openssl-1.1.0h/crypto/evp/p_enc.c


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/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (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
 */

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/rsa.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>

int EVP_PKEY_encrypt_old(unsigned char *ek, const unsigned char *key,
                         int key_len, EVP_PKEY *pubk)
{
    int ret = 0;

#ifndef OPENSSL_NO_RSA
    if (EVP_PKEY_id(pubk) != EVP_PKEY_RSA) {
#endif
        EVPerr(EVP_F_EVP_PKEY_ENCRYPT_OLD, EVP_R_PUBLIC_KEY_NOT_RSA);
#ifndef OPENSSL_NO_RSA
        goto err;
    }
    ret =
        RSA_public_encrypt(key_len, key, ek, EVP_PKEY_get0_RSA(pubk),
                           RSA_PKCS1_PADDING);
 err:
#endif
    return (ret);
}