generic-library/openssl
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Don't zap AES CBC IV, when decrypting truncated content in place.

Browse Source
This commit is contained in:
Andy Polyakov 2005-01-18 00:26:52 +00:00
parent a7201e9a1b
commit 90cc40911b
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
crypto/aes/aes_cbc.c
View File

@ -120,9 +120,11 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
} }
if (len) { if (len) {
memcpy(tmp, in, AES_BLOCK_SIZE); memcpy(tmp, in, AES_BLOCK_SIZE);
AES_decrypt(tmp, tmp, key); AES_decrypt(tmp, out, key);
for(n=0; n < len; ++n) for(n=0; n < len; ++n)
out[n] = tmp[n] ^ ivec[n]; out[n] ^= ivec[n];
for(n=len; n < AES_BLOCK_SIZE; ++n)
out[n] = tmp[n];
memcpy(ivec, tmp, AES_BLOCK_SIZE); memcpy(ivec, tmp, AES_BLOCK_SIZE);
} }
} }