-/* crypto/des/cbc_cksm.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 "des_locl.h"
DES_LONG DES_cbc_cksum(const unsigned char *in, DES_cblock *output,
- long length, DES_key_schedule *schedule,
- const_DES_cblock *ivec)
- {
- register DES_LONG tout0,tout1,tin0,tin1;
- register long l=length;
- DES_LONG tin[2];
- unsigned char *out = &(*output)[0];
- const unsigned char *iv = &(*ivec)[0];
+ long length, DES_key_schedule *schedule,
+ const_DES_cblock *ivec)
+{
+ register DES_LONG tout0, tout1, tin0, tin1;
+ register long l = length;
+ DES_LONG tin[2];
+ unsigned char *out = &(*output)[0];
+ const unsigned char *iv = &(*ivec)[0];
- c2l(iv,tout0);
- c2l(iv,tout1);
- for (; l>0; l-=8)
- {
- if (l >= 8)
- {
- c2l(in,tin0);
- c2l(in,tin1);
- }
- else
- c2ln(in,tin0,tin1,l);
-
- tin0^=tout0; tin[0]=tin0;
- tin1^=tout1; tin[1]=tin1;
- DES_encrypt1((DES_LONG *)tin,schedule,DES_ENCRYPT);
- /* fix 15/10/91 eay - thanks to keithr@sco.COM */
- tout0=tin[0];
- tout1=tin[1];
- }
- if (out != NULL)
- {
- l2c(tout0,out);
- l2c(tout1,out);
- }
- tout0=tin0=tin1=tin[0]=tin[1]=0;
- return(tout1);
- }
+ c2l(iv, tout0);
+ c2l(iv, tout1);
+ for (; l > 0; l -= 8) {
+ if (l >= 8) {
+ c2l(in, tin0);
+ c2l(in, tin1);
+ } else
+ c2ln(in, tin0, tin1, l);
+
+ tin0 ^= tout0;
+ tin[0] = tin0;
+ tin1 ^= tout1;
+ tin[1] = tin1;
+ DES_encrypt1((DES_LONG *)tin, schedule, DES_ENCRYPT);
+ /* fix 15/10/91 eay - thanks to keithr@sco.COM */
+ tout0 = tin[0];
+ tout1 = tin[1];
+ }
+ if (out != NULL) {
+ l2c(tout0, out);
+ l2c(tout1, out);
+ }
+ tout0 = tin0 = tin1 = tin[0] = tin[1] = 0;
+ /*
+ * Transform the data in tout1 so that it will match the return value
+ * that the MIT Kerberos mit_des_cbc_cksum API returns.
+ */
+ tout1 = ((tout1 >> 24L) & 0x000000FF)
+ | ((tout1 >> 8L) & 0x0000FF00)
+ | ((tout1 << 8L) & 0x00FF0000)
+ | ((tout1 << 24L) & 0xFF000000);
+ return (tout1);
+}
projects / openssl.git / blobdiff