/*

 * Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the Apache License 2.0 (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

/*

 * ECDSA low level APIs are deprecated for public use, but still ok for

 * internal use.

 */

#include "internal/deprecated.h"

#include <openssl/ec.h>

#include "ec_local.h"

#include <openssl/err.h>

/*-

 * returns

 *      1: correct signature

 *      0: incorrect signature

 *     -1: error

 */

int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,

                    const ECDSA_SIG *sig, EC_KEY *eckey)

{

    if (eckey->meth->verify_sig != NULL)

        return eckey->meth->verify_sig(dgst, dgst_len, sig, eckey);

    ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);

    return -1;

}

/*-

 * returns

 *      1: correct signature

 *      0: incorrect signature

 *     -1: error

 */

int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,

                 const unsigned char *sigbuf, int sig_len, EC_KEY *eckey)

{

    if (eckey->meth->verify != NULL)

        return eckey->meth->verify(type, dgst, dgst_len, sigbuf, sig_len,

                                   eckey);

    ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);

    return -1;

}