-/* crypto/des/set_key.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
/*-
#include <openssl/crypto.h>
#include "des_locl.h"
+/* defaults to false */
OPENSSL_IMPLEMENT_GLOBAL(int, DES_check_key, 0)
- /*
- * defaults to false
- */
+
static const unsigned char odd_parity[256] = {
1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14,
16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31,
for (i = 0; i < DES_KEY_SZ; i++) {
if ((*key)[i] != odd_parity[(*key)[i]])
- return (0);
+ return 0;
}
- return (1);
+ return 1;
}
/*-
- * Weak and semi week keys as take from
+ * Weak and semi weak keys as taken from
* %A D.W. Davies
* %A W.L. Price
* %T Security for Computer Networks
* %I John Wiley & Sons
* %D 1984
- * Many thanks to smb@ulysses.att.com (Steven Bellovin) for the reference
- * (and actual cblock values).
*/
#define NUM_WEAK_KEY 16
static const DES_cblock weak_keys[NUM_WEAK_KEY] = {
int i;
for (i = 0; i < NUM_WEAK_KEY; i++)
- /*
- * Added == 0 to comparison, I obviously don't run this section very
- * often :-(, thanks to engineering@MorningStar.Com for the fix eay
- * 93/06/29 Another problem, I was comparing only the first 4 bytes,
- * 97/03/18
- */
if (memcmp(weak_keys[i], key, sizeof(DES_cblock)) == 0)
- return (1);
- return (0);
+ return 1;
+ return 0;
}
/*-
int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule)
{
if (!DES_check_key_parity(key))
- return (-1);
+ return -1;
if (DES_is_weak_key(key))
- return (-2);
+ return -2;
DES_set_key_unchecked(key, schedule);
return 0;
}
register int i;
#ifdef OPENBSD_DEV_CRYPTO
- memcpy(schedule->key, key, sizeof schedule->key);
+ memcpy(schedule->key, key, sizeof(schedule->key));
schedule->session = NULL;
#endif
k = &schedule->ks->deslong[0];
c2l(in, d);
/*
- * do PC1 in 47 simple operations :-) Thanks to John Fletcher
- * (john_fletcher@lccmail.ocf.llnl.gov) for the inspiration. :-)
+ * do PC1 in 47 simple operations. Thanks to John Fletcher
+ * for the inspiration.
*/
PERM_OP(d, c, t, 4, 0x0f0f0f0fL);
HPERM_OP(c, t, -2, 0xcccc0000L);
int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule)
{
- return (DES_set_key(key, schedule));
+ return DES_set_key(key, schedule);
}
-
-/*-
-#undef des_fixup_key_parity
-void des_fixup_key_parity(des_cblock *key)
- {
- des_set_odd_parity(key);
- }
-*/
projects / openssl.git / blobdiff