crypto/external/bsd/heimdal/dist/lib/hcrypto/rnd_keys.c

   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
  52 void HC_DEPRECATED
  53 DES_rand_data(void *outdata, int size)
  54 {
  55     RAND_bytes(outdata, size);
  56 }
  57
  58 void HC_DEPRECATED
  59 DES_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
  66 void HC_DEPRECATED
  67 DES_rand_data_key(DES_cblock *key);
  68
  69 /*
  70  * Generate a random DES key.
  71  */
  72
  73 void HC_DEPRECATED
  74 DES_rand_data_key(DES_cblock *key)
  75 {
  76     DES_new_random_key(key);
  77 }
  78
  79 void HC_DEPRECATED
  80 DES_set_sequence_number(void *ll)
  81 {
  82 }
  83
  84 void HC_DEPRECATED
  85 DES_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
 101 int HC_DEPRECATED
 102 DES_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
 121 void HC_DEPRECATED
 122 DES_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
 136 void HC_DEPRECATED
 137 DES_random_key(DES_cblock *key)
 138 {
 139     if (DES_new_random_key(key))
 140         abort();
 141 }