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| author | appro <appro> | 2005-01-18 00:24:55 +0000 |
|---|---|---|
| committer | appro <appro> | 2005-01-18 00:24:55 +0000 |
| commit | 5a11c62448d2c1b50a35415d2411b703eeff4a50 (patch) | |
| tree | f0d2cc337a0f9f59a9fb256687a2f896feb2c9c0 | |
| parent | 96e2ba15ae73efe3cf9c9606a5ea51642b8d5379 (diff) | |
| download | openssl-5a11c62448d2c1b50a35415d2411b703eeff4a50.tar.gz | |
Don't zap AES CBC IV, when decrypting truncated content in place.
| -rw-r--r-- | crypto/aes/aes_cbc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/crypto/aes/aes_cbc.c b/crypto/aes/aes_cbc.c index f909aaf47..d2ba6bcdb 100644 --- a/crypto/aes/aes_cbc.c +++ b/crypto/aes/aes_cbc.c @@ -120,9 +120,11 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, } if (len) { memcpy(tmp, in, AES_BLOCK_SIZE); - AES_decrypt(tmp, tmp, key); + AES_decrypt(tmp, out, key); 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); } } |