1/* public domain sha224 implementation based on fips180-3 */
 2#include "../sha224.h"
 3#include <stdint.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}