crypto/des/rand_key.c

   1 /*
   2  * Copyright 1998-2016 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 #include <openssl/des.h>
  11 #include <openssl/rand.h>
  12
  13 int DES_random_key(DES_cblock *ret)
  14 {
  15     do {
  16         if (RAND_bytes((unsigned char *)ret, sizeof(DES_cblock)) != 1)
  17             return (0);
  18     } while (DES_is_weak_key(ret));
  19     DES_set_odd_parity(ret);
  20     return 1;
  21 }