
+  0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf, 
+  0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb, 
+  0x97826cd, 0xf418596e, 0x1b79aec, 0xa89a4f83, 
+  0x656e95e6, 0x7ee6ffaa, 0x8cfbc21, 0xe6e815ef, 
+  0xd99be7ba, 0xce366f4a, 0xd4099fea, 0xd67cb029, 
+  0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235, 
+  0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733, 
+  0x4a9804f1, 0xf7daec41, 0xe50cd7f, 0x2ff69117, 
+  0x8dd64d76, 0x4db0ef43, 0x544daacc, 0xdf0496e4, 
+  0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1, 0x7f516546, 
+  0x4ea5e9d, 0x5d358c01, 0x737487fa, 0x2e410bfb, 
+  0x5a1d67b3, 0x52d2db92, 0x335610e9, 0x1347d66d, 
+  0x8c61d79a, 0x7a0ca137, 0x8e14f859, 0x893c13eb, 
+  0xee27a9ce, 0x35c961b7, 0xede51ce1, 0x3cb1477a, 
+  0x59dfd29c, 0x3f73f255, 0x79ce1418, 0xbf37c773, 
+  0xeacdf753, 0x5baafd5f, 0x146f3ddf, 0x86db4478, 
+  0x81f3afca, 0x3ec468b9, 0x2c342438, 0x5f40a3c2, 
+  0x72c31d16, 0xc25e2bc, 0x8b493c28, 0x41950dff, 
+  0x7101a839, 0xdeb30c08, 0x9ce4b4d8, 0x90c15664, 
+  0x6184cb7b, 0x70b632d5, 0x745c6c48, 0x4257b8d0, 
+};
+
+static uint32_t U1[256] = {
+  0xa7f45150, 0x65417e53, 0xa4171ac3, 0x5e273a96, 
+  0x6bab3bcb, 0x459d1ff1, 0x58faacab, 0x3e34b93, 
+  0xfa302055, 0x6d76adf6, 0x76cc8891, 0x4c02f525, 
+  0xd7e54ffc, 0xcb2ac5d7, 0x44352680, 0xa362b58f, 
+  0x5ab1de49, 0x1bba2567, 0xeea4598, 0xc0fe5de1, 
+  0x752fc302, 0xf04c8112, 0x97468da3, 0xf9d36bc6, 
+  0x5f8f03e7, 0x9c921595, 0x7a6dbfeb, 0x595295da, 
+  0x83bed42d, 0x217458d3, 0x69e04929, 0xc8c98e44, 
+  0x89c2756a, 0x798ef478, 0x3e58996b, 0x71b927dd, 
+  0x4fe1beb6, 0xad88f017, 0xac20c966, 0x3ace7db4, 
+  0x4adf6318, 0x311ae582, 0x33519760, 0x7f536245, 
+  0x7764b1e0, 0xae6bbb84, 0xa081fe1c, 0x2b08f994, 
+  0x68487058, 0xfd458f19, 0x6cde9487, 0xf87b52b7, 
+  0xd373ab23, 0x24b72e2, 0x8f1fe357, 0xab55662a, 
+  0x28ebb207, 0xc2b52f03, 0x7bc5869a, 0x837d3a5, 
+  0x872830f2, 0xa5bf23b2, 0x6a0302ba, 0x8216ed5c, 
+  0x1ccf8a2b, 0xb479a792, 0xf207f3f0, 0xe2694ea1, 
+  0xf4da65cd, 0xbe0506d5, 0x6234d11f, 0xfea6c48a, 
+  0x532e349d, 0x55f3a2a0, 0xe18a0532, 0xebf6a475, 
+  0xec830b39, 0xef6040aa, 0x9f715e06, 0x106ebd51, 
+  0x8a213ef9, 0x6dd963d, 0x53eddae, 0xbde64d46, 
+  0x8d5491b5, 0x5dc47105, 0xd406046f, 0x155060ff, 
+  0xfb981924, 0xe9bdd697, 0x434089cc, 0x9ed96777, 
+  0x42e8b0bd, 0x8b890788, 0x5b19e738, 0xeec879db, 
+  0xa7ca147, 0xf427ce9, 0x1e84f8c9, 0x0, 
+  0x86800983, 0xed2b3248, 0x70111eac, 0x725a6c4e, 
+  0xff0efdfb, 0x38850f56, 0xd5ae3d1e, 0x392d3627, 
+  0xd90f0a64, 0xa65c6821, 0x545b9bd1, 0x2e36243a, 
+  0x670a0cb1, 0xe757930f, 0x96eeb4d2, 0x919b1b9e, 
+  0xc5c0804f, 0x20dc61a2, 0x4b775a69, 0x1a121c16, 
+  0xba93e20a, 0x2aa0c0e5, 0xe0223c43, 0x171b121d, 
+  0xd090e0b, 0xc78bf2ad, 0xa8b62db9, 0xa91e14c8, 
+  0x19f15785, 0x775af4c, 0xdd99eebb, 0x607fa3fd, 
+  0x2601f79f, 0xf5725cbc, 0x3b6644c5, 0x7efb5b34, 
+  0x29438b76, 0xc623cbdc, 0xfcedb668, 0xf1e4b863, 
+  0xdc31d7ca, 0x85634210, 0x22971340, 0x11c68420, 
+  0x244a857d, 0x3dbbd2f8, 0x32f9ae11, 0xa129c76d, 
+  0x2f9e1d4b, 0x30b2dcf3, 0x52860dec, 0xe3c177d0, 
+  0x16b32b6c, 0xb970a999, 0x489411fa, 0x64e94722, 
+  0x8cfca8c4, 0x3ff0a01a, 0x2c7d56d8, 0x903322ef, 
+  0x4e4987c7, 0xd138d9c1, 0xa2ca8cfe, 0xbd49836, 
+  0x81f5a6cf, 0xde7aa528, 0x8eb7da26, 0xbfad3fa4, 
+  0x9d3a2ce4, 0x9278500d, 0xcc5f6a9b, 0x467e5462, 
+  0x138df6c2, 0xb8d890e8, 0xf7392e5e, 0xafc382f5, 
+  0x805d9fbe, 0x93d0697c, 0x2dd56fa9, 0x1225cfb3, 
+  0x99acc83b, 0x7d1810a7, 0x639ce86e, 0xbb3bdb7b, 
+  0x7826cd09, 0x18596ef4, 0xb79aec01, 0x9a4f83a8, 
+  0x6e95e665, 0xe6ffaa7e, 0xcfbc2108, 0xe815efe6, 
+  0x9be7bad9, 0x366f4ace, 0x99fead4, 0x7cb029d6, 
+  0xb2a431af, 0x233f2a31, 0x94a5c630, 0x66a235c0, 
+  0xbc4e7437, 0xca82fca6, 0xd090e0b0, 0xd8a73315, 
+  0x9804f14a, 0xdaec41f7, 0x50cd7f0e, 0xf691172f, 
+  0xd64d768d, 0xb0ef434d, 0x4daacc54, 0x496e4df, 
+  0xb5d19ee3, 0x886a4c1b, 0x1f2cc1b8, 0x5165467f, 
+  0xea5e9d04, 0x358c015d, 0x7487fa73, 0x410bfb2e, 
+  0x1d67b35a, 0xd2db9252, 0x5610e933, 0x47d66d13, 
+  0x61d79a8c, 0xca1377a, 0x14f8598e, 0x3c13eb89, 
+  0x27a9ceee, 0xc961b735, 0xe51ce1ed, 0xb1477a3c, 
+  0xdfd29c59, 0x73f2553f, 0xce141879, 0x37c773bf, 
+  0xcdf753ea, 0xaafd5f5b, 0x6f3ddf14, 0xdb447886, 
+  0xf3afca81, 0xc468b93e, 0x3424382c, 0x40a3c25f, 
+  0xc31d1672, 0x25e2bc0c, 0x493c288b, 0x950dff41, 
+  0x1a83971, 0xb30c08de, 0xe4b4d89c, 0xc1566490, 
+  0x84cb7b61, 0xb632d570, 0x5c6c4874, 0x57b8d042, 
+};
+
+static uint32_t U2[256] = {
+  0xf45150a7, 0x417e5365, 0x171ac3a4, 0x273a965e, 
+  0xab3bcb6b, 0x9d1ff145, 0xfaacab58, 0xe34b9303, 
+  0x302055fa, 0x76adf66d, 0xcc889176, 0x2f5254c, 
+  0xe54ffcd7, 0x2ac5d7cb, 0x35268044, 0x62b58fa3, 
+  0xb1de495a, 0xba25671b, 0xea45980e, 0xfe5de1c0, 
+  0x2fc30275, 0x4c8112f0, 0x468da397, 0xd36bc6f9, 
+  0x8f03e75f, 0x9215959c, 0x6dbfeb7a, 0x5295da59, 
+  0xbed42d83, 0x7458d321, 0xe0492969, 0xc98e44c8, 
+  0xc2756a89, 0x8ef47879, 0x58996b3e, 0xb927dd71, 
+  0xe1beb64f, 0x88f017ad, 0x20c966ac, 0xce7db43a, 
+  0xdf63184a, 0x1ae58231, 0x51976033, 0x5362457f, 
+  0x64b1e077, 0x6bbb84ae, 0x81fe1ca0, 0x8f9942b, 
+  0x48705868, 0x458f19fd, 0xde94876c, 0x7b52b7f8, 
+  0x73ab23d3, 0x4b72e202, 0x1fe3578f, 0x55662aab, 
+  0xebb20728, 0xb52f03c2, 0xc5869a7b, 0x37d3a508, 
+  0x2830f287, 0xbf23b2a5, 0x302ba6a, 0x16ed5c82, 
+  0xcf8a2b1c, 0x79a792b4, 0x7f3f0f2, 0x694ea1e2, 
+  0xda65cdf4, 0x506d5be, 0x34d11f62, 0xa6c48afe, 
+  0x2e349d53, 0xf3a2a055, 0x8a0532e1, 0xf6a475eb, 
+  0x830b39ec, 0x6040aaef, 0x715e069f, 0x6ebd5110, 
+  0x213ef98a, 0xdd963d06, 0x3eddae05, 0xe64d46bd, 
+  0x5491b58d, 0xc471055d, 0x6046fd4, 0x5060ff15, 
+  0x981924fb, 0xbdd697e9, 0x4089cc43, 0xd967779e, 
+  0xe8b0bd42, 0x8907888b, 0x19e7385b, 0xc879dbee, 
+  0x7ca1470a, 0x427ce90f, 0x84f8c91e, 0x0, 
+  0x80098386, 0x2b3248ed, 0x111eac70, 0x5a6c4e72, 
+  0xefdfbff, 0x850f5638, 0xae3d1ed5, 0x2d362739, 
+  0xf0a64d9, 0x5c6821a6, 0x5b9bd154, 0x36243a2e, 
+  0xa0cb167, 0x57930fe7, 0xeeb4d296, 0x9b1b9e91, 
+  0xc0804fc5, 0xdc61a220, 0x775a694b, 0x121c161a, 
+  0x93e20aba, 0xa0c0e52a, 0x223c43e0, 0x1b121d17, 
+  0x90e0b0d, 0x8bf2adc7, 0xb62db9a8, 0x1e14c8a9, 
+  0xf1578519, 0x75af4c07, 0x99eebbdd, 0x7fa3fd60, 
+  0x1f79f26, 0x725cbcf5, 0x6644c53b, 0xfb5b347e, 
+  0x438b7629, 0x23cbdcc6, 0xedb668fc, 0xe4b863f1, 
+  0x31d7cadc, 0x63421085, 0x97134022, 0xc6842011, 
+  0x4a857d24, 0xbbd2f83d, 0xf9ae1132, 0x29c76da1, 
+  0x9e1d4b2f, 0xb2dcf330, 0x860dec52, 0xc177d0e3, 
+  0xb32b6c16, 0x70a999b9, 0x9411fa48, 0xe9472264, 
+  0xfca8c48c, 0xf0a01a3f, 0x7d56d82c, 0x3322ef90, 
+  0x4987c74e, 0x38d9c1d1, 0xca8cfea2, 0xd498360b, 
+  0xf5a6cf81, 0x7aa528de, 0xb7da268e, 0xad3fa4bf, 
+  0x3a2ce49d, 0x78500d92, 0x5f6a9bcc, 0x7e546246, 
+  0x8df6c213, 0xd890e8b8, 0x392e5ef7, 0xc382f5af, 
+  0x5d9fbe80, 0xd0697c93, 0xd56fa92d, 0x25cfb312, 
+  0xacc83b99, 0x1810a77d, 0x9ce86e63, 0x3bdb7bbb, 
+  0x26cd0978, 0x596ef418, 0x9aec01b7, 0x4f83a89a, 
+  0x95e6656e, 0xffaa7ee6, 0xbc2108cf, 0x15efe6e8, 
+  0xe7bad99b, 0x6f4ace36, 0x9fead409, 0xb029d67c, 
+  0xa431afb2, 0x3f2a3123, 0xa5c63094, 0xa235c066, 
+  0x4e7437bc, 0x82fca6ca, 0x90e0b0d0, 0xa73315d8, 
+  0x4f14a98, 0xec41f7da, 0xcd7f0e50, 0x91172ff6, 
+  0x4d768dd6, 0xef434db0, 0xaacc544d, 0x96e4df04, 
+  0xd19ee3b5, 0x6a4c1b88, 0x2cc1b81f, 0x65467f51, 
+  0x5e9d04ea, 0x8c015d35, 0x87fa7374, 0xbfb2e41, 
+  0x67b35a1d, 0xdb9252d2, 0x10e93356, 0xd66d1347, 
+  0xd79a8c61, 0xa1377a0c, 0xf8598e14, 0x13eb893c, 
+  0xa9ceee27, 0x61b735c9, 0x1ce1ede5, 0x477a3cb1, 
+  0xd29c59df, 0xf2553f73, 0x141879ce, 0xc773bf37, 
+  0xf753eacd, 0xfd5f5baa, 0x3ddf146f, 0x447886db, 
+  0xafca81f3, 0x68b93ec4, 0x24382c34, 0xa3c25f40, 
+  0x1d1672c3, 0xe2bc0c25, 0x3c288b49, 0xdff4195, 
+  0xa8397101, 0xc08deb3, 0xb4d89ce4, 0x566490c1, 
+  0xcb7b6184, 0x32d570b6, 0x6c48745c, 0xb8d04257, 
+};
+
+static uint32_t U3[256] = {
+  0x5150a7f4, 0x7e536541, 0x1ac3a417, 0x3a965e27, 
+  0x3bcb6bab, 0x1ff1459d, 0xacab58fa, 0x4b9303e3, 
+  0x2055fa30, 0xadf66d76, 0x889176cc, 0xf5254c02, 
+  0x4ffcd7e5, 0xc5d7cb2a, 0x26804435, 0xb58fa362, 
+  0xde495ab1, 0x25671bba, 0x45980eea, 0x5de1c0fe, 
+  0xc302752f, 0x8112f04c, 0x8da39746, 0x6bc6f9d3, 
+  0x3e75f8f, 0x15959c92, 0xbfeb7a6d, 0x95da5952, 
+  0xd42d83be, 0x58d32174, 0x492969e0, 0x8e44c8c9, 
+  0x756a89c2, 0xf478798e, 0x996b3e58, 0x27dd71b9, 
+  0xbeb64fe1, 0xf017ad88, 0xc966ac20, 0x7db43ace, 
+  0x63184adf, 0xe582311a, 0x97603351, 0x62457f53, 
+  0xb1e07764, 0xbb84ae6b, 0xfe1ca081, 0xf9942b08, 
+  0x70586848, 0x8f19fd45, 0x94876cde, 0x52b7f87b, 
+  0xab23d373, 0x72e2024b, 0xe3578f1f, 0x662aab55, 
+  0xb20728eb, 0x2f03c2b5, 0x869a7bc5, 0xd3a50837, 
+  0x30f28728, 0x23b2a5bf, 0x2ba6a03, 0xed5c8216, 
+  0x8a2b1ccf, 0xa792b479, 0xf3f0f207, 0x4ea1e269, 
+  0x65cdf4da, 0x6d5be05, 0xd11f6234, 0xc48afea6, 
+  0x349d532e, 0xa2a055f3, 0x532e18a, 0xa475ebf6, 
+  0xb39ec83, 0x40aaef60, 0x5e069f71, 0xbd51106e, 
+  0x3ef98a21, 0x963d06dd, 0xddae053e, 0x4d46bde6, 
+  0x91b58d54, 0x71055dc4, 0x46fd406, 0x60ff1550, 
+  0x1924fb98, 0xd697e9bd, 0x89cc4340, 0x67779ed9, 
+  0xb0bd42e8, 0x7888b89, 0xe7385b19, 0x79dbeec8, 
+  0xa1470a7c, 0x7ce90f42, 0xf8c91e84, 0x0, 
+  0x9838680, 0x3248ed2b, 0x1eac7011, 0x6c4e725a, 
+  0xfdfbff0e, 0xf563885, 0x3d1ed5ae, 0x3627392d, 
+  0xa64d90f, 0x6821a65c, 0x9bd1545b, 0x243a2e36, 
+  0xcb1670a, 0x930fe757, 0xb4d296ee, 0x1b9e919b, 
+  0x804fc5c0, 0x61a220dc, 0x5a694b77, 0x1c161a12, 
+  0xe20aba93, 0xc0e52aa0, 0x3c43e022, 0x121d171b, 
+  0xe0b0d09, 0xf2adc78b, 0x2db9a8b6, 0x14c8a91e, 
+  0x578519f1, 0xaf4c0775, 0xeebbdd99, 0xa3fd607f, 
+  0xf79f2601, 0x5cbcf572, 0x44c53b66, 0x5b347efb, 
+  0x8b762943, 0xcbdcc623, 0xb668fced, 0xb863f1e4, 
+  0xd7cadc31, 0x42108563, 0x13402297, 0x842011c6, 
+  0x857d244a, 0xd2f83dbb, 0xae1132f9, 0xc76da129, 
+  0x1d4b2f9e, 0xdcf330b2, 0xdec5286, 0x77d0e3c1, 
+  0x2b6c16b3, 0xa999b970, 0x11fa4894, 0x472264e9, 
+  0xa8c48cfc, 0xa01a3ff0, 0x56d82c7d, 0x22ef9033, 
+  0x87c74e49, 0xd9c1d138, 0x8cfea2ca, 0x98360bd4, 
+  0xa6cf81f5, 0xa528de7a, 0xda268eb7, 0x3fa4bfad, 
+  0x2ce49d3a, 0x500d9278, 0x6a9bcc5f, 0x5462467e, 
+  0xf6c2138d, 0x90e8b8d8, 0x2e5ef739, 0x82f5afc3, 
+  0x9fbe805d, 0x697c93d0, 0x6fa92dd5, 0xcfb31225, 
+  0xc83b99ac, 0x10a77d18, 0xe86e639c, 0xdb7bbb3b, 
+  0xcd097826, 0x6ef41859, 0xec01b79a, 0x83a89a4f, 
+  0xe6656e95, 0xaa7ee6ff, 0x2108cfbc, 0xefe6e815, 
+  0xbad99be7, 0x4ace366f, 0xead4099f, 0x29d67cb0, 
+  0x31afb2a4, 0x2a31233f, 0xc63094a5, 0x35c066a2, 
+  0x7437bc4e, 0xfca6ca82, 0xe0b0d090, 0x3315d8a7, 
+  0xf14a9804, 0x41f7daec, 0x7f0e50cd, 0x172ff691, 
+  0x768dd64d, 0x434db0ef, 0xcc544daa, 0xe4df0496, 
+  0x9ee3b5d1, 0x4c1b886a, 0xc1b81f2c, 0x467f5165, 
+  0x9d04ea5e, 0x15d358c, 0xfa737487, 0xfb2e410b, 
+  0xb35a1d67, 0x9252d2db, 0xe9335610, 0x6d1347d6, 
+  0x9a8c61d7, 0x377a0ca1, 0x598e14f8, 0xeb893c13, 
+  0xceee27a9, 0xb735c961, 0xe1ede51c, 0x7a3cb147, 
+  0x9c59dfd2, 0x553f73f2, 0x1879ce14, 0x73bf37c7, 
+  0x53eacdf7, 0x5f5baafd, 0xdf146f3d, 0x7886db44, 
+  0xca81f3af, 0xb93ec468, 0x382c3424, 0xc25f40a3, 
+  0x1672c31d, 0xbc0c25e2, 0x288b493c, 0xff41950d, 
+  0x397101a8, 0x8deb30c, 0xd89ce4b4, 0x6490c156, 
+  0x7b6184cb, 0xd570b632, 0x48745c6c, 0xd04257b8, 
+};
+
+#else /* assume big endian */
+
+static uint32_t T0[256] = {
+  0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d, 
+  0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554, 
+  0x60303050, 0x2010103, 0xce6767a9, 0x562b2b7d, 
+  0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a, 
+  0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87, 
+  0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b, 
+  0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea, 
+  0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b, 
+  0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a, 
+  0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f, 
+  0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108, 
+  0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f, 
+  0x804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e, 
+  0x30181828, 0x379696a1, 0xa05050f, 0x2f9a9ab5, 
+  0xe070709, 0x24121236, 0x1b80809b, 0xdfe2e23d, 
+  0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f, 
+  0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e, 
+  0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb, 
+  0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce, 
+  0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497, 
+  0xa65353f5, 0xb9d1d168, 0x0, 0xc1eded2c, 
+  0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed, 
+  0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b, 
+  0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a, 
+  0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16, 
+  0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594, 
+  0x8a4545cf, 0xe9f9f910, 0x4020206, 0xfe7f7f81, 
+  0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3, 
+  0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x58f8f8a, 
+  0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504, 
+  0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163, 
+  0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d, 
+  0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f, 
+  0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739, 
+  0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47, 
+  0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395, 
+  0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f, 
+  0x44222266, 0x542a2a7e, 0x3b9090ab, 0xb888883, 
+  0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c, 
+  0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76, 
+  0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e, 
+  0x924949db, 0xc06060a, 0x4824246c, 0xb85c5ce4, 
+  0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6, 
+  0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b, 
+  0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7, 
+  0x18d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0, 
+  0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25, 
+  0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818, 
+  0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72, 
+  0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651, 
+  0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21, 
+  0x964b4bdd, 0x61bdbddc, 0xd8b8b86, 0xf8a8a85, 
+  0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa, 
+  0x904848d8, 0x6030305, 0xf7f6f601, 0x1c0e0e12, 
+  0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0, 
+  0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9, 
+  0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133, 
+  0xd26969bb, 0xa9d9d970, 0x78e8e89, 0x339494a7, 
+  0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920, 
+  0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a, 
+  0x38c8c8f, 0x59a1a1f8, 0x9898980, 0x1a0d0d17, 
+  0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8, 
+  0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11, 
+  0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a, 
+};
+
+static uint32_t T1[256] = {
+  0xa5c66363, 0x84f87c7c, 0x99ee7777, 0x8df67b7b, 
+  0xdfff2f2, 0xbdd66b6b, 0xb1de6f6f, 0x5491c5c5, 
+  0x50603030, 0x3020101, 0xa9ce6767, 0x7d562b2b, 
+  0x19e7fefe, 0x62b5d7d7, 0xe64dabab, 0x9aec7676, 
+  0x458fcaca, 0x9d1f8282, 0x4089c9c9, 0x87fa7d7d, 
+  0x15effafa, 0xebb25959, 0xc98e4747, 0xbfbf0f0, 
+  0xec41adad, 0x67b3d4d4, 0xfd5fa2a2, 0xea45afaf, 
+  0xbf239c9c, 0xf753a4a4, 0x96e47272, 0x5b9bc0c0, 
+  0xc275b7b7, 0x1ce1fdfd, 0xae3d9393, 0x6a4c2626, 
+  0x5a6c3636, 0x417e3f3f, 0x2f5f7f7, 0x4f83cccc, 
+  0x5c683434, 0xf451a5a5, 0x34d1e5e5, 0x8f9f1f1, 
+  0x93e27171, 0x73abd8d8, 0x53623131, 0x3f2a1515, 
+  0xc080404, 0x5295c7c7, 0x65462323, 0x5e9dc3c3, 
+  0x28301818, 0xa1379696, 0xf0a0505, 0xb52f9a9a, 
+  0x90e0707, 0x36241212, 0x9b1b8080, 0x3ddfe2e2, 
+  0x26cdebeb, 0x694e2727, 0xcd7fb2b2, 0x9fea7575, 
+  0x1b120909, 0x9e1d8383, 0x74582c2c, 0x2e341a1a, 
+  0x2d361b1b, 0xb2dc6e6e, 0xeeb45a5a, 0xfb5ba0a0, 
+  0xf6a45252, 0x4d763b3b, 0x61b7d6d6, 0xce7db3b3, 
+  0x7b522929, 0x3edde3e3, 0x715e2f2f, 0x97138484, 
+  0xf5a65353, 0x68b9d1d1, 0x0, 0x2cc1eded, 
+  0x60402020, 0x1fe3fcfc, 0xc879b1b1, 0xedb65b5b, 
+  0xbed46a6a, 0x468dcbcb, 0xd967bebe, 0x4b723939, 
+  0xde944a4a, 0xd4984c4c, 0xe8b05858, 0x4a85cfcf, 
+  0x6bbbd0d0, 0x2ac5efef, 0xe54faaaa, 0x16edfbfb, 
+  0xc5864343, 0xd79a4d4d, 0x55663333, 0x94118585, 
+  0xcf8a4545, 0x10e9f9f9, 0x6040202, 0x81fe7f7f, 
+  0xf0a05050, 0x44783c3c, 0xba259f9f, 0xe34ba8a8, 
+  0xf3a25151, 0xfe5da3a3, 0xc0804040, 0x8a058f8f, 
+  0xad3f9292, 0xbc219d9d, 0x48703838, 0x4f1f5f5, 
+  0xdf63bcbc, 0xc177b6b6, 0x75afdada, 0x63422121, 
+  0x30201010, 0x1ae5ffff, 0xefdf3f3, 0x6dbfd2d2, 
+  0x4c81cdcd, 0x14180c0c, 0x35261313, 0x2fc3ecec, 
+  0xe1be5f5f, 0xa2359797, 0xcc884444, 0x392e1717, 
+  0x5793c4c4, 0xf255a7a7, 0x82fc7e7e, 0x477a3d3d, 
+  0xacc86464, 0xe7ba5d5d, 0x2b321919, 0x95e67373, 
+  0xa0c06060, 0x98198181, 0xd19e4f4f, 0x7fa3dcdc, 
+  0x66442222, 0x7e542a2a, 0xab3b9090, 0x830b8888, 
+  0xca8c4646, 0x29c7eeee, 0xd36bb8b8, 0x3c281414, 
+  0x79a7dede, 0xe2bc5e5e, 0x1d160b0b, 0x76addbdb, 
+  0x3bdbe0e0, 0x56643232, 0x4e743a3a, 0x1e140a0a, 
+  0xdb924949, 0xa0c0606, 0x6c482424, 0xe4b85c5c, 
+  0x5d9fc2c2, 0x6ebdd3d3, 0xef43acac, 0xa6c46262, 
+  0xa8399191, 0xa4319595, 0x37d3e4e4, 0x8bf27979, 
+  0x32d5e7e7, 0x438bc8c8, 0x596e3737, 0xb7da6d6d, 
+  0x8c018d8d, 0x64b1d5d5, 0xd29c4e4e, 0xe049a9a9, 
+  0xb4d86c6c, 0xfaac5656, 0x7f3f4f4, 0x25cfeaea, 
+  0xafca6565, 0x8ef47a7a, 0xe947aeae, 0x18100808, 
+  0xd56fbaba, 0x88f07878, 0x6f4a2525, 0x725c2e2e, 
+  0x24381c1c, 0xf157a6a6, 0xc773b4b4, 0x5197c6c6, 
+  0x23cbe8e8, 0x7ca1dddd, 0x9ce87474, 0x213e1f1f, 
+  0xdd964b4b, 0xdc61bdbd, 0x860d8b8b, 0x850f8a8a, 
+  0x90e07070, 0x427c3e3e, 0xc471b5b5, 0xaacc6666, 
+  0xd8904848, 0x5060303, 0x1f7f6f6, 0x121c0e0e, 
+  0xa3c26161, 0x5f6a3535, 0xf9ae5757, 0xd069b9b9, 
+  0x91178686, 0x5899c1c1, 0x273a1d1d, 0xb9279e9e, 
+  0x38d9e1e1, 0x13ebf8f8, 0xb32b9898, 0x33221111, 
+  0xbbd26969, 0x70a9d9d9, 0x89078e8e, 0xa7339494, 
+  0xb62d9b9b, 0x223c1e1e, 0x92158787, 0x20c9e9e9, 
+  0x4987cece, 0xffaa5555, 0x78502828, 0x7aa5dfdf, 
+  0x8f038c8c, 0xf859a1a1, 0x80098989, 0x171a0d0d, 
+  0xda65bfbf, 0x31d7e6e6, 0xc6844242, 0xb8d06868, 
+  0xc3824141, 0xb0299999, 0x775a2d2d, 0x111e0f0f, 
+  0xcb7bb0b0, 0xfca85454, 0xd66dbbbb, 0x3a2c1616, 
+};
+
+static uint32_t T2[256] = {
+  0x63a5c663, 0x7c84f87c, 0x7799ee77, 0x7b8df67b, 
+  0xf20dfff2, 0x6bbdd66b, 0x6fb1de6f, 0xc55491c5, 
+  0x30506030, 0x1030201, 0x67a9ce67, 0x2b7d562b, 
+  0xfe19e7fe, 0xd762b5d7, 0xabe64dab, 0x769aec76, 
+  0xca458fca, 0x829d1f82, 0xc94089c9, 0x7d87fa7d, 
+  0xfa15effa, 0x59ebb259, 0x47c98e47, 0xf00bfbf0, 
+  0xadec41ad, 0xd467b3d4, 0xa2fd5fa2, 0xafea45af, 
+  0x9cbf239c, 0xa4f753a4, 0x7296e472, 0xc05b9bc0, 
+  0xb7c275b7, 0xfd1ce1fd, 0x93ae3d93, 0x266a4c26, 
+  0x365a6c36, 0x3f417e3f, 0xf702f5f7, 0xcc4f83cc, 
+  0x345c6834, 0xa5f451a5, 0xe534d1e5, 0xf108f9f1, 
+  0x7193e271, 0xd873abd8, 0x31536231, 0x153f2a15, 
+  0x40c0804, 0xc75295c7, 0x23654623, 0xc35e9dc3, 
+  0x18283018, 0x96a13796, 0x50f0a05, 0x9ab52f9a, 
+  0x7090e07, 0x12362412, 0x809b1b80, 0xe23ddfe2, 
+  0xeb26cdeb, 0x27694e27, 0xb2cd7fb2, 0x759fea75, 
+  0x91b1209, 0x839e1d83, 0x2c74582c, 0x1a2e341a, 
+  0x1b2d361b, 0x6eb2dc6e, 0x5aeeb45a, 0xa0fb5ba0, 
+  0x52f6a452, 0x3b4d763b, 0xd661b7d6, 0xb3ce7db3, 
+  0x297b5229, 0xe33edde3, 0x2f715e2f, 0x84971384, 
+  0x53f5a653, 0xd168b9d1, 0x0, 0xed2cc1ed, 
+  0x20604020, 0xfc1fe3fc, 0xb1c879b1, 0x5bedb65b, 
+  0x6abed46a, 0xcb468dcb, 0xbed967be, 0x394b7239, 
+  0x4ade944a, 0x4cd4984c, 0x58e8b058, 0xcf4a85cf, 
+  0xd06bbbd0, 0xef2ac5ef, 0xaae54faa, 0xfb16edfb, 
+  0x43c58643, 0x4dd79a4d, 0x33556633, 0x85941185, 
+  0x45cf8a45, 0xf910e9f9, 0x2060402, 0x7f81fe7f, 
+  0x50f0a050, 0x3c44783c, 0x9fba259f, 0xa8e34ba8, 
+  0x51f3a251, 0xa3fe5da3, 0x40c08040, 0x8f8a058f, 
+  0x92ad3f92, 0x9dbc219d, 0x38487038, 0xf504f1f5, 
+  0xbcdf63bc, 0xb6c177b6, 0xda75afda, 0x21634221, 
+  0x10302010, 0xff1ae5ff, 0xf30efdf3, 0xd26dbfd2, 
+  0xcd4c81cd, 0xc14180c, 0x13352613, 0xec2fc3ec, 
+  0x5fe1be5f, 0x97a23597, 0x44cc8844, 0x17392e17, 
+  0xc45793c4, 0xa7f255a7, 0x7e82fc7e, 0x3d477a3d, 
+  0x64acc864, 0x5de7ba5d, 0x192b3219, 0x7395e673, 
+  0x60a0c060, 0x81981981, 0x4fd19e4f, 0xdc7fa3dc, 
+  0x22664422, 0x2a7e542a, 0x90ab3b90, 0x88830b88, 
+  0x46ca8c46, 0xee29c7ee, 0xb8d36bb8, 0x143c2814, 
+  0xde79a7de, 0x5ee2bc5e, 0xb1d160b, 0xdb76addb, 
+  0xe03bdbe0, 0x32566432, 0x3a4e743a, 0xa1e140a, 
+  0x49db9249, 0x60a0c06, 0x246c4824, 0x5ce4b85c, 
+  0xc25d9fc2, 0xd36ebdd3, 0xacef43ac, 0x62a6c462, 
+  0x91a83991, 0x95a43195, 0xe437d3e4, 0x798bf279, 
+  0xe732d5e7, 0xc8438bc8, 0x37596e37, 0x6db7da6d, 
+  0x8d8c018d, 0xd564b1d5, 0x4ed29c4e, 0xa9e049a9, 
+  0x6cb4d86c, 0x56faac56, 0xf407f3f4, 0xea25cfea, 
+  0x65afca65, 0x7a8ef47a, 0xaee947ae, 0x8181008, 
+  0xbad56fba, 0x7888f078, 0x256f4a25, 0x2e725c2e, 
+  0x1c24381c, 0xa6f157a6, 0xb4c773b4, 0xc65197c6, 
+  0xe823cbe8, 0xdd7ca1dd, 0x749ce874, 0x1f213e1f, 
+  0x4bdd964b, 0xbddc61bd, 0x8b860d8b, 0x8a850f8a, 
+  0x7090e070, 0x3e427c3e, 0xb5c471b5, 0x66aacc66, 
+  0x48d89048, 0x3050603, 0xf601f7f6, 0xe121c0e, 
+  0x61a3c261, 0x355f6a35, 0x57f9ae57, 0xb9d069b9, 
+  0x86911786, 0xc15899c1, 0x1d273a1d, 0x9eb9279e, 
+  0xe138d9e1, 0xf813ebf8, 0x98b32b98, 0x11332211, 
+  0x69bbd269, 0xd970a9d9, 0x8e89078e, 0x94a73394, 
+  0x9bb62d9b, 0x1e223c1e, 0x87921587, 0xe920c9e9, 
+  0xce4987ce, 0x55ffaa55, 0x28785028, 0xdf7aa5df, 
+  0x8c8f038c, 0xa1f859a1, 0x89800989, 0xd171a0d, 
+  0xbfda65bf, 0xe631d7e6, 0x42c68442, 0x68b8d068, 
+  0x41c38241, 0x99b02999, 0x2d775a2d, 0xf111e0f, 
+  0xb0cb7bb0, 0x54fca854, 0xbbd66dbb, 0x163a2c16, 
+};
+
+static uint32_t T3[256] = {
+  0x6363a5c6, 0x7c7c84f8, 0x777799ee, 0x7b7b8df6, 
+  0xf2f20dff, 0x6b6bbdd6, 0x6f6fb1de, 0xc5c55491, 
+  0x30305060, 0x1010302, 0x6767a9ce, 0x2b2b7d56, 
+  0xfefe19e7, 0xd7d762b5, 0xababe64d, 0x76769aec, 
+  0xcaca458f, 0x82829d1f, 0xc9c94089, 0x7d7d87fa, 
+  0xfafa15ef, 0x5959ebb2, 0x4747c98e, 0xf0f00bfb, 
+  0xadadec41, 0xd4d467b3, 0xa2a2fd5f, 0xafafea45, 
+  0x9c9cbf23, 0xa4a4f753, 0x727296e4, 0xc0c05b9b, 
+  0xb7b7c275, 0xfdfd1ce1, 0x9393ae3d, 0x26266a4c, 
+  0x36365a6c, 0x3f3f417e, 0xf7f702f5, 0xcccc4f83, 
+  0x34345c68, 0xa5a5f451, 0xe5e534d1, 0xf1f108f9, 
+  0x717193e2, 0xd8d873ab, 0x31315362, 0x15153f2a, 
+  0x4040c08, 0xc7c75295, 0x23236546, 0xc3c35e9d, 
+  0x18182830, 0x9696a137, 0x5050f0a, 0x9a9ab52f, 
+  0x707090e, 0x12123624, 0x80809b1b, 0xe2e23ddf, 
+  0xebeb26cd, 0x2727694e, 0xb2b2cd7f, 0x75759fea, 
+  0x9091b12, 0x83839e1d, 0x2c2c7458, 0x1a1a2e34, 
+  0x1b1b2d36, 0x6e6eb2dc, 0x5a5aeeb4, 0xa0a0fb5b, 
+  0x5252f6a4, 0x3b3b4d76, 0xd6d661b7, 0xb3b3ce7d, 
+  0x29297b52, 0xe3e33edd, 0x2f2f715e, 0x84849713, 
+  0x5353f5a6, 0xd1d168b9, 0x0, 0xeded2cc1, 
+  0x20206040, 0xfcfc1fe3, 0xb1b1c879, 0x5b5bedb6, 
+  0x6a6abed4, 0xcbcb468d, 0xbebed967, 0x39394b72, 
+  0x4a4ade94, 0x4c4cd498, 0x5858e8b0, 0xcfcf4a85, 
+  0xd0d06bbb, 0xefef2ac5, 0xaaaae54f, 0xfbfb16ed, 
+  0x4343c586, 0x4d4dd79a, 0x33335566, 0x85859411, 
+  0x4545cf8a, 0xf9f910e9, 0x2020604, 0x7f7f81fe, 
+  0x5050f0a0, 0x3c3c4478, 0x9f9fba25, 0xa8a8e34b, 
+  0x5151f3a2, 0xa3a3fe5d, 0x4040c080, 0x8f8f8a05, 
+  0x9292ad3f, 0x9d9dbc21, 0x38384870, 0xf5f504f1, 
+  0xbcbcdf63, 0xb6b6c177, 0xdada75af, 0x21216342, 
+  0x10103020, 0xffff1ae5, 0xf3f30efd, 0xd2d26dbf, 
+  0xcdcd4c81, 0xc0c1418, 0x13133526, 0xecec2fc3, 
+  0x5f5fe1be, 0x9797a235, 0x4444cc88, 0x1717392e, 
+  0xc4c45793, 0xa7a7f255, 0x7e7e82fc, 0x3d3d477a, 
+  0x6464acc8, 0x5d5de7ba, 0x19192b32, 0x737395e6, 
+  0x6060a0c0, 0x81819819, 0x4f4fd19e, 0xdcdc7fa3, 
+  0x22226644, 0x2a2a7e54, 0x9090ab3b, 0x8888830b, 
+  0x4646ca8c, 0xeeee29c7, 0xb8b8d36b, 0x14143c28, 
+  0xdede79a7, 0x5e5ee2bc, 0xb0b1d16, 0xdbdb76ad, 
+  0xe0e03bdb, 0x32325664, 0x3a3a4e74, 0xa0a1e14, 
+  0x4949db92, 0x6060a0c, 0x24246c48, 0x5c5ce4b8, 
+  0xc2c25d9f, 0xd3d36ebd, 0xacacef43, 0x6262a6c4, 
+  0x9191a839, 0x9595a431, 0xe4e437d3, 0x79798bf2, 
+  0xe7e732d5, 0xc8c8438b, 0x3737596e, 0x6d6db7da, 
+  0x8d8d8c01, 0xd5d564b1, 0x4e4ed29c, 0xa9a9e049, 
+  0x6c6cb4d8, 0x5656faac, 0xf4f407f3, 0xeaea25cf, 
+  0x6565afca, 0x7a7a8ef4, 0xaeaee947, 0x8081810, 
+  0xbabad56f, 0x787888f0, 0x25256f4a, 0x2e2e725c, 
+  0x1c1c2438, 0xa6a6f157, 0xb4b4c773, 0xc6c65197, 
+  0xe8e823cb, 0xdddd7ca1, 0x74749ce8, 0x1f1f213e, 
+  0x4b4bdd96, 0xbdbddc61, 0x8b8b860d, 0x8a8a850f, 
+  0x707090e0, 0x3e3e427c, 0xb5b5c471, 0x6666aacc, 
+  0x4848d890, 0x3030506, 0xf6f601f7, 0xe0e121c, 
+  0x6161a3c2, 0x35355f6a, 0x5757f9ae, 0xb9b9d069, 
+  0x86869117, 0xc1c15899, 0x1d1d273a, 0x9e9eb927, 
+  0xe1e138d9, 0xf8f813eb, 0x9898b32b, 0x11113322, 
+  0x6969bbd2, 0xd9d970a9, 0x8e8e8907, 0x9494a733, 
+  0x9b9bb62d, 0x1e1e223c, 0x87879215, 0xe9e920c9, 
+  0xcece4987, 0x5555ffaa, 0x28287850, 0xdfdf7aa5, 
+  0x8c8c8f03, 0xa1a1f859, 0x89898009, 0xd0d171a, 
+  0xbfbfda65, 0xe6e631d7, 0x4242c684, 0x6868b8d0, 
+  0x4141c382, 0x9999b029, 0x2d2d775a, 0xf0f111e, 
+  0xb0b0cb7b, 0x5454fca8, 0xbbbbd66d, 0x16163a2c, 
+};
+
+static uint32_t U0[256] = {
+  0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96, 
+  0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393, 
+  0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25, 
+  0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f, 
+  0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1, 
+  0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6, 
+  0x38f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da, 
+  0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844, 
+  0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd, 
+  0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4, 
+  0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45, 
+  0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94, 
+  0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7, 
+  0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a, 
+  0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5, 
+  0x302887f2, 0x23bfa5b2, 0x2036aba, 0xed16825c, 
+  0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1, 
+  0x65daf4cd, 0x605bed5, 0xd134621f, 0xc4a6fe8a, 
+  0x342e539d, 0xa2f355a0, 0x58ae132, 0xa4f6eb75, 
+  0xb83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051, 
+  0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46, 
+  0x91548db5, 0x71c45d05, 0x406d46f, 0x605015ff, 
+  0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77, 
+  0xb0e842bd, 0x7898b88, 0xe7195b38, 0x79c8eedb, 
+  0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x0, 
+  0x9808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e, 
+  0xfd0efffb, 0xf853856, 0x3daed51e, 0x362d3927, 
+  0xa0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a, 
+  0xc0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e, 
+  0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16, 
+  0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d, 
+  0xe090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8, 
+  0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd, 
+  0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34, 
+  0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163, 
+  0xd731dcca, 0x42638510, 0x13972240, 0x84c61120, 
+  0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d, 
+  0x1d9e2f4b, 0xdcb230f3, 0xd8652ec, 0x77c1e3d0, 
+  0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422, 
+  0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef, 
+  0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36, 
+  0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4, 
+  0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662, 
+  0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5, 
+  0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3, 
+  0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b, 
+  0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8, 
+  0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6, 
+  0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6, 
+  0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0, 
+  0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815, 
+  0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f, 
+  0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df, 
+  0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f, 
+  0x9d5eea04, 0x18c355d, 0xfa877473, 0xfb0b412e, 
+  0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713, 
+  0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89, 
+  0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c, 
+  0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf, 
+  0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86, 
+  0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f, 
+  0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541, 
+  0x39a80171, 0x80cb3de, 0xd8b4e49c, 0x6456c190, 
+  0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742
+};
+
+static uint32_t U1[256] = {
+  0x5051f4a7, 0x537e4165, 0xc31a17a4, 0x963a275e, 
+  0xcb3bab6b, 0xf11f9d45, 0xabacfa58, 0x934be303, 
+  0x552030fa, 0xf6ad766d, 0x9188cc76, 0x25f5024c, 
+  0xfc4fe5d7, 0xd7c52acb, 0x80263544, 0x8fb562a3, 
+  0x49deb15a, 0x6725ba1b, 0x9845ea0e, 0xe15dfec0, 
+  0x2c32f75, 0x12814cf0, 0xa38d4697, 0xc66bd3f9, 
+  0xe7038f5f, 0x9515929c, 0xebbf6d7a, 0xda955259, 
+  0x2dd4be83, 0xd3587421, 0x2949e069, 0x448ec9c8, 
+  0x6a75c289, 0x78f48e79, 0x6b99583e, 0xdd27b971, 
+  0xb6bee14f, 0x17f088ad, 0x66c920ac, 0xb47dce3a, 
+  0x1863df4a, 0x82e51a31, 0x60975133, 0x4562537f, 
+  0xe0b16477, 0x84bb6bae, 0x1cfe81a0, 0x94f9082b, 
+  0x58704868, 0x198f45fd, 0x8794de6c, 0xb7527bf8, 
+  0x23ab73d3, 0xe2724b02, 0x57e31f8f, 0x2a6655ab, 
+  0x7b2eb28, 0x32fb5c2, 0x9a86c57b, 0xa5d33708, 
+  0xf2302887, 0xb223bfa5, 0xba02036a, 0x5ced1682, 
+  0x2b8acf1c, 0x92a779b4, 0xf0f307f2, 0xa14e69e2, 
+  0xcd65daf4, 0xd50605be, 0x1fd13462, 0x8ac4a6fe, 
+  0x9d342e53, 0xa0a2f355, 0x32058ae1, 0x75a4f6eb, 
+  0x390b83ec, 0xaa4060ef, 0x65e719f, 0x51bd6e10, 
+  0xf93e218a, 0x3d96dd06, 0xaedd3e05, 0x464de6bd, 
+  0xb591548d, 0x571c45d, 0x6f0406d4, 0xff605015, 
+  0x241998fb, 0x97d6bde9, 0xcc894043, 0x7767d99e, 
+  0xbdb0e842, 0x8807898b, 0x38e7195b, 0xdb79c8ee, 
+  0x47a17c0a, 0xe97c420f, 0xc9f8841e, 0x0, 
+  0x83098086, 0x48322bed, 0xac1e1170, 0x4e6c5a72, 
+  0xfbfd0eff, 0x560f8538, 0x1e3daed5, 0x27362d39, 
+  0x640a0fd9, 0x21685ca6, 0xd19b5b54, 0x3a24362e, 
+  0xb10c0a67, 0xf9357e7, 0xd2b4ee96, 0x9e1b9b91, 
+  0x4f80c0c5, 0xa261dc20, 0x695a774b, 0x161c121a, 
+  0xae293ba, 0xe5c0a02a, 0x433c22e0, 0x1d121b17, 
+  0xb0e090d, 0xadf28bc7, 0xb92db6a8, 0xc8141ea9, 
+  0x8557f119, 0x4caf7507, 0xbbee99dd, 0xfda37f60, 
+  0x9ff70126, 0xbc5c72f5, 0xc544663b, 0x345bfb7e, 
+  0x768b4329, 0xdccb23c6, 0x68b6edfc, 0x63b8e4f1, 
+  0xcad731dc, 0x10426385, 0x40139722, 0x2084c611, 
+  0x7d854a24, 0xf8d2bb3d, 0x11aef932, 0x6dc729a1, 
+  0x4b1d9e2f, 0xf3dcb230, 0xec0d8652, 0xd077c1e3, 
+  0x6c2bb316, 0x99a970b9, 0xfa119448, 0x2247e964, 
+  0xc4a8fc8c, 0x1aa0f03f, 0xd8567d2c, 0xef223390, 
+  0xc787494e, 0xc1d938d1, 0xfe8ccaa2, 0x3698d40b, 
+  0xcfa6f581, 0x28a57ade, 0x26dab78e, 0xa43fadbf, 
+  0xe42c3a9d, 0xd507892, 0x9b6a5fcc, 0x62547e46, 
+  0xc2f68d13, 0xe890d8b8, 0x5e2e39f7, 0xf582c3af, 
+  0xbe9f5d80, 0x7c69d093, 0xa96fd52d, 0xb3cf2512, 
+  0x3bc8ac99, 0xa710187d, 0x6ee89c63, 0x7bdb3bbb, 
+  0x9cd2678, 0xf46e5918, 0x1ec9ab7, 0xa8834f9a, 
+  0x65e6956e, 0x7eaaffe6, 0x821bccf, 0xe6ef15e8, 
+  0xd9bae79b, 0xce4a6f36, 0xd4ea9f09, 0xd629b07c, 
+  0xaf31a4b2, 0x312a3f23, 0x30c6a594, 0xc035a266, 
+  0x37744ebc, 0xa6fc82ca, 0xb0e090d0, 0x1533a7d8, 
+  0x4af10498, 0xf741ecda, 0xe7fcd50, 0x2f1791f6, 
+  0x8d764dd6, 0x4d43efb0, 0x54ccaa4d, 0xdfe49604, 
+  0xe39ed1b5, 0x1b4c6a88, 0xb8c12c1f, 0x7f466551, 
+  0x49d5eea, 0x5d018c35, 0x73fa8774, 0x2efb0b41, 
+  0x5ab3671d, 0x5292dbd2, 0x33e91056, 0x136dd647, 
+  0x8c9ad761, 0x7a37a10c, 0x8e59f814, 0x89eb133c, 
+  0xeecea927, 0x35b761c9, 0xede11ce5, 0x3c7a47b1, 
+  0x599cd2df, 0x3f55f273, 0x791814ce, 0xbf73c737, 
+  0xea53f7cd, 0x5b5ffdaa, 0x14df3d6f, 0x867844db, 
+  0x81caaff3, 0x3eb968c4, 0x2c382434, 0x5fc2a340, 
+  0x72161dc3, 0xcbce225, 0x8b283c49, 0x41ff0d95, 
+  0x7139a801, 0xde080cb3, 0x9cd8b4e4, 0x906456c1, 
+  0x617bcb84, 0x70d532b6, 0x74486c5c, 0x42d0b857
+};
+
+static uint32_t U2[256] = {
+  0xa75051f4, 0x65537e41, 0xa4c31a17, 0x5e963a27, 
+  0x6bcb3bab, 0x45f11f9d, 0x58abacfa, 0x3934be3, 
+  0xfa552030, 0x6df6ad76, 0x769188cc, 0x4c25f502, 
+  0xd7fc4fe5, 0xcbd7c52a, 0x44802635, 0xa38fb562, 
+  0x5a49deb1, 0x1b6725ba, 0xe9845ea, 0xc0e15dfe, 
+  0x7502c32f, 0xf012814c, 0x97a38d46, 0xf9c66bd3, 
+  0x5fe7038f, 0x9c951592, 0x7aebbf6d, 0x59da9552, 
+  0x832dd4be, 0x21d35874, 0x692949e0, 0xc8448ec9, 
+  0x896a75c2, 0x7978f48e, 0x3e6b9958, 0x71dd27b9, 
+  0x4fb6bee1, 0xad17f088, 0xac66c920, 0x3ab47dce, 
+  0x4a1863df, 0x3182e51a, 0x33609751, 0x7f456253, 
+  0x77e0b164, 0xae84bb6b, 0xa01cfe81, 0x2b94f908, 
+  0x68587048, 0xfd198f45, 0x6c8794de, 0xf8b7527b, 
+  0xd323ab73, 0x2e2724b, 0x8f57e31f, 0xab2a6655, 
+  0x2807b2eb, 0xc2032fb5, 0x7b9a86c5, 0x8a5d337, 
+  0x87f23028, 0xa5b223bf, 0x6aba0203, 0x825ced16, 
+  0x1c2b8acf, 0xb492a779, 0xf2f0f307, 0xe2a14e69, 
+  0xf4cd65da, 0xbed50605, 0x621fd134, 0xfe8ac4a6, 
+  0x539d342e, 0x55a0a2f3, 0xe132058a, 0xeb75a4f6, 
+  0xec390b83, 0xefaa4060, 0x9f065e71, 0x1051bd6e, 
+  0x8af93e21, 0x63d96dd, 0x5aedd3e, 0xbd464de6, 
+  0x8db59154, 0x5d0571c4, 0xd46f0406, 0x15ff6050, 
+  0xfb241998, 0xe997d6bd, 0x43cc8940, 0x9e7767d9, 
+  0x42bdb0e8, 0x8b880789, 0x5b38e719, 0xeedb79c8, 
+  0xa47a17c, 0xfe97c42, 0x1ec9f884, 0x0, 
+  0x86830980, 0xed48322b, 0x70ac1e11, 0x724e6c5a, 
+  0xfffbfd0e, 0x38560f85, 0xd51e3dae, 0x3927362d, 
+  0xd9640a0f, 0xa621685c, 0x54d19b5b, 0x2e3a2436, 
+  0x67b10c0a, 0xe70f9357, 0x96d2b4ee, 0x919e1b9b, 
+  0xc54f80c0, 0x20a261dc, 0x4b695a77, 0x1a161c12, 
+  0xba0ae293, 0x2ae5c0a0, 0xe0433c22, 0x171d121b, 
+  0xd0b0e09, 0xc7adf28b, 0xa8b92db6, 0xa9c8141e, 
+  0x198557f1, 0x74caf75, 0xddbbee99, 0x60fda37f, 
+  0x269ff701, 0xf5bc5c72, 0x3bc54466, 0x7e345bfb, 
+  0x29768b43, 0xc6dccb23, 0xfc68b6ed, 0xf163b8e4, 
+  0xdccad731, 0x85104263, 0x22401397, 0x112084c6, 
+  0x247d854a, 0x3df8d2bb, 0x3211aef9, 0xa16dc729, 
+  0x2f4b1d9e, 0x30f3dcb2, 0x52ec0d86, 0xe3d077c1, 
+  0x166c2bb3, 0xb999a970, 0x48fa1194, 0x642247e9, 
+  0x8cc4a8fc, 0x3f1aa0f0, 0x2cd8567d, 0x90ef2233, 
+  0x4ec78749, 0xd1c1d938, 0xa2fe8cca, 0xb3698d4, 
+  0x81cfa6f5, 0xde28a57a, 0x8e26dab7, 0xbfa43fad, 
+  0x9de42c3a, 0x920d5078, 0xcc9b6a5f, 0x4662547e, 
+  0x13c2f68d, 0xb8e890d8, 0xf75e2e39, 0xaff582c3, 
+  0x80be9f5d, 0x937c69d0, 0x2da96fd5, 0x12b3cf25, 
+  0x993bc8ac, 0x7da71018, 0x636ee89c, 0xbb7bdb3b, 
+  0x7809cd26, 0x18f46e59, 0xb701ec9a, 0x9aa8834f, 
+  0x6e65e695, 0xe67eaaff, 0xcf0821bc, 0xe8e6ef15, 
+  0x9bd9bae7, 0x36ce4a6f, 0x9d4ea9f, 0x7cd629b0, 
+  0xb2af31a4, 0x23312a3f, 0x9430c6a5, 0x66c035a2, 
+  0xbc37744e, 0xcaa6fc82, 0xd0b0e090, 0xd81533a7, 
+  0x984af104, 0xdaf741ec, 0x500e7fcd, 0xf62f1791, 
+  0xd68d764d, 0xb04d43ef, 0x4d54ccaa, 0x4dfe496, 
+  0xb5e39ed1, 0x881b4c6a, 0x1fb8c12c, 0x517f4665, 
+  0xea049d5e, 0x355d018c, 0x7473fa87, 0x412efb0b, 
+  0x1d5ab367, 0xd25292db, 0x5633e910, 0x47136dd6, 
+  0x618c9ad7, 0xc7a37a1, 0x148e59f8, 0x3c89eb13, 
+  0x27eecea9, 0xc935b761, 0xe5ede11c, 0xb13c7a47, 
+  0xdf599cd2, 0x733f55f2, 0xce791814, 0x37bf73c7, 
+  0xcdea53f7, 0xaa5b5ffd, 0x6f14df3d, 0xdb867844, 
+  0xf381caaf, 0xc43eb968, 0x342c3824, 0x405fc2a3, 
+  0xc372161d, 0x250cbce2, 0x498b283c, 0x9541ff0d, 
+  0x17139a8, 0xb3de080c, 0xe49cd8b4, 0xc1906456, 
+  0x84617bcb, 0xb670d532, 0x5c74486c, 0x5742d0b8 
+};
+
+static uint32_t U3[256] = {
+  0xf4a75051, 0x4165537e, 0x17a4c31a, 0x275e963a, 
+  0xab6bcb3b, 0x9d45f11f, 0xfa58abac, 0xe303934b, 
+  0x30fa5520, 0x766df6ad, 0xcc769188, 0x24c25f5, 
+  0xe5d7fc4f, 0x2acbd7c5, 0x35448026, 0x62a38fb5, 
+  0xb15a49de, 0xba1b6725, 0xea0e9845, 0xfec0e15d, 
+  0x2f7502c3, 0x4cf01281, 0x4697a38d, 0xd3f9c66b, 
+  0x8f5fe703, 0x929c9515, 0x6d7aebbf, 0x5259da95, 
+  0xbe832dd4, 0x7421d358, 0xe0692949, 0xc9c8448e, 
+  0xc2896a75, 0x8e7978f4, 0x583e6b99, 0xb971dd27, 
+  0xe14fb6be, 0x88ad17f0, 0x20ac66c9, 0xce3ab47d, 
+  0xdf4a1863, 0x1a3182e5, 0x51336097, 0x537f4562, 
+  0x6477e0b1, 0x6bae84bb, 0x81a01cfe, 0x82b94f9, 
+  0x48685870, 0x45fd198f, 0xde6c8794, 0x7bf8b752, 
+  0x73d323ab, 0x4b02e272, 0x1f8f57e3, 0x55ab2a66, 
+  0xeb2807b2, 0xb5c2032f, 0xc57b9a86, 0x3708a5d3, 
+  0x2887f230, 0xbfa5b223, 0x36aba02, 0x16825ced, 
+  0xcf1c2b8a, 0x79b492a7, 0x7f2f0f3, 0x69e2a14e, 
+  0xdaf4cd65, 0x5bed506, 0x34621fd1, 0xa6fe8ac4, 
+  0x2e539d34, 0xf355a0a2, 0x8ae13205, 0xf6eb75a4, 
+  0x83ec390b, 0x60efaa40, 0x719f065e, 0x6e1051bd, 
+  0x218af93e, 0xdd063d96, 0x3e05aedd, 0xe6bd464d, 
+  0x548db591, 0xc45d0571, 0x6d46f04, 0x5015ff60, 
+  0x98fb2419, 0xbde997d6, 0x4043cc89, 0xd99e7767, 
+  0xe842bdb0, 0x898b8807, 0x195b38e7, 0xc8eedb79, 
+  0x7c0a47a1, 0x420fe97c, 0x841ec9f8, 0x0, 
+  0x80868309, 0x2bed4832, 0x1170ac1e, 0x5a724e6c, 
+  0xefffbfd, 0x8538560f, 0xaed51e3d, 0x2d392736, 
+  0xfd9640a, 0x5ca62168, 0x5b54d19b, 0x362e3a24, 
+  0xa67b10c, 0x57e70f93, 0xee96d2b4, 0x9b919e1b, 
+  0xc0c54f80, 0xdc20a261, 0x774b695a, 0x121a161c, 
+  0x93ba0ae2, 0xa02ae5c0, 0x22e0433c, 0x1b171d12, 
+  0x90d0b0e, 0x8bc7adf2, 0xb6a8b92d, 0x1ea9c814, 
+  0xf1198557, 0x75074caf, 0x99ddbbee, 0x7f60fda3, 
+  0x1269ff7, 0x72f5bc5c, 0x663bc544, 0xfb7e345b, 
+  0x4329768b, 0x23c6dccb, 0xedfc68b6, 0xe4f163b8, 
+  0x31dccad7, 0x63851042, 0x97224013, 0xc6112084, 
+  0x4a247d85, 0xbb3df8d2, 0xf93211ae, 0x29a16dc7, 
+  0x9e2f4b1d, 0xb230f3dc, 0x8652ec0d, 0xc1e3d077, 
+  0xb3166c2b, 0x70b999a9, 0x9448fa11, 0xe9642247, 
+  0xfc8cc4a8, 0xf03f1aa0, 0x7d2cd856, 0x3390ef22, 
+  0x494ec787, 0x38d1c1d9, 0xcaa2fe8c, 0xd40b3698, 
+  0xf581cfa6, 0x7ade28a5, 0xb78e26da, 0xadbfa43f, 
+  0x3a9de42c, 0x78920d50, 0x5fcc9b6a, 0x7e466254, 
+  0x8d13c2f6, 0xd8b8e890, 0x39f75e2e, 0xc3aff582, 
+  0x5d80be9f, 0xd0937c69, 0xd52da96f, 0x2512b3cf, 
+  0xac993bc8, 0x187da710, 0x9c636ee8, 0x3bbb7bdb, 
+  0x267809cd, 0x5918f46e, 0x9ab701ec, 0x4f9aa883, 
+  0x956e65e6, 0xffe67eaa, 0xbccf0821, 0x15e8e6ef, 
+  0xe79bd9ba, 0x6f36ce4a, 0x9f09d4ea, 0xb07cd629, 
+  0xa4b2af31, 0x3f23312a, 0xa59430c6, 0xa266c035, 
+  0x4ebc3774, 0x82caa6fc, 0x90d0b0e0, 0xa7d81533, 
+  0x4984af1, 0xecdaf741, 0xcd500e7f, 0x91f62f17, 
+  0x4dd68d76, 0xefb04d43, 0xaa4d54cc, 0x9604dfe4, 
+  0xd1b5e39e, 0x6a881b4c, 0x2c1fb8c1, 0x65517f46, 
+  0x5eea049d, 0x8c355d01, 0x877473fa, 0xb412efb, 
+  0x671d5ab3, 0xdbd25292, 0x105633e9, 0xd647136d, 
+  0xd7618c9a, 0xa10c7a37, 0xf8148e59, 0x133c89eb, 
+  0xa927eece, 0x61c935b7, 0x1ce5ede1, 0x47b13c7a, 
+  0xd2df599c, 0xf2733f55, 0x14ce7918, 0xc737bf73, 
+  0xf7cdea53, 0xfdaa5b5f, 0x3d6f14df, 0x44db8678, 
+  0xaff381ca, 0x68c43eb9, 0x24342c38, 0xa3405fc2, 
+  0x1dc37216, 0xe2250cbc, 0x3c498b28, 0xd9541ff, 
+  0xa8017139, 0xcb3de08, 0xb4e49cd8, 0x56c19064, 
+  0xcb84617b, 0x32b670d5, 0x6c5c7448, 0xb85742d0 
+};
+
+#endif
+
+/* 
+ * the following tables (aes_sbox, aes_inv_sbox, T4, U4) are
+ * endian-neutral 
+ */
+
+static uint8_t
+aes_sbox[256] = {
+  0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 
+  0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, 
+  0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 
+  0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 
+  0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 
+  0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, 
+  0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 
+  0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, 
+  0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 
+  0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 
+  0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 
+  0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, 
+  0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 
+  0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, 
+  0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 
+  0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 
+  0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 
+  0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, 
+  0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 
+  0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, 
+  0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 
+  0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 
+  0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 
+  0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, 
+  0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 
+  0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, 
+  0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 
+  0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 
+  0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 
+  0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, 
+  0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 
+  0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 
+};
+
+#ifndef CPU_RISC
+static uint8_t
+aes_inv_sbox[256] = {
+  0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 
+  0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
+  0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
+  0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
+  0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 
+  0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+  0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2,
+  0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
+  0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 
+  0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
+  0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 
+  0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+  0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 
+  0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
+  0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 
+  0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
+  0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 
+  0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+  0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 
+  0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
+  0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 
+  0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
+  0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 
+  0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+  0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 
+  0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
+  0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 
+  0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
+  0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 
+  0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+  0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 
+  0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
+};
+#endif /* ! CPU_RISC */
+
+#ifdef CPU_RISC
+static uint32_t
+T4[256] = { 
+  0x63636363, 0x7c7c7c7c, 0x77777777, 0x7b7b7b7b,
+  0xf2f2f2f2, 0x6b6b6b6b, 0x6f6f6f6f, 0xc5c5c5c5, 
+  0x30303030, 0x01010101, 0x67676767, 0x2b2b2b2b, 
+  0xfefefefe, 0xd7d7d7d7, 0xabababab, 0x76767676, 
+  0xcacacaca, 0x82828282, 0xc9c9c9c9, 0x7d7d7d7d, 
+  0xfafafafa, 0x59595959, 0x47474747, 0xf0f0f0f0,
+  0xadadadad, 0xd4d4d4d4, 0xa2a2a2a2, 0xafafafaf,
+  0x9c9c9c9c, 0xa4a4a4a4, 0x72727272, 0xc0c0c0c0,
+  0xb7b7b7b7, 0xfdfdfdfd, 0x93939393, 0x26262626,
+  0x36363636, 0x3f3f3f3f, 0xf7f7f7f7, 0xcccccccc,
+  0x34343434, 0xa5a5a5a5, 0xe5e5e5e5, 0xf1f1f1f1,
+  0x71717171, 0xd8d8d8d8, 0x31313131, 0x15151515,
+  0x04040404, 0xc7c7c7c7, 0x23232323, 0xc3c3c3c3,
+  0x18181818, 0x96969696, 0x05050505, 0x9a9a9a9a,
+  0x07070707, 0x12121212, 0x80808080, 0xe2e2e2e2,
+  0xebebebeb, 0x27272727, 0xb2b2b2b2, 0x75757575,
+  0x09090909, 0x83838383, 0x2c2c2c2c, 0x1a1a1a1a, 
+  0x1b1b1b1b, 0x6e6e6e6e, 0x5a5a5a5a, 0xa0a0a0a0,
+  0x52525252, 0x3b3b3b3b, 0xd6d6d6d6, 0xb3b3b3b3,
+  0x29292929, 0xe3e3e3e3, 0x2f2f2f2f, 0x84848484,
+  0x53535353, 0xd1d1d1d1, 0x00000000, 0xedededed,
+  0x20202020, 0xfcfcfcfc, 0xb1b1b1b1, 0x5b5b5b5b,
+  0x6a6a6a6a, 0xcbcbcbcb, 0xbebebebe, 0x39393939,
+  0x4a4a4a4a, 0x4c4c4c4c, 0x58585858, 0xcfcfcfcf,
+  0xd0d0d0d0, 0xefefefef, 0xaaaaaaaa, 0xfbfbfbfb,
+  0x43434343, 0x4d4d4d4d, 0x33333333, 0x85858585,
+  0x45454545, 0xf9f9f9f9, 0x02020202, 0x7f7f7f7f,
+  0x50505050, 0x3c3c3c3c, 0x9f9f9f9f, 0xa8a8a8a8,
+  0x51515151, 0xa3a3a3a3, 0x40404040, 0x8f8f8f8f,
+  0x92929292, 0x9d9d9d9d, 0x38383838, 0xf5f5f5f5,
+  0xbcbcbcbc, 0xb6b6b6b6, 0xdadadada, 0x21212121,
+  0x10101010, 0xffffffff, 0xf3f3f3f3, 0xd2d2d2d2,
+  0xcdcdcdcd, 0x0c0c0c0c, 0x13131313, 0xecececec,
+  0x5f5f5f5f, 0x97979797, 0x44444444, 0x17171717,
+  0xc4c4c4c4, 0xa7a7a7a7, 0x7e7e7e7e, 0x3d3d3d3d,
+  0x64646464, 0x5d5d5d5d, 0x19191919, 0x73737373,
+  0x60606060, 0x81818181, 0x4f4f4f4f, 0xdcdcdcdc,
+  0x22222222, 0x2a2a2a2a, 0x90909090, 0x88888888,
+  0x46464646, 0xeeeeeeee, 0xb8b8b8b8, 0x14141414, 
+  0xdededede, 0x5e5e5e5e, 0x0b0b0b0b, 0xdbdbdbdb, 
+  0xe0e0e0e0, 0x32323232, 0x3a3a3a3a, 0x0a0a0a0a,
+  0x49494949, 0x06060606, 0x24242424, 0x5c5c5c5c,
+  0xc2c2c2c2, 0xd3d3d3d3, 0xacacacac, 0x62626262, 
+  0x91919191, 0x95959595, 0xe4e4e4e4, 0x79797979,
+  0xe7e7e7e7, 0xc8c8c8c8, 0x37373737, 0x6d6d6d6d,
+  0x8d8d8d8d, 0xd5d5d5d5, 0x4e4e4e4e, 0xa9a9a9a9, 
+  0x6c6c6c6c, 0x56565656, 0xf4f4f4f4, 0xeaeaeaea,
+  0x65656565, 0x7a7a7a7a, 0xaeaeaeae, 0x08080808, 
+  0xbabababa, 0x78787878, 0x25252525, 0x2e2e2e2e,
+  0x1c1c1c1c, 0xa6a6a6a6, 0xb4b4b4b4, 0xc6c6c6c6,
+  0xe8e8e8e8, 0xdddddddd, 0x74747474, 0x1f1f1f1f,
+  0x4b4b4b4b, 0xbdbdbdbd, 0x8b8b8b8b, 0x8a8a8a8a,
+  0x70707070, 0x3e3e3e3e, 0xb5b5b5b5, 0x66666666,
+  0x48484848, 0x03030303, 0xf6f6f6f6, 0x0e0e0e0e,
+  0x61616161, 0x35353535, 0x57575757, 0xb9b9b9b9,
+  0x86868686, 0xc1c1c1c1, 0x1d1d1d1d, 0x9e9e9e9e,
+  0xe1e1e1e1, 0xf8f8f8f8, 0x98989898, 0x11111111, 
+  0x69696969, 0xd9d9d9d9, 0x8e8e8e8e, 0x94949494,
+  0x9b9b9b9b, 0x1e1e1e1e, 0x87878787, 0xe9e9e9e9,
+  0xcececece, 0x55555555, 0x28282828, 0xdfdfdfdf,
+  0x8c8c8c8c, 0xa1a1a1a1, 0x89898989, 0x0d0d0d0d,
+  0xbfbfbfbf, 0xe6e6e6e6, 0x42424242, 0x68686868,
+  0x41414141, 0x99999999, 0x2d2d2d2d, 0x0f0f0f0f,
+  0xb0b0b0b0, 0x54545454, 0xbbbbbbbb, 0x16161616
+};
+
+static uint32_t U4[256] = {
+  0x52525252, 0x9090909, 0x6a6a6a6a, 0xd5d5d5d5, 
+  0x30303030, 0x36363636, 0xa5a5a5a5, 0x38383838, 
+  0xbfbfbfbf, 0x40404040, 0xa3a3a3a3, 0x9e9e9e9e, 
+  0x81818181, 0xf3f3f3f3, 0xd7d7d7d7, 0xfbfbfbfb, 
+  0x7c7c7c7c, 0xe3e3e3e3, 0x39393939, 0x82828282, 
+  0x9b9b9b9b, 0x2f2f2f2f, 0xffffffff, 0x87878787, 
+  0x34343434, 0x8e8e8e8e, 0x43434343, 0x44444444, 
+  0xc4c4c4c4, 0xdededede, 0xe9e9e9e9, 0xcbcbcbcb, 
+  0x54545454, 0x7b7b7b7b, 0x94949494, 0x32323232, 
+  0xa6a6a6a6, 0xc2c2c2c2, 0x23232323, 0x3d3d3d3d, 
+  0xeeeeeeee, 0x4c4c4c4c, 0x95959595, 0xb0b0b0b, 
+  0x42424242, 0xfafafafa, 0xc3c3c3c3, 0x4e4e4e4e, 
+  0x8080808, 0x2e2e2e2e, 0xa1a1a1a1, 0x66666666, 
+  0x28282828, 0xd9d9d9d9, 0x24242424, 0xb2b2b2b2, 
+  0x76767676, 0x5b5b5b5b, 0xa2a2a2a2, 0x49494949, 
+  0x6d6d6d6d, 0x8b8b8b8b, 0xd1d1d1d1, 0x25252525, 
+  0x72727272, 0xf8f8f8f8, 0xf6f6f6f6, 0x64646464, 
+  0x86868686, 0x68686868, 0x98989898, 0x16161616, 
+  0xd4d4d4d4, 0xa4a4a4a4, 0x5c5c5c5c, 0xcccccccc, 
+  0x5d5d5d5d, 0x65656565, 0xb6b6b6b6, 0x92929292, 
+  0x6c6c6c6c, 0x70707070, 0x48484848, 0x50505050, 
+  0xfdfdfdfd, 0xedededed, 0xb9b9b9b9, 0xdadadada, 
+  0x5e5e5e5e, 0x15151515, 0x46464646, 0x57575757, 
+  0xa7a7a7a7, 0x8d8d8d8d, 0x9d9d9d9d, 0x84848484, 
+  0x90909090, 0xd8d8d8d8, 0xabababab, 0x0, 
+  0x8c8c8c8c, 0xbcbcbcbc, 0xd3d3d3d3, 0xa0a0a0a, 
+  0xf7f7f7f7, 0xe4e4e4e4, 0x58585858, 0x5050505, 
+  0xb8b8b8b8, 0xb3b3b3b3, 0x45454545, 0x6060606, 
+  0xd0d0d0d0, 0x2c2c2c2c, 0x1e1e1e1e, 0x8f8f8f8f, 
+  0xcacacaca, 0x3f3f3f3f, 0xf0f0f0f, 0x2020202, 
+  0xc1c1c1c1, 0xafafafaf, 0xbdbdbdbd, 0x3030303, 
+  0x1010101, 0x13131313, 0x8a8a8a8a, 0x6b6b6b6b, 
+  0x3a3a3a3a, 0x91919191, 0x11111111, 0x41414141, 
+  0x4f4f4f4f, 0x67676767, 0xdcdcdcdc, 0xeaeaeaea, 
+  0x97979797, 0xf2f2f2f2, 0xcfcfcfcf, 0xcececece, 
+  0xf0f0f0f0, 0xb4b4b4b4, 0xe6e6e6e6, 0x73737373, 
+  0x96969696, 0xacacacac, 0x74747474, 0x22222222, 
+  0xe7e7e7e7, 0xadadadad, 0x35353535, 0x85858585, 
+  0xe2e2e2e2, 0xf9f9f9f9, 0x37373737, 0xe8e8e8e8, 
+  0x1c1c1c1c, 0x75757575, 0xdfdfdfdf, 0x6e6e6e6e, 
+  0x47474747, 0xf1f1f1f1, 0x1a1a1a1a, 0x71717171, 
+  0x1d1d1d1d, 0x29292929, 0xc5c5c5c5, 0x89898989, 
+  0x6f6f6f6f, 0xb7b7b7b7, 0x62626262, 0xe0e0e0e, 
+  0xaaaaaaaa, 0x18181818, 0xbebebebe, 0x1b1b1b1b, 
+  0xfcfcfcfc, 0x56565656, 0x3e3e3e3e, 0x4b4b4b4b, 
+  0xc6c6c6c6, 0xd2d2d2d2, 0x79797979, 0x20202020, 
+  0x9a9a9a9a, 0xdbdbdbdb, 0xc0c0c0c0, 0xfefefefe, 
+  0x78787878, 0xcdcdcdcd, 0x5a5a5a5a, 0xf4f4f4f4, 
+  0x1f1f1f1f, 0xdddddddd, 0xa8a8a8a8, 0x33333333, 
+  0x88888888, 0x7070707, 0xc7c7c7c7, 0x31313131, 
+  0xb1b1b1b1, 0x12121212, 0x10101010, 0x59595959, 
+  0x27272727, 0x80808080, 0xecececec, 0x5f5f5f5f, 
+  0x60606060, 0x51515151, 0x7f7f7f7f, 0xa9a9a9a9, 
+  0x19191919, 0xb5b5b5b5, 0x4a4a4a4a, 0xd0d0d0d, 
+  0x2d2d2d2d, 0xe5e5e5e5, 0x7a7a7a7a, 0x9f9f9f9f, 
+  0x93939393, 0xc9c9c9c9, 0x9c9c9c9c, 0xefefefef, 
+  0xa0a0a0a0, 0xe0e0e0e0, 0x3b3b3b3b, 0x4d4d4d4d, 
+  0xaeaeaeae, 0x2a2a2a2a, 0xf5f5f5f5, 0xb0b0b0b0, 
+  0xc8c8c8c8, 0xebebebeb, 0xbbbbbbbb, 0x3c3c3c3c, 
+  0x83838383, 0x53535353, 0x99999999, 0x61616161, 
+  0x17171717, 0x2b2b2b2b, 0x4040404, 0x7e7e7e7e, 
+  0xbabababa, 0x77777777, 0xd6d6d6d6, 0x26262626, 
+  0xe1e1e1e1, 0x69696969, 0x14141414, 0x63636363, 
+  0x55555555, 0x21212121, 0xc0c0c0c, 0x7d7d7d7d
+};
+#endif /* CPU_RISC */
+
+
+/* aes internals */
+
+extern debug_module_t mod_aes_icm;
+
+static void
+aes_128_expand_encryption_key(const uint8_t *key, 
+			      aes_expanded_key_t *expanded_key) {
+  int i;
+  gf2_8 rc;
+
+  /* initialize round constant */
+  rc = 1;
+
+  expanded_key->num_rounds = 10;
+
+  v128_copy_octet_string(&expanded_key->round[0], key);
+
+#if 0
+  debug_print(mod_aes_icm, 
+	      "expanded key[0]:  %s", v128_hex_string(&expanded_key->round[0])); 
+#endif
+
+  /* loop over round keys */
+  for (i=1; i < 11; i++) {
+
+    /* munge first word of round key */
+    expanded_key->round[i].v8[0] = aes_sbox[expanded_key->round[i-1].v8[13]] ^ rc;
+    expanded_key->round[i].v8[1] = aes_sbox[expanded_key->round[i-1].v8[14]];
+    expanded_key->round[i].v8[2] = aes_sbox[expanded_key->round[i-1].v8[15]];
+    expanded_key->round[i].v8[3] = aes_sbox[expanded_key->round[i-1].v8[12]];
+
+    expanded_key->round[i].v32[0] ^=  expanded_key->round[i-1].v32[0];
+
+    /* set remaining 32 bit words to the exor of the one previous with
+     * the one four words previous */
+
+    expanded_key->round[i].v32[1] =
+      expanded_key->round[i].v32[0] ^ expanded_key->round[i-1].v32[1];
+
+    expanded_key->round[i].v32[2] =
+      expanded_key->round[i].v32[1] ^ expanded_key->round[i-1].v32[2];
+
+    expanded_key->round[i].v32[3] =
+      expanded_key->round[i].v32[2] ^ expanded_key->round[i-1].v32[3];
+
+#if 0
+	debug_print2(mod_aes_icm, 
+				"expanded key[%d]:  %s", i,v128_hex_string(&expanded_key->round[i])); 
+#endif
+
+    /* modify round constant */
+    rc = gf2_8_shift(rc);
+
+  }
+}
+
+static void
+aes_256_expand_encryption_key(const unsigned char *key, 
+			      aes_expanded_key_t *expanded_key) {
+  int i;
+  gf2_8 rc;
+
+  /* initialize round constant */
+  rc = 1;
+
+  expanded_key->num_rounds = 14;
+
+  v128_copy_octet_string(&expanded_key->round[0], key);
+  v128_copy_octet_string(&expanded_key->round[1], key+16);
+
+#if 0
+  debug_print(mod_aes_icm, 
+	      "expanded key[0]:  %s", v128_hex_string(&expanded_key->round[0])); 
+  debug_print(mod_aes_icm, 
+	      "expanded key[1]:  %s", v128_hex_string(&expanded_key->round[1])); 
+#endif
+
+  /* loop over rest of round keys */
+  for (i=2; i < 15; i++) {
+
+    /* munge first word of round key */
+    if ((i & 1) == 0) {
+      expanded_key->round[i].v8[0] = aes_sbox[expanded_key->round[i-1].v8[13]] ^ rc;
+      expanded_key->round[i].v8[1] = aes_sbox[expanded_key->round[i-1].v8[14]];
+      expanded_key->round[i].v8[2] = aes_sbox[expanded_key->round[i-1].v8[15]];
+      expanded_key->round[i].v8[3] = aes_sbox[expanded_key->round[i-1].v8[12]];
+
+      /* modify round constant */
+      rc = gf2_8_shift(rc);
+    }
+    else {
+      expanded_key->round[i].v8[0] = aes_sbox[expanded_key->round[i-1].v8[12]];
+      expanded_key->round[i].v8[1] = aes_sbox[expanded_key->round[i-1].v8[13]];
+      expanded_key->round[i].v8[2] = aes_sbox[expanded_key->round[i-1].v8[14]];
+      expanded_key->round[i].v8[3] = aes_sbox[expanded_key->round[i-1].v8[15]];
+    }
+
+    expanded_key->round[i].v32[0] ^=  expanded_key->round[i-2].v32[0];
+
+    /* set remaining 32 bit words to the exor of the one previous with
+     * the one eight words previous */
+
+    expanded_key->round[i].v32[1] =
+      expanded_key->round[i].v32[0] ^ expanded_key->round[i-2].v32[1];
+
+    expanded_key->round[i].v32[2] =
+      expanded_key->round[i].v32[1] ^ expanded_key->round[i-2].v32[2];
+
+    expanded_key->round[i].v32[3] =
+      expanded_key->round[i].v32[2] ^ expanded_key->round[i-2].v32[3];
+
+#if 0
+    debug_print2(mod_aes_icm, 
+		 "expanded key[%d]:  %s", i,v128_hex_string(&expanded_key->round[i])); 
+#endif
+
+  }
+}
+
+err_status_t
+aes_expand_encryption_key(const uint8_t *key, 
+			  int key_len,
+			  aes_expanded_key_t *expanded_key) {
+  if (key_len == 16) {
+    aes_128_expand_encryption_key(key, expanded_key);
+    return err_status_ok;
+  }
+  else if (key_len == 24) {
+    /* AES-192 not yet supported */
+    return err_status_bad_param;
+  }
+  else if (key_len == 32) {
+    aes_256_expand_encryption_key(key, expanded_key);
+    return err_status_ok;
+  }
+  else
+    return err_status_bad_param;
+}
+
+err_status_t
+aes_expand_decryption_key(const uint8_t *key, 
+			  int key_len,
+			  aes_expanded_key_t *expanded_key) {
+  int i;
+  err_status_t status;
+  int num_rounds = expanded_key->num_rounds;
+
+  status = aes_expand_encryption_key(key, key_len, expanded_key);
+  if (status)
+    return status;
+
+  /* invert the order of the round keys */
+  for (i=0; i < num_rounds/2; i++) {
+    v128_t tmp;
+    v128_copy(&tmp, &expanded_key->round[num_rounds-i]);
+    v128_copy(&expanded_key->round[num_rounds-i], &expanded_key->round[i]);
+    v128_copy(&expanded_key->round[i], &tmp);
+  }
+
+  /* 
+   * apply the inverse mixColumn transform to the round keys (except
+   * for the first and the last)  
+   *
+   * mixColumn is implemented by using the tables U0, U1, U2, U3,
+   * followed by the T4 table (which cancels out the use of the sbox
+   * in the U-tables)
+   */
+  for (i=1; i < num_rounds; i++) {
+#ifdef CPU_RISC
+    uint32_t tmp;
+
+    tmp = expanded_key->round[i].v32[0];
+    expanded_key->round[i].v32[0] = 
+      U0[T4[(tmp >> 24)       ] & 0xff] ^ 
+      U1[T4[(tmp >> 16) & 0xff] & 0xff] ^ 
+      U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^ 
+      U3[T4[(tmp)       & 0xff] & 0xff];
+
+    tmp = expanded_key->round[i].v32[1];
+    expanded_key->round[i].v32[1] = 
+      U0[T4[(tmp >> 24)       ] & 0xff] ^ 
+      U1[T4[(tmp >> 16) & 0xff] & 0xff] ^ 
+      U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^ 
+      U3[T4[(tmp)       & 0xff] & 0xff];
+
+    tmp = expanded_key->round[i].v32[2];
+    expanded_key->round[i].v32[2] = 
+      U0[T4[(tmp >> 24)       ] & 0xff] ^ 
+      U1[T4[(tmp >> 16) & 0xff] & 0xff] ^ 
+      U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^ 
+      U3[T4[(tmp)       & 0xff] & 0xff];
+
+    tmp = expanded_key->round[i].v32[3];
+    expanded_key->round[i].v32[3] = 
+      U0[T4[(tmp >> 24)       ] & 0xff] ^ 
+      U1[T4[(tmp >> 16) & 0xff] & 0xff] ^ 
+      U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^ 
+      U3[T4[(tmp)       & 0xff] & 0xff];
+#else /* assume CPU_CISC */
+
+    uint32_t c0, c1, c2, c3;
+
+    c0 = U0[aes_sbox[expanded_key->round[i].v8[0]]] 
+       ^ U1[aes_sbox[expanded_key->round[i].v8[1]]] 
+       ^ U2[aes_sbox[expanded_key->round[i].v8[2]]] 
+       ^ U3[aes_sbox[expanded_key->round[i].v8[3]]];
+
+    c1 = U0[aes_sbox[expanded_key->round[i].v8[4]]] 
+       ^ U1[aes_sbox[expanded_key->round[i].v8[5]]] 
+       ^ U2[aes_sbox[expanded_key->round[i].v8[6]]] 
+       ^ U3[aes_sbox[expanded_key->round[i].v8[7]]];
+
+    c2 = U0[aes_sbox[expanded_key->round[i].v8[8]]] 
+       ^ U1[aes_sbox[expanded_key->round[i].v8[9]]] 
+       ^ U2[aes_sbox[expanded_key->round[i].v8[10]]] 
+       ^ U3[aes_sbox[expanded_key->round[i].v8[11]]];
+
+    c3 = U0[aes_sbox[expanded_key->round[i].v8[12]]] 
+       ^ U1[aes_sbox[expanded_key->round[i].v8[13]]] 
+       ^ U2[aes_sbox[expanded_key->round[i].v8[14]]] 
+       ^ U3[aes_sbox[expanded_key->round[i].v8[15]]];
+
+    expanded_key->round[i].v32[0] = c0;
+    expanded_key->round[i].v32[1] = c1;
+    expanded_key->round[i].v32[2] = c2;
+    expanded_key->round[i].v32[3] = c3;
+
+#endif     
+  }
+
+  return err_status_ok;
+}
+
+#ifdef CPU_CISC
+
+
+static inline void
+aes_round(v128_t *state, const v128_t *round_key) {
+  uint32_t column0, column1, column2, column3;
+
+  /* compute the columns of the output square in terms of the octets
+     of state, using the tables T0, T1, T2, T3 */
+
+  column0 = T0[state->v8[0]] ^ T1[state->v8[5]]
+    ^ T2[state->v8[10]] ^ T3[state->v8[15]];
+
+  column1 = T0[state->v8[4]] ^ T1[state->v8[9]]
+    ^ T2[state->v8[14]] ^ T3[state->v8[3]];
+
+  column2 = T0[state->v8[8]] ^ T1[state->v8[13]]
+    ^ T2[state->v8[2]] ^ T3[state->v8[7]];
+
+  column3 = T0[state->v8[12]] ^ T1[state->v8[1]]
+    ^ T2[state->v8[6]] ^ T3[state->v8[11]];
+
+  state->v32[0] = column0 ^ round_key->v32[0];
+  state->v32[1] = column1 ^ round_key->v32[1];
+  state->v32[2] = column2 ^ round_key->v32[2];
+  state->v32[3] = column3 ^ round_key->v32[3];
+
+}
+
+
+static inline void
+aes_inv_round(v128_t *state, const v128_t *round_key) {
+  uint32_t column0, column1, column2, column3;
+
+  /* compute the columns of the output square in terms of the octets
+     of state, using the tables U0, U1, U2, U3 */
+
+  column0 = U0[state->v8[0]] ^ U1[state->v8[13]]
+    ^ U2[state->v8[10]] ^ U3[state->v8[7]];
+
+  column1 = U0[state->v8[4]] ^ U1[state->v8[1]]
+    ^ U2[state->v8[14]] ^ U3[state->v8[11]];
+
+  column2 = U0[state->v8[8]] ^ U1[state->v8[5]]
+    ^ U2[state->v8[2]] ^ U3[state->v8[15]];
+
+  column3 = U0[state->v8[12]] ^ U1[state->v8[9]]
+    ^ U2[state->v8[6]] ^ U3[state->v8[3]];
+
+  state->v32[0] = column0 ^ round_key->v32[0];
+  state->v32[1] = column1 ^ round_key->v32[1];
+  state->v32[2] = column2 ^ round_key->v32[2];
+  state->v32[3] = column3 ^ round_key->v32[3];
+
+}
+
+static inline void
+aes_final_round(v128_t *state, const v128_t *round_key) {
+  uint8_t tmp;
+
+  /* byte substitutions and row shifts */
+  /* first row - no shift */
+  state->v8[0] = aes_sbox[state->v8[0]];
+  state->v8[4] = aes_sbox[state->v8[4]];
+  state->v8[8] = aes_sbox[state->v8[8]];
+  state->v8[12] = aes_sbox[state->v8[12]];
+
+  /* second row - shift one left */
+  tmp = aes_sbox[state->v8[1]];
+  state->v8[1] = aes_sbox[state->v8[5]];
+  state->v8[5] = aes_sbox[state->v8[9]];
+  state->v8[9] = aes_sbox[state->v8[13]];
+  state->v8[13] = tmp;
+
+  /* third row - shift two left */
+  tmp = aes_sbox[state->v8[10]];
+  state->v8[10] = aes_sbox[state->v8[2]];
+  state->v8[2] = tmp;
+  tmp = aes_sbox[state->v8[14]];
+  state->v8[14] = aes_sbox[state->v8[6]];
+  state->v8[6] = tmp; 
+
+  /* fourth row - shift three left */
+  tmp = aes_sbox[state->v8[15]];
+  state->v8[15] = aes_sbox[state->v8[11]];
+  state->v8[11] = aes_sbox[state->v8[7]];
+  state->v8[7] = aes_sbox[state->v8[3]];
+  state->v8[3] = tmp;
+
+  v128_xor_eq(state, round_key);
+}
+
+static inline void
+aes_inv_final_round(v128_t *state, const v128_t *round_key) {
+  uint8_t tmp;
+
+  /* byte substitutions and row shifts */
+  /* first row - no shift */
+  state->v8[0] = aes_inv_sbox[state->v8[0]];
+  state->v8[4] = aes_inv_sbox[state->v8[4]];
+  state->v8[8] = aes_inv_sbox[state->v8[8]];
+  state->v8[12] = aes_inv_sbox[state->v8[12]];
+
+  /* second row - shift one right */
+  tmp = aes_inv_sbox[state->v8[13]];
+  state->v8[13] = aes_inv_sbox[state->v8[9]];
+  state->v8[9] = aes_inv_sbox[state->v8[5]];
+  state->v8[5] = aes_inv_sbox[state->v8[1]];
+  state->v8[1] = tmp;
+
+  /* third row - shift two right */
+  tmp = aes_inv_sbox[state->v8[2]];
+  state->v8[2] = aes_inv_sbox[state->v8[10]];
+  state->v8[10] = tmp;
+  tmp = aes_inv_sbox[state->v8[6]];
+  state->v8[6] = aes_inv_sbox[state->v8[14]];
+  state->v8[14] = tmp; 
+
+  /* fourth row - shift three right */
+  tmp = aes_inv_sbox[state->v8[3]];
+  state->v8[3] = aes_inv_sbox[state->v8[7]];
+  state->v8[7] = aes_inv_sbox[state->v8[11]];
+  state->v8[11] = aes_inv_sbox[state->v8[15]];
+  state->v8[15] = tmp;
+
+  v128_xor_eq(state, round_key);
+}
+
+
+#elif CPU_RISC
+
+static inline void
+aes_round(v128_t *state, const v128_t *round_key) {
+  uint32_t column0, column1, column2, column3;
+
+  /* compute the columns of the output square in terms of the octets
+     of state, using the tables T0, T1, T2, T3 */
+#ifdef WORDS_BIGENDIAN
+  column0 = T0[state->v32[0] >> 24] ^ T1[(state->v32[1] >> 16) & 0xff]
+    ^ T2[(state->v32[2] >> 8) & 0xff] ^ T3[state->v32[3] & 0xff];
+
+  column1 = T0[state->v32[1] >> 24] ^ T1[(state->v32[2] >> 16) & 0xff]
+    ^ T2[(state->v32[3] >> 8) & 0xff] ^ T3[state->v32[0] & 0xff];
+
+  column2 = T0[state->v32[2] >> 24] ^ T1[(state->v32[3] >> 16) & 0xff]
+    ^ T2[(state->v32[0] >> 8) & 0xff] ^ T3[state->v32[1] & 0xff];
+
+  column3 = T0[state->v32[3] >> 24] ^ T1[(state->v32[0] >> 16) & 0xff]
+    ^ T2[(state->v32[1] >> 8) & 0xff] ^ T3[state->v32[2] & 0xff];
+#else
+  column0 = T0[state->v32[0] & 0xff] ^ T1[(state->v32[1] >> 8) & 0xff]
+	^ T2[(state->v32[2] >> 16) & 0xff] ^ T3[state->v32[3] >> 24];
+
+  column1 = T0[state->v32[1] & 0xff] ^ T1[(state->v32[2] >> 8) & 0xff]
+	^ T2[(state->v32[3] >> 16) & 0xff] ^ T3[state->v32[0] >> 24];
+
+  column2 = T0[state->v32[2] & 0xff] ^ T1[(state->v32[3] >> 8) & 0xff]
+	^ T2[(state->v32[0] >> 16) & 0xff] ^ T3[state->v32[1] >> 24];
+
+  column3 = T0[state->v32[3] & 0xff] ^ T1[(state->v32[0] >> 8) & 0xff]
+	^ T2[(state->v32[1] >> 16) & 0xff] ^ T3[state->v32[2] >> 24];
+#endif /* WORDS_BIGENDIAN */
+
+  state->v32[0] = column0 ^ round_key->v32[0];
+  state->v32[1] = column1 ^ round_key->v32[1];
+  state->v32[2] = column2 ^ round_key->v32[2];
+  state->v32[3] = column3 ^ round_key->v32[3];
+
+}
+
+static inline void
+aes_inv_round(v128_t *state, const v128_t *round_key) {
+  uint32_t column0, column1, column2, column3;
+
+  /* compute the columns of the output square in terms of the octets
+     of state, using the tables U0, U1, U2, U3 */
+
+#ifdef WORDS_BIGENDIAN
+  /* FIX!  WRong indexes */
+  column0 = U0[state->v32[0] >> 24] ^ U1[(state->v32[3] >> 16) & 0xff]
+    ^ U2[(state->v32[2] >> 8) & 0xff] ^ U3[state->v32[1] & 0xff];
+
+  column1 = U0[state->v32[1] >> 24] ^ U1[(state->v32[0] >> 16) & 0xff]
+    ^ U2[(state->v32[3] >> 8) & 0xff] ^ U3[state->v32[2] & 0xff];
+
+  column2 = U0[state->v32[2] >> 24] ^ U1[(state->v32[1] >> 16) & 0xff]
+    ^ U2[(state->v32[0] >> 8) & 0xff] ^ U3[state->v32[3] & 0xff];
+
+  column3 = U0[state->v32[3] >> 24] ^ U1[(state->v32[2] >> 16) & 0xff]
+    ^ U2[(state->v32[1] >> 8) & 0xff] ^ U3[state->v32[0] & 0xff];
+#else
+  column0 = U0[state->v32[0] & 0xff] ^ U1[(state->v32[1] >> 8) & 0xff]
+	^ U2[(state->v32[2] >> 16) & 0xff] ^ U3[state->v32[3] >> 24];
+
+  column1 = U0[state->v32[1] & 0xff] ^ U1[(state->v32[2] >> 8) & 0xff]
+	^ U2[(state->v32[3] >> 16) & 0xff] ^ U3[state->v32[0] >> 24];
+
+  column2 = U0[state->v32[2] & 0xff] ^ U1[(state->v32[3] >> 8) & 0xff]
+	^ U2[(state->v32[0] >> 16) & 0xff] ^ U3[state->v32[1] >> 24];
+
+  column3 = U0[state->v32[3] & 0xff] ^ U1[(state->v32[0] >> 8) & 0xff]
+	^ U2[(state->v32[1] >> 16) & 0xff] ^ U3[state->v32[2] >> 24];
+#endif /* WORDS_BIGENDIAN */
+
+  state->v32[0] = column0 ^ round_key->v32[0];
+  state->v32[1] = column1 ^ round_key->v32[1];
+  state->v32[2] = column2 ^ round_key->v32[2];
+  state->v32[3] = column3 ^ round_key->v32[3];
+
+}
+
+static inline void
+aes_final_round(v128_t *state, const v128_t *round_key) {
+  uint32_t tmp0, tmp1, tmp2, tmp3;
+
+  tmp0 = (T4[(state->v32[0] >> 24)]        & 0xff000000) 
+       ^ (T4[(state->v32[1] >> 16) & 0xff] & 0x00ff0000) 
+       ^ (T4[(state->v32[2] >>  8) & 0xff] & 0x0000ff00) 
+       ^ (T4[(state->v32[3]      ) & 0xff] & 0x000000ff) 
+       ^ round_key->v32[0];
+
+  tmp1 = (T4[(state->v32[1] >> 24)]        & 0xff000000)
+       ^ (T4[(state->v32[2] >> 16) & 0xff] & 0x00ff0000)
+       ^ (T4[(state->v32[3] >>  8) & 0xff] & 0x0000ff00)
+       ^ (T4[(state->v32[0]      ) & 0xff] & 0x000000ff)
+       ^ round_key->v32[1];
+
+  tmp2 = (T4[(state->v32[2] >> 24)]        & 0xff000000)
+       ^ (T4[(state->v32[3] >> 16) & 0xff] & 0x00ff0000)
+       ^ (T4[(state->v32[0] >>  8) & 0xff] & 0x0000ff00)
+       ^ (T4[(state->v32[1]      ) & 0xff] & 0x000000ff)
+       ^ round_key->v32[2];
+
+  tmp3 = (T4[(state->v32[3] >> 24)]        & 0xff000000)
+       ^ (T4[(state->v32[0] >> 16) & 0xff] & 0x00ff0000)
+       ^ (T4[(state->v32[1] >>  8) & 0xff] & 0x0000ff00)
+       ^ (T4[(state->v32[2]      ) & 0xff] & 0x000000ff)
+       ^ round_key->v32[3];
+
+  state->v32[0] = tmp0;
+  state->v32[1] = tmp1;
+  state->v32[2] = tmp2;
+  state->v32[3] = tmp3;
+
+}
+
+static inline void
+aes_inv_final_round(v128_t *state, const v128_t *round_key) {
+  uint32_t tmp0, tmp1, tmp2, tmp3;
+
+  tmp0 = (U4[(state->v32[0] >> 24)]        & 0xff000000) 
+       ^ (U4[(state->v32[3] >> 16) & 0xff] & 0x00ff0000) 
+       ^ (U4[(state->v32[2] >>  8) & 0xff] & 0x0000ff00) 
+       ^ (U4[(state->v32[1]      ) & 0xff] & 0x000000ff) 
+       ^ round_key->v32[0];
+
+  tmp1 = (U4[(state->v32[1] >> 24)]        & 0xff000000)
+       ^ (U4[(state->v32[0] >> 16) & 0xff] & 0x00ff0000)
+       ^ (U4[(state->v32[3] >>  8) & 0xff] & 0x0000ff00)
+       ^ (U4[(state->v32[2]      ) & 0xff] & 0x000000ff)
+       ^ round_key->v32[1];
+
+  tmp2 = (U4[(state->v32[2] >> 24)]        & 0xff000000)
+       ^ (U4[(state->v32[1] >> 16) & 0xff] & 0x00ff0000)
+       ^ (U4[(state->v32[0] >>  8) & 0xff] & 0x0000ff00)
+       ^ (U4[(state->v32[3]      ) & 0xff] & 0x000000ff)
+       ^ round_key->v32[2];
+
+  tmp3 = (U4[(state->v32[3] >> 24)]        & 0xff000000)
+       ^ (U4[(state->v32[2] >> 16) & 0xff] & 0x00ff0000)
+       ^ (U4[(state->v32[1] >>  8) & 0xff] & 0x0000ff00)
+       ^ (U4[(state->v32[0]      ) & 0xff] & 0x000000ff)
+       ^ round_key->v32[3];
+
+  state->v32[0] = tmp0;
+  state->v32[1] = tmp1;
+  state->v32[2] = tmp2;
+  state->v32[3] = tmp3;
+
+}
+
+#elif CPU_16  /* assume 16-bit word size on processor */
+
+static inline void
+aes_round(v128_t *state, const v128_t *round_key) {
+  uint32_t column0, column1, column2, column3;
+  uint16_t c
+  /* compute the columns of the output square in terms of the octets
+     of state, using the tables T0, T1, T2, T3 */
+
+  column0 = T0[state->v8[0]] ^ T1[state->v8[5]]
+    ^ T2[state->v8[10]] ^ T3[state->v8[15]];
+
+  column1 = T0[state->v8[4]] ^ T1[state->v8[9]]
+    ^ T2[state->v8[14]] ^ T3[state->v8[3]];
+
+  column2 = T0[state->v8[8]] ^ T1[state->v8[13]]
+    ^ T2[state->v8[2]] ^ T3[state->v8[7]];
+
+  column3 = T0[state->v8[12]] ^ T1[state->v8[1]]
+    ^ T2[state->v8[6]] ^ T3[state->v8[11]];
+
+  state->v32[0] = column0 ^ round_key->v32[0];
+  state->v32[1] = column1 ^ round_key->v32[1];
+  state->v32[2] = column2 ^ round_key->v32[2];
+  state->v32[3] = column3 ^ round_key->v32[3];
+
+}
+
+
+static inline void
+aes_inv_round(v128_t *state, const v128_t *round_key) {
+  uint32_t column0, column1, column2, column3;
+
+  /* compute the columns of the output square in terms of the octets
+     of state, using the tables U0, U1, U2, U3 */
+
+  column0 = U0[state->v8[0]] ^ U1[state->v8[5]]
+    ^ U2[state->v8[10]] ^ U3[state->v8[15]];
+
+  column1 = U0[state->v8[4]] ^ U1[state->v8[9]]
+    ^ U2[state->v8[14]] ^ U3[state->v8[3]];
+
+  column2 = U0[state->v8[8]] ^ U1[state->v8[13]]
+    ^ U2[state->v8[2]] ^ U3[state->v8[7]];
+
+  column3 = U0[state->v8[12]] ^ U1[state->v8[1]]
+    ^ U2[state->v8[6]] ^ U3[state->v8[11]];
+
+  state->v32[0] = column0 ^ round_key->v32[0];
+  state->v32[1] = column1 ^ round_key->v32[1];
+  state->v32[2] = column2 ^ round_key->v32[2];
+  state->v32[3] = column3 ^ round_key->v32[3];
+
+}
+
+static inline void
+aes_final_round(v128_t *state, const v128_t *round_key) {
+  uint8_t tmp;
+
+  /* byte substitutions and row shifts */
+  /* first row - no shift */
+  state->v8[0] = aes_sbox[state->v8[0]];
+  state->v8[4] = aes_sbox[state->v8[4]];
+  state->v8[8] = aes_sbox[state->v8[8]];
+  state->v8[12] = aes_sbox[state->v8[12]];
+
+  /* second row - shift one left */
+  tmp = aes_sbox[state->v8[1]];
+  state->v8[1] = aes_sbox[state->v8[5]];
+  state->v8[5] = aes_sbox[state->v8[9]];
+  state->v8[9] = aes_sbox[state->v8[13]];
+  state->v8[13] = tmp;
+
+  /* third row - shift two left */
+  tmp = aes_sbox[state->v8[10]];
+  state->v8[10] = aes_sbox[state->v8[2]];
+  state->v8[2] = tmp;
+  tmp = aes_sbox[state->v8[14]];
+  state->v8[14] = aes_sbox[state->v8[6]];
+  state->v8[6] = tmp; 
+
+  /* fourth row - shift three left */
+  tmp = aes_sbox[state->v8[15]];
+  state->v8[15] = aes_sbox[state->v8[11]];
+  state->v8[11] = aes_sbox[state->v8[7]];
+  state->v8[7] = aes_sbox[state->v8[3]];
+  state->v8[3] = tmp;
+
+  v128_xor_eq(state, round_key);
+}
+
+static inline void
+aes_inv_final_round(v128_t *state, const v128_t *round_key) {
+  uint8_t tmp;
+
+  /* byte substitutions and row shifts */
+  /* first row - no shift */
+  state->v8[0] = aes_inv_sbox[state->v8[0]];
+  state->v8[4] = aes_inv_sbox[state->v8[4]];
+  state->v8[8] = aes_inv_sbox[state->v8[8]];
+  state->v8[12] = aes_inv_sbox[state->v8[12]];
+
+  /* second row - shift one left */
+  tmp = aes_inv_sbox[state->v8[1]];
+  state->v8[1] = aes_inv_sbox[state->v8[5]];
+  state->v8[5] = aes_inv_sbox[state->v8[9]];
+  state->v8[9] = aes_inv_sbox[state->v8[13]];
+  state->v8[13] = tmp;
+
+  /* third row - shift two left */
+  tmp = aes_inv_sbox[state->v8[10]];
+  state->v8[10] = aes_inv_sbox[state->v8[2]];
+  state->v8[2] = tmp;
+  tmp = aes_inv_sbox[state->v8[14]];
+  state->v8[14] = aes_inv_sbox[state->v8[6]];
+  state->v8[6] = tmp; 
+
+  /* fourth row - shift three left */
+  tmp = aes_inv_sbox[state->v8[15]];
+  state->v8[15] = aes_inv_sbox[state->v8[11]];
+  state->v8[11] = aes_inv_sbox[state->v8[7]];
+  state->v8[7] = aes_inv_sbox[state->v8[3]];
+  state->v8[3] = tmp;
+
+  v128_xor_eq(state, round_key);
+}
+
+#endif  /* CPU type */
+
+
+void
+aes_encrypt(v128_t *plaintext, const aes_expanded_key_t *exp_key) {
+
+  /* add in the subkey */
+  v128_xor_eq(plaintext, &exp_key->round[0]);
+
+  /* now do the rounds */
+  aes_round(plaintext, &exp_key->round[1]);
+  aes_round(plaintext, &exp_key->round[2]);
+  aes_round(plaintext, &exp_key->round[3]);
+  aes_round(plaintext, &exp_key->round[4]);
+  aes_round(plaintext, &exp_key->round[5]);
+  aes_round(plaintext, &exp_key->round[6]);
+  aes_round(plaintext, &exp_key->round[7]);
+  aes_round(plaintext, &exp_key->round[8]);  
+  aes_round(plaintext, &exp_key->round[9]);
+  if (exp_key->num_rounds == 10) {
+    aes_final_round(plaintext, &exp_key->round[10]);
+  }
+  else if (exp_key->num_rounds == 12) {
+    aes_round(plaintext, &exp_key->round[10]);  
+    aes_round(plaintext, &exp_key->round[11]);
+    aes_final_round(plaintext, &exp_key->round[12]);
+  }
+  else if (exp_key->num_rounds == 14) {
+    aes_round(plaintext, &exp_key->round[10]);  
+    aes_round(plaintext, &exp_key->round[11]);
+    aes_round(plaintext, &exp_key->round[12]);  
+    aes_round(plaintext, &exp_key->round[13]);
+    aes_final_round(plaintext, &exp_key->round[14]);  
+  }
+}
+
+void
+aes_decrypt(v128_t *plaintext, const aes_expanded_key_t *exp_key) {
+
+  /* add in the subkey */
+  v128_xor_eq(plaintext, &exp_key->round[0]);
+
+  /* now do the rounds */
+  aes_inv_round(plaintext, &exp_key->round[1]);
+  aes_inv_round(plaintext, &exp_key->round[2]);
+  aes_inv_round(plaintext, &exp_key->round[3]);
+  aes_inv_round(plaintext, &exp_key->round[4]);
+  aes_inv_round(plaintext, &exp_key->round[5]);
+  aes_inv_round(plaintext, &exp_key->round[6]);
+  aes_inv_round(plaintext, &exp_key->round[7]);
+  aes_inv_round(plaintext, &exp_key->round[8]);  
+  aes_inv_round(plaintext, &exp_key->round[9]);
+  if (exp_key->num_rounds == 10) {
+    aes_inv_final_round(plaintext, &exp_key->round[10]);  
+  }
+  else if (exp_key->num_rounds == 12) {
+    aes_inv_round(plaintext, &exp_key->round[10]);  
+    aes_inv_round(plaintext, &exp_key->round[11]);
+    aes_inv_final_round(plaintext, &exp_key->round[12]);  
+  }
+  else if (exp_key->num_rounds == 14) {
+    aes_inv_round(plaintext, &exp_key->round[10]);  
+    aes_inv_round(plaintext, &exp_key->round[11]);
+    aes_inv_round(plaintext, &exp_key->round[12]);  
+    aes_inv_round(plaintext, &exp_key->round[13]);
+    aes_inv_final_round(plaintext, &exp_key->round[14]);  
+  }
+}
diff --git a/netwerk/srtp/src/crypto/cipher/aes_cbc.c b/netwerk/srtp/src/crypto/cipher/aes_cbc.c
new file mode 100644
index 000000000..ed33f5b01
--- /dev/null
+++ b/netwerk/srtp/src/crypto/cipher/aes_cbc.c
@@ -0,0 +1,540 @@
+/*
+ * aes_cbc.c
+ *
+ * AES Cipher Block Chaining Mode
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "aes_cbc.h"
+#include "alloc.h"
+
+debug_module_t mod_aes_cbc = {
+  0,                 /* debugging is off by default */
+  "aes cbc"          /* printable module name       */
+};
+
+
+
+err_status_t
+aes_cbc_alloc(cipher_t **c, int key_len) {
+  extern cipher_type_t aes_cbc;
+  uint8_t *pointer;
+  int tmp;
+
+  debug_print(mod_aes_cbc, 
+	      "allocating cipher with key length %d", key_len);
+
+  if (key_len != 16 && key_len != 24 && key_len != 32)
+    return err_status_bad_param;
+  
+  /* allocate memory a cipher of type aes_cbc */
+  tmp = (sizeof(aes_cbc_ctx_t) + sizeof(cipher_t));
+  pointer = (uint8_t*)crypto_alloc(tmp);
+  if (pointer == NULL) 
+    return err_status_alloc_fail;
+
+  /* set pointers */
+  *c = (cipher_t *)pointer;
+  (*c)->type = &aes_cbc;
+  (*c)->state = pointer + sizeof(cipher_t);
+
+  /* increment ref_count */
+  aes_cbc.ref_count++;
+
+  /* set key size        */
+  (*c)->key_len = key_len;
+
+  return err_status_ok;  
+}
+
+err_status_t
+aes_cbc_dealloc(cipher_t *c) {
+  extern cipher_type_t aes_cbc;
+
+  /* zeroize entire state*/
+  octet_string_set_to_zero((uint8_t *)c, 
+			   sizeof(aes_cbc_ctx_t) + sizeof(cipher_t));
+
+  /* free memory */
+  crypto_free(c);
+
+  /* decrement ref_count */
+  aes_cbc.ref_count--;
+  
+  return err_status_ok;  
+}
+
+err_status_t
+aes_cbc_context_init(aes_cbc_ctx_t *c, const uint8_t *key, int key_len,
+		     cipher_direction_t dir) {
+  err_status_t status;
+
+  debug_print(mod_aes_cbc, 
+	      "key:  %s", octet_string_hex_string(key, key_len)); 
+
+  /* expand key for the appropriate direction */
+  switch (dir) {
+  case (direction_encrypt):
+    status = aes_expand_encryption_key(key, key_len, &c->expanded_key);
+    if (status)
+      return status;
+    break;
+  case (direction_decrypt):
+    status = aes_expand_decryption_key(key, key_len, &c->expanded_key);
+    if (status)
+      return status;
+    break;
+  default:
+    return err_status_bad_param;
+  }
+
+
+  return err_status_ok;
+}
+
+
+err_status_t
+aes_cbc_set_iv(aes_cbc_ctx_t *c, void *iv) {
+  int i;
+/*   v128_t *input = iv; */
+  uint8_t *input = (uint8_t*) iv;
+ 
+  /* set state and 'previous' block to iv */
+  for (i=0; i < 16; i++) 
+    c->previous.v8[i] = c->state.v8[i] = input[i];
+
+  debug_print(mod_aes_cbc, "setting iv: %s", v128_hex_string(&c->state)); 
+
+  return err_status_ok;
+}
+
+err_status_t
+aes_cbc_encrypt(aes_cbc_ctx_t *c,
+		unsigned char *data, 
+		unsigned int *bytes_in_data) {
+  int i;
+  unsigned char *input  = data;   /* pointer to data being read    */
+  unsigned char *output = data;   /* pointer to data being written */
+  int bytes_to_encr = *bytes_in_data;
+
+  /*
+   * verify that we're 16-octet aligned
+   */
+  if (*bytes_in_data & 0xf) 
+    return err_status_bad_param;
+
+  /*
+   * note that we assume that the initialization vector has already
+   * been set, e.g. by calling aes_cbc_set_iv()
+   */
+  debug_print(mod_aes_cbc, "iv: %s", 
+	      v128_hex_string(&c->state));
+  
+  /*
+   * loop over plaintext blocks, exoring state into plaintext then
+   * encrypting and writing to output
+   */
+  while (bytes_to_encr > 0) {
+    
+    /* exor plaintext into state */
+    for (i=0; i < 16; i++)
+      c->state.v8[i] ^= *input++;
+
+    debug_print(mod_aes_cbc, "inblock:  %s", 
+	      v128_hex_string(&c->state));
+
+    aes_encrypt(&c->state, &c->expanded_key);
+
+    debug_print(mod_aes_cbc, "outblock: %s", 
+	      v128_hex_string(&c->state));
+
+    /* copy ciphertext to output */
+    for (i=0; i < 16; i++)
+      *output++ = c->state.v8[i];
+
+    bytes_to_encr -= 16;
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+aes_cbc_decrypt(aes_cbc_ctx_t *c,
+		unsigned char *data, 
+		unsigned int *bytes_in_data) {
+  int i;
+  v128_t state, previous;
+  unsigned char *input  = data;   /* pointer to data being read    */
+  unsigned char *output = data;   /* pointer to data being written */
+  int bytes_to_encr = *bytes_in_data;
+  uint8_t tmp;
+
+  /*
+   * verify that we're 16-octet aligned
+   */
+  if (*bytes_in_data & 0x0f)
+    return err_status_bad_param;    
+
+  /* set 'previous' block to iv*/
+  for (i=0; i < 16; i++) {
+    previous.v8[i] = c->previous.v8[i];
+  }
+
+  debug_print(mod_aes_cbc, "iv: %s", 
+	      v128_hex_string(&previous));
+  
+  /*
+   * loop over ciphertext blocks, decrypting then exoring with state
+   * then writing plaintext to output
+   */
+  while (bytes_to_encr > 0) {
+    
+    /* set state to ciphertext input block */
+    for (i=0; i < 16; i++) {
+     state.v8[i] = *input++;
+    }
+
+    debug_print(mod_aes_cbc, "inblock:  %s", 
+	      v128_hex_string(&state));
+    
+    /* decrypt state */
+    aes_decrypt(&state, &c->expanded_key);
+
+    debug_print(mod_aes_cbc, "outblock: %s", 
+	      v128_hex_string(&state));
+
+    /* 
+     * exor previous ciphertext block out of plaintext, and write new
+     * plaintext block to output, while copying old ciphertext block
+     * to the 'previous' block
+     */
+    for (i=0; i < 16; i++) {
+      tmp = *output;
+      *output++ = state.v8[i] ^ previous.v8[i];
+      previous.v8[i] = tmp;
+    }
+
+    bytes_to_encr -= 16;
+  }
+
+  return err_status_ok;
+}
+
+
+err_status_t
+aes_cbc_nist_encrypt(aes_cbc_ctx_t *c,
+		     unsigned char *data, 
+		     unsigned int *bytes_in_data) {
+  int i;
+  unsigned char *pad_start; 
+  int num_pad_bytes;
+  err_status_t status;
+
+  /* 
+   * determine the number of padding bytes that we need to add - 
+   * this value is always between 1 and 16, inclusive.
+   */
+  num_pad_bytes = 16 - (*bytes_in_data & 0xf);
+  pad_start = data;
+  pad_start += *bytes_in_data;
+  *pad_start++ = 0xa0;
+  for (i=0; i < num_pad_bytes; i++) 
+    *pad_start++ = 0x00;
+   
+  /* 
+   * increment the data size 
+   */
+  *bytes_in_data += num_pad_bytes;  
+
+  /*
+   * now cbc encrypt the padded data 
+   */
+  status = aes_cbc_encrypt(c, data, bytes_in_data);
+  if (status) 
+    return status;
+
+  return err_status_ok;
+}
+
+
+err_status_t
+aes_cbc_nist_decrypt(aes_cbc_ctx_t *c,
+		     unsigned char *data, 
+		     unsigned int *bytes_in_data) {
+  unsigned char *pad_end;
+  int num_pad_bytes;
+  err_status_t status;
+
+  /*
+   * cbc decrypt the padded data 
+   */
+  status = aes_cbc_decrypt(c, data, bytes_in_data);
+  if (status) 
+    return status;
+
+  /*
+   * determine the number of padding bytes in the decrypted plaintext
+   * - this value is always between 1 and 16, inclusive.
+   */
+  num_pad_bytes = 1;
+  pad_end = data + (*bytes_in_data - 1);
+  while (*pad_end != 0xa0) {   /* note: should check padding correctness */
+    pad_end--;
+    num_pad_bytes++;
+  }
+  
+  /* decrement data size */
+  *bytes_in_data -= num_pad_bytes;  
+
+  return err_status_ok;
+}
+
+
+char 
+aes_cbc_description[] = "aes cipher block chaining (cbc) mode";
+
+/*
+ * Test case 0 is derived from FIPS 197 Appendix C; it uses an
+ * all-zero IV, so that the first block encryption matches the test
+ * case in that appendix.  This property provides a check of the base
+ * AES encryption and decryption algorithms; if CBC fails on some
+ * particular platform, then you should print out AES intermediate
+ * data and compare with the detailed info provided in that appendix.
+ *
+ */
+
+
+uint8_t aes_cbc_test_case_0_key[16] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+};
+
+uint8_t aes_cbc_test_case_0_plaintext[64] =  {
+  0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+  0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff 
+};
+
+uint8_t aes_cbc_test_case_0_ciphertext[80] = {
+  0x69, 0xc4, 0xe0, 0xd8, 0x6a, 0x7b, 0x04, 0x30, 
+  0xd8, 0xcd, 0xb7, 0x80, 0x70, 0xb4, 0xc5, 0x5a,
+  0x03, 0x35, 0xed, 0x27, 0x67, 0xf2, 0x6d, 0xf1, 
+  0x64, 0x83, 0x2e, 0x23, 0x44, 0x38, 0x70, 0x8b
+
+};
+
+uint8_t aes_cbc_test_case_0_iv[16] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+
+cipher_test_case_t aes_cbc_test_case_0 = {
+  16,                                    /* octets in key            */
+  aes_cbc_test_case_0_key,               /* key                      */
+  aes_cbc_test_case_0_iv,                /* initialization vector    */
+  16,                                    /* octets in plaintext      */
+  aes_cbc_test_case_0_plaintext,         /* plaintext                */
+  32,                                    /* octets in ciphertext     */
+  aes_cbc_test_case_0_ciphertext,        /* ciphertext               */
+  NULL                                   /* pointer to next testcase */
+};
+
+
+/*
+ * this test case is taken directly from Appendix F.2 of NIST Special
+ * Publication SP 800-38A
+ */
+
+uint8_t aes_cbc_test_case_1_key[16] = {
+  0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+  0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c,
+};
+
+uint8_t aes_cbc_test_case_1_plaintext[64] =  {
+  0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 
+  0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+  0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 
+  0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+  0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+  0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+  0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 
+  0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+};
+
+uint8_t aes_cbc_test_case_1_ciphertext[80] = {
+  0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46,
+  0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d,
+  0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee,
+  0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
+  0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b,
+  0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16, 
+  0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 
+  0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7,
+  0x39, 0x34, 0x07, 0x03, 0x36, 0xd0, 0x77, 0x99, 
+  0xe0, 0xc4, 0x2f, 0xdd, 0xa8, 0xdf, 0x4c, 0xa3
+};
+
+uint8_t aes_cbc_test_case_1_iv[16] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+};
+
+cipher_test_case_t aes_cbc_test_case_1 = {
+  16,                                    /* octets in key            */
+  aes_cbc_test_case_1_key,               /* key                      */
+  aes_cbc_test_case_1_iv,                /* initialization vector    */
+  64,                                    /* octets in plaintext      */
+  aes_cbc_test_case_1_plaintext,         /* plaintext                */
+  80,                                    /* octets in ciphertext     */
+  aes_cbc_test_case_1_ciphertext,        /* ciphertext               */
+  &aes_cbc_test_case_0                    /* pointer to next testcase */
+};
+
+/*
+ * Test case 2 is like test case 0, but for 256-bit keys. (FIPS 197 
+ * appendix C.3).
+ */
+
+
+uint8_t aes_cbc_test_case_2_key[32] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 
+  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
+};
+
+uint8_t aes_cbc_test_case_2_plaintext[64] =  {
+  0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+  0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff 
+};
+
+uint8_t aes_cbc_test_case_2_ciphertext[80] = {
+  0x8e, 0xa2, 0xb7, 0xca, 0x51, 0x67, 0x45, 0xbf,
+  0xea, 0xfc, 0x49, 0x90, 0x4b, 0x49, 0x60, 0x89,  
+  0x72, 0x72, 0x6e, 0xe7, 0x71, 0x39, 0xbf, 0x11,
+  0xe5, 0x40, 0xe2, 0x7c, 0x54, 0x65, 0x1d, 0xee
+};
+
+uint8_t aes_cbc_test_case_2_iv[16] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+cipher_test_case_t aes_cbc_test_case_2 = {
+  32,                                    /* octets in key            */
+  aes_cbc_test_case_2_key,               /* key                      */
+  aes_cbc_test_case_2_iv,                /* initialization vector    */
+  16,                                    /* octets in plaintext      */
+  aes_cbc_test_case_2_plaintext,         /* plaintext                */
+  32,                                    /* octets in ciphertext     */
+  aes_cbc_test_case_2_ciphertext,        /* ciphertext               */
+  &aes_cbc_test_case_1                   /* pointer to next testcase */
+};
+
+
+/*
+ * this test case is taken directly from Appendix F.2 of NIST Special
+ * Publication SP 800-38A
+ */
+
+uint8_t aes_cbc_test_case_3_key[32] = {
+  0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe,
+  0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81,
+  0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7,
+  0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4
+};
+
+uint8_t aes_cbc_test_case_3_plaintext[64] =  {
+  0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 
+  0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+  0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 
+  0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+  0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+  0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+  0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 
+  0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+};
+
+uint8_t aes_cbc_test_case_3_ciphertext[80] = {
+  0xf5, 0x8c, 0x4c, 0x04, 0xd6, 0xe5, 0xf1, 0xba,
+  0x77, 0x9e, 0xab, 0xfb, 0x5f, 0x7b, 0xfb, 0xd6,
+  0x9c, 0xfc, 0x4e, 0x96, 0x7e, 0xdb, 0x80, 0x8d,
+  0x67, 0x9f, 0x77, 0x7b, 0xc6, 0x70, 0x2c, 0x7d,
+  0x39, 0xf2, 0x33, 0x69, 0xa9, 0xd9, 0xba, 0xcf,
+  0xa5, 0x30, 0xe2, 0x63, 0x04, 0x23, 0x14, 0x61,
+  0xb2, 0xeb, 0x05, 0xe2, 0xc3, 0x9b, 0xe9, 0xfc,
+  0xda, 0x6c, 0x19, 0x07, 0x8c, 0x6a, 0x9d, 0x1b,
+  0xfb, 0x98, 0x20, 0x2c, 0x45, 0xb2, 0xe4, 0xa0,
+  0x63, 0xc4, 0x68, 0xba, 0x84, 0x39, 0x16, 0x5a
+};
+
+uint8_t aes_cbc_test_case_3_iv[16] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+};
+
+cipher_test_case_t aes_cbc_test_case_3 = {
+  32,                                    /* octets in key            */
+  aes_cbc_test_case_3_key,               /* key                      */
+  aes_cbc_test_case_3_iv,                /* initialization vector    */
+  64,                                    /* octets in plaintext      */
+  aes_cbc_test_case_3_plaintext,         /* plaintext                */
+  80,                                    /* octets in ciphertext     */
+  aes_cbc_test_case_3_ciphertext,        /* ciphertext               */
+  &aes_cbc_test_case_2                    /* pointer to next testcase */
+};
+
+cipher_type_t aes_cbc = {
+  (cipher_alloc_func_t)          aes_cbc_alloc,
+  (cipher_dealloc_func_t)        aes_cbc_dealloc,  
+  (cipher_init_func_t)           aes_cbc_context_init,
+  (cipher_encrypt_func_t)        aes_cbc_nist_encrypt,
+  (cipher_decrypt_func_t)        aes_cbc_nist_decrypt,
+  (cipher_set_iv_func_t)         aes_cbc_set_iv,
+  (char *)                       aes_cbc_description,
+  (int)                          0,   /* instance count */
+  (cipher_test_case_t *)        &aes_cbc_test_case_3,
+  (debug_module_t *)            &mod_aes_cbc,
+  (cipher_type_id_t)             AES_CBC
+};
+
+
diff --git a/netwerk/srtp/src/crypto/cipher/aes_icm.c b/netwerk/srtp/src/crypto/cipher/aes_icm.c
new file mode 100644
index 000000000..8ec584587
--- /dev/null
+++ b/netwerk/srtp/src/crypto/cipher/aes_icm.c
@@ -0,0 +1,567 @@
+/*
+ * aes_icm.c
+ *
+ * AES Integer Counter Mode
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#define ALIGN_32 0
+
+#include "aes_icm.h"
+#include "alloc.h"
+
+
+debug_module_t mod_aes_icm = {
+  0,                 /* debugging is off by default */
+  "aes icm"          /* printable module name       */
+};
+
+/*
+ * integer counter mode works as follows:
+ *
+ * 16 bits
+ * <----->
+ * +------+------+------+------+------+------+------+------+ 
+ * |           nonce           |    pakcet index    |  ctr |---+
+ * +------+------+------+------+------+------+------+------+   |
+ *                                                             |
+ * +------+------+------+------+------+------+------+------+   v
+ * |                      salt                      |000000|->(+)
+ * +------+------+------+------+------+------+------+------+   |
+ *                                                             |
+ *                                                        +---------+
+ *							  | encrypt |
+ *							  +---------+
+ *							       | 
+ * +------+------+------+------+------+------+------+------+   |
+ * |                    keystream block                    |<--+ 
+ * +------+------+------+------+------+------+------+------+   
+ *
+ * All fields are big-endian
+ *
+ * ctr is the block counter, which increments from zero for
+ * each packet (16 bits wide)
+ * 
+ * packet index is distinct for each packet (48 bits wide)
+ *
+ * nonce can be distinct across many uses of the same key, or
+ * can be a fixed value per key, or can be per-packet randomness
+ * (64 bits)
+ *
+ */
+
+err_status_t
+aes_icm_alloc_ismacryp(cipher_t **c, int key_len, int forIsmacryp) {
+  extern cipher_type_t aes_icm;
+  uint8_t *pointer;
+  int tmp;
+
+  debug_print(mod_aes_icm, 
+            "allocating cipher with key length %d", key_len);
+
+  /*
+   * Ismacryp, for example, uses 16 byte key + 8 byte 
+   * salt  so this function is called with key_len = 24.
+   * The check for key_len = 30/38/46 does not apply. Our usage
+   * of aes functions with key_len = values other than 30
+   * has not broken anything. Don't know what would be the
+   * effect of skipping this check for srtp in general.
+   */
+  if (!(forIsmacryp && key_len > 16 && key_len < 30) &&
+      key_len != 30 && key_len != 38 && key_len != 46)
+    return err_status_bad_param;
+
+  /* allocate memory a cipher of type aes_icm */
+  tmp = (sizeof(aes_icm_ctx_t) + sizeof(cipher_t));
+  pointer = (uint8_t*)crypto_alloc(tmp);
+  if (pointer == NULL) 
+    return err_status_alloc_fail;
+
+  /* set pointers */
+  *c = (cipher_t *)pointer;
+  (*c)->type = &aes_icm;
+  (*c)->state = pointer + sizeof(cipher_t);
+
+  /* increment ref_count */
+  aes_icm.ref_count++;
+
+  /* set key size        */
+  (*c)->key_len = key_len;
+
+  return err_status_ok;  
+}
+
+err_status_t aes_icm_alloc(cipher_t **c, int key_len, int forIsmacryp) {
+  return aes_icm_alloc_ismacryp(c, key_len, 0);
+}
+
+err_status_t
+aes_icm_dealloc(cipher_t *c) {
+  extern cipher_type_t aes_icm;
+
+  /* zeroize entire state*/
+  octet_string_set_to_zero((uint8_t *)c, 
+			   sizeof(aes_icm_ctx_t) + sizeof(cipher_t));
+
+  /* free memory */
+  crypto_free(c);
+
+  /* decrement ref_count */
+  aes_icm.ref_count--;
+  
+  return err_status_ok;  
+}
+
+
+/*
+ * aes_icm_context_init(...) initializes the aes_icm_context
+ * using the value in key[].
+ *
+ * the key is the secret key 
+ *
+ * the salt is unpredictable (but not necessarily secret) data which
+ * randomizes the starting point in the keystream
+ */
+
+err_status_t
+aes_icm_context_init(aes_icm_ctx_t *c, const uint8_t *key, int key_len) {
+  err_status_t status;
+  int base_key_len, copy_len;
+
+  if (key_len > 16 && key_len < 30) /* Ismacryp */
+    base_key_len = 16;
+  else if (key_len == 30 || key_len == 38 || key_len == 46)
+    base_key_len = key_len - 14;
+  else
+    return err_status_bad_param;
+
+  /*
+   * set counter and initial values to 'offset' value, being careful not to
+   * go past the end of the key buffer
+   */
+  v128_set_to_zero(&c->counter);
+  v128_set_to_zero(&c->offset);
+
+  copy_len = key_len - base_key_len;
+  /* force last two octets of the offset to be left zero (for srtp compatibility) */
+  if (copy_len > 14)
+    copy_len = 14;
+
+  memcpy(&c->counter, key + base_key_len, copy_len);
+  memcpy(&c->offset, key + base_key_len, copy_len);
+
+  debug_print(mod_aes_icm, 
+	      "key:  %s", octet_string_hex_string(key, base_key_len)); 
+  debug_print(mod_aes_icm, 
+	      "offset: %s", v128_hex_string(&c->offset)); 
+
+  /* expand key */
+  status = aes_expand_encryption_key(key, base_key_len, &c->expanded_key);
+  if (status) {
+    v128_set_to_zero(&c->counter);
+    v128_set_to_zero(&c->offset);
+    return status;
+  }
+
+  /* indicate that the keystream_buffer is empty */
+  c->bytes_in_buffer = 0;
+
+  return err_status_ok;
+}
+
+/*
+ * aes_icm_set_octet(c, i) sets the counter of the context which it is
+ * passed so that the next octet of keystream that will be generated
+ * is the ith octet
+ */
+
+err_status_t
+aes_icm_set_octet(aes_icm_ctx_t *c,
+		  uint64_t octet_num) {
+
+#ifdef NO_64BIT_MATH
+  int tail_num       = low32(octet_num) & 0x0f;
+  /* 64-bit right-shift 4 */
+  uint64_t block_num = make64(high32(octet_num) >> 4,
+							  ((high32(octet_num) & 0x0f)<<(32-4)) |
+							   (low32(octet_num) >> 4));
+#else
+  int tail_num       = (int)(octet_num % 16);
+  uint64_t block_num = octet_num / 16;
+#endif
+  
+
+  /* set counter value */
+  /* FIX - There's no way this is correct */
+  c->counter.v64[0] = c->offset.v64[0];
+#ifdef NO_64BIT_MATH
+  c->counter.v64[0] = make64(high32(c->offset.v64[0]) ^ high32(block_num),
+							 low32(c->offset.v64[0])  ^ low32(block_num));
+#else
+  c->counter.v64[0] = c->offset.v64[0] ^ block_num;
+#endif
+
+  debug_print(mod_aes_icm, 
+	      "set_octet: %s", v128_hex_string(&c->counter)); 
+
+  /* fill keystream buffer, if needed */
+  if (tail_num) {
+    v128_copy(&c->keystream_buffer, &c->counter);
+    aes_encrypt(&c->keystream_buffer, &c->expanded_key);
+    c->bytes_in_buffer = sizeof(v128_t);
+
+    debug_print(mod_aes_icm, "counter:    %s", 
+	      v128_hex_string(&c->counter));
+    debug_print(mod_aes_icm, "ciphertext: %s", 
+	      v128_hex_string(&c->keystream_buffer));    
+    
+    /*  indicate number of bytes in keystream_buffer  */
+    c->bytes_in_buffer = sizeof(v128_t) - tail_num;
+  
+  } else {
+    
+    /* indicate that keystream_buffer is empty */
+    c->bytes_in_buffer = 0;
+  }
+
+  return err_status_ok;
+}
+
+/*
+ * aes_icm_set_iv(c, iv) sets the counter value to the exor of iv with
+ * the offset
+ */
+
+err_status_t
+aes_icm_set_iv(aes_icm_ctx_t *c, void *iv) {
+  v128_t *nonce = (v128_t *) iv;
+
+  debug_print(mod_aes_icm, 
+	      "setting iv: %s", v128_hex_string(nonce)); 
+ 
+  v128_xor(&c->counter, &c->offset, nonce);
+  
+  debug_print(mod_aes_icm, 
+	      "set_counter: %s", v128_hex_string(&c->counter)); 
+
+  /* indicate that the keystream_buffer is empty */
+  c->bytes_in_buffer = 0;
+
+  return err_status_ok;
+}
+
+
+
+/*
+ * aes_icm_advance(...) refills the keystream_buffer and
+ * advances the block index of the sicm_context forward by one
+ *
+ * this is an internal, hopefully inlined function
+ */
+  
+static inline void
+aes_icm_advance_ismacryp(aes_icm_ctx_t *c, uint8_t forIsmacryp) {
+  /* fill buffer with new keystream */
+  v128_copy(&c->keystream_buffer, &c->counter);
+  aes_encrypt(&c->keystream_buffer, &c->expanded_key);
+  c->bytes_in_buffer = sizeof(v128_t);
+
+  debug_print(mod_aes_icm, "counter:    %s", 
+	      v128_hex_string(&c->counter));
+  debug_print(mod_aes_icm, "ciphertext: %s", 
+	      v128_hex_string(&c->keystream_buffer));    
+  
+  /* clock counter forward */
+
+  if (forIsmacryp) {
+    uint32_t temp;    
+    //alex's clock counter forward
+    temp = ntohl(c->counter.v32[3]);
+    c->counter.v32[3] = htonl(++temp);
+  } else {
+    if (!++(c->counter.v8[15])) 
+      ++(c->counter.v8[14]);
+  }
+}
+
+static inline void aes_icm_advance(aes_icm_ctx_t *c) {
+  aes_icm_advance_ismacryp(c, 0);
+}
+
+
+/*e
+ * icm_encrypt deals with the following cases:
+ *
+ * bytes_to_encr < bytes_in_buffer
+ *  - add keystream into data
+ *
+ * bytes_to_encr > bytes_in_buffer
+ *  - add keystream into data until keystream_buffer is depleted
+ *  - loop over blocks, filling keystream_buffer and then
+ *    adding keystream into data
+ *  - fill buffer then add in remaining (< 16) bytes of keystream 
+ */
+
+err_status_t
+aes_icm_encrypt_ismacryp(aes_icm_ctx_t *c,
+              unsigned char *buf, unsigned int *enc_len, 
+              int forIsmacryp) {
+  unsigned int bytes_to_encr = *enc_len;
+  unsigned int i;
+  uint32_t *b;
+
+  /* check that there's enough segment left but not for ismacryp*/
+  if (!forIsmacryp && (bytes_to_encr + htons(c->counter.v16[7])) > 0xffff)
+    return err_status_terminus;
+
+ debug_print(mod_aes_icm, "block index: %d", 
+           htons(c->counter.v16[7]));
+  if (bytes_to_encr <= (unsigned int)c->bytes_in_buffer) {
+    
+    /* deal with odd case of small bytes_to_encr */
+    for (i = (sizeof(v128_t) - c->bytes_in_buffer);
+		 i < (sizeof(v128_t) - c->bytes_in_buffer + bytes_to_encr); i++) 
+	{
+      *buf++ ^= c->keystream_buffer.v8[i];
+	}
+
+    c->bytes_in_buffer -= bytes_to_encr;
+
+    /* return now to avoid the main loop */
+    return err_status_ok;
+
+  } else {
+    
+    /* encrypt bytes until the remaining data is 16-byte aligned */    
+    for (i=(sizeof(v128_t) - c->bytes_in_buffer); i < sizeof(v128_t); i++) 
+      *buf++ ^= c->keystream_buffer.v8[i];
+
+    bytes_to_encr -= c->bytes_in_buffer;
+    c->bytes_in_buffer = 0;
+
+  }
+  
+  /* now loop over entire 16-byte blocks of keystream */
+  for (i=0; i < (bytes_to_encr/sizeof(v128_t)); i++) {
+
+    /* fill buffer with new keystream */
+    aes_icm_advance_ismacryp(c, forIsmacryp);
+
+    /*
+     * add keystream into the data buffer (this would be a lot faster
+     * if we could assume 32-bit alignment!)
+     */
+
+#if ALIGN_32
+    b = (uint32_t *)buf;
+    *b++ ^= c->keystream_buffer.v32[0];
+    *b++ ^= c->keystream_buffer.v32[1];
+    *b++ ^= c->keystream_buffer.v32[2];
+    *b++ ^= c->keystream_buffer.v32[3];
+    buf = (uint8_t *)b;
+#else    
+    if ((((uintptr_t) buf) & 0x03) != 0) {
+      *buf++ ^= c->keystream_buffer.v8[0];
+      *buf++ ^= c->keystream_buffer.v8[1];
+      *buf++ ^= c->keystream_buffer.v8[2];
+      *buf++ ^= c->keystream_buffer.v8[3];
+      *buf++ ^= c->keystream_buffer.v8[4];
+      *buf++ ^= c->keystream_buffer.v8[5];
+      *buf++ ^= c->keystream_buffer.v8[6];
+      *buf++ ^= c->keystream_buffer.v8[7];
+      *buf++ ^= c->keystream_buffer.v8[8];
+      *buf++ ^= c->keystream_buffer.v8[9];
+      *buf++ ^= c->keystream_buffer.v8[10];
+      *buf++ ^= c->keystream_buffer.v8[11];
+      *buf++ ^= c->keystream_buffer.v8[12];
+      *buf++ ^= c->keystream_buffer.v8[13];
+      *buf++ ^= c->keystream_buffer.v8[14];
+      *buf++ ^= c->keystream_buffer.v8[15];
+    } else {
+      b = (uint32_t *)buf;
+      *b++ ^= c->keystream_buffer.v32[0];
+      *b++ ^= c->keystream_buffer.v32[1];
+      *b++ ^= c->keystream_buffer.v32[2];
+      *b++ ^= c->keystream_buffer.v32[3];
+      buf = (uint8_t *)b;
+    }
+#endif /* #if ALIGN_32 */
+
+  }
+  
+  /* if there is a tail end of the data, process it */
+  if ((bytes_to_encr & 0xf) != 0) {
+    
+    /* fill buffer with new keystream */
+    aes_icm_advance_ismacryp(c, forIsmacryp);
+    
+    for (i=0; i < (bytes_to_encr & 0xf); i++)
+      *buf++ ^= c->keystream_buffer.v8[i];
+    
+    /* reset the keystream buffer size to right value */
+    c->bytes_in_buffer = sizeof(v128_t) - i;  
+  } else {
+
+    /* no tail, so just reset the keystream buffer size to zero */
+    c->bytes_in_buffer = 0;
+
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+aes_icm_encrypt(aes_icm_ctx_t *c, unsigned char *buf, unsigned int *enc_len) {
+  return aes_icm_encrypt_ismacryp(c, buf, enc_len, 0);
+}
+
+err_status_t
+aes_icm_output(aes_icm_ctx_t *c, uint8_t *buffer, int num_octets_to_output) {
+  unsigned int len = num_octets_to_output;
+  
+  /* zeroize the buffer */
+  octet_string_set_to_zero(buffer, num_octets_to_output);
+  
+  /* exor keystream into buffer */
+  return aes_icm_encrypt(c, buffer, &len);
+}
+
+
+char 
+aes_icm_description[] = "aes integer counter mode";
+
+uint8_t aes_icm_test_case_0_key[30] = {
+  0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+  0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c,
+  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd
+};
+
+uint8_t aes_icm_test_case_0_nonce[16] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+uint8_t aes_icm_test_case_0_plaintext[32] =  {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+};
+
+uint8_t aes_icm_test_case_0_ciphertext[32] = {
+  0xe0, 0x3e, 0xad, 0x09, 0x35, 0xc9, 0x5e, 0x80,
+  0xe1, 0x66, 0xb1, 0x6d, 0xd9, 0x2b, 0x4e, 0xb4,
+  0xd2, 0x35, 0x13, 0x16, 0x2b, 0x02, 0xd0, 0xf7,
+  0x2a, 0x43, 0xa2, 0xfe, 0x4a, 0x5f, 0x97, 0xab
+};
+
+cipher_test_case_t aes_icm_test_case_0 = {
+  30,                                    /* octets in key            */
+  aes_icm_test_case_0_key,               /* key                      */
+  aes_icm_test_case_0_nonce,             /* packet index             */
+  32,                                    /* octets in plaintext      */
+  aes_icm_test_case_0_plaintext,         /* plaintext                */
+  32,                                    /* octets in ciphertext     */
+  aes_icm_test_case_0_ciphertext,        /* ciphertext               */
+  NULL                                   /* pointer to next testcase */
+};
+
+uint8_t aes_icm_test_case_1_key[46] = {
+  0x57, 0xf8, 0x2f, 0xe3, 0x61, 0x3f, 0xd1, 0x70,
+  0xa8, 0x5e, 0xc9, 0x3c, 0x40, 0xb1, 0xf0, 0x92,
+  0x2e, 0xc4, 0xcb, 0x0d, 0xc0, 0x25, 0xb5, 0x82,
+  0x72, 0x14, 0x7c, 0xc4, 0x38, 0x94, 0x4a, 0x98,
+  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd
+};
+
+uint8_t aes_icm_test_case_1_nonce[16] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+uint8_t aes_icm_test_case_1_plaintext[32] =  {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+};
+
+uint8_t aes_icm_test_case_1_ciphertext[32] = {
+  0x92, 0xbd, 0xd2, 0x8a, 0x93, 0xc3, 0xf5, 0x25,
+  0x11, 0xc6, 0x77, 0xd0, 0x8b, 0x55, 0x15, 0xa4,
+  0x9d, 0xa7, 0x1b, 0x23, 0x78, 0xa8, 0x54, 0xf6,
+  0x70, 0x50, 0x75, 0x6d, 0xed, 0x16, 0x5b, 0xac
+};
+
+cipher_test_case_t aes_icm_test_case_1 = {
+  46,                                    /* octets in key            */
+  aes_icm_test_case_1_key,               /* key                      */
+  aes_icm_test_case_1_nonce,             /* packet index             */
+  32,                                    /* octets in plaintext      */
+  aes_icm_test_case_1_plaintext,         /* plaintext                */
+  32,                                    /* octets in ciphertext     */
+  aes_icm_test_case_1_ciphertext,        /* ciphertext               */
+  &aes_icm_test_case_0                   /* pointer to next testcase */
+};
+
+
+
+/*
+ * note: the encrypt function is identical to the decrypt function
+ */
+
+cipher_type_t aes_icm = {
+  (cipher_alloc_func_t)          aes_icm_alloc,
+  (cipher_dealloc_func_t)        aes_icm_dealloc,  
+  (cipher_init_func_t)           aes_icm_context_init,
+  (cipher_encrypt_func_t)        aes_icm_encrypt,
+  (cipher_decrypt_func_t)        aes_icm_encrypt,
+  (cipher_set_iv_func_t)         aes_icm_set_iv,
+  (char *)                       aes_icm_description,
+  (int)                          0,   /* instance count */
+  (cipher_test_case_t *)        &aes_icm_test_case_1,
+  (debug_module_t *)            &mod_aes_icm,
+  (cipher_type_id_t)             AES_ICM
+};
+
diff --git a/netwerk/srtp/src/crypto/cipher/cipher.c b/netwerk/srtp/src/crypto/cipher/cipher.c
new file mode 100644
index 000000000..f668fc166
--- /dev/null
+++ b/netwerk/srtp/src/crypto/cipher/cipher.c
@@ -0,0 +1,421 @@
+/*
+ * cipher.c
+ *
+ * cipher meta-functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ * 
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "cipher.h"
+#include "rand_source.h"        /* used in invertibiltiy tests        */
+#include "alloc.h"              /* for crypto_alloc(), crypto_free()  */
+
+debug_module_t mod_cipher = {
+  0,                 /* debugging is off by default */
+  "cipher"           /* printable module name       */
+};
+
+err_status_t
+cipher_output(cipher_t *c, uint8_t *buffer, int num_octets_to_output) {
+  
+  /* zeroize the buffer */
+  octet_string_set_to_zero(buffer, num_octets_to_output);
+  
+  /* exor keystream into buffer */
+  return cipher_encrypt(c, buffer, (unsigned int *) &num_octets_to_output);
+}
+
+/* some bookkeeping functions */
+
+int
+cipher_get_key_length(const cipher_t *c) {
+  return c->key_len;
+}
+
+/* 
+ * cipher_type_test(ct, test_data) tests a cipher of type ct against
+ * test cases provided in a list test_data of values of key, salt, iv,
+ * plaintext, and ciphertext that is known to be good
+ */
+
+#define SELF_TEST_BUF_OCTETS 128
+#define NUM_RAND_TESTS       128
+#define MAX_KEY_LEN          64
+
+err_status_t
+cipher_type_test(const cipher_type_t *ct, const cipher_test_case_t *test_data) {
+  const cipher_test_case_t *test_case = test_data;
+  cipher_t *c;
+  err_status_t status;
+  uint8_t buffer[SELF_TEST_BUF_OCTETS];
+  uint8_t buffer2[SELF_TEST_BUF_OCTETS];
+  unsigned int len;
+  int i, j, case_num = 0;
+
+  debug_print(mod_cipher, "running self-test for cipher %s", 
+	      ct->description);
+  
+  /*
+   * check to make sure that we have at least one test case, and
+   * return an error if we don't - we need to be paranoid here
+   */
+  if (test_case == NULL)
+    return err_status_cant_check;
+
+  /*
+   * loop over all test cases, perform known-answer tests of both the
+   * encryption and decryption functions
+   */  
+  while (test_case != NULL) {
+
+    /* allocate cipher */
+    status = cipher_type_alloc(ct, &c, test_case->key_length_octets);
+    if (status)
+      return status;
+    
+    /*
+     * test the encrypt function 
+     */
+    debug_print(mod_cipher, "testing encryption", NULL);    
+    
+    /* initialize cipher */
+    status = cipher_init(c, test_case->key, direction_encrypt);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }
+    
+    /* copy plaintext into test buffer */
+    if (test_case->ciphertext_length_octets > SELF_TEST_BUF_OCTETS) {
+      cipher_dealloc(c);    
+      return err_status_bad_param;
+    }
+    for (i=0; i < test_case->plaintext_length_octets; i++)
+      buffer[i] = test_case->plaintext[i];
+
+    debug_print(mod_cipher, "plaintext:    %s",
+	     octet_string_hex_string(buffer,
+				     test_case->plaintext_length_octets));
+
+    /* set the initialization vector */
+    status = cipher_set_iv(c, test_case->idx);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    } 
+    
+    /* encrypt */
+    len = test_case->plaintext_length_octets;
+    status = cipher_encrypt(c, buffer, &len);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }
+    
+    debug_print(mod_cipher, "ciphertext:   %s",
+	     octet_string_hex_string(buffer,
+				     test_case->ciphertext_length_octets));
+
+    /* compare the resulting ciphertext with that in the test case */
+    if (len != (unsigned int)test_case->ciphertext_length_octets)
+      return err_status_algo_fail;
+    status = err_status_ok;
+    for (i=0; i < test_case->ciphertext_length_octets; i++)
+      if (buffer[i] != test_case->ciphertext[i]) {
+	status = err_status_algo_fail;
+	debug_print(mod_cipher, "test case %d failed", case_num);
+	debug_print(mod_cipher, "(failure at byte %d)", i);
+	break;
+      }
+    if (status) {
+
+      debug_print(mod_cipher, "c computed: %s",
+	     octet_string_hex_string(buffer,
+		  2*test_case->plaintext_length_octets));
+      debug_print(mod_cipher, "c expected: %s",
+		  octet_string_hex_string(test_case->ciphertext,
+			  2*test_case->plaintext_length_octets));
+
+      cipher_dealloc(c);
+      return err_status_algo_fail;
+    }
+
+    /*
+     * test the decrypt function
+     */
+    debug_print(mod_cipher, "testing decryption", NULL);    
+
+    /* re-initialize cipher for decryption */
+    status = cipher_init(c, test_case->key, direction_decrypt);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }
+
+    /* copy ciphertext into test buffer */
+    if (test_case->ciphertext_length_octets > SELF_TEST_BUF_OCTETS) {
+      cipher_dealloc(c);    
+      return err_status_bad_param;
+    }
+    for (i=0; i < test_case->ciphertext_length_octets; i++)
+      buffer[i] = test_case->ciphertext[i];
+
+    debug_print(mod_cipher, "ciphertext:    %s",
+		octet_string_hex_string(buffer,
+					test_case->plaintext_length_octets));
+
+    /* set the initialization vector */
+    status = cipher_set_iv(c, test_case->idx);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    } 
+    
+    /* decrypt */
+    len = test_case->ciphertext_length_octets;
+    status = cipher_decrypt(c, buffer, &len);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }
+    
+    debug_print(mod_cipher, "plaintext:   %s",
+	     octet_string_hex_string(buffer,
+				     test_case->plaintext_length_octets));
+
+    /* compare the resulting plaintext with that in the test case */
+    if (len != (unsigned int)test_case->plaintext_length_octets)
+      return err_status_algo_fail;
+    status = err_status_ok;
+    for (i=0; i < test_case->plaintext_length_octets; i++)
+      if (buffer[i] != test_case->plaintext[i]) {
+	status = err_status_algo_fail;
+	debug_print(mod_cipher, "test case %d failed", case_num);
+	debug_print(mod_cipher, "(failure at byte %d)", i);
+      }
+    if (status) {
+
+      debug_print(mod_cipher, "p computed: %s",
+	     octet_string_hex_string(buffer,
+		  2*test_case->plaintext_length_octets));
+      debug_print(mod_cipher, "p expected: %s",
+		  octet_string_hex_string(test_case->plaintext,
+			  2*test_case->plaintext_length_octets));
+
+      cipher_dealloc(c);
+      return err_status_algo_fail;
+    }
+
+    /* deallocate the cipher */
+    status = cipher_dealloc(c);
+    if (status)
+      return status;
+    
+    /* 
+     * the cipher passed the test case, so move on to the next test
+     * case in the list; if NULL, we'l proceed to the next test
+     */   
+    test_case = test_case->next_test_case;
+    ++case_num;
+  }
+  
+  /* now run some random invertibility tests */
+
+  /* allocate cipher, using paramaters from the first test case */
+  test_case = test_data;
+  status = cipher_type_alloc(ct, &c, test_case->key_length_octets);
+  if (status)
+      return status;
+  
+  rand_source_init();
+  
+  for (j=0; j < NUM_RAND_TESTS; j++) {
+    unsigned length;
+    int plaintext_len;
+    uint8_t key[MAX_KEY_LEN];
+    uint8_t  iv[MAX_KEY_LEN];
+
+    /* choose a length at random (leaving room for IV and padding) */
+    length = rand() % (SELF_TEST_BUF_OCTETS - 64);
+    debug_print(mod_cipher, "random plaintext length %d\n", length);
+    status = rand_source_get_octet_string(buffer, length);
+    if (status) return status;
+
+    debug_print(mod_cipher, "plaintext:    %s",
+		octet_string_hex_string(buffer, length));
+
+    /* copy plaintext into second buffer */
+    for (i=0; (unsigned int)i < length; i++)
+      buffer2[i] = buffer[i];
+    
+    /* choose a key at random */
+    if (test_case->key_length_octets > MAX_KEY_LEN)
+      return err_status_cant_check;
+    status = rand_source_get_octet_string(key, test_case->key_length_octets);
+    if (status) return status;
+
+   /* chose a random initialization vector */
+    status = rand_source_get_octet_string(iv, MAX_KEY_LEN);
+    if (status) return status;
+        
+    /* initialize cipher */
+    status = cipher_init(c, key, direction_encrypt);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }
+
+    /* set initialization vector */
+    status = cipher_set_iv(c, test_case->idx);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    } 
+
+    /* encrypt buffer with cipher */
+    plaintext_len = length;
+    status = cipher_encrypt(c, buffer, &length);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }
+    debug_print(mod_cipher, "ciphertext:   %s",
+		octet_string_hex_string(buffer, length));
+
+    /* 
+     * re-initialize cipher for decryption, re-set the iv, then
+     * decrypt the ciphertext
+     */
+    status = cipher_init(c, key, direction_decrypt);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }
+    status = cipher_set_iv(c, test_case->idx);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    } 
+    status = cipher_decrypt(c, buffer, &length);
+    if (status) {
+      cipher_dealloc(c);
+      return status;
+    }    
+
+    debug_print(mod_cipher, "plaintext[2]: %s",
+		octet_string_hex_string(buffer, length));    
+
+    /* compare the resulting plaintext with the original one */
+    if (length != (unsigned)plaintext_len)
+      return err_status_algo_fail;
+    status = err_status_ok;
+    for (i=0; i < plaintext_len; i++)
+      if (buffer[i] != buffer2[i]) {
+	status = err_status_algo_fail;
+	debug_print(mod_cipher, "random test case %d failed", case_num);
+	debug_print(mod_cipher, "(failure at byte %d)", i);
+      }
+    if (status) {
+      cipher_dealloc(c);
+      return err_status_algo_fail;
+    }
+        
+  }
+
+  status = cipher_dealloc(c);
+  if (status)
+    return status;
+
+  return err_status_ok;
+}
+
+
+/* 
+ * cipher_type_self_test(ct) performs cipher_type_test on ct's internal
+ * list of test data.
+ */
+
+err_status_t
+cipher_type_self_test(const cipher_type_t *ct) {
+  return cipher_type_test(ct, ct->test_data);
+}
+
+/*
+ * cipher_bits_per_second(c, l, t) computes (an estimate of) the
+ * number of bits that a cipher implementation can encrypt in a second
+ * 
+ * c is a cipher (which MUST be allocated and initialized already), l
+ * is the length in octets of the test data to be encrypted, and t is
+ * the number of trials
+ *
+ * if an error is encountered, the value 0 is returned
+ */
+
+uint64_t
+cipher_bits_per_second(cipher_t *c, int octets_in_buffer, int num_trials) {
+  int i;
+  v128_t nonce;
+  clock_t timer;
+  unsigned char *enc_buf;
+  unsigned int len = octets_in_buffer;
+
+  enc_buf = (unsigned char*) crypto_alloc(octets_in_buffer);
+  if (enc_buf == NULL)
+    return 0;  /* indicate bad parameters by returning null */
+  
+  /* time repeated trials */
+  v128_set_to_zero(&nonce);
+  timer = clock();
+  for(i=0; i < num_trials; i++, nonce.v32[3] = i) {
+    cipher_set_iv(c, &nonce);
+    cipher_encrypt(c, enc_buf, &len);
+  }
+  timer = clock() - timer;
+
+  crypto_free(enc_buf);
+
+  if (timer == 0) {
+    /* Too fast! */
+    return 0;
+  }
+  
+  return (uint64_t)CLOCKS_PER_SEC * num_trials * 8 * octets_in_buffer / timer;
+}
diff --git a/netwerk/srtp/src/crypto/cipher/null_cipher.c b/netwerk/srtp/src/crypto/cipher/null_cipher.c
new file mode 100644
index 000000000..724f4df3a
--- /dev/null
+++ b/netwerk/srtp/src/crypto/cipher/null_cipher.c
@@ -0,0 +1,153 @@
+/*
+ * null_cipher.c
+ *
+ * A null cipher implementation.  This cipher leaves the plaintext
+ * unchanged.
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "datatypes.h"
+#include "null_cipher.h"
+#include "alloc.h"
+
+/* the null_cipher uses the cipher debug module  */
+
+extern debug_module_t mod_cipher;
+
+err_status_t
+null_cipher_alloc(cipher_t **c, int key_len) {
+  extern cipher_type_t null_cipher;
+  uint8_t *pointer;
+  
+  debug_print(mod_cipher, 
+	      "allocating cipher with key length %d", key_len);
+
+  /* allocate memory a cipher of type null_cipher */
+  pointer = (uint8_t*)crypto_alloc(sizeof(null_cipher_ctx_t) + sizeof(cipher_t));
+  if (pointer == NULL)
+    return err_status_alloc_fail;
+
+  /* set pointers */
+  *c = (cipher_t *)pointer;
+  (*c)->type = &null_cipher;
+  (*c)->state = pointer + sizeof(cipher_t);
+
+  /* set key size */
+  (*c)->key_len = key_len;
+
+  /* increment ref_count */
+  null_cipher.ref_count++;
+  
+  return err_status_ok;
+  
+}
+
+err_status_t
+null_cipher_dealloc(cipher_t *c) {
+  extern cipher_type_t null_cipher;
+
+  /* zeroize entire state*/
+  octet_string_set_to_zero((uint8_t *)c, 
+			   sizeof(null_cipher_ctx_t) + sizeof(cipher_t));
+
+  /* free memory of type null_cipher */
+  crypto_free(c);
+
+  /* decrement reference count */
+  null_cipher.ref_count--;
+  
+  return err_status_ok;
+  
+}
+
+err_status_t
+null_cipher_init(null_cipher_ctx_t *ctx, const uint8_t *key, int key_len) {
+
+  debug_print(mod_cipher, "initializing null cipher", NULL);
+
+  return err_status_ok;
+}
+
+err_status_t
+null_cipher_set_iv(null_cipher_ctx_t *c, void *iv) { 
+  return err_status_ok;
+}
+
+err_status_t
+null_cipher_encrypt(null_cipher_ctx_t *c,
+		    unsigned char *buf, unsigned int *bytes_to_encr) {
+  return err_status_ok;
+}
+
+char 
+null_cipher_description[] = "null cipher";
+
+cipher_test_case_t  
+null_cipher_test_0 = {
+  0,                 /* octets in key            */
+  NULL,              /* key                      */
+  0,                 /* packet index             */
+  0,                 /* octets in plaintext      */
+  NULL,              /* plaintext                */
+  0,                 /* octets in plaintext      */
+  NULL,              /* ciphertext               */
+  NULL               /* pointer to next testcase */
+};
+
+
+/*
+ * note: the decrypt function is idential to the encrypt function
+ */
+
+cipher_type_t null_cipher = {
+  (cipher_alloc_func_t)         null_cipher_alloc,
+  (cipher_dealloc_func_t)       null_cipher_dealloc,
+  (cipher_init_func_t)          null_cipher_init,
+  (cipher_encrypt_func_t)       null_cipher_encrypt,
+  (cipher_decrypt_func_t)       null_cipher_encrypt,
+  (cipher_set_iv_func_t)        null_cipher_set_iv,
+  (char *)                      null_cipher_description,
+  (int)                         0,
+  (cipher_test_case_t *)       &null_cipher_test_0,
+  (debug_module_t *)            NULL,
+  (cipher_type_id_t)            NULL_CIPHER
+};
+
diff --git a/netwerk/srtp/src/crypto/hash/auth.c b/netwerk/srtp/src/crypto/hash/auth.c
new file mode 100644
index 000000000..aaf0269c7
--- /dev/null
+++ b/netwerk/srtp/src/crypto/hash/auth.c
@@ -0,0 +1,183 @@
+/*
+ * auth.c
+ *
+ * some bookkeeping functions for authentication functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "auth.h"
+
+/* the debug module for authentiation */
+
+debug_module_t mod_auth = {
+  0,                  /* debugging is off by default */
+  "auth func"         /* printable name for module   */
+};
+
+
+int
+auth_get_key_length(const auth_t *a) {
+  return a->key_len;
+}
+
+int
+auth_get_tag_length(const auth_t *a) {
+  return a->out_len;
+}
+
+int
+auth_get_prefix_length(const auth_t *a) {
+  return a->prefix_len;
+}
+
+int
+auth_type_get_ref_count(const auth_type_t *at) {
+  return at->ref_count;
+}
+
+/*
+ * auth_type_test() tests an auth function of type ct against
+ * test cases provided in a list test_data of values of key, data, and tag
+ * that is known to be good
+ */
+
+/* should be big enough for most occasions */
+#define SELF_TEST_TAG_BUF_OCTETS 32
+
+err_status_t
+auth_type_test(const auth_type_t *at, const auth_test_case_t *test_data) {
+  const auth_test_case_t *test_case = test_data;
+  auth_t *a;
+  err_status_t status;
+  uint8_t tag[SELF_TEST_TAG_BUF_OCTETS];
+  int i, case_num = 0;
+
+  debug_print(mod_auth, "running self-test for auth function %s", 
+	      at->description);
+  
+  /*
+   * check to make sure that we have at least one test case, and
+   * return an error if we don't - we need to be paranoid here
+   */
+  if (test_case == NULL)
+    return err_status_cant_check;
+
+  /* loop over all test cases */  
+  while (test_case != NULL) {
+
+    /* check test case parameters */
+    if (test_case->tag_length_octets > SELF_TEST_TAG_BUF_OCTETS)
+      return err_status_bad_param;
+    
+    /* allocate auth */
+    status = auth_type_alloc(at, &a, test_case->key_length_octets,
+			     test_case->tag_length_octets);
+    if (status)
+      return status;
+    
+    /* initialize auth */
+    status = auth_init(a, test_case->key);
+    if (status) {
+      auth_dealloc(a);
+      return status;
+    }
+
+    /* zeroize tag then compute */
+    octet_string_set_to_zero(tag, test_case->tag_length_octets);
+    status = auth_compute(a, test_case->data,
+			  test_case->data_length_octets, tag);
+    if (status) {
+      auth_dealloc(a);
+      return status;
+    }
+    
+    debug_print(mod_auth, "key: %s",
+		octet_string_hex_string(test_case->key,
+					test_case->key_length_octets));
+    debug_print(mod_auth, "data: %s",
+		octet_string_hex_string(test_case->data,
+				   test_case->data_length_octets));
+    debug_print(mod_auth, "tag computed: %s",
+	   octet_string_hex_string(tag, test_case->tag_length_octets));
+    debug_print(mod_auth, "tag expected: %s",
+	   octet_string_hex_string(test_case->tag,
+				   test_case->tag_length_octets));
+
+    /* check the result */
+    status = err_status_ok;
+    for (i=0; i < test_case->tag_length_octets; i++)
+      if (tag[i] != test_case->tag[i]) {
+	status = err_status_algo_fail;
+	debug_print(mod_auth, "test case %d failed", case_num);
+	debug_print(mod_auth, "  (mismatch at octet %d)", i);
+      }
+    if (status) {
+      auth_dealloc(a);
+      return err_status_algo_fail;
+    }
+    
+    /* deallocate the auth function */
+    status = auth_dealloc(a);
+    if (status)
+      return status;
+    
+    /* 
+     * the auth function passed the test case, so move on to the next test
+     * case in the list; if NULL, we'll quit and return an OK
+     */   
+    test_case = test_case->next_test_case;
+    ++case_num;
+  }
+  
+  return err_status_ok;
+}
+
+
+/* 
+ * auth_type_self_test(at) performs auth_type_test on at's internal
+ * list of test data.
+ */
+
+err_status_t
+auth_type_self_test(const auth_type_t *at) {
+  return auth_type_test(at, at->test_data);
+}
+
diff --git a/netwerk/srtp/src/crypto/hash/hmac.c b/netwerk/srtp/src/crypto/hash/hmac.c
new file mode 100644
index 000000000..4f389fe18
--- /dev/null
+++ b/netwerk/srtp/src/crypto/hash/hmac.c
@@ -0,0 +1,268 @@
+/*
+ * hmac.c
+ *
+ * implementation of hmac auth_type_t
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "hmac.h" 
+#include "alloc.h"
+
+/* the debug module for authentiation */
+
+debug_module_t mod_hmac = {
+  0,                  /* debugging is off by default */
+  "hmac sha-1"        /* printable name for module   */
+};
+
+
+err_status_t
+hmac_alloc(auth_t **a, int key_len, int out_len) {
+  extern auth_type_t hmac;
+  uint8_t *pointer;
+
+  debug_print(mod_hmac, "allocating auth func with key length %d", key_len);
+  debug_print(mod_hmac, "                          tag length %d", out_len);
+
+  /*
+   * check key length - note that we don't support keys larger
+   * than 20 bytes yet
+   */
+  if (key_len > 20)
+    return err_status_bad_param;
+
+  /* check output length - should be less than 20 bytes */
+  if (out_len > 20)
+    return err_status_bad_param;
+
+  /* allocate memory for auth and hmac_ctx_t structures */
+  pointer = (uint8_t*)crypto_alloc(sizeof(hmac_ctx_t) + sizeof(auth_t));
+  if (pointer == NULL)
+    return err_status_alloc_fail;
+
+  /* set pointers */
+  *a = (auth_t *)pointer;
+  (*a)->type = &hmac;
+  (*a)->state = pointer + sizeof(auth_t);  
+  (*a)->out_len = out_len;
+  (*a)->key_len = key_len;
+  (*a)->prefix_len = 0;
+
+  /* increment global count of all hmac uses */
+  hmac.ref_count++;
+
+  return err_status_ok;
+}
+
+err_status_t
+hmac_dealloc(auth_t *a) {
+  extern auth_type_t hmac;
+  
+  /* zeroize entire state*/
+  octet_string_set_to_zero((uint8_t *)a, 
+			   sizeof(hmac_ctx_t) + sizeof(auth_t));
+
+  /* free memory */
+  crypto_free(a);
+  
+  /* decrement global count of all hmac uses */
+  hmac.ref_count--;
+
+  return err_status_ok;
+}
+
+err_status_t
+hmac_init(hmac_ctx_t *state, const uint8_t *key, int key_len) {
+  int i;
+  uint8_t ipad[64]; 
+  
+    /*
+   * check key length - note that we don't support keys larger
+   * than 20 bytes yet
+   */
+  if (key_len > 20)              
+    return err_status_bad_param;
+  
+  /*
+   * set values of ipad and opad by exoring the key into the
+   * appropriate constant values
+   */
+  for (i=0; i < key_len; i++) {    
+    ipad[i] = key[i] ^ 0x36;
+    state->opad[i] = key[i] ^ 0x5c;
+  }  
+  /* set the rest of ipad, opad to constant values */
+  for (   ; i < 64; i++) {    
+    ipad[i] = 0x36;
+    ((uint8_t *)state->opad)[i] = 0x5c;
+  }  
+
+  debug_print(mod_hmac, "ipad: %s", octet_string_hex_string(ipad, 64));
+  
+  /* initialize sha1 context */
+  sha1_init(&state->init_ctx);
+
+  /* hash ipad ^ key */
+  sha1_update(&state->init_ctx, ipad, 64);
+  memcpy(&state->ctx, &state->init_ctx, sizeof(sha1_ctx_t)); 
+
+  return err_status_ok;
+}
+
+err_status_t
+hmac_start(hmac_ctx_t *state) {
+    
+  memcpy(&state->ctx, &state->init_ctx, sizeof(sha1_ctx_t));
+
+  return err_status_ok;
+}
+
+err_status_t
+hmac_update(hmac_ctx_t *state, const uint8_t *message, int msg_octets) {
+
+  debug_print(mod_hmac, "input: %s", 
+	      octet_string_hex_string(message, msg_octets));
+  
+  /* hash message into sha1 context */
+  sha1_update(&state->ctx, message, msg_octets);
+
+  return err_status_ok;
+}
+
+err_status_t
+hmac_compute(hmac_ctx_t *state, const void *message,
+	     int msg_octets, int tag_len, uint8_t *result) {
+  uint32_t hash_value[5];
+  uint32_t H[5];
+  int i;
+
+  /* check tag length, return error if we can't provide the value expected */
+  if (tag_len > 20)
+    return err_status_bad_param;
+  
+  /* hash message, copy output into H */
+  hmac_update(state, (const uint8_t*)message, msg_octets);
+  sha1_final(&state->ctx, H);
+
+  /*
+   * note that we don't need to debug_print() the input, since the
+   * function hmac_update() already did that for us
+   */
+  debug_print(mod_hmac, "intermediate state: %s", 
+	      octet_string_hex_string((uint8_t *)H, 20));
+
+  /* re-initialize hash context */
+  sha1_init(&state->ctx);
+  
+  /* hash opad ^ key  */
+  sha1_update(&state->ctx, (uint8_t *)state->opad, 64);
+
+  /* hash the result of the inner hash */
+  sha1_update(&state->ctx, (uint8_t *)H, 20);
+  
+  /* the result is returned in the array hash_value[] */
+  sha1_final(&state->ctx, hash_value);
+
+  /* copy hash_value to *result */
+  for (i=0; i < tag_len; i++)    
+    result[i] = ((uint8_t *)hash_value)[i];
+
+  debug_print(mod_hmac, "output: %s", 
+	      octet_string_hex_string((uint8_t *)hash_value, tag_len));
+
+  return err_status_ok;
+}
+
+
+/* begin test case 0 */
+
+uint8_t
+hmac_test_case_0_key[20] = {
+  0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 
+  0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 
+  0x0b, 0x0b, 0x0b, 0x0b
+};
+
+uint8_t 
+hmac_test_case_0_data[8] = {
+  0x48, 0x69, 0x20, 0x54, 0x68, 0x65, 0x72, 0x65   /* "Hi There" */
+};
+
+uint8_t
+hmac_test_case_0_tag[20] = {
+  0xb6, 0x17, 0x31, 0x86, 0x55, 0x05, 0x72, 0x64, 
+  0xe2, 0x8b, 0xc0, 0xb6, 0xfb, 0x37, 0x8c, 0x8e, 
+  0xf1, 0x46, 0xbe, 0x00
+};
+
+auth_test_case_t
+hmac_test_case_0 = {
+  20,                        /* octets in key            */
+  hmac_test_case_0_key,      /* key                      */
+  8,                         /* octets in data           */ 
+  hmac_test_case_0_data,     /* data                     */
+  20,                        /* octets in tag            */
+  hmac_test_case_0_tag,      /* tag                      */
+  NULL                       /* pointer to next testcase */
+};
+
+/* end test case 0 */
+
+char hmac_description[] = "hmac sha-1 authentication function";
+
+/*
+ * auth_type_t hmac is the hmac metaobject
+ */
+
+auth_type_t
+hmac  = {
+  (auth_alloc_func)      hmac_alloc,
+  (auth_dealloc_func)    hmac_dealloc,
+  (auth_init_func)       hmac_init,
+  (auth_compute_func)    hmac_compute,
+  (auth_update_func)     hmac_update,
+  (auth_start_func)      hmac_start,
+  (char *)               hmac_description,
+  (int)                  0,  /* instance count */
+  (auth_test_case_t *)  &hmac_test_case_0,
+  (debug_module_t *)    &mod_hmac,
+  (auth_type_id_t)       HMAC_SHA1
+};
+
diff --git a/netwerk/srtp/src/crypto/hash/null_auth.c b/netwerk/srtp/src/crypto/hash/null_auth.c
new file mode 100644
index 000000000..103444bc5
--- /dev/null
+++ b/netwerk/srtp/src/crypto/hash/null_auth.c
@@ -0,0 +1,162 @@
+/*
+ * null_auth.c
+ *
+ * implements the do-nothing auth algorithm
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ *
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "null_auth.h" 
+#include "alloc.h"
+
+/* null_auth uses the auth debug module */
+
+extern debug_module_t mod_auth;
+
+err_status_t
+null_auth_alloc(auth_t **a, int key_len, int out_len) {
+  extern auth_type_t null_auth;
+  uint8_t *pointer;
+
+  debug_print(mod_auth, "allocating auth func with key length %d", key_len);
+  debug_print(mod_auth, "                          tag length %d", out_len);
+
+  /* allocate memory for auth and null_auth_ctx_t structures */
+  pointer = (uint8_t*)crypto_alloc(sizeof(null_auth_ctx_t) + sizeof(auth_t));
+  if (pointer == NULL)
+    return err_status_alloc_fail;
+
+  /* set pointers */
+  *a = (auth_t *)pointer;
+  (*a)->type = &null_auth;
+  (*a)->state = pointer + sizeof (auth_t);  
+  (*a)->out_len = out_len;
+  (*a)->prefix_len = out_len;
+  (*a)->key_len = key_len;
+
+  /* increment global count of all null_auth uses */
+  null_auth.ref_count++;
+
+  return err_status_ok;
+}
+
+err_status_t
+null_auth_dealloc(auth_t *a) {
+  extern auth_type_t null_auth;
+  
+  /* zeroize entire state*/
+  octet_string_set_to_zero((uint8_t *)a, 
+			   sizeof(null_auth_ctx_t) + sizeof(auth_t));
+
+  /* free memory */
+  crypto_free(a);
+  
+  /* decrement global count of all null_auth uses */
+  null_auth.ref_count--;
+
+  return err_status_ok;
+}
+
+err_status_t
+null_auth_init(null_auth_ctx_t *state, const uint8_t *key, int key_len) {
+
+  /* accept any length of key, and do nothing */
+  
+  return err_status_ok;
+}
+
+err_status_t
+null_auth_compute(null_auth_ctx_t *state, uint8_t *message,
+		   int msg_octets, int tag_len, uint8_t *result) {
+
+  return err_status_ok;
+}
+
+err_status_t
+null_auth_update(null_auth_ctx_t *state, uint8_t *message,
+		   int msg_octets) {
+
+  return err_status_ok;
+}
+
+err_status_t
+null_auth_start(null_auth_ctx_t *state) {
+  return err_status_ok;
+}
+
+/*
+ * auth_type_t - defines description, test case, and null_auth
+ * metaobject
+ */
+
+/* begin test case 0 */
+
+auth_test_case_t
+null_auth_test_case_0 = {
+  0,                                       /* octets in key            */
+  NULL,                                    /* key                      */
+  0,                                       /* octets in data           */ 
+  NULL,                                    /* data                     */
+  0,                                       /* octets in tag            */
+  NULL,                                    /* tag                      */
+  NULL                                     /* pointer to next testcase */
+};
+
+/* end test case 0 */
+
+char null_auth_description[] = "null authentication function";
+
+auth_type_t
+null_auth  = {
+  (auth_alloc_func)      null_auth_alloc,
+  (auth_dealloc_func)    null_auth_dealloc,
+  (auth_init_func)       null_auth_init,
+  (auth_compute_func)    null_auth_compute,
+  (auth_update_func)     null_auth_update,
+  (auth_start_func)      null_auth_start,
+  (char *)               null_auth_description,
+  (int)                  0,  /* instance count */
+  (auth_test_case_t *)   &null_auth_test_case_0,
+  (debug_module_t *)     NULL,
+  (auth_type_id_t)       NULL_AUTH
+};
+
diff --git a/netwerk/srtp/src/crypto/hash/sha1.c b/netwerk/srtp/src/crypto/hash/sha1.c
new file mode 100644
index 000000000..b9a8d1050
--- /dev/null
+++ b/netwerk/srtp/src/crypto/hash/sha1.c
@@ -0,0 +1,405 @@
+/*
+ * sha1.c
+ *
+ * an implementation of the Secure Hash Algorithm v.1 (SHA-1),
+ * specified in FIPS 180-1
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "sha1.h"
+
+debug_module_t mod_sha1 = {
+  0,                 /* debugging is off by default */
+  "sha-1"            /* printable module name       */
+};
+
+/* SN == Rotate left N bits */
+#define S1(X)  ((X << 1)  | (X >> 31))
+#define S5(X)  ((X << 5)  | (X >> 27))
+#define S30(X) ((X << 30) | (X >> 2))
+
+#define f0(B,C,D) ((B & C) | (~B & D))              
+#define f1(B,C,D) (B ^ C ^ D)
+#define f2(B,C,D) ((B & C) | (B & D) | (C & D))
+#define f3(B,C,D) (B ^ C ^ D)
+
+/* 
+ * nota bene: the variable K0 appears in the curses library, so we 
+ * give longer names to these variables to avoid spurious warnings 
+ * on systems that uses curses
+ */
+
+uint32_t SHA_K0 = 0x5A827999;   /* Kt for 0  <= t <= 19 */
+uint32_t SHA_K1 = 0x6ED9EBA1;   /* Kt for 20 <= t <= 39 */
+uint32_t SHA_K2 = 0x8F1BBCDC;   /* Kt for 40 <= t <= 59 */
+uint32_t SHA_K3 = 0xCA62C1D6;   /* Kt for 60 <= t <= 79 */
+
+void
+sha1(const uint8_t *msg,  int octets_in_msg, uint32_t hash_value[5]) {
+  sha1_ctx_t ctx;
+
+  sha1_init(&ctx);
+  sha1_update(&ctx, msg, octets_in_msg);
+  sha1_final(&ctx, hash_value);
+
+}
+
+/*
+ *  sha1_core(M, H) computes the core compression function, where M is
+ *  the next part of the message (in network byte order) and H is the
+ *  intermediate state { H0, H1, ...} (in host byte order)
+ *
+ *  this function does not do any of the padding required in the
+ *  complete SHA1 function
+ *
+ *  this function is used in the SEAL 3.0 key setup routines
+ *  (crypto/cipher/seal.c)
+ */
+
+void
+sha1_core(const uint32_t M[16], uint32_t hash_value[5]) {
+  uint32_t H0;
+  uint32_t H1;
+  uint32_t H2;
+  uint32_t H3;
+  uint32_t H4;
+  uint32_t W[80];
+  uint32_t A, B, C, D, E, TEMP;
+  int t;
+
+  /* copy hash_value into H0, H1, H2, H3, H4 */
+  H0 = hash_value[0];
+  H1 = hash_value[1];
+  H2 = hash_value[2];
+  H3 = hash_value[3];
+  H4 = hash_value[4];
+
+  /* copy/xor message into array */
+
+  W[0]  = be32_to_cpu(M[0]);
+  W[1]  = be32_to_cpu(M[1]);
+  W[2]  = be32_to_cpu(M[2]);
+  W[3]  = be32_to_cpu(M[3]);
+  W[4]  = be32_to_cpu(M[4]);
+  W[5]  = be32_to_cpu(M[5]);
+  W[6]  = be32_to_cpu(M[6]);
+  W[7]  = be32_to_cpu(M[7]);
+  W[8]  = be32_to_cpu(M[8]);
+  W[9]  = be32_to_cpu(M[9]);
+  W[10] = be32_to_cpu(M[10]);
+  W[11] = be32_to_cpu(M[11]);
+  W[12] = be32_to_cpu(M[12]);
+  W[13] = be32_to_cpu(M[13]);
+  W[14] = be32_to_cpu(M[14]);
+  W[15] = be32_to_cpu(M[15]);
+  TEMP = W[13] ^ W[8]  ^ W[2]  ^ W[0];  W[16] = S1(TEMP);
+  TEMP = W[14] ^ W[9]  ^ W[3]  ^ W[1];  W[17] = S1(TEMP);
+  TEMP = W[15] ^ W[10] ^ W[4]  ^ W[2];  W[18] = S1(TEMP);
+  TEMP = W[16] ^ W[11] ^ W[5]  ^ W[3];  W[19] = S1(TEMP);
+  TEMP = W[17] ^ W[12] ^ W[6]  ^ W[4];  W[20] = S1(TEMP);
+  TEMP = W[18] ^ W[13] ^ W[7]  ^ W[5];  W[21] = S1(TEMP);
+  TEMP = W[19] ^ W[14] ^ W[8]  ^ W[6];  W[22] = S1(TEMP);
+  TEMP = W[20] ^ W[15] ^ W[9]  ^ W[7];  W[23] = S1(TEMP);
+  TEMP = W[21] ^ W[16] ^ W[10] ^ W[8];  W[24] = S1(TEMP);
+  TEMP = W[22] ^ W[17] ^ W[11] ^ W[9];  W[25] = S1(TEMP);
+  TEMP = W[23] ^ W[18] ^ W[12] ^ W[10]; W[26] = S1(TEMP);
+  TEMP = W[24] ^ W[19] ^ W[13] ^ W[11]; W[27] = S1(TEMP);
+  TEMP = W[25] ^ W[20] ^ W[14] ^ W[12]; W[28] = S1(TEMP);
+  TEMP = W[26] ^ W[21] ^ W[15] ^ W[13]; W[29] = S1(TEMP);
+  TEMP = W[27] ^ W[22] ^ W[16] ^ W[14]; W[30] = S1(TEMP);
+  TEMP = W[28] ^ W[23] ^ W[17] ^ W[15]; W[31] = S1(TEMP);
+
+  /* process the remainder of the array */
+  for (t=32; t < 80; t++) {
+    TEMP = W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16];
+    W[t] = S1(TEMP);      
+  }
+
+  A = H0; B = H1; C = H2; D = H3; E = H4;
+
+  for (t=0; t < 20; t++) {
+    TEMP = S5(A) + f0(B,C,D) + E + W[t] + SHA_K0;
+    E = D; D = C; C = S30(B); B = A; A = TEMP;
+  }
+  for (   ; t < 40; t++) {
+    TEMP = S5(A) + f1(B,C,D) + E + W[t] + SHA_K1;
+    E = D; D = C; C = S30(B); B = A; A = TEMP;
+  }
+  for (   ; t < 60; t++) {
+    TEMP = S5(A) + f2(B,C,D) + E + W[t] + SHA_K2;
+    E = D; D = C; C = S30(B); B = A; A = TEMP;
+  }
+  for (   ; t < 80; t++) {
+    TEMP = S5(A) + f3(B,C,D) + E + W[t] + SHA_K3;
+    E = D; D = C; C = S30(B); B = A; A = TEMP;
+  }
+
+  hash_value[0] = H0 + A;
+  hash_value[1] = H1 + B;
+  hash_value[2] = H2 + C;
+  hash_value[3] = H3 + D;
+  hash_value[4] = H4 + E;
+
+  return;
+}
+
+void
+sha1_init(sha1_ctx_t *ctx) {
+
+  /* initialize state vector */
+  ctx->H[0] = 0x67452301;
+  ctx->H[1] = 0xefcdab89;
+  ctx->H[2] = 0x98badcfe;
+  ctx->H[3] = 0x10325476;
+  ctx->H[4] = 0xc3d2e1f0;
+
+  /* indicate that message buffer is empty */
+  ctx->octets_in_buffer = 0;
+
+  /* reset message bit-count to zero */
+  ctx->num_bits_in_msg = 0;
+
+}
+
+void
+sha1_update(sha1_ctx_t *ctx, const uint8_t *msg, int octets_in_msg) {
+  int i;
+  uint8_t *buf = (uint8_t *)ctx->M;
+
+  /* update message bit-count */
+  ctx->num_bits_in_msg += octets_in_msg * 8;
+
+  /* loop over 16-word blocks of M */
+  while (octets_in_msg > 0) {
+
+    if (octets_in_msg + ctx->octets_in_buffer >= 64) {
+
+      /* 
+       * copy words of M into msg buffer until that buffer is full,
+       * converting them into host byte order as needed
+       */
+      octets_in_msg -= (64 - ctx->octets_in_buffer);
+      for (i=ctx->octets_in_buffer; i < 64; i++) 
+	buf[i] = *msg++;
+      ctx->octets_in_buffer = 0;
+
+      /* process a whole block */
+
+      debug_print(mod_sha1, "(update) running sha1_core()", NULL);
+
+      sha1_core(ctx->M, ctx->H);
+
+    } else {
+
+      debug_print(mod_sha1, "(update) not running sha1_core()", NULL);
+
+      for (i=ctx->octets_in_buffer; 
+	   i < (ctx->octets_in_buffer + octets_in_msg); i++)
+	buf[i] = *msg++;
+      ctx->octets_in_buffer += octets_in_msg;
+      octets_in_msg = 0;
+    }
+
+  }
+
+}
+
+/*
+ * sha1_final(ctx, output) computes the result for ctx and copies it
+ * into the twenty octets located at *output
+ */
+
+void
+sha1_final(sha1_ctx_t *ctx, uint32_t *output) {
+  uint32_t A, B, C, D, E, TEMP;
+  uint32_t W[80];  
+  int i, t;
+
+  /*
+   * process the remaining octets_in_buffer, padding and terminating as
+   * necessary
+   */
+  {
+    int tail = ctx->octets_in_buffer % 4;
+
+    /* copy/xor message into array */
+    for (i=0; i < (ctx->octets_in_buffer+3)/4; i++) 
+      W[i]  = be32_to_cpu(ctx->M[i]);
+
+    /* set the high bit of the octet immediately following the message */
+    switch (tail) {
+    case (3):
+      W[i-1] = (be32_to_cpu(ctx->M[i-1]) & 0xffffff00) | 0x80;
+      W[i] = 0x0;
+      break;
+    case (2):      
+      W[i-1] = (be32_to_cpu(ctx->M[i-1]) & 0xffff0000) | 0x8000;
+      W[i] = 0x0;
+      break;
+    case (1):
+      W[i-1] = (be32_to_cpu(ctx->M[i-1]) & 0xff000000) | 0x800000;
+      W[i] = 0x0;
+      break;
+    case (0):
+      W[i] = 0x80000000;
+      break;
+    }
+
+    /* zeroize remaining words */
+    for (i++   ; i < 15; i++)
+      W[i] = 0x0;
+
+    /* 
+     * if there is room at the end of the word array, then set the
+     * last word to the bit-length of the message; otherwise, set that
+     * word to zero and then we need to do one more run of the
+     * compression algo.
+     */
+    if (ctx->octets_in_buffer < 56) 
+      W[15] = ctx->num_bits_in_msg;
+    else if (ctx->octets_in_buffer < 60)
+      W[15] = 0x0;
+
+    /* process the word array */
+    for (t=16; t < 80; t++) {
+      TEMP = W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16];
+      W[t] = S1(TEMP);
+    }
+
+    A = ctx->H[0]; 
+    B = ctx->H[1]; 
+    C = ctx->H[2]; 
+    D = ctx->H[3]; 
+    E = ctx->H[4];
+
+    for (t=0; t < 20; t++) {
+      TEMP = S5(A) + f0(B,C,D) + E + W[t] + SHA_K0;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+    for (   ; t < 40; t++) {
+      TEMP = S5(A) + f1(B,C,D) + E + W[t] + SHA_K1;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+    for (   ; t < 60; t++) {
+      TEMP = S5(A) + f2(B,C,D) + E + W[t] + SHA_K2;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+    for (   ; t < 80; t++) {
+      TEMP = S5(A) + f3(B,C,D) + E + W[t] + SHA_K3;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+
+    ctx->H[0] += A;
+    ctx->H[1] += B;
+    ctx->H[2] += C;
+    ctx->H[3] += D;
+    ctx->H[4] += E;
+
+  }
+
+  debug_print(mod_sha1, "(final) running sha1_core()", NULL);
+
+  if (ctx->octets_in_buffer >= 56) {
+
+    debug_print(mod_sha1, "(final) running sha1_core() again", NULL);
+
+    /* we need to do one final run of the compression algo */
+
+    /* 
+     * set initial part of word array to zeros, and set the 
+     * final part to the number of bits in the message
+     */
+    for (i=0; i < 15; i++)
+      W[i] = 0x0;
+    W[15] = ctx->num_bits_in_msg;
+
+    /* process the word array */
+    for (t=16; t < 80; t++) {
+      TEMP = W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16];
+      W[t] = S1(TEMP);
+    }
+
+    A = ctx->H[0]; 
+    B = ctx->H[1]; 
+    C = ctx->H[2]; 
+    D = ctx->H[3]; 
+    E = ctx->H[4];
+
+    for (t=0; t < 20; t++) {
+      TEMP = S5(A) + f0(B,C,D) + E + W[t] + SHA_K0;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+    for (   ; t < 40; t++) {
+      TEMP = S5(A) + f1(B,C,D) + E + W[t] + SHA_K1;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+    for (   ; t < 60; t++) {
+      TEMP = S5(A) + f2(B,C,D) + E + W[t] + SHA_K2;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+    for (   ; t < 80; t++) {
+      TEMP = S5(A) + f3(B,C,D) + E + W[t] + SHA_K3;
+      E = D; D = C; C = S30(B); B = A; A = TEMP;
+    }
+
+    ctx->H[0] += A;
+    ctx->H[1] += B;
+    ctx->H[2] += C;
+    ctx->H[3] += D;
+    ctx->H[4] += E;
+  }
+
+  /* copy result into output buffer */
+  output[0] = be32_to_cpu(ctx->H[0]);
+  output[1] = be32_to_cpu(ctx->H[1]);
+  output[2] = be32_to_cpu(ctx->H[2]);
+  output[3] = be32_to_cpu(ctx->H[3]);
+  output[4] = be32_to_cpu(ctx->H[4]);
+
+  /* indicate that message buffer in context is empty */
+  ctx->octets_in_buffer = 0;
+
+  return;
+}
+
+
+
diff --git a/netwerk/srtp/src/crypto/include/aes.h b/netwerk/srtp/src/crypto/include/aes.h
new file mode 100644
index 000000000..9d3149683
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/aes.h
@@ -0,0 +1,89 @@
+/*
+ * aes.h
+ *
+ * header file for the AES block cipher
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef _AES_H
+#define _AES_H
+
+#include "config.h"
+
+#include "datatypes.h"
+#include "err.h"
+
+/* aes internals */
+
+typedef struct {
+  v128_t round[15];
+  int num_rounds;
+} aes_expanded_key_t;
+
+err_status_t
+aes_expand_encryption_key(const uint8_t *key,
+			  int key_len,
+			  aes_expanded_key_t *expanded_key);
+
+err_status_t
+aes_expand_decryption_key(const uint8_t *key,
+			  int key_len,
+			  aes_expanded_key_t *expanded_key);
+
+void
+aes_encrypt(v128_t *plaintext, const aes_expanded_key_t *exp_key);
+
+void
+aes_decrypt(v128_t *plaintext, const aes_expanded_key_t *exp_key);
+
+#if 0
+/*
+ * internal functions 
+ */
+
+void
+aes_init_sbox(void);
+
+void
+aes_compute_tables(void);
+#endif 
+
+#endif /* _AES_H */
diff --git a/netwerk/srtp/src/crypto/include/aes_cbc.h b/netwerk/srtp/src/crypto/include/aes_cbc.h
new file mode 100644
index 000000000..6436b5b17
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/aes_cbc.h
@@ -0,0 +1,85 @@
+/*
+ * aes_cbc.h
+ *
+ * Header for AES Cipher Blobk Chaining Mode.
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ *
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef AES_CBC_H
+#define AES_CBC_H
+
+#include "aes.h"
+#include "cipher.h"
+
+typedef struct {
+  v128_t   state;                  /* cipher chaining state            */
+  v128_t   previous;               /* previous ciphertext block        */
+  aes_expanded_key_t expanded_key; /* the cipher key                   */
+} aes_cbc_ctx_t;
+
+err_status_t
+aes_cbc_set_key(aes_cbc_ctx_t *c,
+		const unsigned char *key); 
+
+err_status_t
+aes_cbc_encrypt(aes_cbc_ctx_t *c, 
+		unsigned char *buf, 
+		unsigned int  *bytes_in_data);
+
+err_status_t
+aes_cbc_context_init(aes_cbc_ctx_t *c, const uint8_t *key, 
+		     int key_len, cipher_direction_t dir);
+
+err_status_t
+aes_cbc_set_iv(aes_cbc_ctx_t *c, void *iv);
+
+err_status_t
+aes_cbc_nist_encrypt(aes_cbc_ctx_t *c,
+		     unsigned char *data, 
+		     unsigned int *bytes_in_data);
+
+err_status_t
+aes_cbc_nist_decrypt(aes_cbc_ctx_t *c,
+		     unsigned char *data, 
+		     unsigned int *bytes_in_data);
+
+#endif /* AES_CBC_H */
+
diff --git a/netwerk/srtp/src/crypto/include/aes_icm.h b/netwerk/srtp/src/crypto/include/aes_icm.h
new file mode 100644
index 000000000..6b4aea699
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/aes_icm.h
@@ -0,0 +1,92 @@
+/*
+ * aes_icm.h
+ *
+ * Header for AES Integer Counter Mode.
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ *
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef AES_ICM_H
+#define AES_ICM_H
+
+#include "aes.h"
+#include "cipher.h"
+
+typedef struct {
+  v128_t   counter;                /* holds the counter value          */
+  v128_t   offset;                 /* initial offset value             */
+  v128_t   keystream_buffer;       /* buffers bytes of keystream       */
+  aes_expanded_key_t expanded_key; /* the cipher key                   */
+  int      bytes_in_buffer;        /* number of unused bytes in buffer */
+} aes_icm_ctx_t;
+
+
+err_status_t
+aes_icm_context_init(aes_icm_ctx_t *c,
+		     const unsigned char *key,
+		     int key_len); 
+
+err_status_t
+aes_icm_set_iv(aes_icm_ctx_t *c, void *iv);
+
+err_status_t
+aes_icm_encrypt(aes_icm_ctx_t *c,
+		unsigned char *buf, unsigned int *bytes_to_encr);
+
+err_status_t
+aes_icm_output(aes_icm_ctx_t *c,
+	       unsigned char *buf, int bytes_to_output);
+
+err_status_t 
+aes_icm_dealloc(cipher_t *c);
+ 
+err_status_t 
+aes_icm_encrypt_ismacryp(aes_icm_ctx_t *c, 
+			 unsigned char *buf, 
+			 unsigned int *enc_len, 
+			 int forIsmacryp);
+ 
+err_status_t 
+aes_icm_alloc_ismacryp(cipher_t **c, 
+		       int key_len, 
+		       int forIsmacryp);
+
+#endif /* AES_ICM_H */
+
diff --git a/netwerk/srtp/src/crypto/include/alloc.h b/netwerk/srtp/src/crypto/include/alloc.h
new file mode 100644
index 000000000..5980eed6c
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/alloc.h
@@ -0,0 +1,57 @@
+/*
+ * alloc.h
+ *
+ * interface to memory allocation and deallocation, with optional debugging 
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef CRYPTO_ALLOC_H
+#define CRYPTO_ALLOC_H
+
+#include "datatypes.h"
+
+void *
+crypto_alloc(size_t size);
+
+void
+crypto_free(void *ptr);
+
+#endif /* CRYPTO_ALLOC_H */
diff --git a/netwerk/srtp/src/crypto/include/auth.h b/netwerk/srtp/src/crypto/include/auth.h
new file mode 100644
index 000000000..5b5e4b21d
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/auth.h
@@ -0,0 +1,171 @@
+/*
+ * auth.h
+ *
+ * common interface to authentication functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef AUTH_H
+#define AUTH_H
+
+#include "datatypes.h"          
+#include "err.h"                /* error codes    */
+#include "crypto.h"		/* for auth_type_id_t */
+#include "crypto_types.h"	/* for values of auth_type_id_t */
+
+typedef struct auth_type_t *auth_type_pointer;
+typedef struct auth_t      *auth_pointer_t;
+
+typedef err_status_t (*auth_alloc_func)
+     (auth_pointer_t *ap, int key_len, int out_len);
+
+typedef err_status_t (*auth_init_func)
+     (void *state, const uint8_t *key, int key_len);
+
+typedef err_status_t (*auth_dealloc_func)(auth_pointer_t ap);
+
+typedef err_status_t (*auth_compute_func)
+     (void *state, uint8_t *buffer, int octets_to_auth, 
+      int tag_len, uint8_t *tag);
+
+typedef err_status_t (*auth_update_func)
+     (void *state, uint8_t *buffer, int octets_to_auth);
+
+typedef err_status_t (*auth_start_func)(void *state);
+     
+/* some syntactic sugar on these function types */
+
+#define auth_type_alloc(at, a, klen, outlen)                        \
+                 ((at)->alloc((a), (klen), (outlen)))
+
+#define auth_init(a, key)                                           \
+                 (((a)->type)->init((a)->state, (key), ((a)->key_len)))
+
+#define auth_compute(a, buf, len, res)                              \
+       (((a)->type)->compute((a)->state, (buf), (len), (a)->out_len, (res)))
+
+#define auth_update(a, buf, len)                                    \
+       (((a)->type)->update((a)->state, (buf), (len)))
+
+#define auth_start(a)(((a)->type)->start((a)->state))
+
+#define auth_dealloc(c) (((c)->type)->dealloc(c))
+
+/* functions to get information about a particular auth_t */
+
+int
+auth_get_key_length(const struct auth_t *a);
+
+int
+auth_get_tag_length(const struct auth_t *a);
+
+int
+auth_get_prefix_length(const struct auth_t *a);
+
+/*
+ * auth_test_case_t is a (list of) key/message/tag values that are
+ * known to be correct for a particular cipher.  this data can be used
+ * to test an implementation in an on-the-fly self test of the
+ * correcness of the implementation.  (see the auth_type_self_test()
+ * function below)
+ */
+
+typedef struct auth_test_case_t {
+  int key_length_octets;                    /* octets in key            */
+  uint8_t *key;                             /* key                      */
+  int data_length_octets;                   /* octets in data           */ 
+  uint8_t *data;                            /* data                     */
+  int tag_length_octets;                    /* octets in tag            */
+  uint8_t *tag;                             /* tag                      */
+  struct auth_test_case_t *next_test_case;  /* pointer to next testcase */
+} auth_test_case_t;
+
+/* auth_type_t */
+
+typedef struct auth_type_t {
+  auth_alloc_func      alloc;
+  auth_dealloc_func    dealloc;
+  auth_init_func       init;
+  auth_compute_func    compute;
+  auth_update_func     update;
+  auth_start_func      start;
+  char                *description;
+  int                  ref_count;
+  auth_test_case_t    *test_data;
+  debug_module_t      *debug;
+  auth_type_id_t       id;
+} auth_type_t;
+
+typedef struct auth_t {
+  auth_type_t *type;
+  void        *state;                   
+  int          out_len;           /* length of output tag in octets */
+  int          key_len;           /* length of key in octets        */
+  int          prefix_len;        /* length of keystream prefix     */
+} auth_t;
+
+/* 
+ * auth_type_self_test() tests an auth_type against test cases
+ * provided in an array of values of key/message/tag that is known to
+ * be good
+ */
+
+err_status_t
+auth_type_self_test(const auth_type_t *at);
+
+/* 
+ * auth_type_test() tests an auth_type against external test cases
+ * provided in an array of values of key/message/tag that is known to
+ * be good
+ */
+
+err_status_t
+auth_type_test(const auth_type_t *at, const auth_test_case_t *test_data);
+
+/*
+ * auth_type_get_ref_count(at) returns the reference count (the number
+ * of instantiations) of the auth_type_t at
+ */
+
+int
+auth_type_get_ref_count(const auth_type_t *at);
+
+#endif /* AUTH_H */
diff --git a/netwerk/srtp/src/crypto/include/cipher.h b/netwerk/srtp/src/crypto/include/cipher.h
new file mode 100644
index 000000000..eff6dd154
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/cipher.h
@@ -0,0 +1,230 @@
+/*
+ * cipher.h
+ *
+ * common interface to ciphers
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef CIPHER_H
+#define CIPHER_H
+
+#include "datatypes.h"          
+#include "rdbx.h"               /* for xtd_seq_num_t */
+#include "err.h"                /* for error codes  */
+#include "crypto.h"		/* for cipher_type_id_t */
+#include "crypto_types.h"	/* for values of cipher_type_id_t */
+
+
+/**
+ * @brief cipher_direction_t defines a particular cipher operation. 
+ *
+ * A cipher_direction_t is an enum that describes a particular cipher
+ * operation, i.e. encryption or decryption.  For some ciphers, this
+ * distinction does not matter, but for others, it is essential.
+ */
+
+typedef enum { 
+  direction_encrypt, /**< encryption (convert plaintext to ciphertext) */
+  direction_decrypt, /**< decryption (convert ciphertext to plaintext) */
+  direction_any      /**< encryption or decryption                     */
+} cipher_direction_t;
+
+/*
+ * the cipher_pointer and cipher_type_pointer definitions are needed
+ * as cipher_t and cipher_type_t are not yet defined
+ */
+
+typedef struct cipher_type_t *cipher_type_pointer_t;
+typedef struct cipher_t      *cipher_pointer_t;
+
+/*
+ *  a cipher_alloc_func_t allocates (but does not initialize) a cipher_t 
+ */
+
+typedef err_status_t (*cipher_alloc_func_t)
+     (cipher_pointer_t *cp, int key_len);
+
+/* 
+ * a cipher_init_func_t [re-]initializes a cipher_t with a given key
+ * and direction (i.e., encrypt or decrypt)
+ */
+
+typedef err_status_t (*cipher_init_func_t)
+(void *state, const uint8_t *key, int key_len, cipher_direction_t dir);
+
+/* a cipher_dealloc_func_t de-allocates a cipher_t */
+
+typedef err_status_t (*cipher_dealloc_func_t)(cipher_pointer_t cp);
+
+/* a cipher_set_segment_func_t sets the segment index of a cipher_t */
+
+typedef err_status_t (*cipher_set_segment_func_t)
+     (void *state, xtd_seq_num_t idx);
+
+/* a cipher_encrypt_func_t encrypts data in-place */
+
+typedef err_status_t (*cipher_encrypt_func_t)
+     (void *state, uint8_t *buffer, unsigned int *octets_to_encrypt);
+
+/* a cipher_decrypt_func_t decrypts data in-place */
+
+typedef err_status_t (*cipher_decrypt_func_t)
+     (void *state, uint8_t *buffer, unsigned int *octets_to_decrypt);
+
+/* 
+ * a cipher_set_iv_func_t function sets the current initialization vector
+ */
+
+typedef err_status_t (*cipher_set_iv_func_t)
+     (cipher_pointer_t cp, void *iv);
+
+/*
+ * cipher_test_case_t is a (list of) key, salt, xtd_seq_num_t,
+ * plaintext, and ciphertext values that are known to be correct for a
+ * particular cipher.  this data can be used to test an implementation
+ * in an on-the-fly self test of the correcness of the implementation.
+ * (see the cipher_type_self_test() function below)
+ */
+
+typedef struct cipher_test_case_t {
+  int key_length_octets;                      /* octets in key            */
+  uint8_t *key;                               /* key                      */
+  uint8_t *idx;                               /* packet index             */
+  int plaintext_length_octets;                /* octets in plaintext      */ 
+  uint8_t *plaintext;                         /* plaintext                */
+  int ciphertext_length_octets;               /* octets in plaintext      */ 
+  uint8_t *ciphertext;                        /* ciphertext               */
+  struct cipher_test_case_t *next_test_case;  /* pointer to next testcase */
+} cipher_test_case_t;
+
+/* cipher_type_t defines the 'metadata' for a particular cipher type */
+
+typedef struct cipher_type_t {
+  cipher_alloc_func_t         alloc;
+  cipher_dealloc_func_t       dealloc;
+  cipher_init_func_t          init;
+  cipher_encrypt_func_t       encrypt;
+  cipher_encrypt_func_t       decrypt;
+  cipher_set_iv_func_t        set_iv;
+  char                       *description;
+  int                         ref_count;
+  cipher_test_case_t         *test_data;
+  debug_module_t             *debug;
+  cipher_type_id_t            id;
+} cipher_type_t;
+
+/*
+ * cipher_t defines an instantiation of a particular cipher, with fixed
+ * key length, key and salt values
+ */
+
+typedef struct cipher_t {
+  cipher_type_t *type;
+  void          *state;
+  int            key_len;
+#ifdef FORCE_64BIT_ALIGN
+  int            pad;
+#endif
+} cipher_t;
+
+/* some syntactic sugar on these function types */
+
+#define cipher_type_alloc(ct, c, klen) ((ct)->alloc((c), (klen)))
+
+#define cipher_dealloc(c) (((c)->type)->dealloc(c))
+
+#define cipher_init(c, k, dir) (((c)->type)->init(((c)->state), (k), ((c)->key_len), (dir)))
+
+#define cipher_encrypt(c, buf, len) \
+        (((c)->type)->encrypt(((c)->state), (buf), (len)))
+
+#define cipher_decrypt(c, buf, len) \
+        (((c)->type)->decrypt(((c)->state), (buf), (len)))
+
+#define cipher_set_iv(c, n)                           \
+  ((c) ? (((c)->type)->set_iv(((cipher_pointer_t)(c)->state), (n))) :   \
+                                err_status_no_such_op)  
+
+err_status_t
+cipher_output(cipher_t *c, uint8_t *buffer, int num_octets_to_output);
+
+
+/* some bookkeeping functions */
+
+int
+cipher_get_key_length(const cipher_t *c);
+
+
+/* 
+ * cipher_type_self_test() tests a cipher against test cases provided in 
+ * an array of values of key/xtd_seq_num_t/plaintext/ciphertext 
+ * that is known to be good
+ */
+
+err_status_t
+cipher_type_self_test(const cipher_type_t *ct);
+
+
+/* 
+ * cipher_type_test() tests a cipher against external test cases provided in 
+ * an array of values of key/xtd_seq_num_t/plaintext/ciphertext 
+ * that is known to be good
+ */
+
+err_status_t
+cipher_type_test(const cipher_type_t *ct, const cipher_test_case_t *test_data);
+
+
+/*
+ * cipher_bits_per_second(c, l, t) computes (and estimate of) the
+ * number of bits that a cipher implementation can encrypt in a second
+ * 
+ * c is a cipher (which MUST be allocated and initialized already), l
+ * is the length in octets of the test data to be encrypted, and t is
+ * the number of trials
+ *
+ * if an error is encountered, then the value 0 is returned
+ */
+
+uint64_t
+cipher_bits_per_second(cipher_t *c, int octets_in_buffer, int num_trials);
+
+#endif /* CIPHER_H */
diff --git a/netwerk/srtp/src/crypto/include/crypto.h b/netwerk/srtp/src/crypto/include/crypto.h
new file mode 100644
index 000000000..1daf8ead1
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/crypto.h
@@ -0,0 +1,78 @@
+/*
+ * crypto.h
+ *
+ * API for libcrypto
+ * 
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef CRYPTO_H
+#define CRYPTO_H
+
+/** 
+ *  @brief A cipher_type_id_t is an identifier for a particular cipher
+ *  type.
+ *
+ *  A cipher_type_id_t is an integer that represents a particular
+ *  cipher type, e.g. the Advanced Encryption Standard (AES).  A
+ *  NULL_CIPHER is avaliable; this cipher leaves the data unchanged,
+ *  and can be selected to indicate that no encryption is to take
+ *  place.
+ * 
+ *  @ingroup Ciphers
+ */
+typedef uint32_t cipher_type_id_t; 
+
+/**
+ *  @brief An auth_type_id_t is an identifier for a particular authentication
+ *   function.
+ *
+ *  An auth_type_id_t is an integer that represents a particular
+ *  authentication function type, e.g. HMAC-SHA1.  A NULL_AUTH is
+ *  avaliable; this authentication function performs no computation,
+ *  and can be selected to indicate that no authentication is to take
+ *  place.
+ *  
+ *  @ingroup Authentication
+ */
+typedef uint32_t auth_type_id_t;
+
+#endif /* CRYPTO_H */
+
+
diff --git a/netwerk/srtp/src/crypto/include/crypto_kernel.h b/netwerk/srtp/src/crypto/include/crypto_kernel.h
new file mode 100644
index 000000000..1acf4978d
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/crypto_kernel.h
@@ -0,0 +1,280 @@
+/*
+ * crypto_kernel.h
+ *
+ * header for the cryptographic kernel
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef CRYPTO_KERNEL
+#define CRYPTO_KERNEL
+
+#include "rand_source.h"       
+#include "prng.h"
+#include "cipher.h"    
+#include "auth.h"
+#include "cryptoalg.h"
+#include "stat.h"
+#include "err.h"
+#include "crypto_types.h"
+#include "key.h"
+#include "crypto.h"
+
+/*
+ * crypto_kernel_state_t defines the possible states:
+ *
+ *    insecure - not yet initialized
+ *    secure   - initialized and passed self-tests
+ */
+
+typedef enum {
+  crypto_kernel_state_insecure,
+  crypto_kernel_state_secure
+} crypto_kernel_state_t;
+
+/* 
+ * linked list of cipher types 
+ */
+
+typedef struct kernel_cipher_type {
+  cipher_type_id_t  id;
+  cipher_type_t    *cipher_type;
+  struct kernel_cipher_type *next;
+} kernel_cipher_type_t;
+
+/* 
+ * linked list of auth types 
+ */
+
+typedef struct kernel_auth_type {
+  auth_type_id_t  id;
+  auth_type_t    *auth_type;
+  struct kernel_auth_type *next;
+} kernel_auth_type_t;
+
+/*
+ * linked list of debug modules 
+ */
+
+typedef struct kernel_debug_module {
+  debug_module_t *mod;
+  struct kernel_debug_module *next;
+} kernel_debug_module_t;
+
+
+/*
+ * crypto_kernel_t is the data structure for the crypto kernel
+ *
+ * note that there is *exactly one* instance of this data type,
+ * a global variable defined in crypto_kernel.c
+ */
+
+typedef struct {
+  crypto_kernel_state_t state;              /* current state of kernel     */
+  kernel_cipher_type_t *cipher_type_list;   /* list of all cipher types    */
+  kernel_auth_type_t   *auth_type_list;     /* list of all auth func types */
+  kernel_debug_module_t *debug_module_list; /* list of all debug modules   */
+} crypto_kernel_t;
+
+
+/*
+ * crypto_kernel_t external api
+ */
+
+
+/*
+ * The function crypto_kernel_init() initialized the crypto kernel and
+ * runs the self-test operations on the random number generators and
+ * crypto algorithms.  Possible return values are:
+ *
+ *    err_status_ok     initialization successful
+ *    <other>           init failure 
+ *
+ * If any value other than err_status_ok is returned, the
+ * crypto_kernel MUST NOT be used.  
+ */
+
+err_status_t
+crypto_kernel_init(void);
+
+
+/*
+ * The function crypto_kernel_shutdown() de-initializes the
+ * crypto_kernel, zeroizes keys and other cryptographic material, and
+ * deallocates any dynamically allocated memory.  Possible return
+ * values are:
+ *
+ *    err_status_ok     shutdown successful
+ *    <other>           shutdown failure 
+ *
+ */
+
+err_status_t
+crypto_kernel_shutdown(void);
+
+/*
+ * The function crypto_kernel_stats() checks the the crypto_kernel,
+ * running tests on the ciphers, auth funcs, and rng, and prints out a
+ * status report.  Possible return values are:
+ *
+ *    err_status_ok     all tests were passed
+ *    <other>           a test failed 
+ *
+ */
+
+err_status_t
+crypto_kernel_status(void);
+
+
+/*
+ * crypto_kernel_list_debug_modules() outputs a list of debugging modules
+ *
+ */
+
+err_status_t
+crypto_kernel_list_debug_modules(void);
+
+/*
+ * crypto_kernel_load_cipher_type()
+ *
+ */
+
+err_status_t
+crypto_kernel_load_cipher_type(cipher_type_t *ct, cipher_type_id_t id);
+
+err_status_t
+crypto_kernel_load_auth_type(auth_type_t *ct, auth_type_id_t id);
+
+/*
+ * crypto_kernel_replace_cipher_type(ct, id)
+ * 
+ * replaces the crypto kernel's existing cipher for the cipher_type id
+ * with a new one passed in externally.  The new cipher must pass all the
+ * existing cipher_type's self tests as well as its own.
+ */
+err_status_t
+crypto_kernel_replace_cipher_type(cipher_type_t *ct, cipher_type_id_t id);
+
+
+/*
+ * crypto_kernel_replace_auth_type(ct, id)
+ * 
+ * replaces the crypto kernel's existing cipher for the auth_type id
+ * with a new one passed in externally.  The new auth type must pass all the
+ * existing auth_type's self tests as well as its own.
+ */
+err_status_t
+crypto_kernel_replace_auth_type(auth_type_t *ct, auth_type_id_t id);
+
+
+err_status_t
+crypto_kernel_load_debug_module(debug_module_t *new_dm);
+
+/*
+ * crypto_kernel_alloc_cipher(id, cp, key_len); 
+ *
+ * allocates a cipher of type id at location *cp, with key length
+ * key_len octets.  Return values are:
+ * 
+ *    err_status_ok           no problems
+ *    err_status_alloc_fail   an allocation failure occured
+ *    err_status_fail         couldn't find cipher with identifier 'id'
+ */
+
+err_status_t
+crypto_kernel_alloc_cipher(cipher_type_id_t id, 
+			   cipher_pointer_t *cp, 
+			   int key_len);
+
+/*
+ * crypto_kernel_alloc_auth(id, ap, key_len, tag_len); 
+ *
+ * allocates an auth function of type id at location *ap, with key
+ * length key_len octets and output tag length of tag_len.  Return
+ * values are:
+ * 
+ *    err_status_ok           no problems
+ *    err_status_alloc_fail   an allocation failure occured
+ *    err_status_fail         couldn't find auth with identifier 'id'
+ */
+
+err_status_t
+crypto_kernel_alloc_auth(auth_type_id_t id, 
+			 auth_pointer_t *ap, 
+			 int key_len,
+			 int tag_len);
+
+
+/*
+ * crypto_kernel_set_debug_module(mod_name, v)
+ * 
+ * sets dynamic debugging to the value v (0 for off, 1 for on) for the
+ * debug module with the name mod_name
+ *
+ * returns err_status_ok on success, err_status_fail otherwise
+ */
+
+err_status_t
+crypto_kernel_set_debug_module(char *mod_name, int v);
+
+/**
+ * @brief writes a random octet string.
+ *
+ * The function call crypto_get_random(dest, len) writes len octets of
+ * random data to the location to which dest points, and returns an
+ * error code.  This error code @b must be checked, and if a failure is
+ * reported, the data in the buffer @b must @b not be used.
+ * 
+ * @warning If the return code is not checked, then non-random
+ *          data may be in the buffer.  This function will fail
+ *          unless it is called after crypto_kernel_init().
+ *
+ * @return
+ *     - err_status_ok    if no problems occured.
+ *     - [other]          a problem occured, and no assumptions should
+ *                        be made about the contents of the destination
+ *                        buffer.
+ *
+ * @ingroup SRTP
+ */
+err_status_t
+crypto_get_random(unsigned char *buffer, unsigned int length);
+     
+#endif /* CRYPTO_KERNEL */
diff --git a/netwerk/srtp/src/crypto/include/crypto_math.h b/netwerk/srtp/src/crypto/include/crypto_math.h
new file mode 100644
index 000000000..52f083721
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/crypto_math.h
@@ -0,0 +1,239 @@
+/*
+ * math.h
+ *
+ * crypto math operations and data types
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef MATH_H
+#define MATH_H
+
+#include "datatypes.h"
+
+unsigned char
+v32_weight(v32_t a);
+
+unsigned char
+v32_distance(v32_t x, v32_t y);
+
+unsigned int
+v32_dot_product(v32_t a, v32_t b);
+
+char *
+v16_bit_string(v16_t x);
+
+char *
+v32_bit_string(v32_t x);
+
+char *
+v64_bit_string(const v64_t *x);
+
+char *
+octet_hex_string(uint8_t x);
+
+char *
+v16_hex_string(v16_t x);
+
+char *
+v32_hex_string(v32_t x);
+
+char *
+v64_hex_string(const v64_t *x);
+
+int
+hex_char_to_nibble(uint8_t c);
+
+int
+is_hex_string(char *s);
+
+v16_t
+hex_string_to_v16(char *s);
+
+v32_t
+hex_string_to_v32(char *s);
+
+v64_t
+hex_string_to_v64(char *s);
+
+/* the matrix A[] is stored in column format, i.e., A[i] is
+   the ith column of the matrix */
+
+uint8_t 
+A_times_x_plus_b(uint8_t A[8], uint8_t x, uint8_t b);
+
+void
+v16_copy_octet_string(v16_t *x, const uint8_t s[2]);
+
+void
+v32_copy_octet_string(v32_t *x, const uint8_t s[4]);
+
+void
+v64_copy_octet_string(v64_t *x, const uint8_t s[8]);
+
+void
+v128_add(v128_t *z, v128_t *x, v128_t *y);
+
+int
+octet_string_is_eq(uint8_t *a, uint8_t *b, int len);
+
+void
+octet_string_set_to_zero(uint8_t *s, int len);
+
+
+
+/* 
+ * the matrix A[] is stored in column format, i.e., A[i] is the ith
+ * column of the matrix
+*/
+uint8_t 
+A_times_x_plus_b(uint8_t A[8], uint8_t x, uint8_t b);
+
+
+#if 0
+#if WORDS_BIGENDIAN
+
+#define _v128_add(z, x, y) {                    \
+  uint64_t tmp;					\
+    						\
+  tmp = x->v32[3] + y->v32[3];                  \
+  z->v32[3] = (uint32_t) tmp;			\
+  						\
+  tmp =  x->v32[2] + y->v32[2] + (tmp >> 32);	\
+  z->v32[2] = (uint32_t) tmp;                   \
+						\
+  tmp =  x->v32[1] + y->v32[1] + (tmp >> 32);	\
+  z->v32[1] = (uint32_t) tmp;			\
+                                                \
+  tmp =  x->v32[0] + y->v32[0] + (tmp >> 32);	\
+  z->v32[0] = (uint32_t) tmp;			\
+}
+
+#else /* assume little endian architecture */
+
+#define _v128_add(z, x, y) {                    \
+  uint64_t tmp;					\
+						\
+  tmp = htonl(x->v32[3]) + htonl(y->v32[3]);	\
+  z->v32[3] = ntohl((uint32_t) tmp);		\
+  						\
+  tmp =  htonl(x->v32[2]) + htonl(y->v32[2])	\
+       + htonl(tmp >> 32);			\
+  z->v32[2] = ntohl((uint32_t) tmp);		\
+                                                \
+  tmp =  htonl(x->v32[1]) + htonl(y->v32[1])	\
+       + htonl(tmp >> 32);			\
+  z->v32[1] = ntohl((uint32_t) tmp);		\
+  						\
+  tmp =  htonl(x->v32[0]) + htonl(y->v32[0])	\
+       + htonl(tmp >> 32);			\
+  z->v32[0] = ntohl((uint32_t) tmp);		\
+}
+						
+#endif /* WORDS_BIGENDIAN */                      
+#endif
+
+#ifdef DATATYPES_USE_MACROS  /* little functions are really macros */
+
+#define v128_set_to_zero(z)       _v128_set_to_zero(z)
+#define v128_copy(z, x)           _v128_copy(z, x)
+#define v128_xor(z, x, y)         _v128_xor(z, x, y)
+#define v128_and(z, x, y)         _v128_and(z, x, y)
+#define v128_or(z, x, y)          _v128_or(z, x, y)
+#define v128_complement(x)        _v128_complement(x) 
+#define v128_is_eq(x, y)          _v128_is_eq(x, y)
+#define v128_xor_eq(x, y)         _v128_xor_eq(x, y)
+#define v128_get_bit(x, i)        _v128_get_bit(x, i)
+#define v128_set_bit(x, i)        _v128_set_bit(x, i)
+#define v128_clear_bit(x, i)      _v128_clear_bit(x, i)
+#define v128_set_bit_to(x, i, y)  _v128_set_bit_to(x, i, y)
+
+#else
+
+void
+v128_set_to_zero(v128_t *x);
+
+int
+v128_is_eq(const v128_t *x, const v128_t *y);
+
+void
+v128_copy(v128_t *x, const v128_t *y);
+
+void
+v128_xor(v128_t *z, v128_t *x, v128_t *y);
+
+void
+v128_and(v128_t *z, v128_t *x, v128_t *y);
+
+void
+v128_or(v128_t *z, v128_t *x, v128_t *y); 
+
+void
+v128_complement(v128_t *x);
+
+int
+v128_get_bit(const v128_t *x, int i);
+
+void
+v128_set_bit(v128_t *x, int i) ;     
+
+void
+v128_clear_bit(v128_t *x, int i);    
+
+void
+v128_set_bit_to(v128_t *x, int i, int y);
+
+#endif /* DATATYPES_USE_MACROS */
+
+/*
+ * octet_string_is_eq(a,b, len) returns 1 if the length len strings a
+ * and b are not equal, returns 0 otherwise
+ */
+
+int
+octet_string_is_eq(uint8_t *a, uint8_t *b, int len);
+
+void
+octet_string_set_to_zero(uint8_t *s, int len);
+
+
+#endif /* MATH_H */
+
+
+
diff --git a/netwerk/srtp/src/crypto/include/crypto_types.h b/netwerk/srtp/src/crypto/include/crypto_types.h
new file mode 100644
index 000000000..35317108c
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/crypto_types.h
@@ -0,0 +1,220 @@
+/*
+ * crypto_types.h
+ *
+ * constants for cipher types and auth func types
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef CRYPTO_TYPES_H
+#define CRYPTO_TYPES_H
+
+/**
+ * @defgroup Algos Cryptographic Algorithms
+ *
+ *
+ * This library provides several different cryptographic algorithms,
+ * each of which can be selected by using the cipher_type_id_t and
+ * auth_type_id_t.  These algorithms are documented below.
+ *
+ * Authentication functions that use the Universal Security Transform
+ * (UST) must be used in conjunction with a cipher other than the null
+ * cipher.  These functions require a per-message pseudorandom input
+ * that is generated by the cipher.
+ * 
+ * The identifiers STRONGHOLD_AUTH and STRONGHOLD_CIPHER identify the
+ * strongest available authentication function and cipher,
+ * respectively.  They are resolved at compile time to the strongest
+ * available algorithm.  The stronghold algorithms can serve as did
+ * the keep of a medieval fortification; they provide the strongest
+ * defense (or the last refuge).
+ * 
+ * @{
+ */
+
+/**
+ * @defgroup Ciphers Cipher Types
+ *
+ * @brief    Each cipher type is identified by an unsigned integer.  The
+ *           cipher types available in this edition of libSRTP are given 
+ *           by the #defines below.
+ *
+ * A cipher_type_id_t is an identifier for a cipher_type; only values
+ * given by the #defines above (or those present in the file
+ * crypto_types.h) should be used.
+ *
+ * The identifier STRONGHOLD_CIPHER indicates the strongest available
+ * cipher, allowing an application to choose the strongest available
+ * algorithm without any advance knowledge about the avaliable
+ * algorithms.
+ *
+ * @{
+ */
+
+/**
+ * @brief The null cipher performs no encryption.
+ *
+ * The NULL_CIPHER leaves its inputs unaltered, during both the 
+ * encryption and decryption operations.  This cipher can be chosen
+ * to indicate that no encryption is to be performed.
+ */
+#define NULL_CIPHER        0            
+
+/** 
+ * @brief AES Integer Counter Mode (AES ICM)             
+ *
+ * AES ICM is the variant of counter mode that is used by Secure RTP.  
+ * This cipher uses a 16-, 24-, or 32-octet key concatenated with a
+ * 14-octet offset (or salt) value.
+ */
+#define AES_ICM            1            
+
+/** 
+ * @brief AES-128 Integer Counter Mode (AES ICM)             
+ * AES-128 ICM is a deprecated alternate name for AES ICM.
+ */
+#define AES_128_ICM        AES_ICM
+
+/**
+ * @brief SEAL 3.0 
+ * 
+ * SEAL is the Software-Optimized Encryption Algorithm of Coppersmith
+ * and Rogaway.  Nota bene: this cipher is IBM proprietary.
+ */
+#define SEAL               2            
+
+/** 
+ * @brief AES Cipher Block Chaining mode (AES CBC)             
+ *
+ * AES CBC is the AES Cipher Block Chaining mode.
+ * This cipher uses a 16-, 24-, or 32-octet key.
+ */
+#define AES_CBC            3            
+
+/** 
+ * @brief AES-128 Cipher Block Chaining mode (AES CBC)             
+ *
+ * AES-128 CBC is a deprecated alternate name for AES CBC.
+ */
+#define AES_128_CBC        AES_CBC            
+
+/**
+ * @brief Strongest available cipher.
+ *
+ * This identifier resolves to the strongest cipher type available.
+ */
+#define STRONGHOLD_CIPHER  AES_ICM  
+
+/**
+ * @}
+ */
+
+
+
+/**
+ * @defgroup Authentication Authentication Function Types
+ * 
+ * @brief Each authentication function type is identified by an
+ * unsigned integer.  The authentication function types available in
+ * this edition of libSRTP are given by the #defines below.
+ *
+ * An auth_type_id_t is an identifier for an authentication function type;
+ * only values given by the #defines above (or those present in the 
+ * file crypto_types.h) should be used.  
+ *
+ * The identifier STRONGHOLD_AUTH indicates the strongest available
+ * authentication function, allowing an application to choose the
+ * strongest available algorithm without any advance knowledge about
+ * the avaliable algorithms.  The stronghold algorithms can serve as
+ * did the keep of a medieval fortification; they provide the
+ * strongest defense (or the last refuge).
+ *
+ * @{
+ */
+
+/**
+ * @brief The null authentication function performs no authentication.
+ *
+ * The NULL_AUTH function does nothing, and can be selected to indicate
+ * that authentication should not be performed.
+ */ 
+#define NULL_AUTH          0           
+
+/**
+ * @brief UST with TMMH Version 2
+ *
+ * UST_TMMHv2 implements the Truncated Multi-Modular Hash using
+ * UST.  This function must be used in conjunction with a cipher other
+ * than the null cipher.
+ * with a cipher.
+ */
+#define UST_TMMHv2         1           
+
+/**
+ * @brief (UST) AES-128 XORMAC  
+ *
+ * UST_AES_128_XMAC implements AES-128 XORMAC, using UST. Nota bene:
+ * the XORMAC algorithm is IBM proprietary.
+ */
+#define UST_AES_128_XMAC   2           
+
+/**
+ * @brief HMAC-SHA1
+ *
+ * HMAC_SHA1 implements the Hash-based MAC using the NIST Secure
+ * Hash Algorithm version 1 (SHA1).
+ */
+#define HMAC_SHA1          3          
+
+/**
+ * @brief Strongest available authentication function.
+ *
+ * This identifier resolves to the strongest available authentication
+ * function.
+ */
+#define STRONGHOLD_AUTH    HMAC_SHA1   
+
+/**
+ * @}
+ */
+/**
+ * @}
+ */
+
+#endif  /* CRYPTO_TYPES_H */
diff --git a/netwerk/srtp/src/crypto/include/cryptoalg.h b/netwerk/srtp/src/crypto/include/cryptoalg.h
new file mode 100644
index 000000000..d9f0441e0
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/cryptoalg.h
@@ -0,0 +1,133 @@
+/*
+ * cryptoalg.h
+ *
+ * API for authenticated encryption crypto algorithms
+ * 
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef CRYPTOALG_H
+#define CRYPTOALG_H
+
+#include "err.h"
+
+/**
+ * @defgroup Crypto Cryptography
+ *
+ * Zed uses a simple interface to a cryptographic transform.
+ *
+ * @{
+ */
+
+/**
+ * @brief applies a crypto algorithm
+ *
+ * The function pointer cryptoalg_func_t points to a function that
+ * implements a crypto transform, and provides a uniform API for
+ * accessing crypto mechanisms.
+ * 
+ * @param key       location of secret key                  
+ *
+ * @param clear     data to be authenticated but not encrypted           
+ *
+ * @param clear_len length of data to be authenticated but not encrypted
+ *
+ * @param iv        location to write the Initialization Vector (IV)
+ *
+ * @param protect   location of the data to be encrypted and
+ * authenticated (before the function call), and the ciphertext
+ * and authentication tag (after the call)
+ *
+ * @param protected_len location of the length of the data to be
+ * encrypted and authenticated (before the function call), and the
+ * length of the ciphertext (after the call)
+ *
+ */
+                    
+typedef err_status_t (*cryptoalg_func_t) 
+     (void *key,            
+      const void *clear,          
+      unsigned clear_len,   
+      void *iv,             
+      void *protect,         
+      unsigned *protected_len);
+
+typedef 
+err_status_t (*cryptoalg_inv_t)
+     (void *key,            /* location of secret key                  */
+      const void *clear,     /* data to be authenticated only           */
+      unsigned clear_len,   /* length of data to be authenticated only */
+      void *iv,             /* location of iv                          */
+      void *opaque,         /* data to be decrypted and authenticated  */
+      unsigned *opaque_len  /* location of the length of data to be
+			     * decrypted and authd (before and after) 
+			     */
+      );
+
+typedef struct cryptoalg_ctx_t {
+  cryptoalg_func_t enc;
+  cryptoalg_inv_t  dec;
+  unsigned key_len;
+  unsigned iv_len;
+  unsigned auth_tag_len;
+  unsigned max_expansion; 
+} cryptoalg_ctx_t;
+
+typedef cryptoalg_ctx_t *cryptoalg_t;
+
+#define cryptoalg_get_key_len(cryptoalg) ((cryptoalg)->key_len)
+
+#define cryptoalg_get_iv_len(cryptoalg) ((cryptoalg)->iv_len)
+
+#define cryptoalg_get_auth_tag_len(cryptoalg) ((cryptoalg)->auth_tag_len)
+
+int
+cryptoalg_get_id(cryptoalg_t c);
+
+cryptoalg_t 
+cryptoalg_find_by_id(int id);
+
+
+/**
+ * @}
+ */
+
+#endif /* CRYPTOALG_H */
+
+
diff --git a/netwerk/srtp/src/crypto/include/datatypes.h b/netwerk/srtp/src/crypto/include/datatypes.h
new file mode 100644
index 000000000..803d75a3d
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/datatypes.h
@@ -0,0 +1,508 @@
+/*
+ * datatypes.h
+ * 
+ * data types for bit vectors and finite fields
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef _DATATYPES_H
+#define _DATATYPES_H
+
+#include "integers.h"           /* definitions of uint32_t, et cetera   */
+#include "alloc.h"
+
+#include <stdarg.h>
+
+#ifndef SRTP_KERNEL
+# include <stdio.h>
+# include <string.h>
+# include <time.h>
+# ifdef HAVE_NETINET_IN_H
+#  include <netinet/in.h>
+# elif defined HAVE_WINSOCK2_H
+#  include <winsock2.h>
+# endif
+#endif
+
+
+/* if DATATYPES_USE_MACROS is defined, then little functions are macros */
+#define DATATYPES_USE_MACROS  
+
+typedef union {
+  uint8_t  v8[2];
+  uint16_t value;
+} v16_t;
+
+typedef union {
+  uint8_t  v8[4];
+  uint16_t v16[2];
+  uint32_t value;
+} v32_t;
+
+typedef union {
+  uint8_t  v8[8];
+  uint16_t v16[4];
+  uint32_t v32[2];
+  uint64_t value;
+} v64_t;
+
+typedef union {
+  uint8_t  v8[16];
+  uint16_t v16[8];
+  uint32_t v32[4];
+  uint64_t v64[2];
+} v128_t;
+
+
+
+/* some useful and simple math functions */
+
+#define pow_2(X) ( (unsigned int)1 << (X) )   /* 2^X     */
+
+#define pow_minus_one(X) ( (X) ? -1 : 1 )      /* (-1)^X  */
+
+
+/*
+ * octet_get_weight(x) returns the hamming weight (number of bits equal to
+ * one) in the octet x
+ */
+
+int
+octet_get_weight(uint8_t octet);
+
+char *
+octet_bit_string(uint8_t x);
+
+#define MAX_PRINT_STRING_LEN 1024
+
+char *
+octet_string_hex_string(const void *str, int length);
+
+char *
+v128_bit_string(v128_t *x);
+
+char *
+v128_hex_string(v128_t *x);
+
+uint8_t
+nibble_to_hex_char(uint8_t nibble);
+
+char *
+char_to_hex_string(char *x, int num_char);
+
+uint8_t
+hex_string_to_octet(char *s);
+
+/*
+ * hex_string_to_octet_string(raw, hex, len) converts the hexadecimal
+ * string at *hex (of length len octets) to the equivalent raw data
+ * and writes it to *raw.
+ *
+ * if a character in the hex string that is not a hexadeciaml digit
+ * (0123456789abcdefABCDEF) is encountered, the function stops writing
+ * data to *raw
+ *
+ * the number of hex digits copied (which is two times the number of
+ * octets in *raw) is returned
+ */
+
+int
+hex_string_to_octet_string(char *raw, char *hex, int len);
+
+v128_t
+hex_string_to_v128(char *s);
+
+void
+v128_copy_octet_string(v128_t *x, const uint8_t s[16]);
+
+void
+v128_left_shift(v128_t *x, int shift_index);
+
+void
+v128_right_shift(v128_t *x, int shift_index);
+
+/*
+ * the following macros define the data manipulation functions
+ * 
+ * If DATATYPES_USE_MACROS is defined, then these macros are used
+ * directly (and function call overhead is avoided).  Otherwise,
+ * the macros are used through the functions defined in datatypes.c
+ * (and the compiler provides better warnings).
+ */
+
+#define _v128_set_to_zero(x)     \
+(                               \
+  (x)->v32[0] = 0,              \
+  (x)->v32[1] = 0,              \
+  (x)->v32[2] = 0,              \
+  (x)->v32[3] = 0               \
+)
+
+#define _v128_copy(x, y)          \
+(                                \
+  (x)->v32[0] = (y)->v32[0],     \
+  (x)->v32[1] = (y)->v32[1],     \
+  (x)->v32[2] = (y)->v32[2],     \
+  (x)->v32[3] = (y)->v32[3]      \
+)
+
+#define _v128_xor(z, x, y)                       \
+(                                               \
+   (z)->v32[0] = (x)->v32[0] ^ (y)->v32[0],     \
+   (z)->v32[1] = (x)->v32[1] ^ (y)->v32[1],     \
+   (z)->v32[2] = (x)->v32[2] ^ (y)->v32[2],     \
+   (z)->v32[3] = (x)->v32[3] ^ (y)->v32[3]      \
+)
+
+#define _v128_and(z, x, y)                       \
+(                                               \
+   (z)->v32[0] = (x)->v32[0] & (y)->v32[0],     \
+   (z)->v32[1] = (x)->v32[1] & (y)->v32[1],     \
+   (z)->v32[2] = (x)->v32[2] & (y)->v32[2],     \
+   (z)->v32[3] = (x)->v32[3] & (y)->v32[3]      \
+)
+
+#define _v128_or(z, x, y)                        \
+(                                               \
+   (z)->v32[0] = (x)->v32[0] | (y)->v32[0],     \
+   (z)->v32[1] = (x)->v32[1] | (y)->v32[1],     \
+   (z)->v32[2] = (x)->v32[2] | (y)->v32[2],     \
+   (z)->v32[3] = (x)->v32[3] | (y)->v32[3]      \
+)
+
+#define _v128_complement(x)        \
+(                                  \
+   (x)->v32[0] = ~(x)->v32[0],     \
+   (x)->v32[1] = ~(x)->v32[1],     \
+   (x)->v32[2] = ~(x)->v32[2],     \
+   (x)->v32[3] = ~(x)->v32[3]      \
+)
+
+/* ok for NO_64BIT_MATH if it can compare uint64_t's (even as structures) */
+#define _v128_is_eq(x, y)                                        \
+  (((x)->v64[0] == (y)->v64[0]) && ((x)->v64[1] == (y)->v64[1]))
+
+
+#ifdef NO_64BIT_MATH
+#define _v128_xor_eq(z, x)         \
+(                                  \
+   (z)->v32[0] ^= (x)->v32[0],     \
+   (z)->v32[1] ^= (x)->v32[1],     \
+   (z)->v32[2] ^= (x)->v32[2],     \
+   (z)->v32[3] ^= (x)->v32[3]      \
+)
+#else
+#define _v128_xor_eq(z, x)         \
+(                                  \
+   (z)->v64[0] ^= (x)->v64[0],     \
+   (z)->v64[1] ^= (x)->v64[1]      \
+)
+#endif
+
+/* NOTE!  This assumes an odd ordering! */
+/* This will not be compatible directly with math on some processors */
+/* bit 0 is first 32-bit word, low order bit. in little-endian, that's
+   the first byte of the first 32-bit word.  In big-endian, that's
+   the 3rd byte of the first 32-bit word */
+/* The get/set bit code is used by the replay code ONLY, and it doesn't
+   really care which bit is which.  AES does care which bit is which, but
+   doesn't use the 128-bit get/set or 128-bit shifts  */
+
+#define _v128_get_bit(x, bit)                     \
+(                                                 \
+  ((((x)->v32[(bit) >> 5]) >> ((bit) & 31)) & 1)  \
+)
+
+#define _v128_set_bit(x, bit)                                    \
+(                                                                \
+  (((x)->v32[(bit) >> 5]) |= ((uint32_t)1 << ((bit) & 31))) \
+)
+
+#define _v128_clear_bit(x, bit)                                   \
+(                                                                 \
+  (((x)->v32[(bit) >> 5]) &= ~((uint32_t)1 << ((bit) & 31))) \
+)
+
+#define _v128_set_bit_to(x, bit, value)   \
+(                                         \
+   (value) ? _v128_set_bit(x, bit) :      \
+             _v128_clear_bit(x, bit)      \
+)
+
+
+#if 0
+/* nothing uses this */
+#ifdef WORDS_BIGENDIAN
+
+#define _v128_add(z, x, y) {                    \
+  uint64_t tmp;					\
+    						\
+  tmp = x->v32[3] + y->v32[3];                  \
+  z->v32[3] = (uint32_t) tmp;			\
+  						\
+  tmp =  x->v32[2] + y->v32[2] + (tmp >> 32);	\
+  z->v32[2] = (uint32_t) tmp;                   \
+						\
+  tmp =  x->v32[1] + y->v32[1] + (tmp >> 32);	\
+  z->v32[1] = (uint32_t) tmp;			\
+                                                \
+  tmp =  x->v32[0] + y->v32[0] + (tmp >> 32);	\
+  z->v32[0] = (uint32_t) tmp;			\
+}
+
+#else /* assume little endian architecture */
+
+#define _v128_add(z, x, y) {                    \
+  uint64_t tmp;					\
+						\
+  tmp = htonl(x->v32[3]) + htonl(y->v32[3]);	\
+  z->v32[3] = ntohl((uint32_t) tmp);		\
+  						\
+  tmp =  htonl(x->v32[2]) + htonl(y->v32[2])	\
+       + htonl(tmp >> 32);			\
+  z->v32[2] = ntohl((uint32_t) tmp);		\
+                                                \
+  tmp =  htonl(x->v32[1]) + htonl(y->v32[1])	\
+       + htonl(tmp >> 32);			\
+  z->v32[1] = ntohl((uint32_t) tmp);		\
+  						\
+  tmp =  htonl(x->v32[0]) + htonl(y->v32[0])	\
+       + htonl(tmp >> 32);			\
+  z->v32[0] = ntohl((uint32_t) tmp);		\
+}
+#endif /* WORDS_BIGENDIAN */                      
+#endif /* 0 */
+
+
+#ifdef DATATYPES_USE_MACROS  /* little functions are really macros */
+   
+#define v128_set_to_zero(z)       _v128_set_to_zero(z)
+#define v128_copy(z, x)           _v128_copy(z, x)
+#define v128_xor(z, x, y)         _v128_xor(z, x, y)
+#define v128_and(z, x, y)         _v128_and(z, x, y)
+#define v128_or(z, x, y)          _v128_or(z, x, y)
+#define v128_complement(x)        _v128_complement(x) 
+#define v128_is_eq(x, y)          _v128_is_eq(x, y)
+#define v128_xor_eq(x, y)         _v128_xor_eq(x, y)
+#define v128_get_bit(x, i)        _v128_get_bit(x, i)
+#define v128_set_bit(x, i)        _v128_set_bit(x, i)
+#define v128_clear_bit(x, i)      _v128_clear_bit(x, i)
+#define v128_set_bit_to(x, i, y)  _v128_set_bit_to(x, i, y)
+
+#else
+
+void
+v128_set_to_zero(v128_t *x);
+
+int
+v128_is_eq(const v128_t *x, const v128_t *y);
+
+void
+v128_copy(v128_t *x, const v128_t *y);
+
+void
+v128_xor(v128_t *z, v128_t *x, v128_t *y);
+
+void
+v128_and(v128_t *z, v128_t *x, v128_t *y);
+
+void
+v128_or(v128_t *z, v128_t *x, v128_t *y); 
+
+void
+v128_complement(v128_t *x);
+
+int
+v128_get_bit(const v128_t *x, int i);
+
+void
+v128_set_bit(v128_t *x, int i) ;     
+
+void
+v128_clear_bit(v128_t *x, int i);    
+
+void
+v128_set_bit_to(v128_t *x, int i, int y);
+
+#endif /* DATATYPES_USE_MACROS */
+
+/*
+ * octet_string_is_eq(a,b, len) returns 1 if the length len strings a
+ * and b are not equal, returns 0 otherwise
+ */
+
+int
+octet_string_is_eq(uint8_t *a, uint8_t *b, int len);
+
+void
+octet_string_set_to_zero(uint8_t *s, int len);
+
+
+#ifndef SRTP_KERNEL_LINUX
+
+/* 
+ * Convert big endian integers to CPU byte order.
+ */
+#ifdef WORDS_BIGENDIAN
+/* Nothing to do. */
+# define be32_to_cpu(x)	(x)
+# define be64_to_cpu(x)	(x)
+#elif defined(HAVE_BYTESWAP_H)
+/* We have (hopefully) optimized versions in byteswap.h */
+# include <byteswap.h>
+# define be32_to_cpu(x)	bswap_32((x))
+# define be64_to_cpu(x)	bswap_64((x))
+#else
+
+#if defined(__GNUC__) && defined(HAVE_X86)
+/* Fall back. */
+static inline uint32_t be32_to_cpu(uint32_t v) {
+   /* optimized for x86. */
+   asm("bswap %0" : "=r" (v) : "0" (v));
+   return v;
+}
+# else /* HAVE_X86 */
+#  ifdef HAVE_NETINET_IN_H
+#   include <netinet/in.h>
+#  elif defined HAVE_WINSOCK2_H
+#   include <winsock2.h>
+#  else
+#    error "Platform not recognized"
+#  endif
+#  define be32_to_cpu(x)	ntohl((x))
+# endif /* HAVE_X86 */
+
+static inline uint64_t be64_to_cpu(uint64_t v) {
+# ifdef NO_64BIT_MATH
+   /* use the make64 functions to do 64-bit math */
+   v = make64(htonl(low32(v)),htonl(high32(v)));
+# else
+   /* use the native 64-bit math */
+   v= (uint64_t)((be32_to_cpu((uint32_t)(v >> 32))) | (((uint64_t)be32_to_cpu((uint32_t)v)) << 32));
+# endif
+   return v;
+}
+
+#endif /* ! SRTP_KERNEL_LINUX */
+
+#endif /* WORDS_BIGENDIAN */
+
+/*
+ * functions manipulating bitvector_t 
+ *
+ * A bitvector_t consists of an array of words and an integer
+ * representing the number of significant bits stored in the array.
+ * The bits are packed as follows: the least significant bit is that
+ * of word[0], while the most significant bit is the nth most
+ * significant bit of word[m], where length = bits_per_word * m + n.
+ * 
+ */
+
+#define bits_per_word  32
+#define bytes_per_word 4
+
+typedef struct {
+  uint32_t length;   
+  uint32_t *word;
+} bitvector_t;
+
+
+#define _bitvector_get_bit(v, bit_index)				\
+(									\
+ ((((v)->word[((bit_index) >> 5)]) >> ((bit_index) & 31)) & 1)		\
+)
+
+
+#define _bitvector_set_bit(v, bit_index)				\
+(									\
+ (((v)->word[((bit_index) >> 5)] |= ((uint32_t)1 << ((bit_index) & 31)))) \
+)
+
+#define _bitvector_clear_bit(v, bit_index)				\
+(									\
+ (((v)->word[((bit_index) >> 5)] &= ~((uint32_t)1 << ((bit_index) & 31)))) \
+)
+
+#define _bitvector_get_length(v)					\
+(									\
+ ((v)->length)								\
+)
+
+#ifdef DATATYPES_USE_MACROS  /* little functions are really macros */
+
+#define bitvector_get_bit(v, bit_index) _bitvector_get_bit(v, bit_index)
+#define bitvector_set_bit(v, bit_index) _bitvector_set_bit(v, bit_index)
+#define bitvector_clear_bit(v, bit_index) _bitvector_clear_bit(v, bit_index)
+#define bitvector_get_length(v) _bitvector_get_length(v)
+
+#else
+
+int
+bitvector_get_bit(const bitvector_t *v, int bit_index);
+
+void
+bitvector_set_bit(bitvector_t *v, int bit_index);
+
+void
+bitvector_clear_bit(bitvector_t *v, int bit_index);
+
+unsigned long
+bitvector_get_length(const bitvector_t *v);
+
+#endif
+
+int
+bitvector_alloc(bitvector_t *v, unsigned long length);
+
+void
+bitvector_dealloc(bitvector_t *v);
+
+void
+bitvector_set_to_zero(bitvector_t *x);
+
+void
+bitvector_left_shift(bitvector_t *x, int index);
+
+char *
+bitvector_bit_string(bitvector_t *x, char* buf, int len);
+
+#endif /* _DATATYPES_H */
diff --git a/netwerk/srtp/src/crypto/include/err.h b/netwerk/srtp/src/crypto/include/err.h
new file mode 100644
index 000000000..1a6e17018
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/err.h
@@ -0,0 +1,174 @@
+/*
+ * err.h
+ * 
+ * error status codes
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef ERR_H
+#define ERR_H
+
+#include "datatypes.h"
+
+/**
+ * @defgroup Error Error Codes
+ * 
+ * Error status codes are represented by the enumeration err_status_t.
+ * 
+ * @{
+ */
+
+
+/*
+ * @brief err_status_t defines error codes.
+ *
+ * The enumeration err_status_t defines error codes.  Note that the
+ * value of err_status_ok is equal to zero, which can simplify error
+ * checking somewhat.
+ *
+ */
+typedef enum {
+  err_status_ok           = 0,  /**< nothing to report                       */
+  err_status_fail         = 1,  /**< unspecified failure                     */
+  err_status_bad_param    = 2,  /**< unsupported parameter                   */
+  err_status_alloc_fail   = 3,  /**< couldn't allocate memory                */
+  err_status_dealloc_fail = 4,  /**< couldn't deallocate properly            */
+  err_status_init_fail    = 5,  /**< couldn't initialize                     */
+  err_status_terminus     = 6,  /**< can't process as much data as requested */
+  err_status_auth_fail    = 7,  /**< authentication failure                  */
+  err_status_cipher_fail  = 8,  /**< cipher failure                          */
+  err_status_replay_fail  = 9,  /**< replay check failed (bad index)         */
+  err_status_replay_old   = 10, /**< replay check failed (index too old)     */
+  err_status_algo_fail    = 11, /**< algorithm failed test routine           */
+  err_status_no_such_op   = 12, /**< unsupported operation                   */
+  err_status_no_ctx       = 13, /**< no appropriate context found            */
+  err_status_cant_check   = 14, /**< unable to perform desired validation    */
+  err_status_key_expired  = 15, /**< can't use key any more                  */
+  err_status_socket_err   = 16, /**< error in use of socket                  */
+  err_status_signal_err   = 17, /**< error in use POSIX signals              */
+  err_status_nonce_bad    = 18, /**< nonce check failed                      */
+  err_status_read_fail    = 19, /**< couldn't read data                      */
+  err_status_write_fail   = 20, /**< couldn't write data                     */
+  err_status_parse_err    = 21, /**< error pasring data                      */
+  err_status_encode_err   = 22, /**< error encoding data                     */
+  err_status_semaphore_err = 23,/**< error while using semaphores            */
+  err_status_pfkey_err    = 24  /**< error while using pfkey                 */
+} err_status_t;
+
+/**
+ * @}
+ */
+
+typedef enum {
+  err_level_emergency = 0,
+  err_level_alert,
+  err_level_critical,
+  err_level_error,
+  err_level_warning,
+  err_level_notice,
+  err_level_info,
+  err_level_debug,
+  err_level_none
+} err_reporting_level_t;
+
+/*
+ * err_reporting_init prepares the error system.  If
+ * ERR_REPORTING_SYSLOG is defined, it will open syslog.
+ *
+ * The ident argument is a string that will be prepended to
+ * all syslog messages.  It is conventionally argv[0].
+ */
+
+err_status_t
+err_reporting_init(char *ident);
+
+#ifdef SRTP_KERNEL_LINUX
+extern err_reporting_level_t err_level;
+#else
+
+/*
+ * keydaemon_report_error reports a 'printf' formatted error
+ * string, followed by a an arg list.  The priority argument
+ * is equivalent to that defined for syslog.
+ *
+ * Errors will be reported to ERR_REPORTING_FILE, if defined, and to
+ * syslog, if ERR_REPORTING_SYSLOG is defined.
+ *
+ */
+
+void
+err_report(int priority, char *format, ...);
+#endif /* ! SRTP_KERNEL_LINUX */
+
+
+/*
+ * debug_module_t defines a debug module
+ */
+
+typedef struct {
+  int   on;          /* 1 if debugging is on, 0 if it is off */
+  char *name;        /* printable name for debug module      */
+} debug_module_t;
+
+#ifdef ENABLE_DEBUGGING
+
+#define debug_on(mod)  (mod).on = 1
+
+#define debug_off(mod) (mod).on = 0
+
+/* use err_report() to report debug message */
+#define debug_print(mod, format, arg)                  \
+  if (mod.on) err_report(err_level_debug, ("%s: " format "\n"), mod.name, arg)
+#define debug_print2(mod, format, arg1,arg2)                  \
+  if (mod.on) err_report(err_level_debug, ("%s: " format "\n"), mod.name, arg1,arg2)
+
+#else
+
+/* define macros to do nothing */
+#define debug_print(mod, format, arg)
+
+#define debug_on(mod)
+
+#define debug_off(mod)
+
+#endif
+
+#endif /* ERR_H */
diff --git a/netwerk/srtp/src/crypto/include/hmac.h b/netwerk/srtp/src/crypto/include/hmac.h
new file mode 100644
index 000000000..262c0e2d6
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/hmac.h
@@ -0,0 +1,78 @@
+/*
+ * hmac.h
+ *
+ * interface to hmac auth_type_t
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ *
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef HMAC_H
+#define HMAC_H
+
+#include "auth.h"
+#include "sha1.h"
+
+typedef struct {
+  uint8_t    opad[64];
+  sha1_ctx_t ctx;
+  sha1_ctx_t init_ctx;
+} hmac_ctx_t;
+
+err_status_t
+hmac_alloc(auth_t **a, int key_len, int out_len);
+
+err_status_t
+hmac_dealloc(auth_t *a);
+
+err_status_t
+hmac_init(hmac_ctx_t *state, const uint8_t *key, int key_len);
+
+err_status_t
+hmac_start(hmac_ctx_t *state);
+
+err_status_t
+hmac_update(hmac_ctx_t *state, const uint8_t *message, int msg_octets);
+
+err_status_t
+hmac_compute(hmac_ctx_t *state, const void *message,
+	     int msg_octets, int tag_len, uint8_t *result);
+
+
+#endif /* HMAC_H */
diff --git a/netwerk/srtp/src/crypto/include/integers.h b/netwerk/srtp/src/crypto/include/integers.h
new file mode 100644
index 000000000..3d7589ebc
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/integers.h
@@ -0,0 +1,155 @@
+/*
+ * integers.h
+ *
+ * defines integer types (or refers to their definitions)
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef INTEGERS_H
+#define INTEGERS_H
+
+#include "config.h"	/* configuration file, using autoconf          */
+
+#ifdef SRTP_KERNEL
+
+#include "kernel_compat.h"
+
+#else /* SRTP_KERNEL */
+
+/* use standard integer definitions, if they're available  */
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#ifdef INTEGER_TYPES_H
+/* Let configure tell us where to get the equivalent to <stdint.h> */
+#include INTEGER_TYPES_H
+
+#if !defined(HAVE_UINT64_T)
+#define NO_64BIT_MATH 1
+#endif
+#else
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#endif /* INTEGER_TYPES_H */
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_INT_TYPES_H
+# include <sys/int_types.h>    /* this exists on Sun OS */
+#endif
+#ifdef HAVE_MACHINE_TYPES_H
+# include <machine/types.h>
+#endif
+
+/* Can we do 64 bit integers? */
+#if !defined(HAVE_UINT64_T)
+# if SIZEOF_UNSIGNED_LONG == 8
+typedef unsigned long		uint64_t;
+# elif SIZEOF_UNSIGNED_LONG_LONG == 8
+typedef unsigned long long	uint64_t;
+# else
+#  define NO_64BIT_MATH 1
+# endif
+#endif
+
+/* Reasonable defaults for 32 bit machines - you may need to
+ * edit these definitions for your own machine. */
+#ifndef HAVE_UINT8_T
+typedef unsigned char		uint8_t;
+#endif
+#ifndef HAVE_UINT16_T
+typedef unsigned short int	uint16_t;
+#endif
+#ifndef HAVE_UINT32_T
+typedef unsigned int		uint32_t;
+#endif
+
+#ifdef NO_64BIT_MATH
+typedef double uint64_t;
+/* assert that sizeof(double) == 8 */
+extern uint64_t make64(uint32_t high, uint32_t low);
+extern uint32_t high32(uint64_t value);
+extern uint32_t low32(uint64_t value);
+#endif
+
+#endif /* SRTP_KERNEL */
+
+/* These macros are to load and store 32-bit values from un-aligned
+   addresses.  This is required for processors that do not allow unaligned
+   loads. */
+#ifdef ALIGNMENT_32BIT_REQUIRED
+/* Note that if it's in a variable, you can memcpy it */
+#ifdef WORDS_BIGENDIAN
+#define PUT_32(addr,value) \
+    { \
+        ((unsigned char *) (addr))[0] = (value >> 24); \
+        ((unsigned char *) (addr))[1] = (value >> 16) & 0xff; \
+        ((unsigned char *) (addr))[2] = (value >> 8) & 0xff; \
+        ((unsigned char *) (addr))[3] = (value)      & 0xff; \
+    }
+#define GET_32(addr) ((((unsigned char *) (addr))[0] << 24) |  \
+                      (((unsigned char *) (addr))[1] << 16) |  \
+                      (((unsigned char *) (addr))[2] << 8)  |  \
+                      (((unsigned char *) (addr))[3])) 
+#else
+#define PUT_32(addr,value) \
+    { \
+        ((unsigned char *) (addr))[3] = (value >> 24); \
+        ((unsigned char *) (addr))[2] = (value >> 16) & 0xff; \
+        ((unsigned char *) (addr))[1] = (value >> 8) & 0xff; \
+        ((unsigned char *) (addr))[0] = (value)      & 0xff; \
+    }
+#define GET_32(addr) ((((unsigned char *) (addr))[3] << 24) |  \
+                      (((unsigned char *) (addr))[2] << 16) |  \
+                      (((unsigned char *) (addr))[1] << 8)  |  \
+                      (((unsigned char *) (addr))[0])) 
+#endif // WORDS_BIGENDIAN
+#else
+#define PUT_32(addr,value) *(((uint32_t *) (addr)) = (value)
+#define GET_32(addr) (*(((uint32_t *) (addr)))
+#endif
+
+#endif /* INTEGERS_H */
diff --git a/netwerk/srtp/src/crypto/include/kernel_compat.h b/netwerk/srtp/src/crypto/include/kernel_compat.h
new file mode 100644
index 000000000..59d1898e1
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/kernel_compat.h
@@ -0,0 +1,84 @@
+/*
+ * kernel_compat.h
+ * 
+ * Compatibility stuff for building in kernel context where standard
+ * C headers and library are not available.
+ *
+ * Marcus Sundberg
+ * Ingate Systems AB
+ */
+/*
+ *	
+ * Copyright(c) 2005 Ingate Systems AB
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the author(s) nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef KERNEL_COMPAT_H
+#define KERNEL_COMPAT_H
+
+#ifdef SRTP_KERNEL_LINUX
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/random.h>
+#include <linux/byteorder/generic.h>
+
+
+#define err_report(priority, ...) \
+  do {\
+    if (priority <= err_level) {\
+       printk(__VA_ARGS__);\
+    }\
+  }while(0)
+
+#define clock()	(jiffies)
+#define time(x)	(jiffies)
+
+/* rand() implementation. */
+#define RAND_MAX	32767
+
+static inline int rand(void)
+{
+	uint32_t temp;
+	get_random_bytes(&temp, sizeof(temp));
+	return temp % (RAND_MAX+1);
+}
+
+/* stdio/stdlib implementation. */
+#define printf(...)	printk(__VA_ARGS__)
+#define exit(n)	panic("%s:%d: exit(%d)\n", __FILE__, __LINE__, (n))
+
+#endif /* SRTP_KERNEL_LINUX */
+
+#endif /* KERNEL_COMPAT_H */
diff --git a/netwerk/srtp/src/crypto/include/key.h b/netwerk/srtp/src/crypto/include/key.h
new file mode 100644
index 000000000..e7e07448e
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/key.h
@@ -0,0 +1,82 @@
+/*
+ * key.h
+ *
+ * key usage limits enforcement
+ * 
+ * David A. Mcgrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef KEY_H
+#define KEY_H
+
+#include "rdbx.h"   /* for xtd_seq_num_t */
+#include "err.h"
+
+typedef struct key_limit_ctx_t *key_limit_t;
+
+typedef enum {
+   key_event_normal,
+   key_event_soft_limit,
+   key_event_hard_limit
+} key_event_t;
+
+err_status_t
+key_limit_set(key_limit_t key, const xtd_seq_num_t s);
+
+err_status_t
+key_limit_clone(key_limit_t original, key_limit_t *new_key);
+
+err_status_t
+key_limit_check(const key_limit_t key);
+
+key_event_t
+key_limit_update(key_limit_t key);
+
+typedef enum { 
+   key_state_normal,
+   key_state_past_soft_limit,
+   key_state_expired
+} key_state_t;
+
+typedef struct key_limit_ctx_t {
+  xtd_seq_num_t num_left;
+  key_state_t   state;
+} key_limit_ctx_t;
+
+#endif /* KEY_H */
diff --git a/netwerk/srtp/src/crypto/include/null_auth.h b/netwerk/srtp/src/crypto/include/null_auth.h
new file mode 100644
index 000000000..44f9a4a2b
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/null_auth.h
@@ -0,0 +1,68 @@
+/*
+ * null-auth.h
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ *
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef NULL_AUTH_H
+#define NULL_AUTH_H
+
+#include "auth.h"
+
+typedef struct {
+	char foo;
+} null_auth_ctx_t;
+
+err_status_t
+null_auth_alloc(auth_t **a, int key_len, int out_len);
+
+err_status_t
+null_auth_dealloc(auth_t *a);
+
+err_status_t
+null_auth_init(null_auth_ctx_t *state, const uint8_t *key, int key_len);
+
+err_status_t
+null_auth_compute (null_auth_ctx_t *state, uint8_t *message,
+		   int msg_octets, int tag_len, uint8_t *result);
+
+
+#endif /* NULL_AUTH_H */
diff --git a/netwerk/srtp/src/crypto/include/null_cipher.h b/netwerk/srtp/src/crypto/include/null_cipher.h
new file mode 100644
index 000000000..39da59a81
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/null_cipher.h
@@ -0,0 +1,80 @@
+/*
+ * null-cipher.h
+ *
+ * header file for the null cipher
+ *
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef NULL_CIPHER_H
+#define NULL_CIPHER_H
+
+#include "datatypes.h"
+#include "cipher.h"
+
+typedef struct {
+  char foo ;/* empty, for now */
+} null_cipher_ctx_t;
+
+
+/*
+ * none of these functions do anything (though future versions may keep
+ * track of bytes encrypted, number of instances, and/or other info).
+ */
+
+err_status_t
+null_cipher_init(null_cipher_ctx_t *c, const uint8_t *key, int key_len);
+
+err_status_t
+null_cipher_set_segment(null_cipher_ctx_t *c,
+			unsigned long segment_index);
+
+err_status_t
+null_cipher_encrypt(null_cipher_ctx_t *c,
+		    unsigned char *buf, unsigned int *bytes_to_encr);
+
+
+err_status_t
+null_cipher_encrypt_aligned(null_cipher_ctx_t *c,
+			    unsigned char *buf, int bytes_to_encr);
+
+#endif /* NULL_CIPHER_H */
diff --git a/netwerk/srtp/src/crypto/include/prng.h b/netwerk/srtp/src/crypto/include/prng.h
new file mode 100644
index 000000000..ad0a49c22
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/prng.h
@@ -0,0 +1,89 @@
+/*
+ * prng.h
+ *
+ * pseudorandom source
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef PRNG_H
+#define PRNG_H
+
+#include "rand_source.h"  /* for rand_source_func_t definition       */
+#include "aes.h"          /* for aes                                 */
+#include "aes_icm.h"      /* for aes ctr                             */
+
+#define MAX_PRNG_OUT_LEN 0xffffffffU
+
+/*
+ * x917_prng is an ANSI X9.17-like AES-based PRNG
+ */
+
+typedef struct {
+  v128_t   state;          /* state data                              */
+  aes_expanded_key_t key;  /* secret key                              */
+  uint32_t octet_count;    /* number of octets output since last init */
+  rand_source_func_t rand; /* random source for re-initialization     */
+} x917_prng_t;
+
+err_status_t
+x917_prng_init(rand_source_func_t random_source);
+
+err_status_t
+x917_prng_get_octet_string(uint8_t *dest, uint32_t len);
+
+
+/*
+ * ctr_prng is an AES-CTR based PRNG
+ */
+
+typedef struct {
+  uint32_t octet_count;    /* number of octets output since last init */
+  aes_icm_ctx_t   state;   /* state data                              */
+  rand_source_func_t rand; /* random source for re-initialization     */
+} ctr_prng_t;
+
+err_status_t
+ctr_prng_init(rand_source_func_t random_source);
+
+err_status_t
+ctr_prng_get_octet_string(void *dest, uint32_t len);
+
+
+#endif
diff --git a/netwerk/srtp/src/crypto/include/rand_source.h b/netwerk/srtp/src/crypto/include/rand_source.h
new file mode 100644
index 000000000..b4c21103a
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/rand_source.h
@@ -0,0 +1,91 @@
+/*
+ * rand_source.h
+ *
+ * implements a random source based on /dev/random
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef RAND_SOURCE
+#define RAND_SOURCE
+
+#include "err.h"
+#include "datatypes.h"
+
+err_status_t
+rand_source_init(void);
+
+/*
+ * rand_source_get_octet_string() writes a random octet string.
+ *
+ * The function call rand_source_get_octet_string(dest, len) writes
+ * len octets of random data to the location to which dest points,
+ * and returns an error code.  This error code should be checked,
+ * and if a failure is reported, the data in the buffer MUST NOT
+ * be used.
+ * 
+ * warning: If the return code is not checked, then non-random
+ *          data may inadvertently be used.
+ *
+ * returns:
+ *     - err_status_ok    if no problems occured.
+ *     - [other]          a problem occured, and no assumptions should
+ *                        be made about the contents of the destination
+ *                        buffer.
+ */
+
+err_status_t
+rand_source_get_octet_string(void *dest, uint32_t length);
+
+err_status_t
+rand_source_deinit(void);
+
+/* 
+ * function prototype for a random source function
+ *
+ * A rand_source_func_t writes num_octets at the location indicated by
+ * dest and returns err_status_ok.  Any other return value indicates
+ * failure.
+ */
+
+typedef err_status_t (*rand_source_func_t)
+     (void *dest, uint32_t num_octets);
+
+#endif /* RAND_SOURCE */
diff --git a/netwerk/srtp/src/crypto/include/rdb.h b/netwerk/srtp/src/crypto/include/rdb.h
new file mode 100644
index 000000000..07daec3d6
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/rdb.h
@@ -0,0 +1,129 @@
+/*
+ * replay-database.h
+ *
+ * interface for a replay database for packet security
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef REPLAY_DB_H
+#define REPLAY_DB_H
+
+#include "integers.h"         /* for uint32_t     */
+#include "datatypes.h"        /* for v128_t       */
+#include "err.h"              /* for err_status_t */
+
+/*
+ * if the ith least significant bit is one, then the packet index
+ * window_end-i is in the database
+ */
+
+typedef struct {
+  uint32_t window_start;   /* packet index of the first bit in bitmask */
+  v128_t bitmask;  
+} rdb_t;
+
+#define rdb_bits_in_bitmask (8*sizeof(v128_t))   
+
+/*
+ * rdb init
+ *
+ * initalizes rdb
+ *
+ * returns err_status_ok on success, err_status_t_fail otherwise
+ */
+
+err_status_t
+rdb_init(rdb_t *rdb);
+
+
+/*
+ * rdb_check
+ *
+ * checks to see if index appears in rdb
+ *
+ * returns err_status_fail if the index already appears in rdb,
+ * returns err_status_ok otherwise
+ */
+
+err_status_t
+rdb_check(const rdb_t *rdb, uint32_t rdb_index);  
+
+/*
+ * rdb_add_index
+ *
+ * adds index to rdb_t (and does *not* check if index appears in db)
+ *
+ * returns err_status_ok on success, err_status_fail otherwise
+ *
+ */
+
+err_status_t
+rdb_add_index(rdb_t *rdb, uint32_t rdb_index);
+
+/*
+ * the functions rdb_increment() and rdb_get_value() are for use by 
+ * senders, not receivers - DO NOT use these functions on the same
+ * rdb_t upon which rdb_add_index is used!
+ */
+
+
+/*
+ * rdb_increment(db) increments the sequence number in db, if it is 
+ * not too high
+ *
+ * return values:
+ * 
+ *    err_status_ok            no problem
+ *    err_status_key_expired   sequence number too high
+ *
+ */
+err_status_t
+rdb_increment(rdb_t *rdb);
+
+/*
+ * rdb_get_value(db) returns the current sequence number of db
+ */
+
+uint32_t
+rdb_get_value(const rdb_t *rdb);
+
+
+#endif /* REPLAY_DB_H */ 
diff --git a/netwerk/srtp/src/crypto/include/rdbx.h b/netwerk/srtp/src/crypto/include/rdbx.h
new file mode 100644
index 000000000..7b201e29b
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/rdbx.h
@@ -0,0 +1,221 @@
+/*
+ * rdbx.h
+ *
+ * replay database with extended packet indices, using a rollover counter
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ *
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef RDBX_H
+#define RDBX_H
+
+#include "datatypes.h"
+#include "err.h"
+
+/* #define ROC_TEST */  
+
+#ifndef ROC_TEST
+
+typedef uint16_t sequence_number_t;   /* 16 bit sequence number  */
+typedef uint32_t rollover_counter_t;   /* 32 bit rollover counter */
+
+#else  /* use small seq_num and roc datatypes for testing purposes */
+
+typedef unsigned char sequence_number_t;         /* 8 bit sequence number   */
+typedef uint16_t rollover_counter_t;   /* 16 bit rollover counter */
+
+#endif
+
+#define seq_num_median (1 << (8*sizeof(sequence_number_t) - 1))
+#define seq_num_max    (1 << (8*sizeof(sequence_number_t)))
+
+/*
+ * An xtd_seq_num_t is a 64-bit unsigned integer used as an 'extended'
+ * sequence number.  
+ */
+
+typedef uint64_t xtd_seq_num_t;
+
+
+/*
+ * An rdbx_t is a replay database with extended range; it uses an
+ * xtd_seq_num_t and a bitmask of recently received indices.
+ */
+
+typedef struct {
+  xtd_seq_num_t index;
+  bitvector_t bitmask;
+} rdbx_t;
+
+
+/*
+ * rdbx_init(rdbx_ptr, ws)
+ *
+ * initializes the rdbx pointed to by its argument with the window size ws,
+ * setting the rollover counter and sequence number to zero
+ */
+
+err_status_t
+rdbx_init(rdbx_t *rdbx, unsigned long ws);
+
+
+/*
+ * rdbx_dealloc(rdbx_ptr)
+ *
+ * frees memory associated with the rdbx
+ */
+
+err_status_t
+rdbx_dealloc(rdbx_t *rdbx);
+
+
+/*
+ * rdbx_estimate_index(rdbx, guess, s)
+ * 
+ * given an rdbx and a sequence number s (from a newly arrived packet),
+ * sets the contents of *guess to contain the best guess of the packet
+ * index to which s corresponds, and returns the difference between
+ * *guess and the locally stored synch info
+ */
+
+int
+rdbx_estimate_index(const rdbx_t *rdbx,
+		    xtd_seq_num_t *guess,
+		    sequence_number_t s);
+
+/*
+ * rdbx_check(rdbx, delta);
+ *
+ * rdbx_check(&r, delta) checks to see if the xtd_seq_num_t
+ * which is at rdbx->window_start + delta is in the rdb
+ *
+ */
+
+err_status_t
+rdbx_check(const rdbx_t *rdbx, int difference);
+
+/*
+ * replay_add_index(rdbx, delta)
+ * 
+ * adds the xtd_seq_num_t at rdbx->window_start + delta to replay_db
+ * (and does *not* check if that xtd_seq_num_t appears in db)
+ *
+ * this function should be called *only* after replay_check has
+ * indicated that the index does not appear in the rdbx, and a mutex
+ * should protect the rdbx between these calls if necessary.
+ */
+
+err_status_t
+rdbx_add_index(rdbx_t *rdbx, int delta);
+
+
+/*
+ * rdbx_set_roc(rdbx, roc) initalizes the rdbx_t at the location rdbx
+ * to have the rollover counter value roc.  If that value is less than
+ * the current rollover counter value, then the function returns
+ * err_status_replay_old; otherwise, err_status_ok is returned.
+ * 
+ */
+
+err_status_t
+rdbx_set_roc(rdbx_t *rdbx, uint32_t roc);
+
+/*
+ * rdbx_get_roc(rdbx) returns the value of the rollover counter for
+ * the rdbx_t pointed to by rdbx
+ * 
+ */
+
+xtd_seq_num_t
+rdbx_get_packet_index(const rdbx_t *rdbx);
+
+/*
+ * xtd_seq_num_t functions - these are *internal* functions of rdbx, and
+ * shouldn't be used to manipulate rdbx internal values.  use the rdbx
+ * api instead!
+ */
+
+/*
+ * rdbx_get_ws(rdbx_ptr)
+ *
+ * gets the window size which was used to initialize the rdbx
+ */
+
+unsigned long
+rdbx_get_window_size(const rdbx_t *rdbx);
+
+
+/* index_init(&pi) initializes a packet index pi (sets it to zero) */
+
+void
+index_init(xtd_seq_num_t *pi);
+
+/* index_advance(&pi, s) advances a xtd_seq_num_t forward by s */
+
+void
+index_advance(xtd_seq_num_t *pi, sequence_number_t s);
+
+
+/*
+ * index_guess(local, guess, s)
+ * 
+ * given a xtd_seq_num_t local (which represents the highest
+ * known-to-be-good index) and a sequence number s (from a newly
+ * arrived packet), sets the contents of *guess to contain the best
+ * guess of the packet index to which s corresponds, and returns the
+ * difference between *guess and *local
+ */
+
+int
+index_guess(const xtd_seq_num_t *local,
+		   xtd_seq_num_t *guess,
+		   sequence_number_t s);
+
+
+#endif /* RDBX_H */
+
+
+
+
+
+
+
+
+
diff --git a/netwerk/srtp/src/crypto/include/sha1.h b/netwerk/srtp/src/crypto/include/sha1.h
new file mode 100644
index 000000000..e3af4d4b4
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/sha1.h
@@ -0,0 +1,108 @@
+/*
+ * sha1.h
+ *
+ * interface to the Secure Hash Algorithm v.1 (SHA-1), specified in
+ * FIPS 180-1
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef SHA1_H
+#define SHA1_H
+
+#include "err.h"
+#include "datatypes.h"
+
+typedef struct {
+  uint32_t H[5];             /* state vector                    */
+  uint32_t M[16];            /* message buffer                  */
+  int octets_in_buffer;      /* octets of message in buffer     */
+  uint32_t num_bits_in_msg;  /* total number of bits in message */
+} sha1_ctx_t;
+
+/*
+ * sha1(&ctx, msg, len, output) hashes the len octets starting at msg
+ * into the SHA1 context, then writes the result to the 20 octets at
+ * output
+ * 
+ */
+
+void
+sha1(const uint8_t *message,  int octets_in_msg, uint32_t output[5]);
+
+/*
+ * sha1_init(&ctx) initializes the SHA1 context ctx
+ * 
+ * sha1_update(&ctx, msg, len) hashes the len octets starting at msg
+ * into the SHA1 context
+ * 
+ * sha1_final(&ctx, output) performs the final processing of the SHA1
+ * context and writes the result to the 20 octets at output
+ *
+ */
+
+void
+sha1_init(sha1_ctx_t *ctx);
+
+void
+sha1_update(sha1_ctx_t *ctx, const uint8_t *M, int octets_in_msg);
+
+void
+sha1_final(sha1_ctx_t *ctx, uint32_t output[5]);
+
+/*
+ * The sha1_core function is INTERNAL to SHA-1, but it is declared
+ * here because it is also used by the cipher SEAL 3.0 in its key
+ * setup algorithm.  
+ */
+
+/*
+ *  sha1_core(M, H) computes the core sha1 compression function, where M is
+ *  the next part of the message and H is the intermediate state {H0,
+ *  H1, ...}
+ *
+ *  this function does not do any of the padding required in the
+ *  complete sha1 function
+ */
+
+void
+sha1_core(const uint32_t M[16], uint32_t hash_value[5]);
+     
+#endif /* SHA1_H */
diff --git a/netwerk/srtp/src/crypto/include/stat.h b/netwerk/srtp/src/crypto/include/stat.h
new file mode 100644
index 000000000..e28b1314a
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/stat.h
@@ -0,0 +1,69 @@
+/*
+ * stats.h
+ * 
+ * interface to statistical test functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright(c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef STAT_H
+#define STAT_H
+
+#include "datatypes.h"       /* for uint8_t                       */
+#include "err.h"             /* for err_status_t                  */
+#include "rand_source.h"     /* for rand_source_func_t definition */
+
+err_status_t
+stat_test_monobit(uint8_t *data);
+
+err_status_t
+stat_test_poker(uint8_t *data);
+
+err_status_t
+stat_test_runs(uint8_t *data);
+
+err_status_t
+stat_test_rand_source(rand_source_func_t rs);
+
+err_status_t
+stat_test_rand_source_with_repetition(rand_source_func_t source, unsigned num_trials);
+
+#endif /* STAT_H */
diff --git a/netwerk/srtp/src/crypto/include/xfm.h b/netwerk/srtp/src/crypto/include/xfm.h
new file mode 100644
index 000000000..b43b33bc3
--- /dev/null
+++ b/netwerk/srtp/src/crypto/include/xfm.h
@@ -0,0 +1,174 @@
+/*
+ * xfm.h
+ *
+ * interface for abstract crypto transform
+ * 
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef XFM_H
+#define XFM_H
+
+#include "crypto_kernel.h"
+#include "err.h"
+
+/**
+ * @defgroup Crypto Cryptography
+ *
+ * A simple interface to an abstract cryptographic transform that
+ * provides both confidentiality and message authentication.
+ *
+ * @{
+ */
+
+/**
+ * @brief applies a crypto transform
+ *
+ * The function pointer xfm_func_t points to a function that
+ * implements a crypto transform, and provides a uniform API for
+ * accessing crypto mechanisms.
+ * 
+ * @param key       location of secret key                  
+ *
+ * @param clear     data to be authenticated only           
+ *
+ * @param clear_len length of data to be authenticated only 
+ *
+ * @param iv        location to write the Initialization Vector (IV)
+ *
+ * @param protect   location of the data to be encrypted and
+ * authenticated (before the function call), and the ciphertext
+ * and authentication tag (after the call)
+ *
+ * @param protected_len location of the length of the data to be
+ * encrypted and authenticated (before the function call), and the
+ * length of the ciphertext (after the call)
+ *
+ * @param auth_tag   location to write auth tag              
+ */
+
+typedef err_status_t (*xfm_func_t) 
+     (void *key,            
+      void *clear,          
+      unsigned clear_len,   
+      void *iv,             
+      void *protect,         
+      unsigned *protected_len, 
+      void *auth_tag        
+      );
+
+typedef 
+err_status_t (*xfm_inv_t)
+     (void *key,            /* location of secret key                  */
+      void *clear,          /* data to be authenticated only           */
+      unsigned clear_len,   /* length of data to be authenticated only */
+      void *iv,             /* location of iv                          */
+      void *opaque,         /* data to be decrypted and authenticated  */
+      unsigned *opaque_len, /* location of the length of data to be
+			     * decrypted and authd (before and after) 
+			     */
+      void *auth_tag        /* location of auth tag                    */
+      );
+
+typedef struct xfm_ctx_t {
+  xfm_func_t func;
+  xfm_inv_t  inv;
+  unsigned key_len;
+  unsigned iv_len;
+  unsigned auth_tag_len;
+} xfm_ctx_t;
+
+typedef xfm_ctx_t *xfm_t;
+
+#define xfm_get_key_len(xfm) ((xfm)->key_len)
+
+#define xfm_get_iv_len(xfm) ((xfm)->iv_len)
+
+#define xfm_get_auth_tag_len(xfm) ((xfm)->auth_tag_len)
+
+
+/* cryptoalgo - 5/28 */
+  
+typedef err_status_t (*cryptoalg_func_t) 
+     (void *key,            
+      void *clear,          
+      unsigned clear_len,   
+      void *iv,             
+      void *opaque,         
+      unsigned *opaque_len
+      );
+
+typedef 
+err_status_t (*cryptoalg_inv_t)
+     (void *key,            /* location of secret key                  */
+      void *clear,          /* data to be authenticated only           */
+      unsigned clear_len,   /* length of data to be authenticated only */
+      void *iv,             /* location of iv                          */
+      void *opaque,         /* data to be decrypted and authenticated  */
+      unsigned *opaque_len  /* location of the length of data to be
+			     * decrypted and authd (before and after) 
+			     */
+      );
+
+typedef struct cryptoalg_ctx_t {
+  cryptoalg_func_t enc;
+  cryptoalg_inv_t  dec;
+  unsigned key_len;
+  unsigned iv_len;
+  unsigned auth_tag_len;
+  unsigned max_expansion; 
+} cryptoalg_ctx_t;
+
+typedef cryptoalg_ctx_t *cryptoalg_t;
+
+#define cryptoalg_get_key_len(cryptoalg) ((cryptoalg)->key_len)
+
+#define cryptoalg_get_iv_len(cryptoalg) ((cryptoalg)->iv_len)
+
+#define cryptoalg_get_auth_tag_len(cryptoalg) ((cryptoalg)->auth_tag_len)
+
+
+
+/**
+ * @}
+ */
+
+#endif /* XFM_H */
+
+
diff --git a/netwerk/srtp/src/crypto/kernel/alloc.c b/netwerk/srtp/src/crypto/kernel/alloc.c
new file mode 100644
index 000000000..338434191
--- /dev/null
+++ b/netwerk/srtp/src/crypto/kernel/alloc.c
@@ -0,0 +1,121 @@
+/*
+ * alloc.c
+ *
+ * memory allocation and deallocation 
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "alloc.h"
+#include "crypto_kernel.h"
+
+/* the debug module for memory allocation */
+
+debug_module_t mod_alloc = {
+  0,                  /* debugging is off by default */
+  "alloc"             /* printable name for module   */
+};
+
+/*
+ * Nota bene: the debugging statements for crypto_alloc() and
+ * crypto_free() have identical prefixes, which include the addresses
+ * of the memory locations on which they are operating.  This fact can
+ * be used to locate memory leaks, by turning on memory debugging,
+ * grepping for 'alloc', then matching alloc and free calls by
+ * address.
+ */
+
+#ifdef SRTP_KERNEL_LINUX
+
+#include <linux/interrupt.h>
+
+void *
+crypto_alloc(size_t size) {
+  void *ptr;
+
+  ptr = kmalloc(size, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
+
+  if (ptr) {
+    debug_print(mod_alloc, "(location: %p) allocated", ptr);
+  } else {
+    debug_print(mod_alloc, "allocation failed (asked for %d bytes)\n", size);
+  }
+
+  return ptr;
+}
+
+void 
+crypto_free(void *ptr) {
+
+  debug_print(mod_alloc, "(location: %p) freed", ptr);
+
+  kfree(ptr);
+}
+
+
+#elif defined(HAVE_STDLIB_H)
+
+void *
+crypto_alloc(size_t size) {
+  void *ptr;
+
+  ptr = malloc(size);
+    
+  if (ptr) {
+    debug_print(mod_alloc, "(location: %p) allocated", ptr);
+  } else {
+    debug_print(mod_alloc, "allocation failed (asked for %d bytes)\n", size);
+  }
+    
+  return ptr;
+}
+
+void 
+crypto_free(void *ptr) {
+
+  debug_print(mod_alloc, "(location: %p) freed", ptr);
+
+  free(ptr);
+}
+
+#else  /* we need to define our own memory allocation routines */
+
+#error no memory allocation defined yet 
+
+#endif
diff --git a/netwerk/srtp/src/crypto/kernel/crypto_kernel.c b/netwerk/srtp/src/crypto/kernel/crypto_kernel.c
new file mode 100644
index 000000000..0e969bc86
--- /dev/null
+++ b/netwerk/srtp/src/crypto/kernel/crypto_kernel.c
@@ -0,0 +1,573 @@
+/*
+ * crypto_kernel.c
+ *
+ * header for the cryptographic kernel
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "alloc.h"
+
+#include "crypto_kernel.h"
+
+/* the debug module for the crypto_kernel */
+
+debug_module_t mod_crypto_kernel = {
+  0,                  /* debugging is off by default */
+  "crypto kernel"     /* printable name for module   */
+};
+
+/*
+ * other debug modules that can be included in the kernel
+ */
+
+extern debug_module_t mod_auth;
+extern debug_module_t mod_cipher;
+extern debug_module_t mod_stat;
+extern debug_module_t mod_alloc;
+
+/* 
+ * cipher types that can be included in the kernel
+ */ 
+
+extern cipher_type_t null_cipher;
+extern cipher_type_t aes_icm;
+extern cipher_type_t aes_cbc;
+
+
+/*
+ * auth func types that can be included in the kernel
+ */
+
+extern auth_type_t null_auth;
+extern auth_type_t hmac;
+
+/* crypto_kernel is a global variable, the only one of its datatype */
+
+crypto_kernel_t
+crypto_kernel = {
+  crypto_kernel_state_insecure,    /* start off in insecure state */
+  NULL,                            /* no cipher types yet         */
+  NULL,                            /* no auth types yet           */
+  NULL                             /* no debug modules yet        */
+};
+
+#define MAX_RNG_TRIALS 25
+
+err_status_t
+crypto_kernel_init() {
+  err_status_t status;  
+
+  /* check the security state */
+  if (crypto_kernel.state == crypto_kernel_state_secure) {
+    
+    /*
+     * we're already in the secure state, but we've been asked to
+     * re-initialize, so we just re-run the self-tests and then return
+     */
+    return crypto_kernel_status(); 
+  }
+
+  /* initialize error reporting system */
+  status = err_reporting_init("crypto");
+  if (status)
+    return status;
+
+  /* load debug modules */
+  status = crypto_kernel_load_debug_module(&mod_crypto_kernel);
+  if (status)
+    return status;
+  status = crypto_kernel_load_debug_module(&mod_auth);
+  if (status)
+    return status;
+  status = crypto_kernel_load_debug_module(&mod_cipher);
+  if (status)
+    return status;
+  status = crypto_kernel_load_debug_module(&mod_stat);
+  if (status)
+    return status;
+  status = crypto_kernel_load_debug_module(&mod_alloc);
+  if (status)
+    return status;
+  
+  /* initialize random number generator */
+  status = rand_source_init();
+  if (status)
+    return status;
+
+  /* run FIPS-140 statistical tests on rand_source */  
+  status = stat_test_rand_source_with_repetition(rand_source_get_octet_string, MAX_RNG_TRIALS);
+  if (status)
+    return status;
+
+  /* initialize pseudorandom number generator */
+  status = ctr_prng_init(rand_source_get_octet_string);
+  if (status)
+    return status;
+
+  /* run FIPS-140 statistical tests on ctr_prng */  
+  status = stat_test_rand_source_with_repetition(ctr_prng_get_octet_string, MAX_RNG_TRIALS);
+  if (status)
+    return status;
+ 
+  /* load cipher types */
+  status = crypto_kernel_load_cipher_type(&null_cipher, NULL_CIPHER);
+  if (status) 
+    return status;
+  status = crypto_kernel_load_cipher_type(&aes_icm, AES_ICM);
+  if (status) 
+    return status;
+  status = crypto_kernel_load_cipher_type(&aes_cbc, AES_CBC);
+  if (status) 
+    return status;
+
+  /* load auth func types */
+  status = crypto_kernel_load_auth_type(&null_auth, NULL_AUTH);
+  if (status)
+    return status;
+  status = crypto_kernel_load_auth_type(&hmac, HMAC_SHA1);
+  if (status)
+    return status;
+
+  /* change state to secure */
+  crypto_kernel.state = crypto_kernel_state_secure;
+
+  return err_status_ok;
+}
+
+err_status_t
+crypto_kernel_status() {
+  err_status_t status;
+  kernel_cipher_type_t  *ctype = crypto_kernel.cipher_type_list;
+  kernel_auth_type_t    *atype = crypto_kernel.auth_type_list;
+  kernel_debug_module_t *dm    = crypto_kernel.debug_module_list;
+
+  /* run FIPS-140 statistical tests on rand_source */  
+  printf("testing rand_source...");
+  status = stat_test_rand_source_with_repetition(rand_source_get_octet_string, MAX_RNG_TRIALS);
+  if (status) {
+    printf("failed\n");
+    crypto_kernel.state = crypto_kernel_state_insecure;
+    return status;
+  }  
+  printf("passed\n");
+
+  /* for each cipher type, describe and test */
+  while(ctype != NULL) {
+    printf("cipher: %s\n", ctype->cipher_type->description);
+    printf("  instance count: %d\n", ctype->cipher_type->ref_count);
+    printf("  self-test: ");
+    status = cipher_type_self_test(ctype->cipher_type);
+    if (status) {
+      printf("failed with error code %d\n", status);
+      exit(status);
+    }
+    printf("passed\n");
+    ctype = ctype->next;
+  }
+  
+  /* for each auth type, describe and test */
+  while(atype != NULL) {
+    printf("auth func: %s\n", atype->auth_type->description);
+    printf("  instance count: %d\n", atype->auth_type->ref_count);
+    printf("  self-test: ");
+    status = auth_type_self_test(atype->auth_type);
+    if (status) {
+      printf("failed with error code %d\n", status);
+      exit(status);
+    }
+    printf("passed\n");
+    atype = atype->next;
+  }
+
+  /* describe each debug module */
+  printf("debug modules loaded:\n");
+  while (dm != NULL) {
+    printf("  %s ", dm->mod->name);  
+    if (dm->mod->on)
+      printf("(on)\n");
+    else
+      printf("(off)\n");
+    dm = dm->next;
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+crypto_kernel_list_debug_modules() {
+  kernel_debug_module_t *dm = crypto_kernel.debug_module_list;
+
+  /* describe each debug module */
+  printf("debug modules loaded:\n");
+  while (dm != NULL) {
+    printf("  %s ", dm->mod->name);  
+    if (dm->mod->on)
+      printf("(on)\n");
+    else
+      printf("(off)\n");
+    dm = dm->next;
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+crypto_kernel_shutdown() {
+  err_status_t status;
+
+  /*
+   * free dynamic memory used in crypto_kernel at present
+   */
+
+  /* walk down cipher type list, freeing memory */
+  while (crypto_kernel.cipher_type_list != NULL) {
+    kernel_cipher_type_t *ctype = crypto_kernel.cipher_type_list;
+    crypto_kernel.cipher_type_list = ctype->next;
+    debug_print(mod_crypto_kernel, 
+		"freeing memory for cipher %s", 
+		ctype->cipher_type->description);
+    crypto_free(ctype);
+  }
+
+  /* walk down authetication module list, freeing memory */
+  while (crypto_kernel.auth_type_list != NULL) {
+     kernel_auth_type_t *atype = crypto_kernel.auth_type_list;
+     crypto_kernel.auth_type_list = atype->next;
+     debug_print(mod_crypto_kernel, 
+		"freeing memory for authentication %s",
+		atype->auth_type->description);
+     crypto_free(atype);
+  }
+
+  /* walk down debug module list, freeing memory */
+  while (crypto_kernel.debug_module_list != NULL) {
+    kernel_debug_module_t *kdm = crypto_kernel.debug_module_list;
+    crypto_kernel.debug_module_list = kdm->next;
+    debug_print(mod_crypto_kernel, 
+		"freeing memory for debug module %s", 
+		kdm->mod->name);
+    crypto_free(kdm);
+  }
+
+  /* de-initialize random number generator */  status = rand_source_deinit();
+  if (status)
+    return status;
+
+  /* return to insecure state */
+  crypto_kernel.state = crypto_kernel_state_insecure;
+  
+  return err_status_ok;
+}
+
+static inline err_status_t
+crypto_kernel_do_load_cipher_type(cipher_type_t *new_ct, cipher_type_id_t id,
+				  int replace) {
+  kernel_cipher_type_t *ctype, *new_ctype;
+  err_status_t status;
+
+  /* defensive coding */
+  if (new_ct == NULL)
+    return err_status_bad_param;
+
+  if (new_ct->id != id)
+    return err_status_bad_param;
+
+  /* check cipher type by running self-test */
+  status = cipher_type_self_test(new_ct);
+  if (status) {
+    return status;
+  }
+
+  /* walk down list, checking if this type is in the list already  */
+  ctype = crypto_kernel.cipher_type_list;
+  while (ctype != NULL) {
+    if (id == ctype->id) {
+      if (!replace)
+	return err_status_bad_param;
+      status = cipher_type_test(new_ct, ctype->cipher_type->test_data);
+      if (status)
+	return status;
+      new_ctype = ctype;
+      break;
+    }
+    else if (new_ct == ctype->cipher_type)
+      return err_status_bad_param;    
+    ctype = ctype->next;
+  }
+
+  /* if not found, put new_ct at the head of the list */
+  if (ctype == NULL) {
+  /* allocate memory */
+    new_ctype = (kernel_cipher_type_t *) crypto_alloc(sizeof(kernel_cipher_type_t));
+    if (new_ctype == NULL)
+      return err_status_alloc_fail;
+    new_ctype->next = crypto_kernel.cipher_type_list;
+
+    /* set head of list to new cipher type */
+    crypto_kernel.cipher_type_list = new_ctype;    
+  }
+    
+  /* set fields */
+  new_ctype->cipher_type = new_ct;
+  new_ctype->id = id;
+
+  /* load debug module, if there is one present */
+  if (new_ct->debug != NULL)
+    crypto_kernel_load_debug_module(new_ct->debug);
+  /* we could check for errors here */
+
+  return err_status_ok;
+}
+
+err_status_t
+crypto_kernel_load_cipher_type(cipher_type_t *new_ct, cipher_type_id_t id) {
+  return crypto_kernel_do_load_cipher_type(new_ct, id, 0);
+}
+
+err_status_t
+crypto_kernel_replace_cipher_type(cipher_type_t *new_ct, cipher_type_id_t id) {
+  return crypto_kernel_do_load_cipher_type(new_ct, id, 1);
+}
+
+err_status_t
+crypto_kernel_do_load_auth_type(auth_type_t *new_at, auth_type_id_t id,
+				int replace) {
+  kernel_auth_type_t *atype, *new_atype;
+  err_status_t status;
+
+  /* defensive coding */
+  if (new_at == NULL)
+    return err_status_bad_param;
+
+  if (new_at->id != id)
+    return err_status_bad_param;
+
+  /* check auth type by running self-test */
+  status = auth_type_self_test(new_at);
+  if (status) {
+    return status;
+  }
+
+  /* walk down list, checking if this type is in the list already  */
+  atype = crypto_kernel.auth_type_list;
+  while (atype != NULL) {
+    if (id == atype->id) {
+      if (!replace)
+	return err_status_bad_param;
+      status = auth_type_test(new_at, atype->auth_type->test_data);
+      if (status)
+	return status;
+      new_atype = atype;
+      break;
+    }
+    else if (new_at == atype->auth_type)
+      return err_status_bad_param;    
+    atype = atype->next;
+  }
+
+  /* if not found, put new_at at the head of the list */
+  if (atype == NULL) {
+    /* allocate memory */
+    new_atype = (kernel_auth_type_t *)crypto_alloc(sizeof(kernel_auth_type_t));
+    if (new_atype == NULL)
+      return err_status_alloc_fail;
+
+    new_atype->next = crypto_kernel.auth_type_list;
+    /* set head of list to new auth type */
+    crypto_kernel.auth_type_list = new_atype;
+  }
+    
+  /* set fields */
+  new_atype->auth_type = new_at;
+  new_atype->id = id;
+
+  /* load debug module, if there is one present */
+  if (new_at->debug != NULL)
+    crypto_kernel_load_debug_module(new_at->debug);
+  /* we could check for errors here */
+
+  return err_status_ok;
+
+}
+
+err_status_t
+crypto_kernel_load_auth_type(auth_type_t *new_at, auth_type_id_t id) {
+  return crypto_kernel_do_load_auth_type(new_at, id, 0);
+}
+
+err_status_t
+crypto_kernel_replace_auth_type(auth_type_t *new_at, auth_type_id_t id) {
+  return crypto_kernel_do_load_auth_type(new_at, id, 1);
+}
+
+
+cipher_type_t *
+crypto_kernel_get_cipher_type(cipher_type_id_t id) {
+  kernel_cipher_type_t *ctype;
+  
+  /* walk down list, looking for id  */
+  ctype = crypto_kernel.cipher_type_list;
+  while (ctype != NULL) {
+    if (id == ctype->id)
+      return ctype->cipher_type; 
+    ctype = ctype->next;
+  } 
+
+  /* haven't found the right one, indicate failure by returning NULL */
+  return NULL;
+}
+
+
+err_status_t
+crypto_kernel_alloc_cipher(cipher_type_id_t id, 
+			      cipher_pointer_t *cp, 
+			      int key_len) {
+  cipher_type_t *ct;
+
+  /* 
+   * if the crypto_kernel is not yet initialized, we refuse to allocate
+   * any ciphers - this is a bit extra-paranoid
+   */
+  if (crypto_kernel.state != crypto_kernel_state_secure)
+    return err_status_init_fail;
+
+  ct = crypto_kernel_get_cipher_type(id);
+  if (!ct)
+    return err_status_fail;
+  
+  return ((ct)->alloc(cp, key_len));
+}
+
+
+
+auth_type_t *
+crypto_kernel_get_auth_type(auth_type_id_t id) {
+  kernel_auth_type_t *atype;
+  
+  /* walk down list, looking for id  */
+  atype = crypto_kernel.auth_type_list;
+  while (atype != NULL) {
+    if (id == atype->id)
+      return atype->auth_type; 
+    atype = atype->next;
+  } 
+
+  /* haven't found the right one, indicate failure by returning NULL */
+  return NULL;
+}
+
+err_status_t
+crypto_kernel_alloc_auth(auth_type_id_t id, 
+			 auth_pointer_t *ap, 
+			 int key_len,
+			 int tag_len) {
+  auth_type_t *at;
+
+  /* 
+   * if the crypto_kernel is not yet initialized, we refuse to allocate
+   * any auth functions - this is a bit extra-paranoid
+   */
+  if (crypto_kernel.state != crypto_kernel_state_secure)
+    return err_status_init_fail;
+
+  at = crypto_kernel_get_auth_type(id);
+  if (!at)
+    return err_status_fail;
+  
+  return ((at)->alloc(ap, key_len, tag_len));
+}
+
+err_status_t
+crypto_kernel_load_debug_module(debug_module_t *new_dm) {
+  kernel_debug_module_t *kdm, *new;
+
+  /* defensive coding */
+  if (new_dm == NULL)
+    return err_status_bad_param;
+
+  /* walk down list, checking if this type is in the list already  */
+  kdm = crypto_kernel.debug_module_list;
+  while (kdm != NULL) {
+    if (strncmp(new_dm->name, kdm->mod->name, 64) == 0)
+      return err_status_bad_param;    
+    kdm = kdm->next;
+  }
+
+  /* put new_dm at the head of the list */
+  /* allocate memory */
+  new = (kernel_debug_module_t *)crypto_alloc(sizeof(kernel_debug_module_t));
+  if (new == NULL)
+    return err_status_alloc_fail;
+    
+  /* set fields */
+  new->mod = new_dm;
+  new->next = crypto_kernel.debug_module_list;
+
+  /* set head of list to new cipher type */
+  crypto_kernel.debug_module_list = new;    
+
+  return err_status_ok;
+}
+
+err_status_t
+crypto_kernel_set_debug_module(char *name, int on) {
+  kernel_debug_module_t *kdm;
+  
+  /* walk down list, checking if this type is in the list already  */
+  kdm = crypto_kernel.debug_module_list;
+  while (kdm != NULL) {
+    if (strncmp(name, kdm->mod->name, 64) == 0) {
+      kdm->mod->on = on;
+      return err_status_ok;
+    }
+    kdm = kdm->next;
+  }
+
+  return err_status_fail;
+}
+
+err_status_t
+crypto_get_random(unsigned char *buffer, unsigned int length) {
+  if (crypto_kernel.state == crypto_kernel_state_secure)
+    return ctr_prng_get_octet_string(buffer, length);
+  else
+    return err_status_fail;
+}
diff --git a/netwerk/srtp/src/crypto/kernel/err.c b/netwerk/srtp/src/crypto/kernel/err.c
new file mode 100644
index 000000000..3237965ab
--- /dev/null
+++ b/netwerk/srtp/src/crypto/kernel/err.c
@@ -0,0 +1,149 @@
+/*
+ * err.c
+ *
+ * error status reporting functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "err.h"
+
+#ifdef ERR_REPORTING_SYSLOG
+# ifdef HAVE_SYSLOG_H
+#  include <syslog.h>
+# endif
+#endif
+
+
+/*  err_level reflects the level of errors that are reported  */
+
+err_reporting_level_t err_level = err_level_none;
+
+#ifdef SRTP_KERNEL_LINUX
+err_status_t
+err_reporting_init(char *ident) {
+
+  return err_status_ok;
+}
+
+#else /* SRTP_KERNEL_LINUX */	
+
+/* err_file is the FILE to which errors are reported */
+
+static FILE *err_file = NULL;
+
+err_status_t
+err_reporting_init(char *ident) {
+#ifdef ERR_REPORTING_SYSLOG
+  openlog(ident, LOG_PID, LOG_AUTHPRIV);
+#endif
+  
+  /*
+   * Believe it or not, openlog doesn't return an error on failure.
+   * But then, neither does the syslog() call...
+   */
+
+#ifdef ERR_REPORTING_STDOUT
+  err_file = stdout;
+#elif defined(USE_ERR_REPORTING_FILE)
+  /* open file for error reporting */
+  err_file = fopen(ERR_REPORTING_FILE, "w");
+  if (err_file == NULL)
+    return err_status_init_fail;
+#endif
+
+  return err_status_ok;
+}
+
+void
+err_report(int priority, char *format, ...) {
+  va_list args;
+
+  if ((err_reporting_level_t)priority <= err_level) {
+
+    va_start(args, format);
+    if (err_file != NULL) {
+      vfprintf(err_file, format, args);
+	  /*      fprintf(err_file, "\n"); */
+    }
+#ifdef ERR_REPORTING_SYSLOG
+    if (1) { /* FIXME: Make this a runtime option. */
+      int syslogpri;
+
+      switch (priority) {
+      case err_level_emergency:
+	syslogpri = LOG_EMERG;
+	break;
+      case err_level_alert:
+	syslogpri = LOG_ALERT;
+	break;
+      case err_level_critical:
+	syslogpri = LOG_CRIT;
+	break;
+      case err_level_error:
+	syslogpri = LOG_ERR;
+	break;
+      case err_level_warning:
+	syslogpri = LOG_WARNING;
+	break;
+      case err_level_notice:
+	syslogpri = LOG_NOTICE;
+	break;
+      case err_level_info:
+	syslogpri = LOG_INFO;
+	break;
+      case err_level_debug:
+      case err_level_none:
+      default:
+	syslogpri = LOG_DEBUG;
+	break;
+      }
+
+      vsyslog(syslogpri, format, args);
+    }
+#endif
+    va_end(args);
+  }
+}
+#endif /* SRTP_KERNEL_LINUX */	
+
+void
+err_reporting_set_level(err_reporting_level_t lvl) { 
+  err_level = lvl;
+}
diff --git a/netwerk/srtp/src/crypto/kernel/key.c b/netwerk/srtp/src/crypto/kernel/key.c
new file mode 100644
index 000000000..9f63b22c2
--- /dev/null
+++ b/netwerk/srtp/src/crypto/kernel/key.c
@@ -0,0 +1,115 @@
+/*
+ * key.c
+ *
+ * key usage limits enforcement
+ * 
+ * David A. Mcgrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "key.h"
+
+#define soft_limit 0x10000
+
+err_status_t
+key_limit_set(key_limit_t key, const xtd_seq_num_t s) {
+#ifdef NO_64BIT_MATH
+  if (high32(s) == 0 && low32(s) < soft_limit)
+    return err_status_bad_param;
+#else
+  if (s < soft_limit)
+    return err_status_bad_param;
+#endif
+  key->num_left = s;
+  key->state = key_state_normal;
+  return err_status_ok;
+}
+
+err_status_t
+key_limit_clone(key_limit_t original, key_limit_t *new_key) {
+  if (original == NULL)
+    return err_status_bad_param;
+  *new_key = original;
+  return err_status_ok;
+}
+
+err_status_t
+key_limit_check(const key_limit_t key) {
+  if (key->state == key_state_expired)
+    return err_status_key_expired;
+  return err_status_ok;
+}
+
+key_event_t
+key_limit_update(key_limit_t key) {
+#ifdef NO_64BIT_MATH
+  if (low32(key->num_left) == 0)
+  {
+	  // carry
+	  key->num_left = make64(high32(key->num_left)-1,low32(key->num_left) - 1);
+  }
+  else
+  {
+	  // no carry
+	  key->num_left = make64(high32(key->num_left),low32(key->num_left) - 1);
+  }
+  if (high32(key->num_left) != 0 || low32(key->num_left) >= soft_limit) {
+    return key_event_normal;   /* we're above the soft limit */
+  }
+#else
+  key->num_left--;
+  if (key->num_left >= soft_limit) {
+    return key_event_normal;   /* we're above the soft limit */
+  }
+#endif
+  if (key->state == key_state_normal) {
+    /* we just passed the soft limit, so change the state */
+    key->state = key_state_past_soft_limit;
+  }
+#ifdef NO_64BIT_MATH
+  if (low32(key->num_left) == 0 && high32(key->num_left == 0))
+#else
+  if (key->num_left < 1)
+#endif
+  { /* we just hit the hard limit */
+    key->state = key_state_expired;
+    return key_event_hard_limit;
+  }
+   return key_event_soft_limit;
+}
+
diff --git a/netwerk/srtp/src/crypto/math/datatypes.c b/netwerk/srtp/src/crypto/math/datatypes.c
new file mode 100644
index 000000000..9e83e56ab
--- /dev/null
+++ b/netwerk/srtp/src/crypto/math/datatypes.c
@@ -0,0 +1,722 @@
+/*
+ * datatypes.c
+ *
+ * data types for finite fields and functions for input, output, and
+ * manipulation
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "datatypes.h"
+
+// MOZILLA: upstream code lacks |static const| and uses |int| elements, which
+// means it isn't read-only and so cannot be shared between processes, and is
+// four times bigger than necessary. Please preserve these changes until they
+// are upstreamed.
+static const int8_t
+octet_weight[256] = {
+  0, 1, 1, 2, 1, 2, 2, 3,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  5, 6, 6, 7, 6, 7, 7, 8
+};
+
+int
+octet_get_weight(uint8_t octet) {
+  // MOZILLA: upstream code here is slightly different due to the changes we've
+  // made to octet_weight's declaration above
+  return (int)octet_weight[octet];
+}
+
+/*
+ * bit_string is a buffer that is used to hold output strings, e.g.
+ * for printing.
+ */
+
+/* the value MAX_PRINT_STRING_LEN is defined in datatypes.h */
+
+char bit_string[MAX_PRINT_STRING_LEN];
+
+uint8_t
+nibble_to_hex_char(uint8_t nibble) {
+  char buf[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
+		  '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+  return buf[nibble & 0xF];
+}
+
+char *
+octet_string_hex_string(const void *s, int length) {
+  const uint8_t *str = (const uint8_t *)s;
+  int i;
+  
+  /* double length, since one octet takes two hex characters */
+  length *= 2;
+
+  /* truncate string if it would be too long */
+  if (length > MAX_PRINT_STRING_LEN)
+    length = MAX_PRINT_STRING_LEN-1;
+  
+  for (i=0; i < length; i+=2) {
+    bit_string[i]   = nibble_to_hex_char(*str >> 4);
+    bit_string[i+1] = nibble_to_hex_char(*str++ & 0xF);
+  }
+  bit_string[i] = 0; /* null terminate string */
+  return bit_string;
+}
+
+static inline int
+hex_char_to_nibble(uint8_t c) {
+  switch(c) {
+  case ('0'): return 0x0;
+  case ('1'): return 0x1;
+  case ('2'): return 0x2;
+  case ('3'): return 0x3;
+  case ('4'): return 0x4;
+  case ('5'): return 0x5;
+  case ('6'): return 0x6;
+  case ('7'): return 0x7;
+  case ('8'): return 0x8;
+  case ('9'): return 0x9;
+  case ('a'): return 0xa;
+  case ('A'): return 0xa;
+  case ('b'): return 0xb;
+  case ('B'): return 0xb;
+  case ('c'): return 0xc;
+  case ('C'): return 0xc;
+  case ('d'): return 0xd;
+  case ('D'): return 0xd;
+  case ('e'): return 0xe;
+  case ('E'): return 0xe;
+  case ('f'): return 0xf;
+  case ('F'): return 0xf;
+  default: return -1;   /* this flags an error */
+  }
+  /* NOTREACHED */
+  return -1;  /* this keeps compilers from complaining */
+}
+
+int
+is_hex_string(char *s) {
+  while(*s != 0)
+    if (hex_char_to_nibble(*s++) == -1)
+      return 0;
+  return 1;
+}
+
+/*
+ * hex_string_to_octet_string converts a hexadecimal string
+ * of length 2 * len to a raw octet string of length len
+ */
+
+int
+hex_string_to_octet_string(char *raw, char *hex, int len) {
+  uint8_t x;
+  int tmp;
+  int hex_len;
+
+  hex_len = 0;
+  while (hex_len < len) {
+    tmp = hex_char_to_nibble(hex[0]);
+    if (tmp == -1)
+      return hex_len;
+    x = (tmp << 4);
+    hex_len++;
+    tmp = hex_char_to_nibble(hex[1]);
+    if (tmp == -1)
+      return hex_len;
+    x |= (tmp & 0xff);
+    hex_len++;
+    *raw++ = x;
+    hex += 2;
+  }
+  return hex_len;
+}
+
+char *
+v128_hex_string(v128_t *x) {
+  int i, j;
+
+  for (i=j=0; i < 16; i++) {
+    bit_string[j++]  = nibble_to_hex_char(x->v8[i] >> 4);
+    bit_string[j++]  = nibble_to_hex_char(x->v8[i] & 0xF);
+  }
+  
+  bit_string[j] = 0; /* null terminate string */
+  return bit_string;
+}
+
+char *
+v128_bit_string(v128_t *x) {
+  int j, i;
+  uint32_t mask;
+  
+  for (j=i=0; j < 4; j++) {
+    for (mask=0x80000000; mask > 0; mask >>= 1) {
+      if (x->v32[j] & mask)
+	bit_string[i] = '1';
+      else
+	bit_string[i] = '0';
+      ++i;
+    }
+  }
+  bit_string[128] = 0; /* null terminate string */
+
+  return bit_string;
+}
+
+void
+v128_copy_octet_string(v128_t *x, const uint8_t s[16]) {
+#ifdef ALIGNMENT_32BIT_REQUIRED
+  if ((((uint32_t) &s[0]) & 0x3) != 0)
+#endif
+  {
+	  x->v8[0]  = s[0];
+	  x->v8[1]  = s[1];
+	  x->v8[2]  = s[2];
+	  x->v8[3]  = s[3];
+	  x->v8[4]  = s[4];
+	  x->v8[5]  = s[5];
+	  x->v8[6]  = s[6];
+	  x->v8[7]  = s[7];
+	  x->v8[8]  = s[8];
+	  x->v8[9]  = s[9];
+	  x->v8[10] = s[10];
+	  x->v8[11] = s[11];
+	  x->v8[12] = s[12];
+	  x->v8[13] = s[13];
+	  x->v8[14] = s[14];
+	  x->v8[15] = s[15];
+  }
+#ifdef ALIGNMENT_32BIT_REQUIRED
+  else 
+  {
+	  v128_t *v = (v128_t *) &s[0];
+
+	  v128_copy(x,v);
+  }
+#endif
+}
+
+#ifndef DATATYPES_USE_MACROS /* little functions are not macros */
+
+void
+v128_set_to_zero(v128_t *x) {
+  _v128_set_to_zero(x);
+}
+
+void
+v128_copy(v128_t *x, const v128_t *y) {
+  _v128_copy(x, y);
+}
+
+void
+v128_xor(v128_t *z, v128_t *x, v128_t *y) {
+  _v128_xor(z, x, y);
+} 
+
+void
+v128_and(v128_t *z, v128_t *x, v128_t *y) {
+  _v128_and(z, x, y);
+}
+
+void
+v128_or(v128_t *z, v128_t *x, v128_t *y) {
+  _v128_or(z, x, y);
+}
+
+void
+v128_complement(v128_t *x) {
+  _v128_complement(x);
+}
+
+int
+v128_is_eq(const v128_t *x, const v128_t *y) {
+  return _v128_is_eq(x, y);
+}
+
+int
+v128_xor_eq(v128_t *x, const v128_t *y) {
+  return _v128_xor_eq(x, y);
+}
+
+int
+v128_get_bit(const v128_t *x, int i) {
+  return _v128_get_bit(x, i);
+}
+
+void
+v128_set_bit(v128_t *x, int i) {
+  _v128_set_bit(x, i);
+}     
+
+void
+v128_clear_bit(v128_t *x, int i){
+  _v128_clear_bit(x, i);
+}    
+
+void
+v128_set_bit_to(v128_t *x, int i, int y){
+  _v128_set_bit_to(x, i, y);
+}
+
+
+#endif /* DATATYPES_USE_MACROS */
+
+void
+v128_right_shift(v128_t *x, int shift) {
+  const int base_index = shift >> 5;
+  const int bit_index = shift & 31;
+  int i, from;
+  uint32_t b;
+    
+  if (shift > 127) {
+    v128_set_to_zero(x);
+    return;
+  }
+
+  if (bit_index == 0) {
+
+    /* copy each word from left size to right side */
+    x->v32[4-1] = x->v32[4-1-base_index];
+    for (i=4-1; i > base_index; i--) 
+      x->v32[i-1] = x->v32[i-1-base_index];
+
+  } else {
+    
+    /* set each word to the "or" of the two bit-shifted words */
+    for (i = 4; i > base_index; i--) {
+      from = i-1 - base_index;
+      b = x->v32[from] << bit_index;
+      if (from > 0)
+        b |= x->v32[from-1] >> (32-bit_index);
+      x->v32[i-1] = b;
+    }
+    
+  }
+
+  /* now wrap up the final portion */
+  for (i=0; i < base_index; i++) 
+    x->v32[i] = 0;
+  
+}
+
+void
+v128_left_shift(v128_t *x, int shift) {
+  int i;
+  const int base_index = shift >> 5;
+  const int bit_index = shift & 31;
+
+  if (shift > 127) {
+    v128_set_to_zero(x);
+    return;
+  } 
+  
+  if (bit_index == 0) {
+    for (i=0; i < 4 - base_index; i++)
+      x->v32[i] = x->v32[i+base_index];
+  } else {
+    for (i=0; i < 4 - base_index - 1; i++)
+      x->v32[i] = (x->v32[i+base_index] >> bit_index) ^
+	(x->v32[i+base_index+1] << (32 - bit_index));
+    x->v32[4 - base_index-1] = x->v32[4-1] >> bit_index;
+  }
+
+  /* now wrap up the final portion */
+  for (i = 4 - base_index; i < 4; i++) 
+    x->v32[i] = 0;
+
+}
+
+/* functions manipulating bitvector_t */
+
+#ifndef DATATYPES_USE_MACROS /* little functions are not macros */
+
+int
+bitvector_get_bit(const bitvector_t *v, int bit_index)
+{
+  return _bitvector_get_bit(v, bit_index);
+}
+
+void
+bitvector_set_bit(bitvector_t *v, int bit_index)
+{
+  _bitvector_set_bit(v, bit_index);
+}
+
+void
+bitvector_clear_bit(bitvector_t *v, int bit_index)
+{
+  _bitvector_clear_bit(v, bit_index);
+}
+
+
+#endif /* DATATYPES_USE_MACROS */
+
+int
+bitvector_alloc(bitvector_t *v, unsigned long length) {
+  unsigned long l;
+
+  /* Round length up to a multiple of bits_per_word */
+  length = (length + bits_per_word - 1) & ~(unsigned long)((bits_per_word - 1));
+
+  l = length / bits_per_word * bytes_per_word;
+
+  /* allocate memory, then set parameters */
+  if (l == 0)
+    v->word = NULL;
+  else {
+    v->word = (uint32_t*)crypto_alloc(l);
+    if (v->word == NULL) {
+      v->word = NULL;
+      v->length = 0;
+      return -1;
+    }
+  }
+  v->length = length;
+
+  /* initialize bitvector to zero */
+  bitvector_set_to_zero(v);
+
+  return 0;
+}
+
+
+void
+bitvector_dealloc(bitvector_t *v) {
+  if (v->word != NULL)
+    crypto_free(v->word);
+  v->word = NULL;
+  v->length = 0;
+}
+
+void
+bitvector_set_to_zero(bitvector_t *x)
+{
+  /* C99 guarantees that memset(0) will set the value 0 for uint32_t */
+  memset(x->word, 0, x->length >> 3);
+}
+
+char *
+bitvector_bit_string(bitvector_t *x, char* buf, int len) {
+  int j, i;
+  uint32_t mask;
+  
+  for (j=i=0; j < (int)(x->length>>5) && i < len-1; j++) {
+    for (mask=0x80000000; mask > 0; mask >>= 1) {
+      if (x->word[j] & mask)
+	buf[i] = '1';
+      else
+	buf[i] = '0';
+      ++i;
+      if (i >= len-1)
+        break;
+    }
+  }
+  buf[i] = 0; /* null terminate string */
+
+  return buf;
+}
+
+void
+bitvector_left_shift(bitvector_t *x, int shift) {
+  int i;
+  const int base_index = shift >> 5;
+  const int bit_index = shift & 31;
+  const int word_length = x->length >> 5;
+
+  if (shift >= (int)x->length) {
+    bitvector_set_to_zero(x);
+    return;
+  } 
+  
+  if (bit_index == 0) {
+    for (i=0; i < word_length - base_index; i++)
+      x->word[i] = x->word[i+base_index];
+  } else {
+    for (i=0; i < word_length - base_index - 1; i++)
+      x->word[i] = (x->word[i+base_index] >> bit_index) ^
+	(x->word[i+base_index+1] << (32 - bit_index));
+    x->word[word_length - base_index-1] = x->word[word_length-1] >> bit_index;
+  }
+
+  /* now wrap up the final portion */
+  for (i = word_length - base_index; i < word_length; i++) 
+    x->word[i] = 0;
+
+}
+
+
+int
+octet_string_is_eq(uint8_t *a, uint8_t *b, int len) {
+  uint8_t *end = b + len;
+  while (b < end)
+    if (*a++ != *b++)
+      return 1;
+  return 0;
+}
+
+void
+octet_string_set_to_zero(uint8_t *s, int len) {
+  uint8_t *end = s + len;
+
+  do {
+    *s = 0;
+  } while (++s < end);
+  
+}
+
+
+/*
+ *  From RFC 1521: The Base64 Alphabet
+ *
+ *   Value Encoding  Value Encoding  Value Encoding  Value Encoding
+ *        0 A            17 R            34 i            51 z
+ *        1 B            18 S            35 j            52 0
+ *        2 C            19 T            36 k            53 1
+ *        3 D            20 U            37 l            54 2
+ *        4 E            21 V            38 m            55 3
+ *        5 F            22 W            39 n            56 4
+ *        6 G            23 X            40 o            57 5
+ *        7 H            24 Y            41 p            58 6
+ *        8 I            25 Z            42 q            59 7
+ *        9 J            26 a            43 r            60 8
+ *       10 K            27 b            44 s            61 9
+ *       11 L            28 c            45 t            62 +
+ *       12 M            29 d            46 u            63 /
+ *       13 N            30 e            47 v
+ *       14 O            31 f            48 w         (pad) =
+ *       15 P            32 g            49 x
+ *       16 Q            33 h            50 y
+ */
+
+int
+base64_char_to_sextet(uint8_t c) {
+  switch(c) {
+  case 'A':
+    return 0;
+  case 'B':
+    return 1;
+  case 'C':
+    return 2;
+  case 'D':
+    return 3;
+  case 'E':
+    return 4;
+  case 'F':
+    return 5;
+  case 'G':
+    return 6;
+  case 'H':
+    return 7;
+  case 'I':
+    return 8;
+  case 'J':
+    return 9;
+  case 'K':
+    return 10;
+  case 'L':
+    return 11;
+  case 'M':
+    return 12;
+  case 'N':
+    return 13;
+  case 'O':
+    return 14;
+  case 'P':
+    return 15;
+  case 'Q':
+    return 16;
+  case 'R':
+    return 17;
+  case 'S':
+    return 18;
+  case 'T':
+    return 19;
+  case 'U':
+    return 20;
+  case 'V':
+    return 21;
+  case 'W':
+    return 22;
+  case 'X':
+    return 23;
+  case 'Y':
+    return 24;
+  case 'Z':
+    return 25;
+  case 'a':
+    return 26;
+  case 'b':
+    return 27;
+  case 'c':
+    return 28;
+  case 'd':
+    return 29;
+  case 'e':
+    return 30;
+  case 'f':
+    return 31;
+  case 'g':
+    return 32;
+  case 'h':
+    return 33;
+  case 'i':
+    return 34;
+  case 'j':
+    return 35;
+  case 'k':
+    return 36;
+  case 'l':
+    return 37;
+  case 'm':
+    return 38;
+  case 'n':
+    return 39;
+  case 'o':
+    return 40;
+  case 'p':
+    return 41;
+  case 'q':
+    return 42;
+  case 'r':
+    return 43;
+  case 's':
+    return 44;
+  case 't':
+    return 45;
+  case 'u':
+    return 46;
+  case 'v':
+    return 47;
+  case 'w':
+    return 48;
+  case 'x':
+    return 49;
+  case 'y':
+    return 50;
+  case 'z':
+    return 51;
+  case '0':
+    return 52;
+  case '1':
+    return 53;
+  case '2':
+    return 54;
+  case '3':
+    return 55;
+  case '4':
+    return 56;
+  case '5':
+    return 57;
+  case '6':
+    return 58;
+  case '7':
+    return 59;
+  case '8':
+    return 60;
+  case '9':
+    return 61;
+  case '+':
+    return 62;
+  case '/':
+    return 63;
+  case '=':
+    return 64;
+  default:
+    break;
+ }
+ return -1;
+}
+
+/*
+ * base64_string_to_octet_string converts a hexadecimal string
+ * of length 2 * len to a raw octet string of length len
+ */
+
+int
+base64_string_to_octet_string(char *raw, char *base64, int len) {
+  uint8_t x;
+  int tmp;
+  int base64_len;
+
+  base64_len = 0;
+  while (base64_len < len) {
+    tmp = base64_char_to_sextet(base64[0]);
+    if (tmp == -1)
+      return base64_len;
+    x = (tmp << 6);
+    base64_len++;
+    tmp = base64_char_to_sextet(base64[1]);
+    if (tmp == -1)
+      return base64_len;
+    x |= (tmp & 0xffff);
+    base64_len++;
+    *raw++ = x;
+    base64 += 2;
+  }
+  return base64_len;
+}
diff --git a/netwerk/srtp/src/crypto/math/math.c b/netwerk/srtp/src/crypto/math/math.c
new file mode 100644
index 000000000..9e3e78ed1
--- /dev/null
+++ b/netwerk/srtp/src/crypto/math/math.c
@@ -0,0 +1,802 @@
+/*
+ * math.c
+ *
+ * crypto math operations and data types
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "crypto_math.h"
+
+int 
+octet_weight[256] = {
+  0, 1, 1, 2, 1, 2, 2, 3,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  1, 2, 2, 3, 2, 3, 3, 4,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  2, 3, 3, 4, 3, 4, 4, 5,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  3, 4, 4, 5, 4, 5, 5, 6,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  4, 5, 5, 6, 5, 6, 6, 7,
+  5, 6, 6, 7, 6, 7, 7, 8
+};
+
+int
+low_bit[256] = {
+  -1, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  5, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  6, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  5, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  7, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  5, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  6, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  5, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0,
+  4, 0, 1, 0, 2, 0, 1, 0,
+  3, 0, 1, 0, 2, 0, 1, 0
+};
+
+
+int
+high_bit[256] = {
+  -1, 0, 1, 1, 2, 2, 2, 2,
+  3, 3, 3, 3, 3, 3, 3, 3,
+  4, 4, 4, 4, 4, 4, 4, 4,
+  4, 4, 4, 4, 4, 4, 4, 4,
+  5, 5, 5, 5, 5, 5, 5, 5,
+  5, 5, 5, 5, 5, 5, 5, 5,
+  5, 5, 5, 5, 5, 5, 5, 5,
+  5, 5, 5, 5, 5, 5, 5, 5,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7
+};
+
+int
+octet_get_weight(uint8_t octet) {
+  extern int octet_weight[256];
+
+  return octet_weight[octet];
+}  
+
+unsigned char
+v32_weight(v32_t a) {
+  unsigned int wt = 0;
+  
+  wt += octet_weight[a.v8[0]];  /* note: endian-ness makes no difference */
+  wt += octet_weight[a.v8[1]];
+  wt += octet_weight[a.v8[2]];
+  wt += octet_weight[a.v8[3]];
+  
+  return wt;
+}
+
+unsigned char
+v32_distance(v32_t x, v32_t y) {
+  x.value ^= y.value;
+  return v32_weight(x);
+}
+
+unsigned int
+v32_dot_product(v32_t a, v32_t b) {
+  a.value &= b.value;
+  return v32_weight(a) & 1;
+}
+
+/*
+ * _bit_string returns a NULL-terminated character string suitable for
+ * printing
+ */
+
+#define MAX_STRING_LENGTH 1024
+
+char bit_string[MAX_STRING_LENGTH];
+
+char *
+octet_bit_string(uint8_t x) {
+  int mask, index;
+
+  for (mask = 1, index = 0; mask < 256; mask <<= 1)
+    if ((x & mask) == 0)
+      bit_string[index++] = '0';
+    else
+      bit_string[index++] = '1';
+
+  bit_string[index++] = 0;  /* NULL terminate string */
+
+  return bit_string;
+}
+
+char *
+v16_bit_string(v16_t x) {
+  int i, mask, index;
+
+  for (i = index = 0; i < 2; i++) {
+    for (mask = 1; mask < 256; mask <<= 1)
+      if ((x.v8[i] & mask) == 0)
+	bit_string[index++] = '0';
+      else
+	bit_string[index++] = '1';
+  }
+  bit_string[index++] = 0;  /* NULL terminate string */
+  return bit_string;
+}
+
+char *
+v32_bit_string(v32_t x) {
+  int i, mask, index;
+
+  for (i = index = 0; i < 4; i++) {
+    for (mask = 128; mask > 0; mask >>= 1)
+      if ((x.v8[i] & mask) == 0)
+	bit_string[index++] = '0';
+      else
+	bit_string[index++] = '1';
+  }
+  bit_string[index++] = 0;  /* NULL terminate string */
+  return bit_string;
+}
+
+char *
+v64_bit_string(const v64_t *x) {
+  int i, mask, index;
+
+  for (i = index = 0; i < 8; i++) {
+    for (mask = 1; mask < 256; mask <<= 1)
+      if ((x->v8[i] & mask) == 0)
+	bit_string[index++] = '0';
+      else
+	bit_string[index++] = '1';
+  }
+  bit_string[index++] = 0;  /* NULL terminate string */
+  return bit_string;
+}
+
+char *
+v128_bit_string(v128_t *x) {
+  int j, index;
+  uint32_t mask;
+  
+  for (j=index=0; j < 4; j++) {
+    for (mask=0x80000000; mask > 0; mask >>= 1) {
+      if (x->v32[j] & mask)
+	bit_string[index] = '1';
+      else
+	bit_string[index] = '0';
+      ++index;
+    }
+  }
+  bit_string[128] = 0; /* null terminate string */
+
+  return bit_string;
+}
+
+uint8_t
+nibble_to_hex_char(uint8_t nibble) {
+  char buf[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
+		  '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+  return buf[nibble & 0xF];
+}
+
+char *
+octet_hex_string(uint8_t x) {
+
+  bit_string[0]  = nibble_to_hex_char(x >> 4);
+  bit_string[1]  = nibble_to_hex_char(x & 0xF);
+  
+  bit_string[2] = 0; /* null terminate string */
+  return bit_string;
+}
+
+char *
+octet_string_hex_string(const void *str, int length) {
+  const uint8_t *s = str;
+  int i;
+  
+  /* double length, since one octet takes two hex characters */
+  length *= 2;
+
+  /* truncate string if it would be too long */
+  if (length > MAX_STRING_LENGTH)
+    length = MAX_STRING_LENGTH-1;
+  
+  for (i=0; i < length; i+=2) {
+    bit_string[i]   = nibble_to_hex_char(*s >> 4);
+    bit_string[i+1] = nibble_to_hex_char(*s++ & 0xF);
+  }
+  bit_string[i] = 0; /* null terminate string */
+  return bit_string;
+}
+
+char *
+v16_hex_string(v16_t x) {
+  int i, j;
+
+  for (i=j=0; i < 2; i++) {
+    bit_string[j++]  = nibble_to_hex_char(x.v8[i] >> 4);
+    bit_string[j++]  = nibble_to_hex_char(x.v8[i] & 0xF);
+  }
+  
+  bit_string[j] = 0; /* null terminate string */
+  return bit_string;
+}
+
+char *
+v32_hex_string(v32_t x) {
+  int i, j;
+
+  for (i=j=0; i < 4; i++) {
+    bit_string[j++]  = nibble_to_hex_char(x.v8[i] >> 4);
+    bit_string[j++]  = nibble_to_hex_char(x.v8[i] & 0xF);
+  }
+  
+  bit_string[j] = 0; /* null terminate string */
+  return bit_string;
+}
+
+char *
+v64_hex_string(const v64_t *x) {
+  int i, j;
+
+  for (i=j=0; i < 8; i++) {
+    bit_string[j++]  = nibble_to_hex_char(x->v8[i] >> 4);
+    bit_string[j++]  = nibble_to_hex_char(x->v8[i] & 0xF);
+  }
+  
+  bit_string[j] = 0; /* null terminate string */
+  return bit_string;
+}
+
+char *
+v128_hex_string(v128_t *x) {
+  int i, j;
+
+  for (i=j=0; i < 16; i++) {
+    bit_string[j++]  = nibble_to_hex_char(x->v8[i] >> 4);
+    bit_string[j++]  = nibble_to_hex_char(x->v8[i] & 0xF);
+  }
+  
+  bit_string[j] = 0; /* null terminate string */
+  return bit_string;
+}
+
+char *
+char_to_hex_string(char *x, int num_char) {
+  int i, j;
+
+  if (num_char >= 16)
+    num_char = 16;
+  for (i=j=0; i < num_char; i++) {
+    bit_string[j++]  = nibble_to_hex_char(x[i] >> 4);
+    bit_string[j++]  = nibble_to_hex_char(x[i] & 0xF);
+  }
+  
+  bit_string[j] = 0; /* null terminate string */
+  return bit_string;
+}
+
+int
+hex_char_to_nibble(uint8_t c) {
+  switch(c) {
+  case ('0'): return 0x0;
+  case ('1'): return 0x1;
+  case ('2'): return 0x2;
+  case ('3'): return 0x3;
+  case ('4'): return 0x4;
+  case ('5'): return 0x5;
+  case ('6'): return 0x6;
+  case ('7'): return 0x7;
+  case ('8'): return 0x8;
+  case ('9'): return 0x9;
+  case ('a'): return 0xa;
+  case ('A'): return 0xa;
+  case ('b'): return 0xb;
+  case ('B'): return 0xb;
+  case ('c'): return 0xc;
+  case ('C'): return 0xc;
+  case ('d'): return 0xd;
+  case ('D'): return 0xd;
+  case ('e'): return 0xe;
+  case ('E'): return 0xe;
+  case ('f'): return 0xf;
+  case ('F'): return 0xf;
+  default: return -1;   /* this flags an error */
+  }
+  /* NOTREACHED */
+  return -1;  /* this keeps compilers from complaining */
+}
+
+int
+is_hex_string(char *s) {
+  while(*s != 0)
+    if (hex_char_to_nibble(*s++) == -1)
+      return 0;
+  return 1;
+}
+
+uint8_t
+hex_string_to_octet(char *s) {
+  uint8_t x;
+
+  x = (hex_char_to_nibble(s[0]) << 4)
+    | hex_char_to_nibble(s[1] & 0xFF);
+  
+  return x;
+}
+
+/*
+ * hex_string_to_octet_string converts a hexadecimal string
+ * of length 2 * len to a raw octet string of length len
+ */
+
+int
+hex_string_to_octet_string(char *raw, char *hex, int len) {
+  uint8_t x;
+  int tmp;
+  int hex_len;
+
+  hex_len = 0;
+  while (hex_len < len) {
+    tmp = hex_char_to_nibble(hex[0]);
+    if (tmp == -1)
+      return hex_len;
+    x = (tmp << 4);
+    hex_len++;
+    tmp = hex_char_to_nibble(hex[1]);
+    if (tmp == -1)
+      return hex_len;
+    x |= (tmp & 0xff);
+    hex_len++;
+    *raw++ = x;
+    hex += 2;
+  }
+  return hex_len;
+}
+
+v16_t
+hex_string_to_v16(char *s) {
+  v16_t x;
+  int i, j;
+
+  for (i=j=0; i < 4; i += 2, j++) {
+    x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
+      | hex_char_to_nibble(s[i+1] & 0xFF);
+  }
+  return x;
+}
+
+v32_t
+hex_string_to_v32(char *s) {
+  v32_t x;
+  int i, j;
+
+  for (i=j=0; i < 8; i += 2, j++) {
+    x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
+      | hex_char_to_nibble(s[i+1] & 0xFF);
+  }
+  return x;
+}
+
+v64_t
+hex_string_to_v64(char *s) {
+  v64_t x;
+  int i, j;
+
+  for (i=j=0; i < 16; i += 2, j++) {
+    x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
+      | hex_char_to_nibble(s[i+1] & 0xFF);
+  }
+  return x;
+}
+
+v128_t
+hex_string_to_v128(char *s) {
+  v128_t x;
+  int i, j;
+
+  for (i=j=0; i < 32; i += 2, j++) {
+    x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
+      | hex_char_to_nibble(s[i+1] & 0xFF);
+  }
+  return x;
+}
+
+
+
+/* 
+ * the matrix A[] is stored in column format, i.e., A[i] is the ith
+ * column of the matrix 
+ */
+
+uint8_t 
+A_times_x_plus_b(uint8_t A[8], uint8_t x, uint8_t b) {
+  int index = 0;
+  unsigned mask;
+  
+  for (mask=1; mask < 256; mask *= 2) {
+    if (x & mask)
+      b^= A[index];
+    ++index;
+  }
+
+  return b;
+}
+
+void
+v16_copy_octet_string(v16_t *x, const uint8_t s[2]) {
+  x->v8[0]  = s[0];
+  x->v8[1]  = s[1];
+}
+
+void
+v32_copy_octet_string(v32_t *x, const uint8_t s[4]) {
+  x->v8[0]  = s[0];
+  x->v8[1]  = s[1];
+  x->v8[2]  = s[2];
+  x->v8[3]  = s[3];
+}
+
+void
+v64_copy_octet_string(v64_t *x, const uint8_t s[8]) {
+  x->v8[0]  = s[0];
+  x->v8[1]  = s[1];
+  x->v8[2]  = s[2];
+  x->v8[3]  = s[3];
+  x->v8[4]  = s[4];
+  x->v8[5]  = s[5];
+  x->v8[6]  = s[6];
+  x->v8[7]  = s[7];
+}
+
+void
+v128_copy_octet_string(v128_t *x, const uint8_t s[16]) {
+  x->v8[0]  = s[0];
+  x->v8[1]  = s[1];
+  x->v8[2]  = s[2];
+  x->v8[3]  = s[3];
+  x->v8[4]  = s[4];
+  x->v8[5]  = s[5];
+  x->v8[6]  = s[6];
+  x->v8[7]  = s[7];
+  x->v8[8]  = s[8];
+  x->v8[9]  = s[9];
+  x->v8[10] = s[10];
+  x->v8[11] = s[11];
+  x->v8[12] = s[12];
+  x->v8[13] = s[13];
+  x->v8[14] = s[14];
+  x->v8[15] = s[15];
+
+}
+
+#ifndef DATATYPES_USE_MACROS /* little functions are not macros */
+
+void
+v128_set_to_zero(v128_t *x) {
+  _v128_set_to_zero(x);
+}
+
+void
+v128_copy(v128_t *x, const v128_t *y) {
+  _v128_copy(x, y);
+}
+
+void
+v128_xor(v128_t *z, v128_t *x, v128_t *y) {
+  _v128_xor(z, x, y);
+} 
+
+void
+v128_and(v128_t *z, v128_t *x, v128_t *y) {
+  _v128_and(z, x, y);
+}
+
+void
+v128_or(v128_t *z, v128_t *x, v128_t *y) {
+  _v128_or(z, x, y);
+}
+
+void
+v128_complement(v128_t *x) {
+  _v128_complement(x);
+}
+
+int
+v128_is_eq(const v128_t *x, const v128_t *y) {
+  return _v128_is_eq(x, y);
+}
+
+int
+v128_get_bit(const v128_t *x, int i) {
+  return _v128_get_bit(x, i);
+}
+
+void
+v128_set_bit(v128_t *x, int i) {
+  _v128_set_bit(x, i);
+}     
+
+void
+v128_clear_bit(v128_t *x, int i){
+  _v128_clear_bit(x, i);
+}    
+
+void
+v128_set_bit_to(v128_t *x, int i, int y){
+  _v128_set_bit_to(x, i, y);
+}
+
+
+#endif /* DATATYPES_USE_MACROS */
+
+
+static inline void
+v128_left_shift2(v128_t *x, int num_bits) {
+  int i;
+  int word_shift = num_bits >> 5;
+  int bit_shift  = num_bits & 31;
+
+  for (i=0; i < (4-word_shift); i++) {
+    x->v32[i] = x->v32[i+word_shift] << bit_shift;
+  }
+  
+  for (   ; i < word_shift; i++) {
+    x->v32[i] = 0;
+  }
+  
+}
+
+void
+v128_right_shift(v128_t *x, int index) {
+  const int base_index = index >> 5;
+  const int bit_index = index & 31;
+  int i, from;
+  uint32_t b;
+    
+  if (index > 127) {
+    v128_set_to_zero(x);
+    return;
+  }
+
+  if (bit_index == 0) {
+
+    /* copy each word from left size to right side */
+    x->v32[4-1] = x->v32[4-1-base_index];
+    for (i=4-1; i > base_index; i--) 
+      x->v32[i-1] = x->v32[i-1-base_index];
+
+  } else {
+    
+    /* set each word to the "or" of the two bit-shifted words */
+    for (i = 4; i > base_index; i--) {
+      from = i-1 - base_index;
+      b = x->v32[from] << bit_index;
+      if (from > 0)
+        b |= x->v32[from-1] >> (32-bit_index);
+      x->v32[i-1] = b;
+    }
+    
+  }
+
+  /* now wrap up the final portion */
+  for (i=0; i < base_index; i++) 
+    x->v32[i] = 0;
+  
+}
+
+void
+v128_left_shift(v128_t *x, int index) {
+  int i;
+  const int base_index = index >> 5;
+  const int bit_index = index & 31;
+
+  if (index > 127) {
+    v128_set_to_zero(x);
+    return;
+  } 
+  
+  if (bit_index == 0) {
+    for (i=0; i < 4 - base_index; i++)
+      x->v32[i] = x->v32[i+base_index];
+  } else {
+    for (i=0; i < 4 - base_index - 1; i++)
+      x->v32[i] = (x->v32[i+base_index] << bit_index) ^
+	(x->v32[i+base_index+1] >> (32 - bit_index));
+    x->v32[4 - base_index-1] = x->v32[4-1] << bit_index;
+  }
+
+  /* now wrap up the final portion */
+  for (i = 4 - base_index; i < 4; i++) 
+    x->v32[i] = 0;
+
+}
+
+
+#if 0
+void
+v128_add(v128_t *z, v128_t *x, v128_t *y) {
+  /* integer addition modulo 2^128    */
+
+#ifdef WORDS_BIGENDIAN
+  uint64_t tmp;
+    
+  tmp = x->v32[3] + y->v32[3];
+  z->v32[3] = (uint32_t) tmp;
+  
+  tmp =  x->v32[2] + y->v32[2] + (tmp >> 32);
+  z->v32[2] = (uint32_t) tmp;
+
+  tmp =  x->v32[1] + y->v32[1] + (tmp >> 32);
+  z->v32[1] = (uint32_t) tmp;
+  
+  tmp =  x->v32[0] + y->v32[0] + (tmp >> 32);
+  z->v32[0] = (uint32_t) tmp;
+
+#else /* assume little endian architecture */
+  uint64_t tmp;
+  
+  tmp = htonl(x->v32[3]) + htonl(y->v32[3]);
+  z->v32[3] = ntohl((uint32_t) tmp);
+  
+  tmp =  htonl(x->v32[2]) + htonl(y->v32[2]) + htonl(tmp >> 32);
+  z->v32[2] = ntohl((uint32_t) tmp);
+
+  tmp =  htonl(x->v32[1]) + htonl(y->v32[1]) + htonl(tmp >> 32);
+  z->v32[1] = ntohl((uint32_t) tmp);
+  
+  tmp =  htonl(x->v32[0]) + htonl(y->v32[0]) + htonl(tmp >> 32);
+  z->v32[0] = ntohl((uint32_t) tmp);
+
+#endif /* WORDS_BIGENDIAN */
+  
+}
+#endif
+
+int
+octet_string_is_eq(uint8_t *a, uint8_t *b, int len) {
+  uint8_t *end = b + len;
+  while (b < end)
+    if (*a++ != *b++)
+      return 1;
+  return 0;
+}
+
+void
+octet_string_set_to_zero(uint8_t *s, int len) {
+  uint8_t *end = s + len;
+
+  do {
+    *s = 0;
+  } while (++s < end);
+  
+}
+
+
+/* functions below not yet tested! */
+
+int
+v32_low_bit(v32_t *w) {
+  int value;
+
+  value = low_bit[w->v8[0]];
+  if (value != -1)
+    return value;
+  value = low_bit[w->v8[1]];
+  if (value != -1)
+    return value + 8;
+  value = low_bit[w->v8[2]];
+  if (value != -1)
+    return value + 16;
+  value = low_bit[w->v8[3]];
+  if (value == -1)
+    return -1;
+  return value + 24;
+}
+
+/* high_bit not done yet */
+
+
+
+
+
diff --git a/netwerk/srtp/src/crypto/math/stat.c b/netwerk/srtp/src/crypto/math/stat.c
new file mode 100644
index 000000000..8d1a5b972
--- /dev/null
+++ b/netwerk/srtp/src/crypto/math/stat.c
@@ -0,0 +1,402 @@
+/*
+ * stats.c
+ *
+ * statistical tests for randomness (FIPS 140-2, Section 4.9)
+ * 
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "stat.h"
+
+debug_module_t mod_stat = {
+  0,                 /* debugging is off by default */
+  (char *)"stat test"        /* printable module name       */
+};
+
+/*
+ * each test assumes that 20,000 bits (2500 octets) of data is
+ * provided as input
+ */
+
+#define STAT_TEST_DATA_LEN 2500
+
+err_status_t
+stat_test_monobit(uint8_t *data) {
+  uint8_t *data_end = data + STAT_TEST_DATA_LEN;
+  uint16_t ones_count;
+
+  ones_count = 0;
+  while (data < data_end) {
+    ones_count += octet_get_weight(*data);
+    data++;
+  }
+
+  debug_print(mod_stat, "bit count: %d", ones_count);
+  
+  if ((ones_count < 9725) || (ones_count > 10275))
+    return err_status_algo_fail;
+
+  return err_status_ok;
+}
+
+err_status_t
+stat_test_poker(uint8_t *data) {
+  int i;
+  uint8_t *data_end = data + STAT_TEST_DATA_LEN;
+  double poker;
+  uint16_t f[16] = {
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0
+  };
+  
+  while (data < data_end) {
+    f[*data & 0x0f]++;    /* increment freq. count for low nibble  */
+    f[(*data) >> 4]++;    /* increment freq. count for high nibble */
+    data++;
+  }
+
+  poker = 0.0;
+  for (i=0; i < 16; i++) 
+    poker += (double) f[i] * f[i];
+
+  poker *= (16.0 / 5000.0);
+  poker -= 5000.0;
+
+  debug_print(mod_stat, "poker test: %f\n", poker);
+    
+  if ((poker < 2.16) || (poker > 46.17))
+    return err_status_algo_fail;
+  
+  return err_status_ok;
+}
+
+
+/*
+ * runs[i] holds the number of runs of size (i-1)
+ */
+
+err_status_t
+stat_test_runs(uint8_t *data) {
+  uint8_t *data_end = data + STAT_TEST_DATA_LEN;
+  uint16_t runs[6] = { 0, 0, 0, 0, 0, 0 }; 
+  uint16_t gaps[6] = { 0, 0, 0, 0, 0, 0 };
+  uint16_t lo_value[6] = { 2315, 1114, 527, 240, 103, 103 };
+  uint16_t hi_value[6] = { 2685, 1386, 723, 384, 209, 209 };
+  int state = 0;
+  uint16_t mask;
+  int i;
+  
+  /*
+   * the state variable holds the number of bits in the
+   * current run (or gap, if negative)
+   */
+  
+  while (data < data_end) {
+
+    /* loop over the bits of this byte */
+    for (mask = 1; mask < 256; mask <<= 1) {
+      if (*data & mask) {
+
+ 	/* next bit is a one  */
+	if (state > 0) {
+
+	  /* prefix is a run, so increment the run-count  */
+	  state++;                          
+
+	  /* check for long runs */ 
+	  if (state > 25) {
+		debug_print(mod_stat, ">25 runs: %d", state);
+		return err_status_algo_fail;
+	  }
+
+	} else if (state < 0) {
+
+	  /* prefix is a gap  */
+	  if (state < -25) {
+		debug_print(mod_stat, ">25 gaps: %d", state);
+	    return err_status_algo_fail;    /* long-runs test failed   */
+	  }
+	  if (state < -6) {
+	    state = -6;                     /* group together gaps > 5 */
+	  }
+	  gaps[-1-state]++;                 /* increment gap count      */
+          state = 1;                        /* set state at one set bit */
+	} else {
+
+	  /* state is zero; this happens only at initialization        */
+	  state = 1;            
+	}
+      } else {
+
+	/* next bit is a zero  */
+	if (state > 0) {
+
+	  /* prefix is a run */
+	  if (state > 25) {
+		debug_print(mod_stat, ">25 runs (2): %d", state);
+	    return err_status_algo_fail;    /* long-runs test failed   */
+	  }
+	  if (state > 6) {
+	    state = 6;                      /* group together runs > 5 */
+	  }
+	  runs[state-1]++;                  /* increment run count       */
+          state = -1;                       /* set state at one zero bit */
+	} else if (state < 0) {
+
+	  /* prefix is a gap, so increment gap-count (decrement state) */
+	  state--;
+
+	  /* check for long gaps */ 
+	  if (state < -25) {
+		debug_print(mod_stat, ">25 gaps (2): %d", state);
+	    return err_status_algo_fail;
+	  }
+
+	} else {
+
+	  /* state is zero; this happens only at initialization        */
+	  state = -1;
+	}
+      }
+    }
+
+    /* move along to next octet */
+    data++;
+  }
+
+  if (mod_stat.on) {
+    debug_print(mod_stat, "runs test", NULL);
+    for (i=0; i < 6; i++)
+      debug_print(mod_stat, "  runs[]: %d", runs[i]);
+    for (i=0; i < 6; i++)
+      debug_print(mod_stat, "  gaps[]: %d", gaps[i]);
+  }
+
+  /* check run and gap counts against the fixed limits */
+  for (i=0; i < 6; i++) 
+    if (   (runs[i] < lo_value[i] ) || (runs[i] > hi_value[i])
+	|| (gaps[i] < lo_value[i] ) || (gaps[i] > hi_value[i]))
+      return err_status_algo_fail;
+
+  
+  return err_status_ok;
+}
+
+
+/*
+ * the function stat_test_rand_source applys the FIPS-140-2 statistical
+ * tests to the random source defined by rs
+ *
+ */
+
+#define RAND_SRC_BUF_OCTETS 50 /* this value MUST divide 2500! */ 
+
+err_status_t
+stat_test_rand_source(rand_source_func_t get_rand_bytes) {
+  int i;
+  double poker;
+  uint8_t *data, *data_end;
+  uint16_t f[16] = {
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0
+  };
+  uint8_t buffer[RAND_SRC_BUF_OCTETS];
+  err_status_t status;
+  int ones_count = 0;
+  uint16_t runs[6] = { 0, 0, 0, 0, 0, 0 }; 
+  uint16_t gaps[6] = { 0, 0, 0, 0, 0, 0 };
+  uint16_t lo_value[6] = { 2315, 1114, 527, 240, 103, 103 };
+  uint16_t hi_value[6] = { 2685, 1386, 723, 384, 209, 209 };
+  int state = 0;
+  uint16_t mask;
+  
+  /* counters for monobit, poker, and runs tests are initialized above */
+
+  /* main loop: fill buffer, update counters for stat tests */
+  for (i=0; i < 2500; i+=RAND_SRC_BUF_OCTETS) {
+    
+    /* fill data buffer */
+    status = get_rand_bytes(buffer, RAND_SRC_BUF_OCTETS);
+    if (status) {
+	  debug_print(mod_stat, "couldn't get rand bytes: %d",status);
+      return status;
+	}
+
+#if 0
+    debug_print(mod_stat, "%s", 
+		octet_string_hex_string(buffer, RAND_SRC_BUF_OCTETS));
+#endif
+  
+    data = buffer;
+    data_end = data + RAND_SRC_BUF_OCTETS;
+    while (data < data_end) {
+
+      /* update monobit test counter */
+      ones_count += octet_get_weight(*data);
+
+      /* update poker test counters */
+      f[*data & 0x0f]++;    /* increment freq. count for low nibble  */
+      f[(*data) >> 4]++;    /* increment freq. count for high nibble */
+
+      /* update runs test counters */
+      /* loop over the bits of this byte */
+      for (mask = 1; mask < 256; mask <<= 1) {
+	if (*data & mask) {
+	  
+	  /* next bit is a one  */
+	  if (state > 0) {
+	    
+	    /* prefix is a run, so increment the run-count  */
+	    state++;                          
+	    
+	    /* check for long runs */ 
+	    if (state > 25) {
+		  debug_print(mod_stat, ">25 runs (3): %d", state);
+	      return err_status_algo_fail;
+		}
+	    
+	  } else if (state < 0) {
+	    
+	    /* prefix is a gap  */
+	    if (state < -25) {
+		  debug_print(mod_stat, ">25 gaps (3): %d", state);
+	      return err_status_algo_fail;    /* long-runs test failed   */
+	    }
+	    if (state < -6) {
+	      state = -6;                     /* group together gaps > 5 */
+	    }
+	    gaps[-1-state]++;                 /* increment gap count      */
+	    state = 1;                        /* set state at one set bit */
+	  } else {
+	    
+	    /* state is zero; this happens only at initialization        */
+	    state = 1;            
+	  }
+	} else {
+	  
+	  /* next bit is a zero  */
+	  if (state > 0) {
+	    
+	    /* prefix is a run */
+	    if (state > 25) {
+		  debug_print(mod_stat, ">25 runs (4): %d", state);
+	      return err_status_algo_fail;    /* long-runs test failed   */
+	    }
+	    if (state > 6) {
+	      state = 6;                      /* group together runs > 5 */
+	    }
+	    runs[state-1]++;                  /* increment run count       */
+	    state = -1;                       /* set state at one zero bit */
+	  } else if (state < 0) {
+	    
+	    /* prefix is a gap, so increment gap-count (decrement state) */
+	    state--;
+	    
+	    /* check for long gaps */ 
+	    if (state < -25) {
+		  debug_print(mod_stat, ">25 gaps (4): %d", state);
+	      return err_status_algo_fail;
+		}
+	    
+	  } else {
+	    
+	    /* state is zero; this happens only at initialization        */
+	    state = -1;
+	  }
+	}
+      }
+      
+      /* advance data pointer */
+      data++;
+    }
+  }
+
+  /* check to see if test data is within bounds */
+
+  /* check monobit test data */
+
+  debug_print(mod_stat, "stat: bit count: %d", ones_count);
+  
+  if ((ones_count < 9725) || (ones_count > 10275)) {
+    debug_print(mod_stat, "stat: failed monobit test %d", ones_count);
+    return err_status_algo_fail;
+  }
+  
+  /* check poker test data */
+  poker = 0.0;
+  for (i=0; i < 16; i++) 
+    poker += (double) f[i] * f[i];
+
+  poker *= (16.0 / 5000.0);
+  poker -= 5000.0;
+
+  debug_print(mod_stat, "stat: poker test: %f", poker);
+    
+  if ((poker < 2.16) || (poker > 46.17)) {
+    debug_print(mod_stat, "stat: failed poker test", NULL);
+    return err_status_algo_fail;
+  }
+
+  /* check run and gap counts against the fixed limits */
+  for (i=0; i < 6; i++) 
+    if ((runs[i] < lo_value[i] ) || (runs[i] > hi_value[i])
+	 || (gaps[i] < lo_value[i] ) || (gaps[i] > hi_value[i])) {
+      debug_print(mod_stat, "stat: failed run/gap test", NULL);
+      return err_status_algo_fail; 
+    }
+
+  debug_print(mod_stat, "passed random stat test", NULL);
+  return err_status_ok;
+}
+
+err_status_t
+stat_test_rand_source_with_repetition(rand_source_func_t source, unsigned num_trials) {
+  unsigned int i;
+  err_status_t err = err_status_algo_fail;
+
+  for (i=0; i < num_trials; i++) {
+    err = stat_test_rand_source(source);
+    if (err == err_status_ok) {
+      return err_status_ok;  
+    }
+    debug_print(mod_stat, "failed stat test (try number %d)\n", i);
+  }
+  
+  return err;
+}
diff --git a/netwerk/srtp/src/crypto/replay/rdb.c b/netwerk/srtp/src/crypto/replay/rdb.c
new file mode 100644
index 000000000..ce76f64cb
--- /dev/null
+++ b/netwerk/srtp/src/crypto/replay/rdb.c
@@ -0,0 +1,137 @@
+/*
+ * rdb.c
+ *
+ * Implements a replay database for packet security
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "rdb.h"
+
+
+/*
+ * this implementation of a replay database works as follows:
+ * 
+ * window_start is the index of the first packet in the window
+ * bitmask      a bit-buffer, containing the most recently entered
+ *              index as the leftmost bit 
+ *
+ */
+
+/* rdb_init initalizes rdb */
+
+err_status_t
+rdb_init(rdb_t *rdb) {
+  v128_set_to_zero(&rdb->bitmask);
+  rdb->window_start = 0;
+  return err_status_ok;
+}
+
+/*
+ * rdb_check checks to see if index appears in rdb
+ */
+
+err_status_t
+rdb_check(const rdb_t *rdb, uint32_t p_index) {
+  
+  /* if the index appears after (or at very end of) the window, its good */
+  if (p_index >= rdb->window_start + rdb_bits_in_bitmask)
+    return err_status_ok;
+  
+  /* if the index appears before the window, its bad */
+  if (p_index < rdb->window_start)
+    return err_status_replay_old;
+
+  /* otherwise, the index appears within the window, so check the bitmask */
+  if (v128_get_bit(&rdb->bitmask, (p_index - rdb->window_start)) == 1)
+    return err_status_replay_fail;    
+      
+  /* otherwise, the index is okay */
+  return err_status_ok;
+}
+
+/*
+ * rdb_add_index adds index to rdb_t (and does *not* check if
+ * index appears in db)
+ *
+ * this function should be called only after rdb_check has
+ * indicated that the index does not appear in the rdb, e.g., a mutex
+ * should protect the rdb between these calls
+ */
+
+err_status_t
+rdb_add_index(rdb_t *rdb, uint32_t p_index) {
+  int delta;  
+
+  /* here we *assume* that p_index > rdb->window_start */
+
+  delta = (p_index - rdb->window_start);    
+  if (delta < (int)rdb_bits_in_bitmask) {
+
+    /* if the p_index is within the window, set the appropriate bit */
+    v128_set_bit(&rdb->bitmask, delta);
+
+  } else { 
+    
+    delta -= rdb_bits_in_bitmask - 1;
+
+    /* shift the window forward by delta bits*/
+    v128_left_shift(&rdb->bitmask, delta);
+    v128_set_bit(&rdb->bitmask, rdb_bits_in_bitmask-1);
+    rdb->window_start += delta;
+
+  }    
+
+  return err_status_ok;
+}
+
+err_status_t
+rdb_increment(rdb_t *rdb) {
+
+  if (rdb->window_start++ > 0x7fffffff)
+    return err_status_key_expired;
+  return err_status_ok;
+}
+
+uint32_t
+rdb_get_value(const rdb_t *rdb) {
+  return rdb->window_start;
+}
diff --git a/netwerk/srtp/src/crypto/replay/rdbx.c b/netwerk/srtp/src/crypto/replay/rdbx.c
new file mode 100644
index 000000000..1a0f85a81
--- /dev/null
+++ b/netwerk/srtp/src/crypto/replay/rdbx.c
@@ -0,0 +1,346 @@
+/*
+ * rdbx.c
+ *
+ * a replay database with extended range, using a rollover counter
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "rdbx.h"
+
+
+/*
+ * from RFC 3711:
+ *
+ * A receiver reconstructs the index i of a packet with sequence
+ *  number SEQ using the estimate
+ *
+ * i = 2^16 * v + SEQ,
+ *
+ * where v is chosen from the set { ROC-1, ROC, ROC+1 } such that i is
+ * closest to the value 2^16 * ROC + s_l.  If the value r+1 is used,
+ * then the rollover counter r in the cryptographic context is
+ * incremented by one (if the packet containing s is authentic).
+ */
+
+
+
+/*
+ * rdbx implementation notes
+ *
+ * A xtd_seq_num_t is essentially a sequence number for which some of
+ * the data on the wire are implicit.  It logically consists of a
+ * rollover counter and a sequence number; the sequence number is the
+ * explicit part, and the rollover counter is the implicit part.
+ *
+ * Upon receiving a sequence_number (e.g. in a newly received SRTP
+ * packet), the complete xtd_seq_num_t can be estimated by using a
+ * local xtd_seq_num_t as a basis.  This is done using the function
+ * index_guess(&local, &guess, seq_from_packet).  This function
+ * returns the difference of the guess and the local value.  The local
+ * xtd_seq_num_t can be moved forward to the guess using the function
+ * index_advance(&guess, delta), where delta is the difference.
+ * 
+ *
+ * A rdbx_t consists of a xtd_seq_num_t and a bitmask.  The index is highest
+ * sequence number that has been received, and the bitmask indicates
+ * which of the recent indicies have been received as well.  The
+ * highest bit in the bitmask corresponds to the index in the bitmask.
+ */
+
+
+void
+index_init(xtd_seq_num_t *pi) {
+#ifdef NO_64BIT_MATH
+  *pi = make64(0,0);
+#else
+  *pi = 0;
+#endif
+}
+
+void
+index_advance(xtd_seq_num_t *pi, sequence_number_t s) {
+#ifdef NO_64BIT_MATH
+  /* a > ~b means a+b will generate a carry */
+  /* s is uint16 here */
+  *pi = make64(high32(*pi) + (s > ~low32(*pi) ? 1 : 0),low32(*pi) + s);
+#else
+  *pi += s;
+#endif
+}
+
+
+/*
+ * index_guess(local, guess, s)
+ * 
+ * given a xtd_seq_num_t local (which represents the last
+ * known-to-be-good received xtd_seq_num_t) and a sequence number s
+ * (from a newly arrived packet), sets the contents of *guess to
+ * contain the best guess of the packet index to which s corresponds,
+ * and returns the difference between *guess and *local
+ *
+ * nota bene - the output is a signed integer, DON'T cast it to a
+ * unsigned integer!  
+ */
+
+int
+index_guess(const xtd_seq_num_t *local,
+		   xtd_seq_num_t *guess,
+		   sequence_number_t s) {
+#ifdef NO_64BIT_MATH
+  uint32_t local_roc = ((high32(*local) << 16) |
+						(low32(*local) >> 16));
+  uint16_t local_seq = (uint16_t) (low32(*local));
+#else
+  uint32_t local_roc = (uint32_t)(*local >> 16);
+  uint16_t local_seq = (uint16_t) *local;
+#endif
+  uint32_t guess_roc;
+  uint16_t guess_seq;
+  int difference;
+
+  if (local_seq < seq_num_median) {
+    if (s - local_seq > seq_num_median) {
+      guess_roc = local_roc - 1;
+      difference = seq_num_max - s + local_seq;
+    } else {
+      guess_roc = local_roc;
+      difference = s - local_seq;
+    }
+  } else {
+    if (local_seq - seq_num_median > s) {
+      guess_roc = local_roc+1;
+      difference = seq_num_max - local_seq + s;
+    } else {
+      difference = s - local_seq;
+      guess_roc = local_roc;
+    }
+  }
+  guess_seq = s;
+
+  /* Note: guess_roc is 32 bits, so this generates a 48-bit result! */
+#ifdef NO_64BIT_MATH
+  *guess = make64(guess_roc >> 16,
+				  (guess_roc << 16) | guess_seq);
+#else
+  *guess = (((uint64_t) guess_roc) << 16) | guess_seq;
+#endif
+
+  return difference;
+}
+
+/*
+ * rdbx
+ *
+ */
+
+
+/*
+ *  rdbx_init(&r, ws) initializes the rdbx_t pointed to by r with window size ws
+ */
+
+err_status_t
+rdbx_init(rdbx_t *rdbx, unsigned long ws) {
+  if (ws == 0)
+    return err_status_bad_param;
+
+  if (bitvector_alloc(&rdbx->bitmask, ws) != 0)
+    return err_status_alloc_fail;
+
+  index_init(&rdbx->index);
+
+  return err_status_ok;
+}
+
+/*
+ *  rdbx_dealloc(&r) frees memory for the rdbx_t pointed to by r
+ */
+
+err_status_t
+rdbx_dealloc(rdbx_t *rdbx) {
+  bitvector_dealloc(&rdbx->bitmask);
+
+  return err_status_ok;
+}
+
+/*
+ * rdbx_set_roc(rdbx, roc) initalizes the rdbx_t at the location rdbx
+ * to have the rollover counter value roc.  If that value is less than
+ * the current rollover counter value, then the function returns
+ * err_status_replay_old; otherwise, err_status_ok is returned.
+ * 
+ */
+
+err_status_t
+rdbx_set_roc(rdbx_t *rdbx, uint32_t roc) {
+  bitvector_set_to_zero(&rdbx->bitmask);
+
+#ifdef NO_64BIT_MATH
+  #error not yet implemented
+#else
+
+  /* make sure that we're not moving backwards */
+  if (roc < (rdbx->index >> 16))
+    return err_status_replay_old;
+
+  rdbx->index &= 0xffff;   /* retain lowest 16 bits */
+  rdbx->index |= ((uint64_t)roc) << 16;  /* set ROC */
+#endif
+
+  return err_status_ok;
+}
+
+/*
+ * rdbx_get_packet_index(rdbx) returns the value of the packet index
+ * for the rdbx_t pointed to by rdbx
+ * 
+ */
+
+xtd_seq_num_t
+rdbx_get_packet_index(const rdbx_t *rdbx) {
+  return rdbx->index;   
+}
+
+/*
+ * rdbx_get_window_size(rdbx) returns the value of the window size
+ * for the rdbx_t pointed to by rdbx
+ * 
+ */
+
+unsigned long
+rdbx_get_window_size(const rdbx_t *rdbx) {
+  return bitvector_get_length(&rdbx->bitmask);
+}
+
+/*
+ * rdbx_check(&r, delta) checks to see if the xtd_seq_num_t
+ * which is at rdbx->index + delta is in the rdb
+ */
+
+err_status_t
+rdbx_check(const rdbx_t *rdbx, int delta) {
+  
+  if (delta > 0) {       /* if delta is positive, it's good */
+    return err_status_ok;
+  } else if ((int)(bitvector_get_length(&rdbx->bitmask) - 1) + delta < 0) {   
+                         /* if delta is lower than the bitmask, it's bad */
+    return err_status_replay_old; 
+  } else if (bitvector_get_bit(&rdbx->bitmask, 
+			       (int)(bitvector_get_length(&rdbx->bitmask) - 1) + delta) == 1) {
+                         /* delta is within the window, so check the bitmask */
+    return err_status_replay_fail;    
+  }
+ /* otherwise, the index is okay */
+
+  return err_status_ok; 
+}
+
+/*
+ * rdbx_add_index adds the xtd_seq_num_t at rdbx->window_start + d to
+ * replay_db (and does *not* check if that xtd_seq_num_t appears in db)
+ *
+ * this function should be called only after replay_check has
+ * indicated that the index does not appear in the rdbx, e.g., a mutex
+ * should protect the rdbx between these calls if need be
+ */
+
+err_status_t
+rdbx_add_index(rdbx_t *rdbx, int delta) {
+  
+  if (delta > 0) {
+    /* shift forward by delta */
+    index_advance(&rdbx->index, delta);
+    bitvector_left_shift(&rdbx->bitmask, delta);
+    bitvector_set_bit(&rdbx->bitmask, bitvector_get_length(&rdbx->bitmask) - 1);
+  } else {
+    /* delta is in window */
+    bitvector_set_bit(&rdbx->bitmask, bitvector_get_length(&rdbx->bitmask) -1 + delta);
+  }
+
+  /* note that we need not consider the case that delta == 0 */
+  
+  return err_status_ok;
+}
+
+
+
+/*
+ * rdbx_estimate_index(rdbx, guess, s)
+ * 
+ * given an rdbx and a sequence number s (from a newly arrived packet),
+ * sets the contents of *guess to contain the best guess of the packet
+ * index to which s corresponds, and returns the difference between
+ * *guess and the locally stored synch info
+ */
+
+int
+rdbx_estimate_index(const rdbx_t *rdbx,
+		    xtd_seq_num_t *guess,
+		    sequence_number_t s) {
+
+  /*
+   * if the sequence number and rollover counter in the rdbx are
+   * non-zero, then use the index_guess(...) function, otherwise, just
+   * set the rollover counter to zero (since the index_guess(...)
+   * function might incorrectly guess that the rollover counter is
+   * 0xffffffff)
+   */
+
+#ifdef NO_64BIT_MATH
+  /* seq_num_median = 0x8000 */
+  if (high32(rdbx->index) > 0 ||
+	  low32(rdbx->index) > seq_num_median)
+#else
+  if (rdbx->index > seq_num_median)
+#endif
+    return index_guess(&rdbx->index, guess, s);
+  
+#ifdef NO_64BIT_MATH
+  *guess = make64(0,(uint32_t) s);
+#else  
+  *guess = s;
+#endif
+
+#ifdef NO_64BIT_MATH
+  return s - (uint16_t) low32(rdbx->index);
+#else
+  return s - (uint16_t) rdbx->index;
+#endif
+}
diff --git a/netwerk/srtp/src/crypto/replay/ut_sim.c b/netwerk/srtp/src/crypto/replay/ut_sim.c
new file mode 100644
index 000000000..43c411e46
--- /dev/null
+++ b/netwerk/srtp/src/crypto/replay/ut_sim.c
@@ -0,0 +1,105 @@
+/*
+ * ut_sim.c
+ *
+ * an unreliable transport simulator
+ * (for testing replay databases and suchlike)
+ * 
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "ut_sim.h"
+
+
+int
+ut_compar(const void *a, const void *b) {
+  return rand() > (RAND_MAX/2) ? -1 : 1;
+}
+
+void
+ut_init(ut_connection *utc) {
+  int i;
+  utc->index = 0;
+
+  for (i=0; i < UT_BUF; i++)
+    utc->buffer[i] = i;
+  
+  qsort(utc->buffer, UT_BUF, sizeof(uint32_t), ut_compar);
+
+  utc->index = UT_BUF - 1;
+}
+
+uint32_t
+ut_next_index(ut_connection *utc) {
+  uint32_t tmp;
+
+  tmp = utc->buffer[0];
+  utc->index++;
+  utc->buffer[0] = utc->index;
+
+  qsort(utc->buffer, UT_BUF, sizeof(uint32_t), ut_compar);
+  
+  return tmp;
+}
+
+
+
+#ifdef UT_TEST
+
+#include <stdio.h>
+
+int
+main() {
+  uint32_t i, irecvd, idiff;
+  ut_connection utc;
+
+  ut_init(&utc);
+
+  for (i=0; i < 1000; i++) {
+    irecvd = ut_next_index(&utc);
+    idiff = i - irecvd;
+    printf("%lu\t%lu\t%d\n", i, irecvd, idiff);
+  }
+  
+  return 0;
+}
+
+
+#endif
diff --git a/netwerk/srtp/src/crypto/rng/ctr_prng.c b/netwerk/srtp/src/crypto/rng/ctr_prng.c
new file mode 100644
index 000000000..41d46a8f5
--- /dev/null
+++ b/netwerk/srtp/src/crypto/rng/ctr_prng.c
@@ -0,0 +1,108 @@
+/*
+ * ctr_prng.c 
+ *
+ * counter mode based pseudorandom source
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "prng.h"
+
+/* single, global prng structure */
+
+ctr_prng_t ctr_prng;
+
+err_status_t
+ctr_prng_init(rand_source_func_t random_source) {
+  uint8_t tmp_key[32];
+  err_status_t status;
+
+  /* initialize output count to zero */
+  ctr_prng.octet_count = 0;
+
+  /* set random source */
+  ctr_prng.rand = random_source;
+  
+  /* initialize secret key from random source */
+  status = random_source(tmp_key, 32);
+  if (status) 
+    return status;
+
+  /* initialize aes ctr context with random key */
+  status = aes_icm_context_init(&ctr_prng.state, tmp_key, 30);
+  if (status) 
+    return status;
+
+  return err_status_ok;
+}
+
+err_status_t
+ctr_prng_get_octet_string(void *dest, uint32_t len) {
+  err_status_t status;
+
+  /* 
+   * if we need to re-initialize the prng, do so now 
+   *
+   * avoid 32-bit overflows by subtracting instead of adding
+   */
+  if (ctr_prng.octet_count > MAX_PRNG_OUT_LEN - len) {
+    status = ctr_prng_init(ctr_prng.rand);    
+    if (status)
+      return status;
+  }
+  ctr_prng.octet_count += len;
+
+  /*
+   * write prng output 
+   */
+  status = aes_icm_output(&ctr_prng.state, (uint8_t*)dest, len);
+  if (status)
+    return status;
+  
+  return err_status_ok;
+}
+
+err_status_t
+ctr_prng_deinit(void) {
+
+  /* nothing */
+  
+  return err_status_ok;  
+}
diff --git a/netwerk/srtp/src/crypto/rng/prng.c b/netwerk/srtp/src/crypto/rng/prng.c
new file mode 100644
index 000000000..62b5e11d4
--- /dev/null
+++ b/netwerk/srtp/src/crypto/rng/prng.c
@@ -0,0 +1,180 @@
+/*
+ * prng.c 
+ *
+ * pseudorandom source
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include "prng.h"
+
+/* single, global prng structure */
+
+x917_prng_t x917_prng;
+
+err_status_t
+x917_prng_init(rand_source_func_t random_source) {
+  uint8_t tmp_key[16];
+  err_status_t status;
+
+  /* initialize output count to zero */
+  x917_prng.octet_count = 0;
+
+  /* set random source */
+  x917_prng.rand = random_source;
+  
+  /* initialize secret key from random source */
+  status = random_source(tmp_key, 16);
+  if (status) 
+    return status;
+
+  /* expand aes key */
+  aes_expand_encryption_key(tmp_key, 16, &x917_prng.key);
+
+  /* initialize prng state from random source */
+  status = x917_prng.rand((uint8_t *)&x917_prng.state, 16);
+  if (status) 
+    return status;
+
+  return err_status_ok;
+}
+
+err_status_t
+x917_prng_get_octet_string(uint8_t *dest, uint32_t len) {
+  uint32_t t;
+  v128_t buffer;
+  uint32_t i, tail_len;
+  err_status_t status;
+
+  /* 
+   * if we need to re-initialize the prng, do so now 
+   *
+   * avoid overflows by subtracting instead of adding
+   */
+  if (x917_prng.octet_count > MAX_PRNG_OUT_LEN - len) {
+    status = x917_prng_init(x917_prng.rand);    
+    if (status)
+      return status;
+  }
+  x917_prng.octet_count += len;
+  
+  /* find out the time */
+  t = (uint32_t)time(NULL);
+  
+  /* loop until we have output enough data */
+  for (i=0; i < len/16; i++) {
+    
+    /* exor time into state */
+    x917_prng.state.v32[0] ^= t; 
+ 
+    /* copy state into buffer */
+    v128_copy(&buffer, &x917_prng.state);
+
+    /* apply aes to buffer */
+    aes_encrypt(&buffer, &x917_prng.key);
+    
+    /* write data to output */
+    *dest++ = buffer.v8[0];
+    *dest++ = buffer.v8[1];
+    *dest++ = buffer.v8[2];
+    *dest++ = buffer.v8[3];
+    *dest++ = buffer.v8[4];
+    *dest++ = buffer.v8[5];
+    *dest++ = buffer.v8[6];
+    *dest++ = buffer.v8[7];
+    *dest++ = buffer.v8[8];
+    *dest++ = buffer.v8[9];
+    *dest++ = buffer.v8[10];
+    *dest++ = buffer.v8[11];
+    *dest++ = buffer.v8[12];
+    *dest++ = buffer.v8[13];
+    *dest++ = buffer.v8[14];
+    *dest++ = buffer.v8[15];
+
+    /* exor time into buffer */
+    buffer.v32[0] ^= t;
+
+    /* encrypt buffer */
+    aes_encrypt(&buffer, &x917_prng.key);
+
+    /* copy buffer into state */
+    v128_copy(&x917_prng.state, &buffer);
+    
+  }
+  
+  /* if we need to output any more octets, we'll do so now */
+  tail_len = len % 16;
+  if (tail_len) {
+    
+    /* exor time into state */
+    x917_prng.state.v32[0] ^= t; 
+ 
+    /* copy value into buffer */
+    v128_copy(&buffer, &x917_prng.state);
+
+    /* apply aes to buffer */
+    aes_encrypt(&buffer, &x917_prng.key);
+
+    /* write data to output */
+    for (i=0; i < tail_len; i++) {
+      *dest++ = buffer.v8[i];
+    }
+
+    /* now update the state one more time */
+
+    /* exor time into buffer */
+    buffer.v32[0] ^= t;
+
+    /* encrypt buffer */
+    aes_encrypt(&buffer, &x917_prng.key);
+
+    /* copy buffer into state */
+    v128_copy(&x917_prng.state, &buffer);
+
+  }
+  
+  return err_status_ok;
+}
+
+err_status_t
+x917_prng_deinit(void) {
+  
+  return err_status_ok;  
+}
diff --git a/netwerk/srtp/src/crypto/rng/rand_linux_kernel.c b/netwerk/srtp/src/crypto/rng/rand_linux_kernel.c
new file mode 100644
index 000000000..c51978e5e
--- /dev/null
+++ b/netwerk/srtp/src/crypto/rng/rand_linux_kernel.c
@@ -0,0 +1,65 @@
+/*
+ * rand_linux_kernel.c
+ *
+ * implements a random source using Linux kernel functions
+ *
+ * Marcus Sundberg
+ * Ingate Systems AB
+ */
+/*
+ *	
+ * Copyright(c) 2005 Ingate Systems AB
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the author(s) nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "config.h"
+#include "rand_source.h"
+
+
+err_status_t
+rand_source_init(void) {
+  return err_status_ok;
+}
+
+err_status_t
+rand_source_get_octet_string(void *dest, uint32_t len) {
+
+  get_random_bytes(dest, len);
+
+  return err_status_ok;
+}
+
+err_status_t
+rand_source_deinit(void) {
+  return err_status_ok;  
+}
diff --git a/netwerk/srtp/src/crypto/rng/rand_source.c b/netwerk/srtp/src/crypto/rng/rand_source.c
new file mode 100644
index 000000000..1eb6fbb09
--- /dev/null
+++ b/netwerk/srtp/src/crypto/rng/rand_source.c
@@ -0,0 +1,158 @@
+/*
+ * rand_source.c
+ *
+ * implements a random source based on /dev/random
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "config.h"
+
+#ifdef DEV_URANDOM
+# include <fcntl.h>          /* for open()  */
+# include <unistd.h>         /* for close() */
+#elif defined(HAVE_RAND_S)
+# define _CRT_RAND_S
+# include <stdlib.h>         
+#else
+# include <stdio.h>
+#endif
+
+#include "rand_source.h"
+
+
+/* 
+ * global dev_rand_fdes is file descriptor for /dev/random 
+ * 
+ * This variable is also used to indicate that the random source has
+ * been initialized.  When this variable is set to the value of the
+ * #define RAND_SOURCE_NOT_READY, it indicates that the random source
+ * is not ready to be used.  The value of the #define
+ * RAND_SOURCE_READY is for use whenever that variable is used as an
+ * indicator of the state of the random source, but not as a file
+ * descriptor.
+ */
+
+#define RAND_SOURCE_NOT_READY (-1)
+#define RAND_SOURCE_READY     (17)
+
+static int dev_random_fdes = RAND_SOURCE_NOT_READY;
+
+
+err_status_t
+rand_source_init(void) {
+  if (dev_random_fdes >= 0) {
+    /* already open */
+    return err_status_ok;
+  }
+#ifdef DEV_URANDOM
+  /* open random source for reading */
+  dev_random_fdes = open(DEV_URANDOM, O_RDONLY);
+  if (dev_random_fdes < 0)
+    return err_status_init_fail;
+#elif defined(HAVE_RAND_S)
+  dev_random_fdes = RAND_SOURCE_READY;
+#else
+  /* no random source available; let the user know */
+  fprintf(stderr, "WARNING: no real random source present!\n");
+  dev_random_fdes = RAND_SOURCE_READY;
+#endif
+  return err_status_ok;
+}
+
+err_status_t
+rand_source_get_octet_string(void *dest, uint32_t len) {
+
+  /* 
+   * read len octets from /dev/random to dest, and
+   * check return value to make sure enough octets were
+   * written 
+   */
+#ifdef DEV_URANDOM
+  uint8_t *dst = (uint8_t *)dest;
+  while (len)
+  {
+    ssize_t num_read = read(dev_random_fdes, dst, len);
+    if (num_read <= 0 || num_read > len)
+      return err_status_fail;
+    len -= num_read;
+    dst += num_read;
+  }
+#elif defined(HAVE_RAND_S)
+  uint8_t *dst = (uint8_t *)dest;
+  while (len)
+  {
+    unsigned int val;
+    errno_t err = rand_s(&val);
+
+    if (err != 0)
+      return err_status_fail;
+  
+    *dst++ = val & 0xff;
+    len--;
+  }
+#else
+  /* Generic C-library (rand()) version */
+  /* This is a random source of last resort */
+  uint8_t *dst = (uint8_t *)dest;
+  while (len)
+  {
+	  int val = rand();
+	  /* rand() returns 0-32767 (ugh) */
+	  /* Is this a good enough way to get random bytes?
+	     It is if it passes FIPS-140... */
+	  *dst++ = val & 0xff;
+	  len--;
+  }
+#endif
+  return err_status_ok;
+}
+ 
+err_status_t
+rand_source_deinit(void) {
+  if (dev_random_fdes < 0)
+    return err_status_dealloc_fail;  /* well, we haven't really failed, *
+				      * but there is something wrong    */
+#ifdef DEV_URANDOM
+  close(dev_random_fdes);  
+#endif
+  dev_random_fdes = RAND_SOURCE_NOT_READY;
+  
+  return err_status_ok;  
+}
diff --git a/netwerk/srtp/src/crypto/test/aes_calc.c b/netwerk/srtp/src/crypto/test/aes_calc.c
new file mode 100644
index 000000000..a5b390dd3
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/aes_calc.c
@@ -0,0 +1,154 @@
+/*
+ * aes_calc.c
+ * 
+ * A simple AES calculator for generating AES encryption values
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+  
+ Example usage (with first NIST FIPS 197 test case):
+ 
+[sh]$ test/aes_calc 000102030405060708090a0b0c0d0e0f 00112233445566778899aabbccddeeff -v
+ plaintext:      00112233445566778899aabbccddeeff
+ key:            000102030405060708090a0b0c0d0e0f
+ ciphertext:     69c4e0d86a7b0430d8cdb78070b4c55a
+
+ */
+
+#include "aes.h"
+#include <stdio.h>
+#include <string.h>
+
+void
+usage(char *prog_name) {
+  printf("usage: %s <key> <plaintext> [-v]\n", prog_name);
+  exit(255);
+}
+
+#define AES_MAX_KEY_LEN 32
+
+int
+main (int argc, char *argv[]) {
+  v128_t data;
+  uint8_t key[AES_MAX_KEY_LEN];
+  aes_expanded_key_t exp_key;
+  int key_len, len;
+  int verbose;
+  err_status_t status;
+
+  if (argc == 3) {
+    /* we're not in verbose mode */
+    verbose = 0;
+  } else if (argc == 4) {
+    if (strncmp(argv[3], "-v", 2) == 0) {
+      /* we're in verbose mode */
+      verbose = 1;
+    } else {
+      /* unrecognized flag, complain and exit */
+      usage(argv[0]);
+    }
+  } else {
+    /* we've been fed the wrong number of arguments - compain and exit */
+    usage(argv[0]);
+  }
+  
+  /* read in key, checking length */
+  if (strlen(argv[1]) > AES_MAX_KEY_LEN*2) {
+    fprintf(stderr, 
+	    "error: too many digits in key "
+	    "(should be at most %d hexadecimal digits, found %u)\n",
+	    AES_MAX_KEY_LEN*2, (unsigned)strlen(argv[1]));
+    exit(1);    
+  }
+  len = hex_string_to_octet_string((char*)key, argv[1], AES_MAX_KEY_LEN*2);
+  /* check that hex string is the right length */
+  if (len != 32 && len != 48 && len != 64) {
+    fprintf(stderr, 
+	    "error: bad number of digits in key "
+	    "(should be 32/48/64 hexadecimal digits, found %d)\n",
+	    len);
+    exit(1);    
+  } 
+  key_len = len/2;
+      
+  /* read in plaintext, checking length */
+  if (strlen(argv[2]) > 16*2) {
+    fprintf(stderr, 
+	    "error: too many digits in plaintext "
+	    "(should be %d hexadecimal digits, found %u)\n",
+	    16*2, (unsigned)strlen(argv[2]));
+    exit(1);    
+  }
+  len = hex_string_to_octet_string((char *)(&data), argv[2], 16*2);
+  /* check that hex string is the right length */
+  if (len < 16*2) {
+    fprintf(stderr, 
+	    "error: too few digits in plaintext "
+	    "(should be %d hexadecimal digits, found %d)\n",
+	    16*2, len);
+    exit(1);    
+  }
+
+  if (verbose) {
+    /* print out plaintext */
+    printf("plaintext:\t%s\n", octet_string_hex_string((uint8_t *)&data, 16));
+  }
+
+  /* encrypt plaintext */
+  status = aes_expand_encryption_key(key, key_len, &exp_key);
+  if (status) {
+    fprintf(stderr,
+	    "error: AES key expansion failed.\n");
+    exit(1);
+  }
+
+  aes_encrypt(&data, &exp_key);
+
+  /* write ciphertext to output */
+  if (verbose) {
+    printf("key:\t\t%s\n", octet_string_hex_string(key, key_len));
+    printf("ciphertext:\t");
+  }
+  printf("%s\n", v128_hex_string(&data));
+
+  return 0;
+}
+
diff --git a/netwerk/srtp/src/crypto/test/auth_driver.c b/netwerk/srtp/src/crypto/test/auth_driver.c
new file mode 100644
index 000000000..cd8a75dd0
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/auth_driver.c
@@ -0,0 +1,200 @@
+/*
+ * auth_driver.c
+ *
+ * a driver for auth functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include <stdio.h>    /* for printf() */
+#include <stdlib.h>   /* for xalloc() */
+#include <unistd.h>   /* for getopt() */
+
+#include "auth.h"
+#include "null_auth.h"
+
+#define PRINT_DEBUG_DATA 0
+
+extern auth_type_t tmmhv2;
+
+const uint16_t msg0[9] = {
+  0x6015, 0xf141, 0x5ba1, 0x29a0, 0xf604, 0xd1c, 0x2d9, 0xaa8a, 0x7931
+};
+
+/* key1 is for TAG_WORDS = 2 */
+
+const uint16_t key1[47] = {
+  0xe627, 0x6a01, 0x5ea7, 0xf27a, 0xc536, 0x2192, 0x11be, 0xea35,
+  0xdb9d, 0x63d6, 0xfa8a, 0xfc45, 0xe08b, 0xd216, 0xced2, 0x7853,
+  0x1a82, 0x22f5, 0x90fb, 0x1c29, 0x708e, 0xd06f, 0x82c3, 0xbee6,
+  0x4f21, 0x6f33, 0x65c0, 0xd211, 0xc25e, 0x9138, 0x4fa3, 0x7c1f,
+  0x61ac, 0x3489, 0x2976, 0x8c19, 0x8252, 0xddbf, 0xcad3, 0xc28f,
+  0x68d6, 0x58dd, 0x504f, 0x2bbf, 0x0278, 0x70b7, 0xcfca
+};
+
+double
+auth_bits_per_second(auth_t *h, int msg_len);
+
+
+void
+usage(char *prog_name) {
+  printf("usage: %s [ -t | -v ]\n", prog_name);
+  exit(255);
+}
+
+#define MAX_MSG_LEN 2048
+
+int
+main (int argc, char *argv[]) {
+  auth_t *a = NULL;
+  err_status_t status;
+  int i;
+  int c;
+  unsigned do_timing_test = 0;
+  unsigned do_validation = 0;
+
+  /* process input arguments */
+  while (1) {
+    c = getopt(argc, argv, "tv");
+    if (c == -1) 
+      break;
+    switch (c) {
+    case 't':
+      do_timing_test = 1;
+      break;
+    case 'v':
+      do_validation = 1;
+      break;
+    default:
+      usage(argv[0]);
+    }    
+  }
+  
+  printf("auth driver\nDavid A. McGrew\nCisco Systems, Inc.\n");
+
+  if (!do_validation && !do_timing_test)
+    usage(argv[0]);
+
+  if (do_validation) {
+    printf("running self-test for %s...", tmmhv2.description);
+    status = tmmhv2_add_big_test();
+    if (status) {
+      printf("tmmhv2_add_big_test failed with error code %d\n", status);
+      exit(status);
+    }  
+    status = auth_type_self_test(&tmmhv2);
+    if (status) {
+      printf("failed with error code %d\n", status);
+      exit(status);
+    }
+    printf("passed\n");
+  }
+
+  if (do_timing_test) {
+
+    /* tmmhv2 timing test */
+    status = auth_type_alloc(&tmmhv2, &a, 94, 4);
+    if (status) {
+      fprintf(stderr, "can't allocate tmmhv2\n");
+      exit(status);
+    }
+    status = auth_init(a, (uint8_t *)key1);
+    if (status) {
+      printf("error initializaing auth function\n");
+      exit(status);
+    }
+    
+    printf("timing %s (tag length %d)\n", 
+	   tmmhv2.description, auth_get_tag_length(a));
+    for (i=8; i <= MAX_MSG_LEN; i *= 2)
+      printf("msg len: %d\tgigabits per second: %f\n",
+	     i, auth_bits_per_second(a, i) / 1E9);
+
+    status = auth_dealloc(a);
+    if (status) {
+      printf("error deallocating auth function\n");
+      exit(status);
+    }
+    
+  }
+
+  return 0;
+}
+
+#define NUM_TRIALS 100000
+
+#include <time.h>
+
+double
+auth_bits_per_second(auth_t *a, int msg_len_octets) {
+  int i;
+  clock_t timer;
+  uint8_t *result;
+  int msg_len = (msg_len_octets + 1)/2;
+  uint16_t *msg_string; 
+
+  /* create random message */
+  msg_string = (uint16_t *) crypto_alloc(msg_len_octets);
+  if (msg_string == NULL)
+    return 0.0; /* indicate failure */  
+  for (i=0; i < msg_len; i++) 
+    msg_string[i] = (uint16_t) random();
+
+  /* allocate temporary storage for authentication tag */
+  result = crypto_alloc(auth_get_tag_length(a));
+  if (result == NULL) {
+    free(msg_string);
+    return 0.0; /* indicate failure */  
+  }
+  
+  timer = clock();
+  for (i=0; i < NUM_TRIALS; i++) {
+    auth_compute(a, (uint8_t *)msg_string, msg_len_octets, (uint8_t *)result);
+  }
+  timer = clock() - timer;
+
+  free(msg_string);
+  free(result);
+  
+  return (double) NUM_TRIALS * 8 * msg_len_octets * CLOCKS_PER_SEC / timer;
+}
+
+
diff --git a/netwerk/srtp/src/crypto/test/cipher_driver.c b/netwerk/srtp/src/crypto/test/cipher_driver.c
new file mode 100644
index 000000000..ea41ff5a4
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/cipher_driver.c
@@ -0,0 +1,531 @@
+/*
+ * cipher_driver.c
+ *
+ * A driver for the generic cipher type
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>           /* for printf() */
+#include <stdlib.h>          /* for rand() */
+#include <string.h>          /* for memset() */
+#include <unistd.h>          /* for getopt() */
+#include "cipher.h"
+#include "aes_icm.h"
+#include "null_cipher.h"
+
+#define PRINT_DEBUG 0
+
+void
+cipher_driver_test_throughput(cipher_t *c);
+
+err_status_t
+cipher_driver_self_test(cipher_type_t *ct);
+
+
+/*
+ * cipher_driver_test_buffering(ct) tests the cipher's output
+ * buffering for correctness by checking the consistency of succesive
+ * calls
+ */
+
+err_status_t
+cipher_driver_test_buffering(cipher_t *c);
+
+
+/*
+ * functions for testing cipher cache thrash
+ */
+err_status_t
+cipher_driver_test_array_throughput(cipher_type_t *ct, 
+				    int klen, int num_cipher);
+
+void
+cipher_array_test_throughput(cipher_t *ca[], int num_cipher);
+
+uint64_t
+cipher_array_bits_per_second(cipher_t *cipher_array[], int num_cipher, 
+			     unsigned octets_in_buffer, int num_trials);
+
+err_status_t
+cipher_array_delete(cipher_t *cipher_array[], int num_cipher);
+
+err_status_t
+cipher_array_alloc_init(cipher_t ***cipher_array, int num_ciphers,
+			cipher_type_t *ctype, int klen);
+
+void
+usage(char *prog_name) {
+  printf("usage: %s [ -t | -v | -a ]\n", prog_name);
+  exit(255);
+}
+
+void
+check_status(err_status_t s) {
+  if (s) {
+    printf("error (code %d)\n", s);
+    exit(s);
+  }
+  return;
+}
+
+/*
+ * null_cipher, aes_icm, and aes_cbc are the cipher meta-objects
+ * defined in the files in crypto/cipher subdirectory.  these are
+ * declared external so that we can use these cipher types here
+ */
+
+extern cipher_type_t null_cipher;
+extern cipher_type_t aes_icm;
+extern cipher_type_t aes_cbc;
+
+int
+main(int argc, char *argv[]) {
+  cipher_t *c = NULL;
+  err_status_t status;
+  unsigned char test_key[48] = {
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+    0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+    0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+  };
+  int q;
+  unsigned do_timing_test = 0;
+  unsigned do_validation = 0;
+  unsigned do_array_timing_test = 0;
+
+  /* process input arguments */
+  while (1) {
+    q = getopt(argc, argv, "tva");
+    if (q == -1) 
+      break;
+    switch (q) {
+    case 't':
+      do_timing_test = 1;
+      break;
+    case 'v':
+      do_validation = 1;
+      break;
+    case 'a':
+      do_array_timing_test = 1;
+      break;
+    default:
+      usage(argv[0]);
+    }    
+  }
+   
+  printf("cipher test driver\n"
+	 "David A. McGrew\n"
+	 "Cisco Systems, Inc.\n");
+
+  if (!do_validation && !do_timing_test && !do_array_timing_test)
+    usage(argv[0]);
+
+   /* arry timing (cache thrash) test */
+  if (do_array_timing_test) {
+    int max_num_cipher = 1 << 16;   /* number of ciphers in cipher_array */
+    int num_cipher;
+    
+    for (num_cipher=1; num_cipher < max_num_cipher; num_cipher *=8)
+      cipher_driver_test_array_throughput(&null_cipher, 0, num_cipher); 
+
+    for (num_cipher=1; num_cipher < max_num_cipher; num_cipher *=8)
+      cipher_driver_test_array_throughput(&aes_icm, 30, num_cipher); 
+
+    for (num_cipher=1; num_cipher < max_num_cipher; num_cipher *=8)
+      cipher_driver_test_array_throughput(&aes_icm, 46, num_cipher); 
+
+    for (num_cipher=1; num_cipher < max_num_cipher; num_cipher *=8)
+      cipher_driver_test_array_throughput(&aes_cbc, 16, num_cipher); 
+ 
+    for (num_cipher=1; num_cipher < max_num_cipher; num_cipher *=8)
+      cipher_driver_test_array_throughput(&aes_cbc, 32, num_cipher); 
+  }
+
+  if (do_validation) {
+    cipher_driver_self_test(&null_cipher);
+    cipher_driver_self_test(&aes_icm);
+    cipher_driver_self_test(&aes_cbc);
+  }
+
+  /* do timing and/or buffer_test on null_cipher */
+  status = cipher_type_alloc(&null_cipher, &c, 0); 
+  check_status(status);
+
+  status = cipher_init(c, NULL, direction_encrypt);
+  check_status(status);
+
+  if (do_timing_test) 
+    cipher_driver_test_throughput(c);
+  if (do_validation) {
+    status = cipher_driver_test_buffering(c);
+    check_status(status);
+  }
+  status = cipher_dealloc(c);
+  check_status(status);
+  
+
+  /* run the throughput test on the aes_icm cipher (128-bit key) */
+    status = cipher_type_alloc(&aes_icm, &c, 30);  
+    if (status) {
+      fprintf(stderr, "error: can't allocate cipher\n");
+      exit(status);
+    }
+
+    status = cipher_init(c, test_key, direction_encrypt);
+    check_status(status);
+
+    if (do_timing_test)
+      cipher_driver_test_throughput(c);
+    
+    if (do_validation) {
+      status = cipher_driver_test_buffering(c);
+      check_status(status);
+    }
+    
+    status = cipher_dealloc(c);
+    check_status(status);
+
+  /* repeat the tests with 256-bit keys */
+    status = cipher_type_alloc(&aes_icm, &c, 46);  
+    if (status) {
+      fprintf(stderr, "error: can't allocate cipher\n");
+      exit(status);
+    }
+
+    status = cipher_init(c, test_key, direction_encrypt);
+    check_status(status);
+
+    if (do_timing_test)
+      cipher_driver_test_throughput(c);
+    
+    if (do_validation) {
+      status = cipher_driver_test_buffering(c);
+      check_status(status);
+    }
+    
+    status = cipher_dealloc(c);
+    check_status(status);
+  
+  return 0;
+}
+
+void
+cipher_driver_test_throughput(cipher_t *c) {
+  int i;
+  int min_enc_len = 32;     
+  int max_enc_len = 2048;   /* should be a power of two */
+  int num_trials = 1000000;  
+  
+  printf("timing %s throughput, key length %d:\n", c->type->description, c->key_len);
+  fflush(stdout);
+  for (i=min_enc_len; i <= max_enc_len; i = i * 2)
+    printf("msg len: %d\tgigabits per second: %f\n",
+	   i, cipher_bits_per_second(c, i, num_trials) / 1e9);
+
+}
+
+err_status_t
+cipher_driver_self_test(cipher_type_t *ct) {
+  err_status_t status;
+  
+  printf("running cipher self-test for %s...", ct->description);
+  status = cipher_type_self_test(ct);
+  if (status) {
+    printf("failed with error code %d\n", status);
+    exit(status);
+  }
+  printf("passed\n");
+  
+  return err_status_ok;
+}
+
+/*
+ * cipher_driver_test_buffering(ct) tests the cipher's output
+ * buffering for correctness by checking the consistency of succesive
+ * calls
+ */
+
+err_status_t
+cipher_driver_test_buffering(cipher_t *c) {
+  int i, j, num_trials = 1000;
+  unsigned len, buflen = 1024;
+  uint8_t buffer0[buflen], buffer1[buflen], *current, *end;
+  uint8_t idx[16] = { 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x34
+  };
+  err_status_t status;
+  
+  printf("testing output buffering for cipher %s...",
+	 c->type->description);
+
+  for (i=0; i < num_trials; i++) {
+
+   /* set buffers to zero */
+    for (j=0; j < buflen; j++) 
+      buffer0[j] = buffer1[j] = 0;
+    
+    /* initialize cipher  */
+    status = cipher_set_iv(c, idx);
+    if (status)
+      return status;
+
+    /* generate 'reference' value by encrypting all at once */
+    status = cipher_encrypt(c, buffer0, &buflen);
+    if (status)
+      return status;
+
+    /* re-initialize cipher */
+    status = cipher_set_iv(c, idx);
+    if (status)
+      return status;
+    
+    /* now loop over short lengths until buffer1 is encrypted */
+    current = buffer1;
+    end = buffer1 + buflen;
+    while (current < end) {
+
+      /* choose a short length */
+      len = rand() & 0x01f;
+
+      /* make sure that len doesn't cause us to overreach the buffer */
+      if (current + len > end)
+	len = end - current;
+
+      status = cipher_encrypt(c, current, &len);
+      if (status) 
+	return status;
+      
+      /* advance pointer into buffer1 to reflect encryption */
+      current += len;
+      
+      /* if buffer1 is all encrypted, break out of loop */
+      if (current == end)
+	break;
+    }
+
+    /* compare buffers */
+    for (j=0; j < buflen; j++)
+      if (buffer0[j] != buffer1[j]) {
+#if PRINT_DEBUG
+	printf("test case %d failed at byte %d\n", i, j);
+	printf("computed: %s\n", octet_string_hex_string(buffer1, buflen));
+	printf("expected: %s\n", octet_string_hex_string(buffer0, buflen));
+#endif 
+	return err_status_algo_fail;
+      }
+  }
+  
+  printf("passed\n");
+
+  return err_status_ok;
+}
+
+
+/*
+ * The function cipher_test_throughput_array() tests the effect of CPU
+ * cache thrash on cipher throughput.  
+ *
+ * cipher_array_alloc_init(ctype, array, num_ciphers) creates an array
+ * of cipher_t of type ctype
+ */
+
+err_status_t
+cipher_array_alloc_init(cipher_t ***ca, int num_ciphers,
+			cipher_type_t *ctype, int klen) {
+  int i, j;
+  err_status_t status;
+  uint8_t *key;
+  cipher_t **cipher_array;
+  /* pad klen allocation, to handle aes_icm reading 16 bytes for the
+     14-byte salt */
+  int klen_pad = ((klen + 15) >> 4) << 4;
+
+  /* allocate array of pointers to ciphers */
+  cipher_array = (cipher_t **) malloc(sizeof(cipher_t *) * num_ciphers);
+  if (cipher_array == NULL)
+    return err_status_alloc_fail;
+
+  /* set ca to location of cipher_array */
+  *ca = cipher_array;
+
+  /* allocate key */
+  key = crypto_alloc(klen_pad);
+  if (key == NULL) {
+    free(cipher_array);
+    return err_status_alloc_fail;
+  }
+  
+  /* allocate and initialize an array of ciphers */
+  for (i=0; i < num_ciphers; i++) {
+
+    /* allocate cipher */
+    status = cipher_type_alloc(ctype, cipher_array, klen);
+    if (status)
+      return status;
+    
+    /* generate random key and initialize cipher */
+    for (j=0; j < klen; j++)
+      key[j] = (uint8_t) rand();
+    for (; j < klen_pad; j++)
+      key[j] = 0;
+    status = cipher_init(*cipher_array, key, direction_encrypt);
+    if (status)
+      return status;
+
+/*     printf("%dth cipher is at %p\n", i, *cipher_array); */
+/*     printf("%dth cipher description: %s\n", i,  */
+/* 	   (*cipher_array)->type->description); */
+    
+    /* advance cipher array pointer */
+    cipher_array++;
+  }
+
+  crypto_free(key);
+
+  return err_status_ok;
+}
+
+err_status_t
+cipher_array_delete(cipher_t *cipher_array[], int num_cipher) {
+  int i;
+  
+  for (i=0; i < num_cipher; i++) {
+    cipher_dealloc(cipher_array[i]);
+  }
+
+  free(cipher_array);
+  
+  return err_status_ok;
+}
+
+
+/*
+ * cipher_array_bits_per_second(c, l, t) computes (an estimate of) the
+ * number of bits that a cipher implementation can encrypt in a second
+ * when distinct keys are used to encrypt distinct messages
+ * 
+ * c is a cipher (which MUST be allocated an initialized already), l
+ * is the length in octets of the test data to be encrypted, and t is
+ * the number of trials
+ *
+ * if an error is encountered, the value 0 is returned
+ */
+
+uint64_t
+cipher_array_bits_per_second(cipher_t *cipher_array[], int num_cipher, 
+			      unsigned octets_in_buffer, int num_trials) {
+  int i;
+  v128_t nonce;
+  clock_t timer;
+  unsigned char *enc_buf;
+  int cipher_index = rand() % num_cipher;
+
+  /* Over-alloc, for NIST CBC padding */
+  enc_buf = crypto_alloc(octets_in_buffer+17);
+  if (enc_buf == NULL)
+    return 0;  /* indicate bad parameters by returning null */
+  memset(enc_buf, 0, octets_in_buffer);
+  
+  /* time repeated trials */
+  v128_set_to_zero(&nonce);
+  timer = clock();
+  for(i=0; i < num_trials; i++, nonce.v32[3] = i) {
+    /* length parameter to cipher_encrypt is in/out -- out is total, padded
+     * length -- so reset it each time. */
+    unsigned octets_to_encrypt = octets_in_buffer;
+
+    /* encrypt buffer with cipher */
+    cipher_set_iv(cipher_array[cipher_index], &nonce);
+    cipher_encrypt(cipher_array[cipher_index], enc_buf, &octets_to_encrypt);
+
+    /* choose a cipher at random from the array*/
+    cipher_index = (*((uint32_t *)enc_buf)) % num_cipher;
+  }
+  timer = clock() - timer;
+
+  free(enc_buf);
+
+  if (timer == 0) {
+    /* Too fast! */
+    return 0;
+  }
+
+  return (uint64_t)CLOCKS_PER_SEC * num_trials * 8 * octets_in_buffer / timer;
+}
+
+void
+cipher_array_test_throughput(cipher_t *ca[], int num_cipher) {
+  int i;
+  int min_enc_len = 16;     
+  int max_enc_len = 2048;   /* should be a power of two */
+  int num_trials = 1000000;
+
+  printf("timing %s throughput with key length %d, array size %d:\n", 
+	 (ca[0])->type->description, (ca[0])->key_len, num_cipher);
+  fflush(stdout);
+  for (i=min_enc_len; i <= max_enc_len; i = i * 4)
+    printf("msg len: %d\tgigabits per second: %f\n", i,
+	   cipher_array_bits_per_second(ca, num_cipher, i, num_trials) / 1e9);
+
+}
+
+err_status_t
+cipher_driver_test_array_throughput(cipher_type_t *ct, 
+				    int klen, int num_cipher) {
+  cipher_t **ca = NULL;
+  err_status_t status;
+
+  status = cipher_array_alloc_init(&ca, num_cipher, ct, klen);
+  if (status) {
+    printf("error: cipher_array_alloc_init() failed with error code %d\n",
+	   status);
+    return status;
+  }
+  
+  cipher_array_test_throughput(ca, num_cipher);
+  
+  cipher_array_delete(ca, num_cipher);    
+ 
+  return err_status_ok;
+}
diff --git a/netwerk/srtp/src/crypto/test/datatypes_driver.c b/netwerk/srtp/src/crypto/test/datatypes_driver.c
new file mode 100644
index 000000000..f1866524c
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/datatypes_driver.c
@@ -0,0 +1,237 @@
+/*
+ * datatypes_driver.c
+ *
+ * a test driver for crypto/math datatypes
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include <stdio.h>            /* for printf() */
+#include <string.h>           /* for strlen() */
+#include "datatypes.h"
+
+void
+byte_order(void);
+
+void
+test_hex_string_funcs(void);
+
+void
+print_string(char *s);
+
+void
+test_bswap(void);
+
+int
+main (void) {
+  
+  /*
+   * this program includes various and sundry tests for fundamental
+   * datatypes.  it's a grab-bag of throwaway code, retained only in
+   * case of future problems
+   */
+
+  int i, j;
+  v128_t x;
+  char *r = 
+    "The Moving Finger writes; and, having writ,\n"
+    "Moves on: nor all thy Piety nor Wit\n"
+    "Shall lure it back to cancel half a Line,\n"
+    "Nor all thy Tears wash out a Word of it.";
+  char *s = "incomplet"; 
+ 
+  print_string(r);
+  print_string(s);
+ 
+  byte_order();
+  test_hex_string_funcs();
+
+  for (j=0; j < 128; j++) {
+    v128_set_to_zero(&x);
+    /*      x.v32[0] = (1 << j); */
+    v128_set_bit(&x, j);
+    printf("%s\n", v128_bit_string(&x)); 
+    v128_clear_bit(&x, j);
+    printf("%s\n", v128_bit_string(&x)); 
+    
+  }
+
+  printf("----------------------------------------------\n");
+  v128_set_to_zero(&x);
+  for (i=0; i < 128; i++) {
+    v128_set_bit(&x, i);
+  }
+  printf("%s\n", v128_bit_string(&x)); 
+
+  printf("----------------------------------------------\n");
+  v128_set_to_zero(&x);
+  v128_set_bit(&x, 0);
+  for (i=0; i < 128; i++) {
+      printf("%s\n", v128_bit_string(&x)); 
+    v128_right_shift(&x, 1);
+  }
+  printf("----------------------------------------------\n");
+  v128_set_to_zero(&x);
+  v128_set_bit(&x, 127);
+  for (i=0; i < 128; i++) {
+      printf("%s\n", v128_bit_string(&x)); 
+    v128_left_shift(&x, 1);
+  }
+  printf("----------------------------------------------\n");
+  for (i=0; i < 128; i++) {
+    v128_set_to_zero(&x);
+    v128_set_bit(&x, 127);
+    v128_left_shift(&x, i);
+      printf("%s\n", v128_bit_string(&x)); 
+  }
+  printf("----------------------------------------------\n");
+  v128_set_to_zero(&x);
+  for (i=0; i < 128; i+=2) {
+    v128_set_bit(&x, i);
+  }
+  printf("bit_string: { %s }\n", v128_bit_string(&x)); 
+  printf("get_bit:    { ");   
+  for (i=0; i < 128; i++) {
+    if (v128_get_bit(&x, i) == 1)
+      printf("1");
+    else
+      printf("0");
+  }
+  printf(" } \n");
+
+  test_bswap();
+
+  return 0;
+}
+
+
+/* byte_order() prints out byte ordering of datatypes */
+
+void
+byte_order(void) {
+  int i;
+  v128_t e;
+#if 0
+  v16_t b;
+  v32_t c;
+  v64_t d;
+
+  for (i=0; i < sizeof(b); i++)
+    b.octet[i] = i;
+  for (i=0; i < sizeof(c); i++)
+    c.octet[i] = i;
+  for (i=0; i < sizeof(d); i++)
+    d.octet[i] = i;
+  
+  printf("v128_t:\t%s\n", v128_hex_string(&e));
+  printf("v64_t:\t%s\n", v64_hex_string(&d));
+  printf("v32_t:\t%s\n", v32_hex_string(c));
+  printf("v16_t:\t%s\n", v16_hex_string(b));
+
+  c.value = 0x01020304;
+  printf("v32_t:\t%s\n", v32_hex_string(c));
+  b.value = 0x0102;
+  printf("v16_t:\t%s\n", v16_hex_string(b));
+
+  printf("uint16_t ordering:\n");
+
+  c.value = 0x00010002;
+  printf("v32_t:\t%x%x\n", c.v16[0], c.v16[1]);
+#endif 
+
+  printf("byte ordering of crypto/math datatypes:\n");
+  for (i=0; i < sizeof(e); i++)
+    e.v8[i] = i;
+  printf("v128_t: %s\n", v128_hex_string(&e));
+  
+}
+
+void
+test_hex_string_funcs(void) {
+  char hex1[] = "abadcafe";
+  char hex2[] = "0123456789abcdefqqqqq";
+  char raw[10];
+  int len;
+
+  len = hex_string_to_octet_string(raw, hex1, strlen(hex1));
+  printf("computed length: %d\tstring: %s\n", len,
+	 octet_string_hex_string(raw, len/2));
+  printf("expected length: %u\tstring: %s\n", (unsigned)strlen(hex1), hex1);
+
+  len = hex_string_to_octet_string(raw, hex2, strlen(hex2));
+  printf("computed length: %d\tstring: %s\n", len,
+	 octet_string_hex_string(raw, len/2));
+  printf("expected length: %d\tstring: %s\n", 16, "0123456789abcdef");
+
+}
+
+void
+print_string(char *s) {
+  int i;  
+  printf("%s\n", s);
+  printf("strlen(s) = %u\n", (unsigned)strlen(s));
+  printf("{ ");
+  for (i=0; i < strlen(s); i++) {
+    printf("0x%x, ", s[i]);
+    if (((i+1) % 8) == 0)
+      printf("\n   ");
+  }
+  printf("}\n");
+}
+
+void
+test_bswap(void) {
+  uint32_t x = 0x11223344;
+  uint64_t y = 0x1122334455667788LL;
+
+  printf("before: %0x\nafter:  %0x\n", x, be32_to_cpu(x));
+  printf("before: %0llx\nafter:  %0llx\n", (unsigned long long)y,
+	 (unsigned long long)be64_to_cpu(y));
+
+  y = 1234;
+
+  printf("1234: %0llx\n", (unsigned long long)y);
+  printf("as octet string: %s\n", 
+	 octet_string_hex_string((uint8_t *) &y, 8));
+  y = be64_to_cpu(y);
+  printf("bswapped octet string: %s\n", 
+	 octet_string_hex_string((uint8_t *) &y, 8));
+}
diff --git a/netwerk/srtp/src/crypto/test/env.c b/netwerk/srtp/src/crypto/test/env.c
new file mode 100644
index 000000000..37a6e2731
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/env.c
@@ -0,0 +1,99 @@
+/*
+ * env.c
+ *
+ * prints out a brief report on the build environment
+ *
+ * David McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright (c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>     /* for srtcmp() */
+#include "config.h"
+
+int 
+main(void) {
+  int err_count = 0;
+  char *str;
+
+#ifdef WORDS_BIGENDIAN
+  printf("CPU set to big-endian\t\t\t(WORDS_BIGENDIAN == 1)\n");
+#else
+  printf("CPU set to little-endian\t\t(WORDS_BIGENDIAN == 0)\n");
+#endif
+
+#ifdef CPU_RISC
+  printf("CPU set to RISC\t\t\t\t(CPU_RISC == 1)\n");
+#elif defined(CPU_CISC)
+  printf("CPU set to CISC\t\t\t\t(CPU_CISC == 1)\n");
+#else
+  printf("CPU set to an unknown type, probably due to a configuration error\n");
+  err_count++;
+#endif
+
+#ifdef CPU_ALTIVEC
+  printf("CPU set to ALTIVEC\t\t\t\t(CPU_ALTIVEC == 0)\n");
+#endif
+
+#ifndef NO_64BIT_MATH
+  printf("using native 64-bit type\t\t(NO_64_BIT_MATH == 0)\n");
+#else
+  printf("using built-in 64-bit math\t\t(NO_64_BIT_MATH == 1)\n");
+#endif
+
+#ifdef ERR_REPORTING_STDOUT
+  printf("using stdout for error reporting\t(ERR_REPORTING_STDOUT == 1)\n");
+#endif
+
+#ifdef DEV_URANDOM
+  str = DEV_URANDOM;
+#else
+  str = "";
+#endif
+  printf("using %s as a random source\t(DEV_URANDOM == %s)\n",
+	 str, str);
+  if (strcmp("", str) == 0) {
+    err_count++;
+  }
+  
+  if (err_count)
+    printf("warning: configuration is probably in error "
+	   "(found %d problems)\n", err_count);
+
+  return err_count;
+}
diff --git a/netwerk/srtp/src/crypto/test/kernel_driver.c b/netwerk/srtp/src/crypto/test/kernel_driver.c
new file mode 100644
index 000000000..8ef8a5f4b
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/kernel_driver.c
@@ -0,0 +1,126 @@
+/*
+ * kernel_driver.c
+ *
+ * a test driver for the crypto_kernel
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include <stdio.h>           /* for printf() */
+#include <unistd.h>          /* for getopt() */
+#include "crypto_kernel.h"
+
+void
+usage(char *prog_name) {
+  printf("usage: %s [ -v ][ -d debug_module ]*\n", prog_name);
+  exit(255);
+}
+
+int
+main (int argc, char *argv[]) {
+  extern char *optarg;
+  int q;
+  int do_validation      = 0;
+  err_status_t status;
+
+  if (argc == 1)
+    usage(argv[0]);
+
+  /* initialize kernel - we need to do this before anything else */ 
+  status = crypto_kernel_init();
+  if (status) {
+    printf("error: crypto_kernel init failed\n");
+    exit(1);
+  }
+  printf("crypto_kernel successfully initalized\n");
+
+  /* process input arguments */
+  while (1) {
+    q = getopt(argc, argv, "vd:");
+    if (q == -1) 
+      break;
+    switch (q) {
+    case 'v':
+      do_validation = 1;
+      break;
+    case 'd':
+      status = crypto_kernel_set_debug_module(optarg, 1);
+      if (status) {
+	printf("error: set debug module (%s) failed\n", optarg);
+	exit(1);
+      }
+      break;
+    default:
+      usage(argv[0]);
+    }    
+  }
+
+  if (do_validation) {
+    printf("checking crypto_kernel status...\n");
+    status = crypto_kernel_status();
+    if (status) {
+      printf("failed\n");
+      exit(1);
+    }
+    printf("crypto_kernel passed self-tests\n");
+  }
+
+  status = crypto_kernel_shutdown();
+  if (status) {
+    printf("error: crypto_kernel shutdown failed\n");
+    exit(1);
+  }
+  printf("crypto_kernel successfully shut down\n");
+  
+  return 0;
+}
+
+/*
+ * crypto_kernel_cipher_test() is a test of the cipher interface
+ * of the crypto_kernel
+ */
+
+err_status_t
+crypto_kernel_cipher_test(void) {
+
+  /* not implemented yet! */
+
+  return err_status_ok;
+}
diff --git a/netwerk/srtp/src/crypto/test/rand_gen.c b/netwerk/srtp/src/crypto/test/rand_gen.c
new file mode 100644
index 000000000..ccea097f2
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/rand_gen.c
@@ -0,0 +1,140 @@
+/*
+ * rand_gen.c
+ *
+ * a random source (random number generator)
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *	
+ * Copyright(c) 2001-2006 Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include <stdio.h>           /* for printf() */
+#include <unistd.h>          /* for getopt() */
+#include "crypto_kernel.h"
+
+/*
+ * MAX_PRINT_STRING_LEN is defined in datatypes.h, and is the length
+ * of the largest hexadecimal string that can be generated by the
+ * function octet_string_hex_string().
+ */
+
+#define BUF_LEN (MAX_PRINT_STRING_LEN/2)
+
+void
+usage(char *prog_name) {
+  printf("usage: %s -n <num_bytes> [-l][ -d debug_module ]*\n"
+	 "   -n <num>   output <num> random bytes, where <num>"
+	 " is between zero and %d\n"
+	 "   -l         list the avaliable debug modules\n"
+	 "   -d <mod>   turn on debugging module <mod>\n", 
+	 prog_name, BUF_LEN);
+  exit(255);
+}
+
+int
+main (int argc, char *argv[]) {
+  extern char *optarg;
+  int q;
+  int num_octets = 0;
+  unsigned do_list_mods = 0;
+  err_status_t status;
+
+  if (argc == 1)
+    usage(argv[0]);
+
+  /* initialize kernel - we need to do this before anything else */ 
+  status = crypto_kernel_init();
+  if (status) {
+    printf("error: crypto_kernel init failed\n");
+    exit(1);
+  }
+
+  /* process input arguments */
+  while (1) {
+    q = getopt(argc, argv, "ld:n:");
+    if (q == -1) 
+      break;
+    switch (q) {
+    case 'd':
+      status = crypto_kernel_set_debug_module(optarg, 1);
+      if (status) {
+	printf("error: set debug module (%s) failed\n", optarg);
+	exit(1);
+      }
+      break;
+    case 'l':
+      do_list_mods = 1;
+      break;
+    case 'n':
+      num_octets = atoi(optarg);
+      if (num_octets < 0 || num_octets > BUF_LEN)
+	usage(argv[0]);
+      break;
+    default:
+      usage(argv[0]);
+    }    
+  }
+
+  if (do_list_mods) {
+    status = crypto_kernel_list_debug_modules();
+    if (status) {
+      printf("error: list of debug modules failed\n");
+      exit(1);
+    }
+  }
+
+  if (num_octets > 0) {
+    uint8_t buffer[BUF_LEN];
+    
+    status = crypto_get_random(buffer, num_octets);
+    if (status) {
+      printf("error: failure in random source\n");
+    } else {
+      printf("%s\n", octet_string_hex_string(buffer, num_octets));
+    }
+  }
+
+  status = crypto_kernel_shutdown();
+  if (status) {
+    printf("error: crypto_kernel shutdown failed\n");
+    exit(1);
+  }
+  
+  return 0;
+}
+
diff --git a/netwerk/srtp/src/crypto/test/sha1_driver.c b/netwerk/srtp/src/crypto/test/sha1_driver.c
new file mode 100644
index 000000000..6036022e9
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/sha1_driver.c
@@ -0,0 +1,550 @@
+/*
+ * sha1_driver.c
+ *
+ * a test driver for SHA-1
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>
+#include "sha1.h"
+
+#define SHA_PASS 0
+#define SHA_FAIL 1
+
+#define MAX_HASH_DATA_LEN 1024
+#define MAX_HASH_OUT_LEN   20
+
+typedef struct hash_test_case_t {
+  unsigned data_len;                 /* number of octets in data        */
+  unsigned hash_len;                 /* number of octets output by hash */
+  uint8_t data[MAX_HASH_DATA_LEN];   /* message data                    */            
+  uint8_t hash[MAX_HASH_OUT_LEN];    /* expected hash output            */  
+  struct hash_test_case_t *next_test_case;
+} hash_test_case_t;
+
+hash_test_case_t *sha1_test_case_list;
+
+err_status_t
+hash_test_case_add(hash_test_case_t **list_ptr, 
+		   char *hex_data, 
+		   unsigned data_len, 
+		   char *hex_hash, 
+		   unsigned hash_len) {
+  hash_test_case_t *list_head = *list_ptr;
+  hash_test_case_t *test_case;
+  unsigned tmp_len;
+
+  test_case = malloc(sizeof(hash_test_case_t));
+  if (test_case == NULL)
+    return err_status_alloc_fail;
+  
+  tmp_len = hex_string_to_octet_string((char *)test_case->data, hex_data, data_len*2);
+  if (tmp_len != data_len*2)
+    return err_status_parse_err;
+
+  tmp_len = hex_string_to_octet_string((char *)test_case->hash, hex_hash, hash_len*2);
+  if (tmp_len != hash_len*2)
+    return err_status_parse_err;
+
+  test_case->data_len = data_len;
+  test_case->hash_len = hash_len;
+
+  /* add the new test case to the head of the list */
+  test_case->next_test_case = list_head;
+  *list_ptr = test_case;
+
+  return err_status_ok;
+}
+
+err_status_t
+sha1_test_case_validate(const hash_test_case_t *test_case) {
+  sha1_ctx_t ctx;
+  uint32_t hash_value[5];
+
+  if (test_case == NULL)
+    return err_status_bad_param;
+
+  if (test_case->hash_len != 20)
+    return err_status_bad_param;
+  if (test_case->data_len > MAX_HASH_DATA_LEN)
+    return err_status_bad_param;
+
+  sha1_init(&ctx);
+  sha1_update(&ctx, test_case->data, test_case->data_len);
+  sha1_final(&ctx, hash_value);
+  if (0 == memcmp(test_case->hash, hash_value, 20)) {
+#if VERBOSE
+    printf("PASSED: reference value: %s\n", 
+	   octet_string_hex_string((const uint8_t *)test_case->hash, 20));
+    printf("PASSED: computed value:  %s\n", 
+	   octet_string_hex_string((const uint8_t *)hash_value, 20));   
+#endif 
+    return err_status_ok;
+  }
+
+  printf("reference value: %s\n", 
+	 octet_string_hex_string((const uint8_t *)test_case->hash, 20));
+  printf("computed value:  %s\n", 
+	 octet_string_hex_string((const uint8_t *)hash_value, 20));
+
+  return err_status_algo_fail;
+  
+}
+
+struct hex_sha1_test_case_t {
+  unsigned bit_len;
+  char hex_data[MAX_HASH_DATA_LEN*2];
+  char hex_hash[40];
+};
+
+err_status_t
+sha1_add_test_cases(void) {
+  int i;
+  err_status_t err;
+
+  /*
+   * these test cases are taken from the "SHA-1 Sample Vectors"
+   * provided by NIST at http://csrc.nist.gov/cryptval/shs.html
+   */
+
+  struct hex_sha1_test_case_t tc[] = {
+    { 
+      0,
+      "",
+      "da39a3ee5e6b4b0d3255bfef95601890afd80709"
+    },
+    {
+      8,
+      "a8",
+      "99f2aa95e36f95c2acb0eaf23998f030638f3f15"
+    }, 
+    {
+      16, 
+      "3000",
+      "f944dcd635f9801f7ac90a407fbc479964dec024"
+    }, 
+    {
+      24, 
+      "42749e", 
+      "a444319e9b6cc1e8464c511ec0969c37d6bb2619"
+    }, 
+    {
+      32, 
+      "9fc3fe08", 
+      "16a0ff84fcc156fd5d3ca3a744f20a232d172253"
+    }, 
+    {
+      40, 
+      "b5c1c6f1af",
+      "fec9deebfcdedaf66dda525e1be43597a73a1f93"
+    },
+    {
+      48, 
+      "e47571e5022e",
+      "8ce051181f0ed5e9d0c498f6bc4caf448d20deb5"
+    }, 
+    {
+      56, 
+      "3e1b28839fb758",
+      "67da53837d89e03bf652ef09c369a3415937cfd3"
+    },
+    {
+      64, 
+      "a81350cbb224cb90",
+      "305e4ff9888ad855a78573cddf4c5640cce7e946"
+    }, 
+    {
+      72, "c243d167923dec3ce1",
+      "5902b77b3265f023f9bbc396ba1a93fa3509bde7"
+    },
+    {
+      80, 
+      "50ac18c59d6a37a29bf4",
+      "fcade5f5d156bf6f9af97bdfa9c19bccfb4ff6ab"
+    }, 
+    {
+      88, 
+      "98e2b611ad3b1cccf634f6",
+      "1d20fbe00533c10e3cbd6b27088a5de0c632c4b5"
+    },
+    {
+      96, 
+      "73fe9afb68e1e8712e5d4eec",
+      "7e1b7e0f7a8f3455a9c03e9580fd63ae205a2d93"
+    }, 
+    {
+      104, 
+      "9e701ed7d412a9226a2a130e66",
+      "706f0677146307b20bb0e8d6311e329966884d13"
+    }, 
+    {
+      112, 
+      "6d3ee90413b0a7cbf69e5e6144ca",
+      "a7241a703aaf0d53fe142f86bf2e849251fa8dff"
+    }, 
+    {
+      120, 
+      "fae24d56514efcb530fd4802f5e71f",
+      "400f53546916d33ad01a5e6df66822dfbdc4e9e6"
+    }, 
+    {
+      128, 
+      "c5a22dd6eda3fe2bdc4ddb3ce6b35fd1",
+      "fac8ab93c1ae6c16f0311872b984f729dc928ccd"
+    }, 
+    {
+      136, 
+      "d98cded2adabf08fda356445c781802d95",
+      "fba6d750c18da58f6e2aab10112b9a5ef3301b3b"
+    }, 
+    {
+      144, 
+      "bcc6d7087a84f00103ccb32e5f5487a751a2",
+      "29d27c2d44c205c8107f0351b05753ac708226b6"
+    }, 
+    {
+      152, 
+      "36ecacb1055434190dbbc556c48bafcb0feb0d",
+      "b971bfc1ebd6f359e8d74cb7ecfe7f898d0ba845"
+    }, 
+    {
+      160, 
+      "5ff9edb69e8f6bbd498eb4537580b7fba7ad31d0",
+      "96d08c430094b9fcc164ad2fb6f72d0a24268f68"
+    },
+    {
+      168, "c95b441d8270822a46a798fae5defcf7b26abace36",
+      "a287ea752a593d5209e287881a09c49fa3f0beb1"
+    }, 
+    {
+      176, 
+      "83104c1d8a55b28f906f1b72cb53f68cbb097b44f860",
+      "a06c713779cbd88519ed4a585ac0cb8a5e9d612b"
+    }, 
+    {
+      184,
+      "755175528d55c39c56493d697b790f099a5ce741f7754b",
+      "bff7d52c13a3688132a1d407b1ab40f5b5ace298"
+    }, 
+    {
+      192,
+      "088fc38128bbdb9fd7d65228b3184b3faac6c8715f07272f",
+      "c7566b91d7b6f56bdfcaa9781a7b6841aacb17e9"
+    }, 
+    {
+      200,
+      "a4a586eb9245a6c87e3adf1009ac8a49f46c07e14185016895",
+      "ffa30c0b5c550ea4b1e34f8a60ec9295a1e06ac1"
+    }, 
+    {
+      208, 
+      "8e7c555270c006092c2a3189e2a526b873e2e269f0fb28245256",
+      "29e66ed23e914351e872aa761df6e4f1a07f4b81"
+    }, 
+    {
+      216, 
+      "a5f3bfa6bb0ba3b59f6b9cbdef8a558ec565e8aa3121f405e7f2f0",
+      "b28cf5e5b806a01491d41f69bd9248765c5dc292"
+    }, 
+    {
+      224,
+      "589054f0d2bd3c2c85b466bfd8ce18e6ec3e0b87d944cd093ba36469",
+      "60224fb72c46069652cd78bcd08029ef64da62f3"
+    }, 
+    {
+      232,
+      "a0abb12083b5bbc78128601bf1cbdbc0fdf4b862b24d899953d8da0ff3",
+      "b72c4a86f72608f24c05f3b9088ef92fba431df7"
+    }, 
+    {
+      240,
+      "82143f4cea6fadbf998e128a8811dc75301cf1db4f079501ea568da68eeb",
+      "73779ad5d6b71b9b8328ef7220ff12eb167076ac"
+    },
+    {
+      248,
+      "9f1231dd6df1ff7bc0b0d4f989d048672683ce35d956d2f57913046267e6f3",
+      "a09671d4452d7cf50015c914a1e31973d20cc1a0"
+    }, 
+    {
+      256, 
+      "041c512b5eed791f80d3282f3a28df263bb1df95e1239a7650e5670fc2187919",
+      "e88cdcd233d99184a6fd260b8fca1b7f7687aee0"
+    }, 
+    {
+      264,
+      "17e81f6ae8c2e5579d69dafa6e070e7111461552d314b691e7a3e7a4feb3fae418",
+      "010def22850deb1168d525e8c84c28116cb8a269"
+    },
+    {
+      272, 
+      "d15976b23a1d712ad28fad04d805f572026b54dd64961fda94d5355a0cc98620cf77",
+      "aeaa40ba1717ed5439b1e6ea901b294ba500f9ad"
+    }, 
+    {
+      280, 
+      "09fce4d434f6bd32a44e04b848ff50ec9f642a8a85b37a264dc73f130f22838443328f",
+      "c6433791238795e34f080a5f1f1723f065463ca0"
+    }, 
+    {
+      288, "f17af27d776ec82a257d8d46d2b46b639462c56984cc1be9c1222eadb8b26594a25c709d",
+      "e21e22b89c1bb944a32932e6b2a2f20d491982c3"
+    }, 
+    {
+      296, 
+      "b13ce635d6f8758143ffb114f2f601cb20b6276951416a2f94fbf4ad081779d79f4f195b22",
+      "575323a9661f5d28387964d2ba6ab92c17d05a8a"
+    },
+    {
+      304,
+      "5498793f60916ff1c918dde572cdea76da8629ba4ead6d065de3dfb48de94d234cc1c5002910",
+      "feb44494af72f245bfe68e86c4d7986d57c11db7"
+    },
+    {
+      312,
+      "498a1e0b39fa49582ae688cd715c86fbaf8a81b8b11b4d1594c49c902d197c8ba8a621fd6e3be5",
+      "cff2290b3648ba2831b98dde436a72f9ebf51eee"
+    }, 
+    {
+      320,
+      "3a36ae71521f9af628b3e34dcb0d4513f84c78ee49f10416a98857150b8b15cb5c83afb4b570376e",
+      "9b4efe9d27b965905b0c3dab67b8d7c9ebacd56c"
+    }, 
+    {
+      328,
+      "dcc76b40ae0ea3ba253e92ac50fcde791662c5b6c948538cffc2d95e9de99cac34dfca38910db2678f",
+      "afedb0ff156205bcd831cbdbda43db8b0588c113"
+    }, 
+    {
+      336,
+      "5b5ec6ec4fd3ad9c4906f65c747fd4233c11a1736b6b228b92e90cddabb0c7c2fcf9716d3fad261dff33",
+      "8deb1e858f88293a5e5e4d521a34b2a4efa70fc4"
+    }, 
+    {
+      344,
+      "df48a37b29b1d6de4e94717d60cdb4293fcf170bba388bddf7a9035a15d433f20fd697c3e4c8b8c5f590ab",
+      "95cbdac0f74afa69cebd0e5c7defbc6faf0cbeaf"
+    }, 
+    {
+      352, 
+      "1f179b3b82250a65e1b0aee949e218e2f45c7a8dbfd6ba08de05c55acfc226b48c68d7f7057e5675cd96fcfc",
+      "f0307bcb92842e5ae0cd4f4f14f3df7f877fbef2"
+    }, 
+    {
+      360,
+      "ee3d72da3a44d971578972a8e6780ce64941267e0f7d0179b214fa97855e1790e888e09fbe3a70412176cb3b54",
+      "7b13bb0dbf14964bd63b133ac85e22100542ef55"
+    }, 
+    {
+      368,
+      "d4d4c7843d312b30f610b3682254c8be96d5f6684503f8fbfbcd15774fc1b084d3741afb8d24aaa8ab9c104f7258",
+      "c314d2b6cf439be678d2a74e890d96cfac1c02ed"
+    }, 
+    {
+      376, 
+      "32c094944f5936a190a0877fb9178a7bf60ceae36fd530671c5b38c5dbd5e6a6c0d615c2ac8ad04b213cc589541cf6",
+      "4d0be361e410b47a9d67d8ce0bb6a8e01c53c078"
+    }, 
+    {
+      384,
+      "e5d3180c14bf27a5409fa12b104a8fd7e9639609bfde6ee82bbf9648be2546d29688a65e2e3f3da47a45ac14343c9c02",
+      "e5353431ffae097f675cbf498869f6fbb6e1c9f2"
+    },
+    {
+      392, 
+      "e7b6e4b69f724327e41e1188a37f4fe38b1dba19cbf5a7311d6e32f1038e97ab506ee05aebebc1eed09fc0e357109818b9",
+      "b8720a7068a085c018ab18961de2765aa6cd9ac4"
+    }, 
+    {
+      400,
+      "bc880cb83b8ac68ef2fedc2da95e7677ce2aa18b0e2d8b322701f67af7d5e7a0d96e9e33326ccb7747cfff0852b961bfd475",
+      "b0732181568543ba85f2b6da602b4b065d9931aa"
+    }, 
+    {
+      408,
+      "235ea9c2ba7af25400f2e98a47a291b0bccdaad63faa2475721fda5510cc7dad814bce8dabb611790a6abe56030b798b75c944",
+      "9c22674cf3222c3ba921672694aafee4ce67b96b"
+    }, 
+    {
+      416, 
+      "07e3e29fed63104b8410f323b975fd9fba53f636af8c4e68a53fb202ca35dd9ee07cb169ec5186292e44c27e5696a967f5e67709",
+      "d128335f4cecca9066cdae08958ce656ff0b4cfc"
+    }, 
+    {
+      424, 
+      "65d2a1dd60a517eb27bfbf530cf6a5458f9d5f4730058bd9814379547f34241822bf67e6335a6d8b5ed06abf8841884c636a25733f",
+      "0b67c57ac578de88a2ae055caeaec8bb9b0085a0"
+    },
+    {
+      432,
+      "dcc86b3bd461615bab739d8daafac231c0f462e819ad29f9f14058f3ab5b75941d4241ea2f17ebb8a458831b37a9b16dead4a76a9b0e",
+      "c766f912a89d4ccda88e0cce6a713ef5f178b596"
+    }, 
+    {
+      440,
+      "4627d54f0568dc126b62a8c35fb46a9ac5024400f2995e51635636e1afc4373dbb848eb32df23914230560b82477e9c3572647a7f2bb92",
+      "9aa3925a9dcb177b15ccff9b78e70cf344858779"
+    }, 
+    {
+      448,
+      "ba531affd4381168ef24d8b275a84d9254c7f5cc55fded53aa8024b2c5c5c8aa7146fe1d1b83d62b70467e9a2e2cb67b3361830adbab28d7",
+      "4811fa30042fc076acf37c8e2274d025307e5943"
+    }, 
+    {
+      456,
+      "8764dcbcf89dcf4282eb644e3d568bdccb4b13508bfa7bfe0ffc05efd1390be22109969262992d377691eb4f77f3d59ea8466a74abf57b2ef4",
+      "6743018450c9730761ee2b130df9b91c1e118150"
+    }, 
+    {
+      464,
+      "497d9df9ddb554f3d17870b1a31986c1be277bc44feff713544217a9f579623d18b5ffae306c25a45521d2759a72c0459b58957255ab592f3be4",
+      "71ad4a19d37d92a5e6ef3694ddbeb5aa61ada645"
+    }, 
+    {
+      472, 
+      "72c3c2e065aefa8d9f7a65229e818176eef05da83f835107ba90ec2e95472e73e538f783b416c04654ba8909f26a12db6e5c4e376b7615e4a25819",
+      "a7d9dc68dacefb7d6116186048cb355cc548e11d"
+    }, 
+    {
+      480,
+      "7cc9894454d0055ab5069a33984e2f712bef7e3124960d33559f5f3b81906bb66fe64da13c153ca7f5cabc89667314c32c01036d12ecaf5f9a78de98",
+      "142e429f0522ba5abf5131fa81df82d355b96909"
+    }, 
+    {
+      488,
+      "74e8404d5a453c5f4d306f2cfa338ca65501c840ddab3fb82117933483afd6913c56aaf8a0a0a6b2a342fc3d9dc7599f4a850dfa15d06c61966d74ea59",
+      "ef72db70dcbcab991e9637976c6faf00d22caae9"
+    }, 
+    {
+      496,
+      "46fe5ed326c8fe376fcc92dc9e2714e2240d3253b105adfbb256ff7a19bc40975c604ad7c0071c4fd78a7cb64786e1bece548fa4833c04065fe593f6fb10",
+      "f220a7457f4588d639dc21407c942e9843f8e26b"
+    }, 
+    {
+      504, 
+      "836dfa2524d621cf07c3d2908835de859e549d35030433c796b81272fd8bc0348e8ddbc7705a5ad1fdf2155b6bc48884ac0cd376925f069a37849c089c8645", 
+      "ddd2117b6e309c233ede85f962a0c2fc215e5c69"
+    }, 
+    {
+      512, 
+      "7e3a4c325cb9c52b88387f93d01ae86d42098f5efa7f9457388b5e74b6d28b2438d42d8b64703324d4aa25ab6aad153ae30cd2b2af4d5e5c00a8a2d0220c6116", 
+      "a3054427cdb13f164a610b348702724c808a0dcc"
+    }
+  };
+  
+
+  for (i=0; i < 65; i++) {
+    err = hash_test_case_add(&sha1_test_case_list, 
+			     tc[i].hex_data, 
+			     tc[i].bit_len/8, 
+			     tc[i].hex_hash, 20);
+    if (err) {
+      printf("error adding hash test case (code %d)\n", err);
+      return err;
+    }
+  }
+
+  return err_status_ok;
+}
+
+err_status_t
+sha1_dealloc_test_cases(void) {
+  hash_test_case_t *t, *next;
+
+  for (t = sha1_test_case_list; t != NULL; t = next) {
+    next = t->next_test_case;
+    free(t);
+  }
+
+  sha1_test_case_list = NULL;
+
+  return err_status_ok;
+}
+
+
+
+err_status_t
+sha1_validate(void) {
+  hash_test_case_t *test_case;
+  err_status_t err;
+
+  err = sha1_add_test_cases();
+  if (err) {
+    printf("error adding SHA1 test cases (error code %d)\n", err);
+    return err;
+  }  
+
+  if (sha1_test_case_list == NULL)
+    return err_status_cant_check;
+  
+  test_case = sha1_test_case_list;
+  while (test_case != NULL) {
+    err = sha1_test_case_validate(test_case);
+    if (err) {
+      printf("error validating hash test case (error code %d)\n", err);
+      return err;
+    }
+    test_case = test_case->next_test_case;
+  }
+
+  sha1_dealloc_test_cases();
+
+  return err_status_ok;
+}
+
+
+
+int
+main (void) {
+  err_status_t err;
+
+  printf("sha1 test driver\n");
+
+  err = sha1_validate();
+  if (err) {
+    printf("SHA1 did not pass validation testing\n");
+    return 1;
+  }
+  printf("SHA1 passed validation tests\n");
+
+  return 0;
+
+}
diff --git a/netwerk/srtp/src/crypto/test/stat_driver.c b/netwerk/srtp/src/crypto/test/stat_driver.c
new file mode 100644
index 000000000..4ff2b1426
--- /dev/null
+++ b/netwerk/srtp/src/crypto/test/stat_driver.c
@@ -0,0 +1,174 @@
+/*
+ * stat-driver.c
+ *
+ * test driver for the stat_test functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *	
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ * 
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>         /* for printf() */
+
+#include "err.h"
+#include "stat.h"
+
+#include "cipher.h"
+
+typedef struct {
+  void *state;
+} random_source_t;
+
+err_status_t
+random_source_alloc(void);
+
+void
+err_check(err_status_t s) {
+  if (s) {
+    printf("error (code %d)\n", s);
+    exit(1);
+  }
+}
+
+int
+main (int argc, char *argv[]) {
+  uint8_t buffer[2500];
+  unsigned int buf_len = 2500;
+  int i, j;
+  extern cipher_type_t aes_icm;
+  cipher_t *c;
+  uint8_t key[46] = {
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05
+    };
+  v128_t nonce;
+  int num_trials = 500;
+  int num_fail;
+
+  printf("statistical tests driver\n");
+
+  for (i=0; i < 2500; i++)
+    buffer[i] = 0;
+
+  /* run tests */
+  printf("running stat_tests on all-null buffer, expecting failure\n");
+  printf("monobit %d\n", stat_test_monobit(buffer));
+  printf("poker   %d\n", stat_test_poker(buffer));
+  printf("runs    %d\n", stat_test_runs(buffer));
+
+  for (i=0; i < 2500; i++)
+    buffer[i] = rand();
+  printf("running stat_tests on rand(), expecting success\n");
+  printf("monobit %d\n", stat_test_monobit(buffer));
+  printf("poker   %d\n", stat_test_poker(buffer));
+  printf("runs    %d\n", stat_test_runs(buffer));
+
+  printf("running stat_tests on AES-128-ICM, expecting success\n");
+  /* set buffer to cipher output */
+  for (i=0; i < 2500; i++)
+    buffer[i] = 0;
+  err_check(cipher_type_alloc(&aes_icm, &c, 30));
+  err_check(cipher_init(c, key, direction_encrypt));
+  err_check(cipher_set_iv(c, &nonce));
+  err_check(cipher_encrypt(c, buffer, &buf_len));
+  /* run tests on cipher outout */
+  printf("monobit %d\n", stat_test_monobit(buffer));
+  printf("poker   %d\n", stat_test_poker(buffer));
+  printf("runs    %d\n", stat_test_runs(buffer));
+
+  printf("runs test (please be patient): ");
+  fflush(stdout);
+  num_fail = 0;
+  v128_set_to_zero(&nonce);
+  for(j=0; j < num_trials; j++) {
+    for (i=0; i < 2500; i++)
+      buffer[i] = 0;
+    nonce.v32[3] = i;
+    err_check(cipher_set_iv(c, &nonce));
+    err_check(cipher_encrypt(c, buffer, &buf_len));
+    if (stat_test_runs(buffer)) {
+      num_fail++;
+    }
+  }
+
+  printf("%d failures in %d tests\n", num_fail, num_trials);
+  printf("(nota bene: a small fraction of stat_test failures does not \n"
+	 "indicate that the random source is invalid)\n");
+
+  err_check(cipher_dealloc(c));
+
+  printf("running stat_tests on AES-256-ICM, expecting success\n");
+  /* set buffer to cipher output */
+  for (i=0; i < 2500; i++)
+    buffer[i] = 0;
+  err_check(cipher_type_alloc(&aes_icm, &c, 46));
+  err_check(cipher_init(c, key, direction_encrypt));
+  err_check(cipher_set_iv(c, &nonce));
+  err_check(cipher_encrypt(c, buffer, &buf_len));
+  /* run tests on cipher outout */
+  printf("monobit %d\n", stat_test_monobit(buffer));
+  printf("poker   %d\n", stat_test_poker(buffer));
+  printf("runs    %d\n", stat_test_runs(buffer));
+
+  printf("runs test (please be patient): ");
+  fflush(stdout);
+  num_fail = 0;
+  v128_set_to_zero(&nonce);
+  for(j=0; j < num_trials; j++) {
+    for (i=0; i < 2500; i++)
+      buffer[i] = 0;
+    nonce.v32[3] = i;
+    err_check(cipher_set_iv(c, &nonce));
+    err_check(cipher_encrypt(c, buffer, &buf_len));
+    if (stat_test_runs(buffer)) {
+      num_fail++;
+    }
+  }
+
+  printf("%d failures in %d tests\n", num_fail, num_trials);
+  printf("(nota bene: a small fraction of stat_test failures does not \n"
+	 "indicate that the random source is invalid)\n");
+
+  err_check(cipher_dealloc(c));
+
+  return 0;
+}