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      1 /*
      2  * Copyright 1995-2022 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 
     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