1/* public domain sha224 implementation based on fips180-3 */
 2
 3#include "sha256.h"
 4#include <stdint.h>
 5
 6#define sha224 sha256 /*struct*/
 7
 8enum { SHA224_DIGEST_LENGTH = 28 };
 9
10/* reset state */
11void sha224_init(void *ctx);
12/* process message */
13#define sha224_update sha256_update
14/* get message digest */
15/* state is ruined after sum, keep a copy if multiple sum is needed */
16/* part of the message might be left in s, zero it if secrecy is needed */
17void sha224_sum(void *ctx, uint8_t md[SHA224_DIGEST_LENGTH]);