1/* public domain sha512/256 implementation based on fips180-3 */
 2#include "../sha512-256.h"
 3#include <stdint.h>
 4
 5extern void sha512_sum_n(void *, uint8_t *, int n);
 6
 7void
 8sha512_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
22void
23sha512_256_sum(void *ctx, uint8_t md[SHA512_256_DIGEST_LENGTH])
24{
25  sha512_sum_n(ctx, md, 4);
26}