diff options
Diffstat (limited to 'crypto/aes/aes_cbc.c')
| -rw-r--r-- | crypto/aes/aes_cbc.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/crypto/aes/aes_cbc.c b/crypto/aes/aes_cbc.c index 8974dc35a5..c5f1a13c24 100644 --- a/crypto/aes/aes_cbc.c +++ b/crypto/aes/aes_cbc.c @@ -65,20 +65,20 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, int n; unsigned long len = length; - unsigned char tmp[16]; + unsigned char tmp[AES_BLOCK_SIZE]; assert(in && out && key && ivec); assert((AES_ENCRYPT == enc)||(AES_DECRYPT == enc)); if (AES_ENCRYPT == enc) { while (len >= AES_BLOCK_SIZE) { - for(n=0; n < 16; ++n) + for(n=0; n < AES_BLOCK_SIZE; ++n) tmp[n] = in[n] ^ ivec[n]; AES_encrypt(tmp, out, key); - memcpy(ivec, out, 16); - len -= 16; - in += 16; - out += 16; + memcpy(ivec, out, AES_BLOCK_SIZE); + len -= AES_BLOCK_SIZE; + in += AES_BLOCK_SIZE; + out += AES_BLOCK_SIZE; } if (len) { for(n=0; n < len; ++n) @@ -87,25 +87,25 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, tmp[n] = ivec[n]; AES_encrypt(tmp, tmp, key); memcpy(out, tmp, len); - memcpy(ivec, tmp, 16); + memcpy(ivec, tmp, AES_BLOCK_SIZE); } } else { while (len >= AES_BLOCK_SIZE) { - memcpy(tmp, in, 16); + memcpy(tmp, in, AES_BLOCK_SIZE); AES_decrypt(in, out, key); - for(n=0; n < 16; ++n) + for(n=0; n < AES_BLOCK_SIZE; ++n) out[n] ^= ivec[n]; - memcpy(ivec, tmp, 16); - len -= 16; - in += 16; - out += 16; + memcpy(ivec, tmp, AES_BLOCK_SIZE); + len -= AES_BLOCK_SIZE; + in += AES_BLOCK_SIZE; + out += AES_BLOCK_SIZE; } if (len) { - memcpy(tmp, in, 16); + memcpy(tmp, in, AES_BLOCK_SIZE); AES_decrypt(tmp, tmp, key); for(n=0; n < len; ++n) out[n] ^= ivec[n]; - memcpy(ivec, tmp, 16); + memcpy(ivec, tmp, AES_BLOCK_SIZE); } } } |