Cryptlib/OpenSSL/crypto/rsa/rsa_depr.c

   1 /*
   2  * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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 /*
  11  * NB: This file contains deprecated functions (compatibility wrappers to the
  12  * "new" versions).
  13  */
  14
  15 #include <openssl/opensslconf.h>
  16 #if OPENSSL_API_COMPAT >= 0x00908000L
  17 NON_EMPTY_TRANSLATION_UNIT
  18
  19 #else
  20
  21 # include <stdio.h>
  22 # include <time.h>
  23 # include "internal/cryptlib.h"
  24 # include <openssl/bn.h>
  25 # include <openssl/rsa.h>
  26
  27 RSA *RSA_generate_key(int bits, unsigned long e_value,
  28                       void (*callback) (int, int, void *), void *cb_arg)
  29 {
  30     int i;
  31     BN_GENCB *cb = BN_GENCB_new();
  32     RSA *rsa = RSA_new();
  33     BIGNUM *e = BN_new();
  34
  35     if (cb == NULL || rsa == NULL || e == NULL)
  36         goto err;
  37
  38     /*
  39      * The problem is when building with 8, 16, or 32 BN_ULONG, unsigned long
  40      * can be larger
  41      */
  42     for (i = 0; i < (int)sizeof(unsigned long) * 8; i++) {
  43         if (e_value & (1UL << i))
  44             if (BN_set_bit(e, i) == 0)
  45                 goto err;
  46     }
  47
  48     BN_GENCB_set_old(cb, callback, cb_arg);
  49
  50     if (RSA_generate_key_ex(rsa, bits, e, cb)) {
  51         BN_free(e);
  52         BN_GENCB_free(cb);
  53         return rsa;
  54     }
  55  err:
  56     BN_free(e);
  57     RSA_free(rsa);
  58     BN_GENCB_free(cb);
  59     return 0;
  60 }
  61 #endif