crypto/des/rand_key.c

   1 /*
   2  * Copyright 1998-2020 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 /*
  11  * DES low level APIs are deprecated for public use, but still ok for internal
  12  * use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <openssl/des.h>
  17 #include <openssl/rand.h>
  18
  19 int DES_random_key(DES_cblock *ret)
  20 {
  21     do {
  22         if (RAND_priv_bytes((unsigned char *)ret, sizeof(DES_cblock)) != 1)
  23             return 0;
  24     } while (DES_is_weak_key(ret));
  25     DES_set_odd_parity(ret);
  26     return 1;
  27 }