1/*	$NetBSD: rnd_keys.c,v 1.1.1.1 2011/04/13 18:14:51 elric Exp $	*/
2
3/*
4 * Copyright (c) 1995, 1996, 1997, 1999 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include "config.h"
37
38
39#define HC_DEPRECATED
40
41#ifdef KRB5
42#include <krb5/krb5-types.h>
43#endif
44#include <stdlib.h>
45
46#include <des.h>
47#include <rand.h>
48
49#undef __attribute__
50#define __attribute__(X)
51
52void HC_DEPRECATED
53DES_rand_data(void *outdata, int size)
54{
55    RAND_bytes(outdata, size);
56}
57
58void HC_DEPRECATED
59DES_generate_random_block(DES_cblock *block)
60{
61    RAND_bytes(block, sizeof(*block));
62}
63
64#define DES_rand_data_key hc_DES_rand_data_key
65
66void HC_DEPRECATED
67DES_rand_data_key(DES_cblock *key);
68
69/*
70 * Generate a random DES key.
71 */
72
73void HC_DEPRECATED
74DES_rand_data_key(DES_cblock *key)
75{
76    DES_new_random_key(key);
77}
78
79void HC_DEPRECATED
80DES_set_sequence_number(void *ll)
81{
82}
83
84void HC_DEPRECATED
85DES_set_random_generator_seed(DES_cblock *seed)
86{
87    RAND_seed(seed, sizeof(*seed));
88}
89
90/**
91 * Generate a random des key using a random block, fixup parity and
92 * skip weak keys.
93 *
94 * @param key is set to a random key.
95 *
96 * @return 0 on success, non zero on random number generator failure.
97 *
98 * @ingroup hcrypto_des
99 */
100
101int HC_DEPRECATED
102DES_new_random_key(DES_cblock *key)
103{
104    do {
105	if (RAND_bytes(key, sizeof(*key)) != 1)
106	    return 1;
107	DES_set_odd_parity(key);
108    } while(DES_is_weak_key(key));
109
110    return(0);
111}
112
113/**
114 * Seed the random number generator. Deprecated, use @ref page_rand
115 *
116 * @param seed a seed to seed that random number generate with.
117 *
118 * @ingroup hcrypto_des
119 */
120
121void HC_DEPRECATED
122DES_init_random_number_generator(DES_cblock *seed)
123{
124    RAND_seed(seed, sizeof(*seed));
125}
126
127/**
128 * Generate a random key, deprecated since it doesn't return an error
129 * code, use DES_new_random_key().
130 *
131 * @param key is set to a random key.
132 *
133 * @ingroup hcrypto_des
134 */
135
136void HC_DEPRECATED
137DES_random_key(DES_cblock *key)
138{
139    if (DES_new_random_key(key))
140	abort();
141}
142