sbase

suckless unix tools
git clone git://git.2f30.org/sbase
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sha224.c (505B)


      1 /* public domain sha224 implementation based on fips180-3 */
      2 #include <stdint.h>
      3 #include "../sha224.h"
      4 
      5 extern void sha256_sum_n(void *, uint8_t *, int n);
      6 
      7 void
      8 sha224_init(void *ctx)
      9 {
     10 	struct sha224 *s = ctx;
     11 	s->len = 0;
     12 	s->h[0] = 0xc1059ed8;
     13 	s->h[1] = 0x367cd507;
     14 	s->h[2] = 0x3070dd17;
     15 	s->h[3] = 0xf70e5939;
     16 	s->h[4] = 0xffc00b31;
     17 	s->h[5] = 0x68581511;
     18 	s->h[6] = 0x64f98fa7;
     19 	s->h[7] = 0xbefa4fa4;
     20 }
     21 
     22 void
     23 sha224_sum(void *ctx, uint8_t md[SHA224_DIGEST_LENGTH])
     24 {
     25 	sha256_sum_n(ctx, md, 8);
     26 }