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Merge #9303: Update comments in ctaes

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8501bed Squashed 'src/crypto/ctaes/' changes from cd3c3ac..003a4ac (Pieter Wuille)
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MarcoFalke 2016-12-09 10:21:59 +01:00
commit 72bf1b3d09
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1 changed files with 4 additions and 4 deletions
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src/crypto/ctaes/ctaes.c
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@ -134,7 +134,7 @@ static void SubBytes(AES_state *s, int inv) {
D = U7; D = U7;
} }
/* Non-linear transformation (identical to the code in SubBytes) */ /* Non-linear transformation (shared between the forward and backward case) */
M1 = T13 & T6; M1 = T13 & T6;
M6 = T3 & T16; M6 = T3 & T16;
M11 = T1 & T15; M11 = T1 & T15;
@ -469,9 +469,9 @@ static void AES_encrypt(const AES_state* rounds, int nrounds, unsigned char* cip
static void AES_decrypt(const AES_state* rounds, int nrounds, unsigned char* plain16, const unsigned char* cipher16) { static void AES_decrypt(const AES_state* rounds, int nrounds, unsigned char* plain16, const unsigned char* cipher16) {
/* Most AES decryption implementations use the alternate scheme /* Most AES decryption implementations use the alternate scheme
* (the Equivalent Inverse Cipher), which looks more like encryption, but * (the Equivalent Inverse Cipher), which allows for more code reuse between
* needs different round constants. We can't reuse any code here anyway, so * the encryption and decryption code, but requires separate setup for both.
* don't bother. */ */
AES_state s = {{0}}; AES_state s = {{0}};
int round; int round;