diff options
Diffstat (limited to 'src/lib/libcrypto/des/rand_key.c')
-rw-r--r-- | src/lib/libcrypto/des/rand_key.c | 162 |
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 | ||
62 | static int seed=0; | 59 | int DES_random_key(DES_cblock *ret) |
63 | static des_cblock init; | ||
64 | |||
65 | void des_random_seed(key) | ||
66 | des_cblock key; | ||
67 | { | ||
68 | memcpy(init,key,sizeof(des_cblock)); | ||
69 | seed=1; | ||
70 | } | ||
71 | |||
72 | void des_random_key(ret) | ||
73 | unsigned 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 | } |