Files
GmSSL/crypto/evp/p_dec.c
Zhi Guan eb21e9d572 update
2017-04-14 15:31:38 +08:00

98 lines
3.5 KiB
C

/* ====================================================================
* Copyright (c) 2014 - 2017 The GmSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the GmSSL Project.
* (http://gmssl.org/)"
*
* 4. The name "GmSSL Project" must not be used to endorse or promote
* products derived from this software without prior written
* permission. For written permission, please contact
* guanzhi1980@gmail.com.
*
* 5. Products derived from this software may not be called "GmSSL"
* nor may "GmSSL" appear in their names without prior written
* permission of the GmSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the GmSSL Project
* (http://gmssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*/
/*
* 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>
#include <openssl/sm2.h>
int EVP_PKEY_decrypt_old(unsigned char *key, const unsigned char *ek, int ekl,
EVP_PKEY *priv)
{
int ret = 0;
EVP_PKEY_CTX *ctx = NULL;
size_t siz;
#ifndef OPENSSL_NO_RSA
if (EVP_PKEY_id(priv) == EVP_PKEY_RSA) {
if ((ret = RSA_private_decrypt(ekl, ek, key, EVP_PKEY_get0_RSA(priv), RSA_PKCS1_PADDING)) < 0) {
EVPerr(EVP_F_EVP_PKEY_DECRYPT_OLD, ERR_R_RSA_LIB);
return 0;
}
}
#endif
#ifndef OPENSSL_NO_SM2
if (!(ctx = EVP_PKEY_CTX_new(priv, NULL))
|| !EVP_PKEY_decrypt_init(ctx)
|| !EVP_PKEY_CTX_set_ec_enc_type(ctx, NID_sm_scheme)
|| !EVP_PKEY_decrypt(ctx, key, &siz, ek, ekl)) {
EVPerr(EVP_F_EVP_PKEY_DECRYPT_OLD, ERR_R_EVP_LIB);
goto end;
}
ret = (int)siz;
#endif
end:
EVP_PKEY_CTX_free(ctx);
return (ret);
}