diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2007-01-14 17:19:04 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2007-01-14 17:19:04 +0000 |
| commit | 95d1236bf50742f95aa83bc093e7db2cc9fed47a (patch) | |
| tree | 4f765ea229040de041ebfd48de71cbff3c75b114 /libavutil/aes.c | |
| parent | 388b5e69ec51a3c2a526c68149cc58492be3b66e (diff) | |
fix CONFIG_SMALL case
Originally committed as revision 7482 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavutil/aes.c')
| -rw-r--r-- | libavutil/aes.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavutil/aes.c b/libavutil/aes.c index 3ba5746a6f..de99f66fc1 100644 --- a/libavutil/aes.c +++ b/libavutil/aes.c @@ -52,7 +52,7 @@ static inline void addkey(uint64_t state[2], uint64_t round_key[2]){ #define SUBSHIFT2(s, box) t=s[0]; s[0]=box[s[ 8]]; s[ 8]=box[ t]; t=s[ 4]; s[ 4]=box[s[12]]; s[12]=box[t]; #define SUBSHIFT3(s, box) t=s[0]; s[0]=box[s[12]]; s[12]=box[s[ 8]]; s[ 8]=box[s[ 4]]; s[ 4]=box[t]; -#define ROT(x,s) ((x>>s)|(x<<(32-s)) +#define ROT(x,s) ((x<<s)|(x>>(32-s))) static inline void mix(uint8_t state[4][4], uint32_t multbl[4][256]){ int i; @@ -97,7 +97,7 @@ void av_aes_encrypt(AVAES *a){ addkey(a->state, a->round_key[r]); } -static init_multbl(uint8_t tbl[256], int c[4], uint8_t *log8, uint8_t *alog8){ +static init_multbl(uint8_t tbl[1024], int c[4], uint8_t *log8, uint8_t *alog8){ int i; for(i=4; i<1024; i++) tbl[i]= alog8[ log8[i/4] + log8[c[i&3]] ]; @@ -132,13 +132,17 @@ AVAES *av_aes_init(uint8_t *key, int key_bits) { // av_log(NULL, AV_LOG_ERROR, "%d, ", log8[i]); } init_multbl(dec_multbl[0], (int[4]){0xe, 0x9, 0xd, 0xb}, log8, alog8); +#ifndef CONFIG_SMALL init_multbl(dec_multbl[1], (int[4]){0xb, 0xe, 0x9, 0xd}, log8, alog8); init_multbl(dec_multbl[2], (int[4]){0xd, 0xb, 0xe, 0x9}, log8, alog8); init_multbl(dec_multbl[3], (int[4]){0x9, 0xd, 0xb, 0xe}, log8, alog8); +#endif init_multbl(enc_multbl[0], (int[4]){0x2, 0x1, 0x1, 0x3}, log8, alog8); +#ifndef CONFIG_SMALL init_multbl(enc_multbl[1], (int[4]){0x3, 0x2, 0x1, 0x1}, log8, alog8); init_multbl(enc_multbl[2], (int[4]){0x1, 0x3, 0x2, 0x1}, log8, alog8); init_multbl(enc_multbl[3], (int[4]){0x1, 0x1, 0x3, 0x2}, log8, alog8); +#endif } if(key_bits!=128 && key_bits!=192 && key_bits!=256) |