virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

remove useless parameter

Browse Source 
Originally committed as revision 7544 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-01-16 16:29:01 +00:00
parent 14bc38498a
commit cc6b4da83a
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libavutil/aes.c
View File

@ -50,11 +50,11 @@ static inline void addkey(uint64_t state[2], uint64_t round_key[2]){
state[1] ^= round_key[1]; state[1] ^= round_key[1];
} }
static void subshift(uint8_t s0[4], uint8_t s1[4], uint8_t s2[4], uint8_t s3[4], uint8_t *box){ static void subshift(uint8_t s0[4], uint8_t s1[4], uint8_t s3[4], uint8_t *box){
int t; int t;
s0[0]=box[s0[ 0]]; s0[ 4]=box[s0[ 4]]; s0[ 8]=box[s0[ 8]]; s0[12]=box[s0[12]]; s0[0]=box[s0[ 0]]; s0[ 4]=box[s0[ 4]]; s0[ 8]=box[s0[ 8]]; s0[12]=box[s0[12]];
t=s1[0]; s1[0]=box[s1[ 4]]; s1[ 4]=box[s1[ 8]]; s1[ 8]=box[s1[12]]; s1[12]=box[t]; t=s1[0]; s1[0]=box[s1[ 4]]; s1[ 4]=box[s1[ 8]]; s1[ 8]=box[s1[12]]; s1[12]=box[t];
t=s2[0]; s2[0]=box[s2[ 8]]; s2[ 8]=box[ t]; t=s2[ 4]; s2[ 4]=box[s2[12]]; s2[12]=box[t]; t=s0[2]; s0[2]=box[s0[10]]; s0[10]=box[ t]; t=s0[ 6]; s0[ 6]=box[s0[14]]; s0[14]=box[t];
t=s3[0]; s3[0]=box[s3[12]]; s3[12]=box[s3[ 8]]; s3[ 8]=box[s3[ 4]]; s3[ 4]=box[t]; t=s3[0]; s3[0]=box[s3[12]]; s3[12]=box[s3[ 8]]; s3[ 8]=box[s3[ 4]]; s3[ 4]=box[t];
} }
@ -96,7 +96,7 @@ static inline void crypt(AVAES *a, int s, uint8_t *sbox, uint32_t *multbl){
mix2(a->state, multbl, 3-s, 1+s); mix2(a->state, multbl, 3-s, 1+s);
} }
addkey(a->state, a->round_key[1]); addkey(a->state, a->round_key[1]);
subshift(a->state[0], a->state[0]+3-s, a->state[0]+2, a->state[0]+1+s, sbox); subshift(a->state[0], a->state[0]+3-s, a->state[0]+1+s, sbox);
addkey(a->state, a->round_key[0]); addkey(a->state, a->round_key[0]);
} }
@ -175,7 +175,7 @@ int av_aes_init(AVAES *a, uint8_t *key, int key_bits, int decrypt) {
if(decrypt){ if(decrypt){
for(i=1; i<rounds; i++){ for(i=1; i<rounds; i++){
subshift(a->round_key[i][0], a->round_key[i][0]+3, a->round_key[i][0]+2, a->round_key[i][0]+1, sbox); subshift(a->round_key[i][0], a->round_key[i][0]+3, a->round_key[i][0]+1, sbox);
mix2(a->round_key[i], dec_multbl, 1, 3); mix2(a->round_key[i], dec_multbl, 1, 3);
} }
}else{ }else{