59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/* $NetBSD: orand_key.c,v 1.1 2003/07/24 15:14:20 itojun Exp $ */
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/*
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* Copyright (C) 2003 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "des_locl.h"
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void des_random_seed(des_cblock *key)
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{
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}
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int des_random_key(des_cblock *ret)
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{
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u_int32_t v;
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u_int8_t *p, *ep;
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do {
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p = (u_int8_t *)ret;
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ep = (u_int8_t *)(ret + sizeof(*ret));
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while (p + sizeof(v) <= ep) {
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v = arc4random();
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*(u_int32_t *)p = v;
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p += sizeof(v);
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}
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if (ep - p) {
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v = arc4random();
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memcpy(p, &v, ep - p);
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}
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} while (des_is_weak_key(ret));
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des_set_odd_parity(ret);
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return (1);
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}
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