sbase

suckless unix tools
git clone git://git.2f30.org/sbase
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sha512-256.c (617B)


      1 /* public domain sha512/256 implementation based on fips180-3 */
      2 #include <stdint.h>
      3 #include "../sha512-256.h"
      4 
      5 extern void sha512_sum_n(void *, uint8_t *, int n);
      6 
      7 void
      8 sha512_256_init(void *ctx)
      9 {
     10 	struct sha512_256 *s = ctx;
     11 	s->len = 0;
     12 	s->h[0] = 0x22312194fc2bf72cULL;
     13 	s->h[1] = 0x9f555fa3c84c64c2ULL;
     14 	s->h[2] = 0x2393b86b6f53b151ULL;
     15 	s->h[3] = 0x963877195940eabdULL;
     16 	s->h[4] = 0x96283ee2a88effe3ULL;
     17 	s->h[5] = 0xbe5e1e2553863992ULL;
     18 	s->h[6] = 0x2b0199fc2c85b8aaULL;
     19 	s->h[7] = 0x0eb72ddc81c52ca2ULL;
     20 }
     21 
     22 void
     23 sha512_256_sum(void *ctx, uint8_t md[SHA512_256_DIGEST_LENGTH])
     24 {
     25 	sha512_sum_n(ctx, md, 4);
     26 }