os/ossrv/ssl/libcrypto/src/crypto/des/rand_key.c
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 /* crypto/des/rand_key.c */
     2 /* ====================================================================
     3  * Copyright (c) 1998-2000 The OpenSSL Project.  All rights reserved.
     4  *
     5  * Redistribution and use in source and binary forms, with or without
     6  * modification, are permitted provided that the following conditions
     7  * are met:
     8  *
     9  * 1. Redistributions of source code must retain the above copyright
    10  *    notice, this list of conditions and the following disclaimer. 
    11  *
    12  * 2. Redistributions in binary form must reproduce the above copyright
    13  *    notice, this list of conditions and the following disclaimer in
    14  *    the documentation and/or other materials provided with the
    15  *    distribution.
    16  *
    17  * 3. All advertising materials mentioning features or use of this
    18  *    software must display the following acknowledgment:
    19  *    "This product includes software developed by the OpenSSL Project
    20  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
    21  *
    22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
    23  *    endorse or promote products derived from this software without
    24  *    prior written permission. For written permission, please contact
    25  *    openssl-core@openssl.org.
    26  *
    27  * 5. Products derived from this software may not be called "OpenSSL"
    28  *    nor may "OpenSSL" appear in their names without prior written
    29  *    permission of the OpenSSL Project.
    30  *
    31  * 6. Redistributions of any form whatsoever must retain the following
    32  *    acknowledgment:
    33  *    "This product includes software developed by the OpenSSL Project
    34  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
    35  *
    36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
    37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
    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  *
    54  */
    55 
    56 #include <openssl/des.h>
    57 #include <openssl/rand.h>
    58 
    59 EXPORT_C int DES_random_key(DES_cblock *ret)
    60 	{
    61 	do
    62 		{
    63 		if (RAND_bytes((unsigned char *)ret, sizeof(DES_cblock)) != 1)
    64 			return (0);
    65 		} while (DES_is_weak_key(ret));
    66 	DES_set_odd_parity(ret);
    67 	return (1);
    68 	}