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 }