xref: /openssl/crypto/evp/p_dec.c (revision b9a86d5d)
1 /*
2  * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9 
10 /* We need to use the deprecated RSA low level calls */
11 #define OPENSSL_SUPPRESS_DEPRECATED
12 
13 #include <stdio.h>
14 #include "internal/cryptlib.h"
15 #include <openssl/rsa.h>
16 #include <openssl/evp.h>
17 #include <openssl/objects.h>
18 #include <openssl/x509.h>
19 #include "crypto/evp.h"
20 
EVP_PKEY_decrypt_old(unsigned char * key,const unsigned char * ek,int ekl,EVP_PKEY * priv)21 int EVP_PKEY_decrypt_old(unsigned char *key, const unsigned char *ek, int ekl,
22                          EVP_PKEY *priv)
23 {
24     int ret = -1;
25     RSA *rsa = NULL;
26 
27     if (EVP_PKEY_get_id(priv) != EVP_PKEY_RSA) {
28         ERR_raise(ERR_LIB_EVP, EVP_R_PUBLIC_KEY_NOT_RSA);
29         goto err;
30     }
31 
32     rsa = evp_pkey_get0_RSA_int(priv);
33     if (rsa == NULL)
34         goto err;
35 
36     ret =
37         RSA_private_decrypt(ekl, ek, key, rsa, RSA_PKCS1_PADDING);
38  err:
39     return ret;
40 }
41