libtom.libtomcrypt/hmac_process.c

/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 *
 * Tom St Denis, [email protected], http://libtomcrypt.org
 */
/* Submited by Dobes Vandermeer  ([email protected]) */

#include "mycrypt.h"

#ifdef HMAC

int hmac_process(hmac_state *hmac, const unsigned char *buf, unsigned long len)
{
    int err;
    _ARGCHK(hmac != NULL);
    _ARGCHK(buf != NULL);
    if ((err = hash_is_valid(hmac->hash)) != CRYPT_OK) {
        return err;
    }
    return hash_descriptor[hmac->hash].process(&hmac->md, buf, len);
}

#endif