1998-12-21 10:52:47 +00:00
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/* crypto/des/des_enc.c */
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1998-12-21 10:56:39 +00:00
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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1998-12-21 10:52:47 +00:00
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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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 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include "des_locl.h"
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2004-05-11 12:46:24 +00:00
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#ifndef OPENSSL_FIPS
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2001-10-24 21:21:12 +00:00
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void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc)
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1998-12-21 10:52:47 +00:00
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{
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register DES_LONG l,r,t,u;
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#ifdef DES_PTR
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2002-03-04 16:08:53 +00:00
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register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
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1998-12-21 10:52:47 +00:00
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#endif
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#ifndef DES_UNROLL
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register int i;
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#endif
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register DES_LONG *s;
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r=data[0];
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l=data[1];
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IP(r,l);
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/* Things have been modified so that the initial rotate is
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* done outside the loop. This required the
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2002-03-04 16:08:53 +00:00
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* DES_SPtrans values in sp.h to be rotated 1 bit to the right.
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1998-12-21 10:52:47 +00:00
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* One perl script later and things have a 5% speed up on a sparc2.
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* Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
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* for pointing this out. */
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/* clear the top bits on machines with 8byte longs */
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/* shift left by 2 */
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r=ROTATE(r,29)&0xffffffffL;
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l=ROTATE(l,29)&0xffffffffL;
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2001-07-30 17:46:22 +00:00
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s=ks->ks->deslong;
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1998-12-21 10:52:47 +00:00
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/* I don't know if it is worth the effort of loop unrolling the
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* inner loop */
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if (enc)
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{
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#ifdef DES_UNROLL
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D_ENCRYPT(l,r, 0); /* 1 */
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D_ENCRYPT(r,l, 2); /* 2 */
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D_ENCRYPT(l,r, 4); /* 3 */
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D_ENCRYPT(r,l, 6); /* 4 */
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D_ENCRYPT(l,r, 8); /* 5 */
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D_ENCRYPT(r,l,10); /* 6 */
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D_ENCRYPT(l,r,12); /* 7 */
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D_ENCRYPT(r,l,14); /* 8 */
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D_ENCRYPT(l,r,16); /* 9 */
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D_ENCRYPT(r,l,18); /* 10 */
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D_ENCRYPT(l,r,20); /* 11 */
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D_ENCRYPT(r,l,22); /* 12 */
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D_ENCRYPT(l,r,24); /* 13 */
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D_ENCRYPT(r,l,26); /* 14 */
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D_ENCRYPT(l,r,28); /* 15 */
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D_ENCRYPT(r,l,30); /* 16 */
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#else
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for (i=0; i<32; i+=8)
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{
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D_ENCRYPT(l,r,i+0); /* 1 */
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D_ENCRYPT(r,l,i+2); /* 2 */
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D_ENCRYPT(l,r,i+4); /* 3 */
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D_ENCRYPT(r,l,i+6); /* 4 */
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}
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#endif
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}
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else
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{
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#ifdef DES_UNROLL
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D_ENCRYPT(l,r,30); /* 16 */
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D_ENCRYPT(r,l,28); /* 15 */
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D_ENCRYPT(l,r,26); /* 14 */
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D_ENCRYPT(r,l,24); /* 13 */
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D_ENCRYPT(l,r,22); /* 12 */
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D_ENCRYPT(r,l,20); /* 11 */
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D_ENCRYPT(l,r,18); /* 10 */
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D_ENCRYPT(r,l,16); /* 9 */
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D_ENCRYPT(l,r,14); /* 8 */
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D_ENCRYPT(r,l,12); /* 7 */
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D_ENCRYPT(l,r,10); /* 6 */
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D_ENCRYPT(r,l, 8); /* 5 */
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D_ENCRYPT(l,r, 6); /* 4 */
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D_ENCRYPT(r,l, 4); /* 3 */
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D_ENCRYPT(l,r, 2); /* 2 */
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D_ENCRYPT(r,l, 0); /* 1 */
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#else
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for (i=30; i>0; i-=8)
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{
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D_ENCRYPT(l,r,i-0); /* 16 */
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D_ENCRYPT(r,l,i-2); /* 15 */
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D_ENCRYPT(l,r,i-4); /* 14 */
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D_ENCRYPT(r,l,i-6); /* 13 */
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}
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#endif
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}
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/* rotate and clear the top bits on machines with 8byte longs */
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l=ROTATE(l,3)&0xffffffffL;
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r=ROTATE(r,3)&0xffffffffL;
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FP(r,l);
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data[0]=l;
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data[1]=r;
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l=r=t=u=0;
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}
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2001-10-24 21:21:12 +00:00
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void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc)
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1998-12-21 10:52:47 +00:00
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{
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register DES_LONG l,r,t,u;
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#ifdef DES_PTR
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2002-03-04 16:08:53 +00:00
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register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
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1998-12-21 10:52:47 +00:00
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#endif
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#ifndef DES_UNROLL
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register int i;
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#endif
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register DES_LONG *s;
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r=data[0];
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l=data[1];
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/* Things have been modified so that the initial rotate is
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* done outside the loop. This required the
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2002-03-04 16:08:53 +00:00
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* DES_SPtrans values in sp.h to be rotated 1 bit to the right.
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1998-12-21 10:52:47 +00:00
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* One perl script later and things have a 5% speed up on a sparc2.
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* Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
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* for pointing this out. */
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/* clear the top bits on machines with 8byte longs */
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1998-12-21 10:56:39 +00:00
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r=ROTATE(r,29)&0xffffffffL;
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l=ROTATE(l,29)&0xffffffffL;
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1998-12-21 10:52:47 +00:00
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2001-07-30 17:46:22 +00:00
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s=ks->ks->deslong;
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1998-12-21 10:52:47 +00:00
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/* I don't know if it is worth the effort of loop unrolling the
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* inner loop */
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if (enc)
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{
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#ifdef DES_UNROLL
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D_ENCRYPT(l,r, 0); /* 1 */
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D_ENCRYPT(r,l, 2); /* 2 */
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D_ENCRYPT(l,r, 4); /* 3 */
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D_ENCRYPT(r,l, 6); /* 4 */
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D_ENCRYPT(l,r, 8); /* 5 */
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D_ENCRYPT(r,l,10); /* 6 */
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D_ENCRYPT(l,r,12); /* 7 */
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D_ENCRYPT(r,l,14); /* 8 */
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D_ENCRYPT(l,r,16); /* 9 */
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D_ENCRYPT(r,l,18); /* 10 */
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D_ENCRYPT(l,r,20); /* 11 */
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D_ENCRYPT(r,l,22); /* 12 */
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D_ENCRYPT(l,r,24); /* 13 */
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D_ENCRYPT(r,l,26); /* 14 */
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D_ENCRYPT(l,r,28); /* 15 */
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D_ENCRYPT(r,l,30); /* 16 */
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#else
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for (i=0; i<32; i+=8)
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{
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D_ENCRYPT(l,r,i+0); /* 1 */
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D_ENCRYPT(r,l,i+2); /* 2 */
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D_ENCRYPT(l,r,i+4); /* 3 */
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D_ENCRYPT(r,l,i+6); /* 4 */
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}
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#endif
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}
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else
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{
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#ifdef DES_UNROLL
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D_ENCRYPT(l,r,30); /* 16 */
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D_ENCRYPT(r,l,28); /* 15 */
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D_ENCRYPT(l,r,26); /* 14 */
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D_ENCRYPT(r,l,24); /* 13 */
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D_ENCRYPT(l,r,22); /* 12 */
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D_ENCRYPT(r,l,20); /* 11 */
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D_ENCRYPT(l,r,18); /* 10 */
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D_ENCRYPT(r,l,16); /* 9 */
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D_ENCRYPT(l,r,14); /* 8 */
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D_ENCRYPT(r,l,12); /* 7 */
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D_ENCRYPT(l,r,10); /* 6 */
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D_ENCRYPT(r,l, 8); /* 5 */
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D_ENCRYPT(l,r, 6); /* 4 */
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D_ENCRYPT(r,l, 4); /* 3 */
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D_ENCRYPT(l,r, 2); /* 2 */
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D_ENCRYPT(r,l, 0); /* 1 */
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#else
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for (i=30; i>0; i-=8)
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{
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D_ENCRYPT(l,r,i-0); /* 16 */
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D_ENCRYPT(r,l,i-2); /* 15 */
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D_ENCRYPT(l,r,i-4); /* 14 */
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D_ENCRYPT(r,l,i-6); /* 13 */
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}
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#endif
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}
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/* rotate and clear the top bits on machines with 8byte longs */
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1998-12-21 10:56:39 +00:00
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data[0]=ROTATE(l,3)&0xffffffffL;
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data[1]=ROTATE(r,3)&0xffffffffL;
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1998-12-21 10:52:47 +00:00
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l=r=t=u=0;
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}
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2001-10-24 21:21:12 +00:00
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void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
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DES_key_schedule *ks2, DES_key_schedule *ks3)
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1998-12-21 10:52:47 +00:00
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{
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register DES_LONG l,r;
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l=data[0];
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r=data[1];
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IP(l,r);
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data[0]=l;
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data[1]=r;
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2001-10-24 21:21:12 +00:00
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DES_encrypt2((DES_LONG *)data,ks1,DES_ENCRYPT);
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DES_encrypt2((DES_LONG *)data,ks2,DES_DECRYPT);
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DES_encrypt2((DES_LONG *)data,ks3,DES_ENCRYPT);
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1998-12-21 10:52:47 +00:00
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l=data[0];
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r=data[1];
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FP(r,l);
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data[0]=l;
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data[1]=r;
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}
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2001-10-24 21:21:12 +00:00
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void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
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DES_key_schedule *ks2, DES_key_schedule *ks3)
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1998-12-21 10:52:47 +00:00
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{
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register DES_LONG l,r;
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l=data[0];
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r=data[1];
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IP(l,r);
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data[0]=l;
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data[1]=r;
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2001-10-24 21:21:12 +00:00
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DES_encrypt2((DES_LONG *)data,ks3,DES_DECRYPT);
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DES_encrypt2((DES_LONG *)data,ks2,DES_ENCRYPT);
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DES_encrypt2((DES_LONG *)data,ks1,DES_DECRYPT);
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1998-12-21 10:52:47 +00:00
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l=data[0];
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r=data[1];
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FP(r,l);
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data[0]=l;
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data[1]=r;
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}
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2004-05-11 12:46:24 +00:00
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#endif /* ndef OPENSSL_FIPS */
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1998-12-21 10:56:39 +00:00
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#ifndef DES_DEFAULT_OPTIONS
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2004-05-11 12:46:24 +00:00
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#if !defined(OPENSSL_FIPS) || !defined(I386_ONLY)
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1999-06-09 17:28:30 +00:00
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#undef CBC_ENC_C__DONT_UPDATE_IV
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2001-10-24 21:21:12 +00:00
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#include "ncbc_enc.c" /* DES_ncbc_encrypt */
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1998-12-21 10:56:39 +00:00
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2001-10-24 21:21:12 +00:00
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void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
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long length, DES_key_schedule *ks1,
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DES_key_schedule *ks2, DES_key_schedule *ks3,
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DES_cblock *ivec, int enc)
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1998-12-21 10:56:39 +00:00
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{
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register DES_LONG tin0,tin1;
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register DES_LONG tout0,tout1,xor0,xor1;
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1999-04-17 21:25:43 +00:00
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register const unsigned char *in;
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unsigned char *out;
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1998-12-21 10:56:39 +00:00
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register long l=length;
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DES_LONG tin[2];
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unsigned char *iv;
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1999-04-17 21:25:43 +00:00
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in=input;
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|
|
|
out=output;
|
1999-05-16 12:26:16 +00:00
|
|
|
iv = &(*ivec)[0];
|
1998-12-21 10:56:39 +00:00
|
|
|
|
|
|
|
if (enc)
|
|
|
|
{
|
|
|
|
c2l(iv,tout0);
|
|
|
|
c2l(iv,tout1);
|
|
|
|
for (l-=8; l>=0; l-=8)
|
|
|
|
{
|
|
|
|
c2l(in,tin0);
|
|
|
|
c2l(in,tin1);
|
|
|
|
tin0^=tout0;
|
|
|
|
tin1^=tout1;
|
|
|
|
|
|
|
|
tin[0]=tin0;
|
|
|
|
tin[1]=tin1;
|
2001-10-24 21:21:12 +00:00
|
|
|
DES_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
|
1998-12-21 10:56:39 +00:00
|
|
|
tout0=tin[0];
|
|
|
|
tout1=tin[1];
|
|
|
|
|
|
|
|
l2c(tout0,out);
|
|
|
|
l2c(tout1,out);
|
|
|
|
}
|
|
|
|
if (l != -8)
|
|
|
|
{
|
|
|
|
c2ln(in,tin0,tin1,l+8);
|
|
|
|
tin0^=tout0;
|
|
|
|
tin1^=tout1;
|
|
|
|
|
|
|
|
tin[0]=tin0;
|
|
|
|
tin[1]=tin1;
|
2001-10-24 21:21:12 +00:00
|
|
|
DES_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
|
1998-12-21 10:56:39 +00:00
|
|
|
tout0=tin[0];
|
|
|
|
tout1=tin[1];
|
|
|
|
|
|
|
|
l2c(tout0,out);
|
|
|
|
l2c(tout1,out);
|
|
|
|
}
|
1999-05-16 12:26:16 +00:00
|
|
|
iv = &(*ivec)[0];
|
1998-12-21 10:56:39 +00:00
|
|
|
l2c(tout0,iv);
|
|
|
|
l2c(tout1,iv);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
register DES_LONG t0,t1;
|
|
|
|
|
|
|
|
c2l(iv,xor0);
|
|
|
|
c2l(iv,xor1);
|
|
|
|
for (l-=8; l>=0; l-=8)
|
|
|
|
{
|
|
|
|
c2l(in,tin0);
|
|
|
|
c2l(in,tin1);
|
|
|
|
|
|
|
|
t0=tin0;
|
|
|
|
t1=tin1;
|
|
|
|
|
|
|
|
tin[0]=tin0;
|
|
|
|
tin[1]=tin1;
|
2001-10-24 21:21:12 +00:00
|
|
|
DES_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
|
1998-12-21 10:56:39 +00:00
|
|
|
tout0=tin[0];
|
|
|
|
tout1=tin[1];
|
|
|
|
|
|
|
|
tout0^=xor0;
|
|
|
|
tout1^=xor1;
|
|
|
|
l2c(tout0,out);
|
|
|
|
l2c(tout1,out);
|
|
|
|
xor0=t0;
|
|
|
|
xor1=t1;
|
|
|
|
}
|
|
|
|
if (l != -8)
|
|
|
|
{
|
|
|
|
c2l(in,tin0);
|
|
|
|
c2l(in,tin1);
|
|
|
|
|
|
|
|
t0=tin0;
|
|
|
|
t1=tin1;
|
|
|
|
|
|
|
|
tin[0]=tin0;
|
|
|
|
tin[1]=tin1;
|
2001-10-24 21:21:12 +00:00
|
|
|
DES_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
|
1998-12-21 10:56:39 +00:00
|
|
|
tout0=tin[0];
|
|
|
|
tout1=tin[1];
|
|
|
|
|
|
|
|
tout0^=xor0;
|
|
|
|
tout1^=xor1;
|
|
|
|
l2cn(tout0,tout1,out,l+8);
|
|
|
|
xor0=t0;
|
|
|
|
xor1=t1;
|
|
|
|
}
|
|
|
|
|
1999-05-16 12:26:16 +00:00
|
|
|
iv = &(*ivec)[0];
|
1998-12-21 10:56:39 +00:00
|
|
|
l2c(xor0,iv);
|
|
|
|
l2c(xor1,iv);
|
|
|
|
}
|
|
|
|
tin0=tin1=tout0=tout1=xor0=xor1=0;
|
|
|
|
tin[0]=tin[1]=0;
|
|
|
|
}
|
|
|
|
|
2004-05-11 12:46:24 +00:00
|
|
|
#endif /* !defined(OPENSSL_FIPS) || !defined(I386_ONLY) */
|
|
|
|
|
1998-12-21 10:56:39 +00:00
|
|
|
#endif /* DES_DEFAULT_OPTIONS */
|