crypto/evp/p_enc.c

   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
  21 int EVP_PKEY_encrypt_old(unsigned char *ek, const unsigned char *key,
  22                          int key_len, EVP_PKEY *pubk)
  23 {
  24     int ret = 0;
  25     RSA *rsa = NULL;
  26
  27     if (EVP_PKEY_get_id(pubk) != 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(pubk);
  33     if (rsa == NULL)
  34         goto err;
  35
  36     ret =
  37         RSA_public_encrypt(key_len, key, ek, rsa, RSA_PKCS1_PADDING);
  38  err:
  39     return ret;
  40 }