lib/hcrypto/rnd_keys.c

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