diff options
Diffstat (limited to 'cipher/rijndael.c')
| -rw-r--r-- | cipher/rijndael.c | 96 |
1 files changed, 94 insertions, 2 deletions
diff --git a/cipher/rijndael.c b/cipher/rijndael.c index 7a83718b..51c36c76 100644 --- a/cipher/rijndael.c +++ b/cipher/rijndael.c @@ -99,6 +99,40 @@ extern void _gcry_aes_aesni_cbc_dec (RIJNDAEL_context *ctx, unsigned char *iv, size_t nblocks); #endif +#ifdef USE_SSSE3 +/* SSSE3 (AMD64) vector permutation implementation of AES */ +extern void _gcry_aes_ssse3_do_setkey(RIJNDAEL_context *ctx, const byte *key); +extern void _gcry_aes_ssse3_prepare_decryption(RIJNDAEL_context *ctx); + +extern unsigned int _gcry_aes_ssse3_encrypt (const RIJNDAEL_context *ctx, + unsigned char *dst, + const unsigned char *src); +extern unsigned int _gcry_aes_ssse3_decrypt (const RIJNDAEL_context *ctx, + unsigned char *dst, + const unsigned char *src); +extern void _gcry_aes_ssse3_cfb_enc (RIJNDAEL_context *ctx, + unsigned char *outbuf, + const unsigned char *inbuf, + unsigned char *iv, size_t nblocks); +extern void _gcry_aes_ssse3_cbc_enc (RIJNDAEL_context *ctx, + unsigned char *outbuf, + const unsigned char *inbuf, + unsigned char *iv, size_t nblocks, + int cbc_mac); +extern void _gcry_aes_ssse3_ctr_enc (RIJNDAEL_context *ctx, + unsigned char *outbuf, + const unsigned char *inbuf, + unsigned char *ctr, size_t nblocks); +extern void _gcry_aes_ssse3_cfb_dec (RIJNDAEL_context *ctx, + unsigned char *outbuf, + const unsigned char *inbuf, + unsigned char *iv, size_t nblocks); +extern void _gcry_aes_ssse3_cbc_dec (RIJNDAEL_context *ctx, + unsigned char *outbuf, + const unsigned char *inbuf, + unsigned char *iv, size_t nblocks); +#endif + #ifdef USE_PADLOCK extern unsigned int _gcry_aes_padlock_encrypt (const RIJNDAEL_context *ctx, unsigned char *bx, @@ -182,7 +216,7 @@ do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen) int rounds; int i,j, r, t, rconpointer = 0; int KC; -#if defined(USE_AESNI) || defined(USE_PADLOCK) +#if defined(USE_AESNI) || defined(USE_PADLOCK) || defined(USE_SSSE3) unsigned int hwfeatures; #endif @@ -223,7 +257,7 @@ do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen) ctx->rounds = rounds; -#if defined(USE_AESNI) || defined(USE_PADLOCK) +#if defined(USE_AESNI) || defined(USE_PADLOCK) || defined(USE_SSSE3) hwfeatures = _gcry_get_hw_features (); #endif @@ -234,6 +268,9 @@ do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen) #ifdef USE_AESNI ctx->use_aesni = 0; #endif +#ifdef USE_SSSE3 + ctx->use_ssse3 = 0; +#endif if (0) { @@ -260,6 +297,16 @@ do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen) memcpy (ctx->padlockkey, key, keylen); } #endif +#ifdef USE_SSSE3 + else if (hwfeatures & HWF_INTEL_SSSE3) + { + ctx->encrypt_fn = _gcry_aes_ssse3_encrypt; + ctx->decrypt_fn = _gcry_aes_ssse3_decrypt; + ctx->prefetch_enc_fn = NULL; + ctx->prefetch_dec_fn = NULL; + ctx->use_ssse3 = 1; + } +#endif else { ctx->encrypt_fn = do_encrypt; @@ -278,6 +325,10 @@ do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen) else if (ctx->use_aesni) _gcry_aes_aesni_do_setkey (ctx, key); #endif +#ifdef USE_AESNI + else if (ctx->use_ssse3) + _gcry_aes_ssse3_do_setkey (ctx, key); +#endif else { const byte *sbox = ((const byte *)encT) + 1; @@ -403,6 +454,12 @@ prepare_decryption( RIJNDAEL_context *ctx ) _gcry_aes_aesni_prepare_decryption (ctx); } #endif /*USE_AESNI*/ +#ifdef USE_SSSE3 + else if (ctx->use_ssse3) + { + _gcry_aes_ssse3_prepare_decryption (ctx); + } +#endif /*USE_SSSE3*/ #ifdef USE_PADLOCK else if (ctx->use_padlock) { @@ -650,6 +707,13 @@ _gcry_aes_cfb_enc (void *context, unsigned char *iv, burn_depth = 0; } #endif /*USE_AESNI*/ +#ifdef USE_SSSE3 + else if (ctx->use_ssse3) + { + _gcry_aes_ssse3_cfb_enc (ctx, outbuf, inbuf, iv, nblocks); + burn_depth = 0; + } +#endif /*USE_SSSE3*/ else { rijndael_cryptfn_t encrypt_fn = ctx->encrypt_fn; @@ -697,6 +761,13 @@ _gcry_aes_cbc_enc (void *context, unsigned char *iv, burn_depth = 0; } #endif /*USE_AESNI*/ +#ifdef USE_SSSE3 + else if (ctx->use_ssse3) + { + _gcry_aes_ssse3_cbc_enc (ctx, outbuf, inbuf, iv, nblocks, cbc_mac); + burn_depth = 0; + } +#endif /*USE_SSSE3*/ else { rijndael_cryptfn_t encrypt_fn = ctx->encrypt_fn; @@ -752,6 +823,13 @@ _gcry_aes_ctr_enc (void *context, unsigned char *ctr, burn_depth = 0; } #endif /*USE_AESNI*/ +#ifdef USE_SSSE3 + else if (ctx->use_ssse3) + { + _gcry_aes_ssse3_ctr_enc (ctx, outbuf, inbuf, ctr, nblocks); + burn_depth = 0; + } +#endif /*USE_SSSE3*/ else { union { unsigned char x1[16] ATTR_ALIGNED_16; u32 x32[4]; } tmp; @@ -986,6 +1064,13 @@ _gcry_aes_cfb_dec (void *context, unsigned char *iv, burn_depth = 0; } #endif /*USE_AESNI*/ +#ifdef USE_SSSE3 + else if (ctx->use_ssse3) + { + _gcry_aes_ssse3_cfb_dec (ctx, outbuf, inbuf, iv, nblocks); + burn_depth = 0; + } +#endif /*USE_SSSE3*/ else { rijndael_cryptfn_t encrypt_fn = ctx->encrypt_fn; @@ -1032,6 +1117,13 @@ _gcry_aes_cbc_dec (void *context, unsigned char *iv, burn_depth = 0; } #endif /*USE_AESNI*/ +#ifdef USE_SSSE3 + else if (ctx->use_ssse3) + { + _gcry_aes_ssse3_cbc_dec (ctx, outbuf, inbuf, iv, nblocks); + burn_depth = 0; + } +#endif /*USE_SSSE3*/ else { unsigned char savebuf[BLOCKSIZE] ATTR_ALIGNED_16; |