- while(length_b >= ctx->r){
- keccak_nextBlock(ctx, block);
- block = (uint8_t*)block + ctx->bs;
- length_b -= ctx->r;
- }
- memxor(ctx->a, block, (length_b)/8);
- /* append 1 */
- if(length_b & 7){
- /* we have some single bits */
- uint8_t t;
- t = ((uint8_t*)block)[length_b / 8] >> (8 - (length_b & 7));
- t |= 0x01 << (length_b & 7);
- ((uint8_t*)ctx->a)[length_b / 8] ^= t;
- }else{
- ((uint8_t*)ctx->a)[length_b / 8] ^= 0x01;
- }
- if(length_b / 8 + 1 + 3 <= ctx->bs){
- *((uint8_t*)ctx->a + length_b / 8 + 1) ^= ctx->d;
- *((uint8_t*)ctx->a + length_b / 8 + 2) ^= ctx->bs;
- *((uint8_t*)ctx->a + length_b / 8 + 3) ^= 1;
- }else{
- if(length_b / 8 + 1 + 2 <= ctx->bs){
- *((uint8_t*)ctx->a + length_b / 8 + 1) ^= ctx->d;
- *((uint8_t*)ctx->a + length_b / 8 + 2) ^= ctx->bs;
- keccak_f1600(ctx->a);
- ((uint8_t*)ctx->a)[0] ^= 0x01;
- }else{
- if(length_b/8+1+1 <= ctx->bs){
- *((uint8_t*)ctx->a + length_b / 8 + 1) ^= ctx->d;
- keccak_f1600(ctx->a);
- ((uint8_t*)ctx->a)[0] ^= ctx->bs;
- ((uint8_t*)ctx->a)[1] ^= 0x01;
- }else{
- keccak_f1600(ctx->a);
- ((uint8_t*)ctx->a)[0] ^= ctx->d;
- ((uint8_t*)ctx->a)[1] ^= ctx->bs;
- ((uint8_t*)ctx->a)[2] ^= 0x01;
- }
- }
- }
- keccak_f1600(ctx->a);
-}
-
-void keccak224_ctx2hash(void* dest, keccak_ctx_t* ctx){
- keccak_ctx2hash(dest, 224, ctx);
-}
-
-void keccak256_ctx2hash(void* dest, keccak_ctx_t* ctx){
- keccak_ctx2hash(dest, 256, ctx);