1/* public domain sha224 implementation based on fips180-3 */
 2#include <stdint.h>
 3#include "../sha224.h"
 4
 5extern void sha256_sum_n(void *, uint8_t *, int n);
 6
 7void
 8sha224_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
22void
23sha224_sum(void *ctx, uint8_t md[SHA224_DIGEST_LENGTH])
24{
25	sha256_sum_n(ctx, md, 7);
26}