-/* crypto/des/rand_key.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * 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 "des_locl.h"
-#include <time.h>
-
-static int seed=0;
-static des_cblock init;
-
-void des_random_seed(key)
-des_cblock key;
- {
- memcpy(init,key,sizeof(des_cblock));
- seed=1;
- }
-
-void des_random_key(ret)
-unsigned char *ret;
- {
- des_key_schedule ks;
- static DES_LONG c=0;
- static unsigned short pid=0;
- static des_cblock data={0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef};
- des_cblock key;
- unsigned char *p;
- DES_LONG t;
- int i;
-
-#ifdef MSDOS
- pid=1;
-#else
- if (!pid) pid=getpid();
-#endif
- p=key;
- if (seed)
- {
- for (i=0; i<8; i++)
- {
- data[i] ^= init[i];
- init[i]=0;
- }
- seed=0;
- }
- t=(DES_LONG)time(NULL);
- l2c(t,p);
- t=(DES_LONG)((pid)|((c++)<<16));
- l2c(t,p);
-
- des_set_odd_parity((des_cblock *)data);
- des_set_key((des_cblock *)data,ks);
- des_cbc_cksum((des_cblock *)key,(des_cblock *)key,
- (long)sizeof(key),ks,(des_cblock *)data);
-
- des_set_odd_parity((des_cblock *)key);
- des_set_key((des_cblock *)key,ks);
- des_cbc_cksum((des_cblock *)key,(des_cblock *)data,
- (long)sizeof(key),ks,(des_cblock *)key);
-
- memcpy(ret,data,sizeof(key));
- memset(key,0,sizeof(key));
- memset(ks,0,sizeof(ks));
- t=0;
- }
+#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);
+}
projects / openssl.git / blobdiff