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

Correct AES counter mode, which incorrectly incremented the counter before

Browse Source 
using it.
PR: 56
This commit is contained in:
Richard Levitte 2002-05-30 14:06:06 +00:00
parent 6cbe638294
commit dbdc5d14d3
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/aes/aes_ctr.c
View File

@ -106,8 +106,8 @@ void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
while (l--) { while (l--) {
if (n == 0) { if (n == 0) {
AES_ctr128_inc(counter);
AES_encrypt(counter, tmp, key); AES_encrypt(counter, tmp, key);
AES_ctr128_inc(counter);
} }
*(out++) = *(in++) ^ tmp[n]; *(out++) = *(in++) ^ tmp[n];
n = (n+1) % AES_BLOCK_SIZE; n = (n+1) % AES_BLOCK_SIZE;