* \email daniel.otte@rub.de
* \date 2009-05-19
* \license GPLv3 or later
- *
+ *
*/
#include "groestl_small.h"
}else{
m[0] ^= r;
}
-#if DEBUG
+#if DEBUG
if(r<2){
cli_putstr_P(PSTR("\r\npost add-const"));
dump_m(m);
m[i+((j-i+8)%8)*8] = tmp[j];
}
}
-#if DEBUG
+#if DEBUG
if(r<2){
cli_putstr_P(PSTR("\r\npost shift-bytes"));
dump_m(m);
}
-#endif
+#endif
for(i=0; i<8; ++i){
memcpy(tmp, m+8*i, 8);
for(j=0; j<8; ++j){
cli_putstr_P(PSTR("\r\npost mix-bytes"));
dump_m(m);
}
-#endif
+#endif
}
}
void groestl224_init(groestl224_ctx_t* ctx){
memset(ctx->h, 0, 8*8);
ctx->h[8*8-1] = 224;
- ctx->counter = 0;
+ ctx->counter = 1;
}
void groestl256_init(groestl256_ctx_t* ctx){
memset(ctx->h, 0, 8*8);
ctx->h[8*8-2] = 1;
- ctx->counter = 0;
+ ctx->counter = 1;
}
void groestl_small_nextBlock(groestl_small_ctx_t* ctx, const void* block){
tmp1[j*8+i] = ((uint8_t*)block)[i*8+j];
}
}
-*/
+*/
memcpy(tmp1, block, 64);
memcpy(tmp2, tmp1, 64);
memxor(tmp1, ctx->h, 64);
}
memset(buffer, 0, 64);
memcpy(buffer, block, (length_b+7)/8);
- buffer[length_b/8] |= 0x80>>(length_b%8);
+ buffer[length_b/8] |= 0x80>>(length_b&0x7);
if(length_b>512-65){
groestl_small_nextBlock(ctx, buffer);
memset(buffer, 0, 64-4);
}
- ctx->counter++;
+// ctx->counter++;
buffer[64-1] = (uint8_t)(ctx->counter);
buffer[64-2] = (uint8_t)((ctx->counter)>>8);
buffer[64-3] = (uint8_t)((ctx->counter)>>16);
#if DEBUG
cli_putstr_P(PSTR("\r\npost finalisation"));
dump_m(tmp);
-#endif
+#endif
memcpy(dest, tmp+64-outlength_b/8, outlength_b/8);
}