summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/des/rand_key.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/des/rand_key.c')
-rw-r--r--src/lib/libcrypto/des/rand_key.c162
1 files changed, 56 insertions, 106 deletions
diff --git a/src/lib/libcrypto/des/rand_key.c b/src/lib/libcrypto/des/rand_key.c
index 8c30bd029a..2398165568 100644
--- a/src/lib/libcrypto/des/rand_key.c
+++ b/src/lib/libcrypto/des/rand_key.c
@@ -1,118 +1,68 @@
1/* crypto/des/rand_key.c */ 1/* crypto/des/rand_key.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2/* ====================================================================
3 * All rights reserved. 3 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
4 * 4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without 5 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions 6 * modification, are permitted provided that the following conditions
25 * are met: 7 * are met:
26 * 1. Redistributions of source code must retain the copyright 8 *
27 * notice, this list of conditions and the following disclaimer. 9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
28 * 2. Redistributions in binary form must reproduce the above copyright 12 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the 13 * notice, this list of conditions and the following disclaimer in
30 * documentation and/or other materials provided with the distribution. 14 * the documentation and/or other materials provided with the
31 * 3. All advertising materials mentioning features or use of this software 15 * distribution.
32 * must display the following acknowledgement: 16 *
33 * "This product includes cryptographic software written by 17 * 3. All advertising materials mentioning features or use of this
34 * Eric Young (eay@cryptsoft.com)" 18 * software must display the following acknowledgment:
35 * The word 'cryptographic' can be left out if the rouines from the library 19 * "This product includes software developed by the OpenSSL Project
36 * being used are not cryptographic related :-). 20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
37 * 4. If you include any Windows specific code (or a derivative thereof) from 21 *
38 * the apps directory (application code) you must include an acknowledgement: 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 23 * endorse or promote products derived from this software without
40 * 24 * prior written permission. For written permission, please contact
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 25 * openssl-core@openssl.org.
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 *
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * 5. Products derived from this software may not be called "OpenSSL"
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 28 * nor may "OpenSSL" appear in their names without prior written
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * permission of the OpenSSL Project.
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 *
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * 6. Redistributions of any form whatsoever must retain the following
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * acknowledgment:
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * "This product includes software developed by the OpenSSL Project
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
51 * SUCH DAMAGE. 35 *
52 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
53 * The licence and distribution terms for any publically available version or 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * derivative of this code cannot be changed. i.e. this code cannot simply be 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
55 * copied and put under another distribution licence 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
56 * [including the GNU Public Licence.] 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
57 */ 54 */
58 55
59#include "des_locl.h" 56#include <openssl/des.h>
60#include <time.h> 57#include <openssl/rand.h>
61 58
62static int seed=0; 59int DES_random_key(DES_cblock *ret)
63static des_cblock init;
64
65void des_random_seed(key)
66des_cblock key;
67 {
68 memcpy(init,key,sizeof(des_cblock));
69 seed=1;
70 }
71
72void des_random_key(ret)
73unsigned char *ret;
74 { 60 {
75 des_key_schedule ks; 61 do
76 static DES_LONG c=0;
77 static unsigned short pid=0;
78 static des_cblock data={0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef};
79 des_cblock key;
80 unsigned char *p;
81 DES_LONG t;
82 int i;
83
84#ifdef MSDOS
85 pid=1;
86#else
87 if (!pid) pid=getpid();
88#endif
89 p=key;
90 if (seed)
91 { 62 {
92 for (i=0; i<8; i++) 63 if (RAND_bytes((unsigned char *)ret, sizeof(DES_cblock)) != 1)
93 { 64 return (0);
94 data[i] ^= init[i]; 65 } while (DES_is_weak_key(ret));
95 init[i]=0; 66 DES_set_odd_parity(ret);
96 } 67 return (1);
97 seed=0;
98 }
99 t=(DES_LONG)time(NULL);
100 l2c(t,p);
101 t=(DES_LONG)((pid)|((c++)<<16));
102 l2c(t,p);
103
104 des_set_odd_parity((des_cblock *)data);
105 des_set_key((des_cblock *)data,ks);
106 des_cbc_cksum((des_cblock *)key,(des_cblock *)key,
107 (long)sizeof(key),ks,(des_cblock *)data);
108
109 des_set_odd_parity((des_cblock *)key);
110 des_set_key((des_cblock *)key,ks);
111 des_cbc_cksum((des_cblock *)key,(des_cblock *)data,
112 (long)sizeof(key),ks,(des_cblock *)key);
113
114 memcpy(ret,data,sizeof(key));
115 memset(key,0,sizeof(key));
116 memset(ks,0,sizeof(ks));
117 t=0;
118 } 68 }