void threefish512_enc(void* data, const threefish512_ctx_t* ctx){
uint8_t i=0,s=0;
/* old constans, changed at round 2 of the SHA-3 contest
uint8_t r0[8] = {38, 48, 34, 26, 33, 39, 29, 33};
uint8_t r1[8] = {30, 20, 14, 12, 49, 27, 26, 51};
uint8_t r2[8] = {50, 43, 15, 58, 8, 41, 11, 39};
uint8_t r3[8] = {53, 31, 27, 7, 42, 14, 9, 35};
*/
uint8_t r0[8] = {46, 33, 17, 44, 39, 13, 25, 8};
uint8_t r1[8] = {36, 27, 49, 9, 30, 50, 29, 35};
uint8_t r2[8] = {19, 14, 36, 54, 34, 10, 39, 56};
uint8_t r3[8] = {37, 42, 39, 56, 24, 17, 43, 22};
do{
if(i%4==0){
add_key_8(data, ctx, s);
++s;
}
threefish_mix((uint8_t*)data + 0, r0[i%8]);
threefish_mix((uint8_t*)data + 16, r1[i%8]);
threefish_mix((uint8_t*)data + 32, r2[i%8]);
threefish_mix((uint8_t*)data + 48, r3[i%8]);
permute_8(data);
++i;
}while(i!=72);
add_key_8(data, ctx, s);
}
void threefish256_enc(void *data, const threefish256_ctx_t *ctx){
uint8_t i=0,s=0;
/* old constans, changed at round 2 of the SHA-3 contest
uint8_t r0[8] = { 5, 36, 13, 58, 26, 53, 11, 59};
uint8_t r1[8] = {56, 28, 46, 44, 20, 35, 42, 50};
*/
uint8_t r0[8] = {14, 52, 23, 5, 25, 46, 58, 32};
uint8_t r1[8] = {16, 57, 40, 37, 33, 12, 22, 32};
do{
if(i%4==0){
add_key_4(data, ctx, s);
++s;
}
threefish_mix(data, r0[i%8]);
threefish_mix((uint8_t*)data + 16, r1[i%8]);
permute_4(data);
++i;
}while(i!=72);
add_key_4(data, ctx, s);
}
void threefish1024_enc(void *data, const threefish1024_ctx_t *ctx){
uint8_t i=0,s=0;
/* old constans, changed at round 2 of the SHA-3 contest
uint8_t r0[8] = {55, 25, 33, 34, 28, 17, 58, 47};
uint8_t r1[8] = {43, 25, 8, 43, 7, 6, 7, 49};
uint8_t r2[8] = {37, 46, 18, 25, 47, 18, 32, 27};
uint8_t r3[8] = {40, 13, 57, 60, 48, 25, 45, 58};
uint8_t r4[8] = {16, 14, 21, 44, 51, 43, 19, 37};
uint8_t r5[8] = {22, 13, 12, 9, 9, 42, 18, 48};
uint8_t r6[8] = {38, 52, 32, 59, 35, 40, 2, 53};
uint8_t r7[8] = {12, 57, 54, 34, 41, 15, 56, 56};
*/
uint8_t r0[8] = {24, 38, 33, 5, 41, 16, 31, 9};
uint8_t r1[8] = {13, 19, 4, 20, 9, 34, 44, 48};
uint8_t r2[8] = { 8, 10, 51, 48, 37, 56, 47, 35};
uint8_t r3[8] = {47, 55, 13, 41, 31, 51, 46, 52};
uint8_t r4[8] = { 8, 49, 34, 47, 12, 4, 19, 23};
uint8_t r5[8] = {17, 18, 41, 28, 47, 53, 42, 31};
uint8_t r6[8] = {22, 23, 59, 16, 44, 42, 44, 37};
uint8_t r7[8] = {37, 52, 17, 25, 30, 41, 25, 20};
do{
if(i%4==0){
add_key_16(data, ctx, s);
++s;
}
threefish_mix((uint8_t*)data + 0, r0[i%8]);
threefish_mix((uint8_t*)data + 16, r1[i%8]);
threefish_mix((uint8_t*)data + 32, r2[i%8]);
threefish_mix((uint8_t*)data + 48, r3[i%8]);
threefish_mix((uint8_t*)data + 64, r4[i%8]);
threefish_mix((uint8_t*)data + 80, r5[i%8]);
threefish_mix((uint8_t*)data + 96, r6[i%8]);
threefish_mix((uint8_t*)data +112, r7[i%8]);
permute_16(data);
++i;
}while(i!=80);
add_key_16(data, ctx, s);
}
