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Diffstat (limited to 'security/nss/lib/freebl/seed.h')
| -rw-r--r-- | security/nss/lib/freebl/seed.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/seed.h b/security/nss/lib/freebl/seed.h new file mode 100644 index 000000000..f527165b7 --- /dev/null +++ b/security/nss/lib/freebl/seed.h @@ -0,0 +1,125 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef HEADER_SEED_H +#define HEADER_SEED_H + +#include <string.h> +#include "blapi.h" + +#if !defined(NO_SYS_TYPES_H) +#include <sys/types.h> +#endif + +typedef PRUint32 seed_word; + +#define G_FUNC(v) \ + SS[0][((v)&0xff)] ^ \ + SS[1][((v) >> 8 & 0xff)] ^ \ + SS[2][((v) >> 16 & 0xff)] ^ \ + SS[3][((v) >> 24 & 0xff)] + +#define char2word(c, i) \ + (i) = ((((seed_word)((c)[0])) << 24) | \ + (((seed_word)((c)[1])) << 16) | \ + (((seed_word)((c)[2])) << 8) | \ + ((seed_word)((c)[3]))) + +#define word2char(l, c) \ + *((c) + 0) = (unsigned char)((l) >> 24); \ + *((c) + 1) = (unsigned char)((l) >> 16); \ + *((c) + 2) = (unsigned char)((l) >> 8); \ + *((c) + 3) = (unsigned char)((l)) + +#define KEYSCHEDULE_UPDATE0(T0, T1, K0, K1, K2, K3, KC) \ + (T0) = (K2); \ + (K2) = (((K2) << 8) ^ ((K3) >> 24)); \ + (K3) = (((K3) << 8) ^ ((T0) >> 24)); \ + (T0) = ((K0) + (K2) - (KC)); \ + (T1) = ((K1) + (KC) - (K3)) + +#define KEYSCHEDULE_UPDATE1(T0, T1, K0, K1, K2, K3, KC) \ + (T0) = (K0); \ + (K0) = (((K0) >> 8) ^ ((K1) << 24)); \ + (K1) = (((K1) >> 8) ^ ((T0) << 24)); \ + (T0) = ((K0) + (K2) - (KC)); \ + (T1) = ((K1) + (KC) - (K3)) + +#define KEYUPDATE_TEMP(T0, T1, K) \ + (K)[0] = G_FUNC((T0)); \ + (K)[1] = G_FUNC((T1)) + +#define XOR_SEEDBLOCK(DST, SRC) \ + (DST)[0] ^= (SRC)[0]; \ + (DST)[1] ^= (SRC)[1]; \ + (DST)[2] ^= (SRC)[2]; \ + (DST)[3] ^= (SRC)[3] + +#define MOV_SEEDBLOCK(DST, SRC) \ + (DST)[0] = (SRC)[0]; \ + (DST)[1] = (SRC)[1]; \ + (DST)[2] = (SRC)[2]; \ + (DST)[3] = (SRC)[3] + +#define CHAR2WORD(C, I) \ + char2word((C), (I)[0]); \ + char2word((C) + 4, (I)[1]); \ + char2word((C) + 8, (I)[2]); \ + char2word((C) + 12, (I)[3]) + +#define WORD2CHAR(I, C) \ + word2char((I)[0], (C)); \ + word2char((I)[1], (C + 4)); \ + word2char((I)[2], (C + 8)); \ + word2char((I)[3], (C + 12)) + +#define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \ + (T0) = (X3) ^ (ks->data)[(rbase)]; \ + (T1) = (X4) ^ (ks->data)[(rbase) + 1]; \ + (T1) ^= (T0); \ + (T1) = G_FUNC(T1); \ + (T0) += (T1); \ + (T0) = G_FUNC(T0); \ + (T1) += (T0); \ + (T1) = G_FUNC(T1); \ + (T0) += (T1); \ + (X1) ^= (T0); \ + (X2) ^= (T1) + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct seed_key_st { + PRUint32 data[32]; +} SEED_KEY_SCHEDULE; + +struct SEEDContextStr { + unsigned char iv[SEED_BLOCK_SIZE]; + SEED_KEY_SCHEDULE ks; + int mode; + unsigned int encrypt; +}; + +void SEED_set_key(const unsigned char rawkey[SEED_KEY_LENGTH], + SEED_KEY_SCHEDULE *ks); + +void SEED_encrypt(const unsigned char s[SEED_BLOCK_SIZE], + unsigned char d[SEED_BLOCK_SIZE], + const SEED_KEY_SCHEDULE *ks); +void SEED_decrypt(const unsigned char s[SEED_BLOCK_SIZE], + unsigned char d[SEED_BLOCK_SIZE], + const SEED_KEY_SCHEDULE *ks); + +void SEED_ecb_encrypt(const unsigned char *in, unsigned char *out, + const SEED_KEY_SCHEDULE *ks, int enc); +void SEED_cbc_encrypt(const unsigned char *in, unsigned char *out, + size_t len, const SEED_KEY_SCHEDULE *ks, + unsigned char ivec[SEED_BLOCK_SIZE], int enc); + +#ifdef __cplusplus +} +#endif + +#endif /* HEADER_SEED_H */ |