1/* public domain sha512/224 implementation based on fips180-3 */
 2#include "../sha512-224.h"
 3#include <stdint.h>
 4#include <string.h>
 5
 6extern void sha512_sum_n(void *, uint8_t *, int n);
 7
 8void
 9sha512_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
23void
24sha512_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}