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 }