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Correct AES counter mode, which incorrectly incremented the counter before

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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
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2
crypto/aes/aes_ctr.c
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@ -106,8 +106,8 @@ void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
while (l--) {
if (n == 0) {
AES_ctr128_inc(counter);
AES_encrypt(counter, tmp, key);
AES_ctr128_inc(counter);
}
*(out++) = *(in++) ^ tmp[n];
n = (n+1) % AES_BLOCK_SIZE;