/* 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"#ifndef OPENSSL_FIPSvoid 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+=8)			{			D_ENCRYPT(l,r,i+0); /*  1 */			D_ENCRYPT(r,l,i+2); /*  2 */			D_ENCRYPT(l,r,i+4); /*  3 */			D_ENCRYPT(r,l,i+6); /*  4 */			}#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-=8)			{			D_ENCRYPT(l,r,i-0); /* 16 */			D_ENCRYPT(r,l,i-2); /* 15 */			D_ENCRYPT(l,r,i-4); /* 14 */			D_ENCRYPT(r,l,i-6); /* 13 */			}#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+=8)			{			D_ENCRYPT(l,r,i+0); /*  1 */			D_ENCRYPT(r,l,i+2); /*  2 */			D_ENCRYPT(l,r,i+4); /*  3 */			D_ENCRYPT(r,l,i+6); /*  4 */			}#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-=8)			{			D_ENCRYPT(l,r,i-0); /* 16 */			D_ENCRYPT(r,l,i-2); /* 15 */			D_ENCRYPT(l,r,i-4); /* 14 */			D_ENCRYPT(r,l,i-6); /* 13 */			}#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;	}#endif /* ndef OPENSSL_FIPS */#ifndef DES_DEFAULT_OPTIONS#if !defined(OPENSSL_FIPS_DES_ASM)#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 /* !defined(OPENSSL_FIPS_DES_ASM) */#endif /* DES_DEFAULT_OPTIONS */