sha512-224.c (700B)
1 /* public domain sha512/224 implementation based on fips180-3 */ 2 #include <stdint.h> 3 #include <string.h> 4 #include "../sha512-224.h" 5 6 extern void sha512_sum_n(void *, uint8_t *, int n); 7 8 void 9 sha512_224_init(void *ctx) 10 { 11 struct sha512_224 *s = ctx; 12 s->len = 0; 13 s->h[0] = 0x8c3d37c819544da2ULL; 14 s->h[1] = 0x73e1996689dcd4d6ULL; 15 s->h[2] = 0x1dfab7ae32ff9c82ULL; 16 s->h[3] = 0x679dd514582f9fcfULL; 17 s->h[4] = 0x0f6d2b697bd44da8ULL; 18 s->h[5] = 0x77e36f7304c48942ULL; 19 s->h[6] = 0x3f9d85a86a1d36c8ULL; 20 s->h[7] = 0x1112e6ad91d692a1ULL; 21 } 22 23 void 24 sha512_224_sum(void *ctx, uint8_t md[SHA512_224_DIGEST_LENGTH]) 25 { 26 uint8_t buf[32]; 27 sha512_sum_n(ctx, buf, 4); 28 memcpy(md, buf, SHA512_224_DIGEST_LENGTH); 29 }