diff options
Diffstat (limited to 'netwerk/srtp/src/crypto/include/aes_icm.h')
| -rw-r--r-- | netwerk/srtp/src/crypto/include/aes_icm.h | 92 |
1 files changed, 92 insertions, 0 deletions
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 */ + |