A local copy of OpenSSL from GitHub
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/*
* Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/des.h>
#include <openssl/rand.h>
int DES_random_key(DES_cblock *ret)
{
do {
if (RAND_bytes((unsigned char *)ret, sizeof(DES_cblock)) != 1)
return (0);
} while (DES_is_weak_key(ret));
DES_set_odd_parity(ret);
return (1);
}