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