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-rw-r--r--openssl/crypto/des/des_enc.c400
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diff --git a/openssl/crypto/des/des_enc.c b/openssl/crypto/des/des_enc.c
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-/* crypto/des/des_enc.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * 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.]
- */
-
-#include "des_locl.h"
-#include "spr.h"
-
-void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc)
- {
- register DES_LONG l,r,t,u;
-#ifdef DES_PTR
- register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
-#endif
-#ifndef DES_UNROLL
- register int i;
-#endif
- register DES_LONG *s;
-
- r=data[0];
- l=data[1];
-
- IP(r,l);
- /* Things have been modified so that the initial rotate is
- * done outside the loop. This required the
- * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
- * One perl script later and things have a 5% speed up on a sparc2.
- * Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
- * for pointing this out. */
- /* clear the top bits on machines with 8byte longs */
- /* shift left by 2 */
- r=ROTATE(r,29)&0xffffffffL;
- l=ROTATE(l,29)&0xffffffffL;
-
- s=ks->ks->deslong;
- /* I don't know if it is worth the effort of loop unrolling the
- * inner loop */
- if (enc)
- {
-#ifdef DES_UNROLL
- D_ENCRYPT(l,r, 0); /* 1 */
- D_ENCRYPT(r,l, 2); /* 2 */
- D_ENCRYPT(l,r, 4); /* 3 */
- D_ENCRYPT(r,l, 6); /* 4 */
- D_ENCRYPT(l,r, 8); /* 5 */
- D_ENCRYPT(r,l,10); /* 6 */
- D_ENCRYPT(l,r,12); /* 7 */
- D_ENCRYPT(r,l,14); /* 8 */
- D_ENCRYPT(l,r,16); /* 9 */
- D_ENCRYPT(r,l,18); /* 10 */
- D_ENCRYPT(l,r,20); /* 11 */
- D_ENCRYPT(r,l,22); /* 12 */
- D_ENCRYPT(l,r,24); /* 13 */
- D_ENCRYPT(r,l,26); /* 14 */
- D_ENCRYPT(l,r,28); /* 15 */
- D_ENCRYPT(r,l,30); /* 16 */
-#else
- for (i=0; i<32; i+=4)
- {
- D_ENCRYPT(l,r,i+0); /* 1 */
- D_ENCRYPT(r,l,i+2); /* 2 */
- }
-#endif
- }
- else
- {
-#ifdef DES_UNROLL
- D_ENCRYPT(l,r,30); /* 16 */
- D_ENCRYPT(r,l,28); /* 15 */
- D_ENCRYPT(l,r,26); /* 14 */
- D_ENCRYPT(r,l,24); /* 13 */
- D_ENCRYPT(l,r,22); /* 12 */
- D_ENCRYPT(r,l,20); /* 11 */
- D_ENCRYPT(l,r,18); /* 10 */
- D_ENCRYPT(r,l,16); /* 9 */
- D_ENCRYPT(l,r,14); /* 8 */
- D_ENCRYPT(r,l,12); /* 7 */
- D_ENCRYPT(l,r,10); /* 6 */
- D_ENCRYPT(r,l, 8); /* 5 */
- D_ENCRYPT(l,r, 6); /* 4 */
- D_ENCRYPT(r,l, 4); /* 3 */
- D_ENCRYPT(l,r, 2); /* 2 */
- D_ENCRYPT(r,l, 0); /* 1 */
-#else
- for (i=30; i>0; i-=4)
- {
- D_ENCRYPT(l,r,i-0); /* 16 */
- D_ENCRYPT(r,l,i-2); /* 15 */
- }
-#endif
- }
-
- /* rotate and clear the top bits on machines with 8byte longs */
- l=ROTATE(l,3)&0xffffffffL;
- r=ROTATE(r,3)&0xffffffffL;
-
- FP(r,l);
- data[0]=l;
- data[1]=r;
- l=r=t=u=0;
- }
-
-void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc)
- {
- register DES_LONG l,r,t,u;
-#ifdef DES_PTR
- register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
-#endif
-#ifndef DES_UNROLL
- register int i;
-#endif
- register DES_LONG *s;
-
- r=data[0];
- l=data[1];
-
- /* Things have been modified so that the initial rotate is
- * done outside the loop. This required the
- * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
- * One perl script later and things have a 5% speed up on a sparc2.
- * Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
- * for pointing this out. */
- /* clear the top bits on machines with 8byte longs */
- r=ROTATE(r,29)&0xffffffffL;
- l=ROTATE(l,29)&0xffffffffL;
-
- s=ks->ks->deslong;
- /* I don't know if it is worth the effort of loop unrolling the
- * inner loop */
- if (enc)
- {
-#ifdef DES_UNROLL
- D_ENCRYPT(l,r, 0); /* 1 */
- D_ENCRYPT(r,l, 2); /* 2 */
- D_ENCRYPT(l,r, 4); /* 3 */
- D_ENCRYPT(r,l, 6); /* 4 */
- D_ENCRYPT(l,r, 8); /* 5 */
- D_ENCRYPT(r,l,10); /* 6 */
- D_ENCRYPT(l,r,12); /* 7 */
- D_ENCRYPT(r,l,14); /* 8 */
- D_ENCRYPT(l,r,16); /* 9 */
- D_ENCRYPT(r,l,18); /* 10 */
- D_ENCRYPT(l,r,20); /* 11 */
- D_ENCRYPT(r,l,22); /* 12 */
- D_ENCRYPT(l,r,24); /* 13 */
- D_ENCRYPT(r,l,26); /* 14 */
- D_ENCRYPT(l,r,28); /* 15 */
- D_ENCRYPT(r,l,30); /* 16 */
-#else
- for (i=0; i<32; i+=4)
- {
- D_ENCRYPT(l,r,i+0); /* 1 */
- D_ENCRYPT(r,l,i+2); /* 2 */
- }
-#endif
- }
- else
- {
-#ifdef DES_UNROLL
- D_ENCRYPT(l,r,30); /* 16 */
- D_ENCRYPT(r,l,28); /* 15 */
- D_ENCRYPT(l,r,26); /* 14 */
- D_ENCRYPT(r,l,24); /* 13 */
- D_ENCRYPT(l,r,22); /* 12 */
- D_ENCRYPT(r,l,20); /* 11 */
- D_ENCRYPT(l,r,18); /* 10 */
- D_ENCRYPT(r,l,16); /* 9 */
- D_ENCRYPT(l,r,14); /* 8 */
- D_ENCRYPT(r,l,12); /* 7 */
- D_ENCRYPT(l,r,10); /* 6 */
- D_ENCRYPT(r,l, 8); /* 5 */
- D_ENCRYPT(l,r, 6); /* 4 */
- D_ENCRYPT(r,l, 4); /* 3 */
- D_ENCRYPT(l,r, 2); /* 2 */
- D_ENCRYPT(r,l, 0); /* 1 */
-#else
- for (i=30; i>0; i-=4)
- {
- D_ENCRYPT(l,r,i-0); /* 16 */
- D_ENCRYPT(r,l,i-2); /* 15 */
- }
-#endif
- }
- /* rotate and clear the top bits on machines with 8byte longs */
- data[0]=ROTATE(l,3)&0xffffffffL;
- data[1]=ROTATE(r,3)&0xffffffffL;
- l=r=t=u=0;
- }
-
-void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
- DES_key_schedule *ks2, DES_key_schedule *ks3)
- {
- register DES_LONG l,r;
-
- l=data[0];
- r=data[1];
- IP(l,r);
- data[0]=l;
- data[1]=r;
- DES_encrypt2((DES_LONG *)data,ks1,DES_ENCRYPT);
- DES_encrypt2((DES_LONG *)data,ks2,DES_DECRYPT);
- DES_encrypt2((DES_LONG *)data,ks3,DES_ENCRYPT);
- l=data[0];
- r=data[1];
- FP(r,l);
- data[0]=l;
- data[1]=r;
- }
-
-void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
- DES_key_schedule *ks2, DES_key_schedule *ks3)
- {
- register DES_LONG l,r;
-
- l=data[0];
- r=data[1];
- IP(l,r);
- data[0]=l;
- data[1]=r;
- DES_encrypt2((DES_LONG *)data,ks3,DES_DECRYPT);
- DES_encrypt2((DES_LONG *)data,ks2,DES_ENCRYPT);
- DES_encrypt2((DES_LONG *)data,ks1,DES_DECRYPT);
- l=data[0];
- r=data[1];
- FP(r,l);
- data[0]=l;
- data[1]=r;
- }
-
-#ifndef DES_DEFAULT_OPTIONS
-
-#undef CBC_ENC_C__DONT_UPDATE_IV
-#include "ncbc_enc.c" /* DES_ncbc_encrypt */
-
-void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
- long length, DES_key_schedule *ks1,
- DES_key_schedule *ks2, DES_key_schedule *ks3,
- DES_cblock *ivec, int enc)
- {
- register DES_LONG tin0,tin1;
- register DES_LONG tout0,tout1,xor0,xor1;
- register const unsigned char *in;
- unsigned char *out;
- register long l=length;
- DES_LONG tin[2];
- unsigned char *iv;
-
- in=input;
- out=output;
- iv = &(*ivec)[0];
-
- 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;
- DES_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
- 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;
- DES_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
- tout0=tin[0];
- tout1=tin[1];
-
- l2c(tout0,out);
- l2c(tout1,out);
- }
- iv = &(*ivec)[0];
- 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;
- DES_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
- 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;
- DES_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
- tout0=tin[0];
- tout1=tin[1];
-
- tout0^=xor0;
- tout1^=xor1;
- l2cn(tout0,tout1,out,l+8);
- xor0=t0;
- xor1=t1;
- }
-
- iv = &(*ivec)[0];
- l2c(xor0,iv);
- l2c(xor1,iv);
- }
- tin0=tin1=tout0=tout1=xor0=xor1=0;
- tin[0]=tin[1]=0;
- }
-
-#endif /* DES_DEFAULT_OPTIONS */
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