diff options
author | Richard Levitte <levitte@openssl.org> | 2003-10-29 06:21:25 +0000 |
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committer | Richard Levitte <levitte@openssl.org> | 2003-10-29 06:21:25 +0000 |
commit | db5b10fab5a726805cc1c4aab36e52830b3ab61c (patch) | |
tree | 079c13bf4283e1bed530387d8a8df35321d1ee0f /crypto/aes | |
parent | fa5846e58b2caecbb33460a7d6f78b02719d312e (diff) |
Removing those memcpy()s also took away the possibility for in and out to
be the same. Therefore, the removed memcpy()s need to be restored.
Diffstat (limited to 'crypto/aes')
-rw-r--r-- | crypto/aes/aes_cbc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/crypto/aes/aes_cbc.c b/crypto/aes/aes_cbc.c index 0a28ab8d34..1222a21002 100644 --- a/crypto/aes/aes_cbc.c +++ b/crypto/aes/aes_cbc.c @@ -91,20 +91,21 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, } } else { while (len >= AES_BLOCK_SIZE) { + memcpy(tmp, in, AES_BLOCK_SIZE); AES_decrypt(in, out, key); for(n=0; n < AES_BLOCK_SIZE; ++n) out[n] ^= ivec[n]; - memcpy(ivec, in, AES_BLOCK_SIZE); + memcpy(ivec, tmp, AES_BLOCK_SIZE); len -= AES_BLOCK_SIZE; in += AES_BLOCK_SIZE; out += AES_BLOCK_SIZE; } if (len) { memcpy(tmp, in, AES_BLOCK_SIZE); - AES_decrypt(in, tmp, key); + AES_decrypt(tmp, tmp, key); for(n=0; n < len; ++n) out[n] = tmp[n] ^ ivec[n]; - memcpy(ivec, in, AES_BLOCK_SIZE); + memcpy(ivec, tmp, AES_BLOCK_SIZE); } } } |