[apple/xnu.git] / bsd / crypto / des / des_ecb.c

/*	$FreeBSD: src/sys/crypto/des/des_ecb.c,v 1.1.2.2 2001/07/03 11:01:31 ume Exp $	*/
/*	$KAME: des_ecb.c,v 1.5 2000/11/06 13:58:08 itojun Exp $	*/

/* crypto/des/ecb_enc.c */
/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
 * All rights reserved.
 *
 * This file is part of an SSL implementation written
 * by Eric Young (eay@mincom.oz.au).
 * The implementation was written so as to conform with Netscapes SSL
 * specification.  This library and applications are
 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
 * as long as the following conditions are aheared to.
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.  If this code is used in a product,
 * Eric Young should be given attribution as the author of the parts 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 software developed by Eric Young (eay@mincom.oz.au)
 *
 * 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 <sys/param.h>
#include <sys/systm.h>
#include <crypto/des/des_locl.h>
#include <crypto/des/spr.h>

char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay";
char *DES_version="DES part of SSLeay 0.6.4 30-Aug-1996";

char *des_options()
	{
#ifdef DES_PTR
	if (sizeof(DES_LONG) != sizeof(long))
		return("des(ptr,int)");
	else
		return("des(ptr,long)");
#else
	if (sizeof(DES_LONG) != sizeof(long))
		return("des(idx,int)");
	else
		return("des(idx,long)");
#endif
	}
		

void des_ecb_encrypt(input, output, ks, encrypt)
des_cblock (*input);
des_cblock (*output);
des_key_schedule ks;
int encrypt;
	{
	register DES_LONG l;
	register unsigned char *in,*out;
	DES_LONG ll[2];

	in=(unsigned char *)input;
	out=(unsigned char *)output;
	c2l(in,l); ll[0]=l;
	c2l(in,l); ll[1]=l;
	des_encrypt(ll,ks,encrypt);
	l=ll[0]; l2c(l,out);
	l=ll[1]; l2c(l,out);
	l=ll[0]=ll[1]=0;
	}

void des_encrypt(data, ks, encrypt)
DES_LONG *data;
des_key_schedule ks;
int encrypt;
	{
	register DES_LONG l,r,t,u;
#ifdef DES_PTR
	register unsigned char *des_SP=(unsigned char *)des_SPtrans;
#endif
#ifdef undef
	union fudge {
		DES_LONG  l;
		unsigned short s[2];
		unsigned char  c[4];
		} U,T;
#endif
	register int i;
	register DES_LONG *s;

	u=data[0];
	r=data[1];

	IP(u,r);
	/* 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. */
	l=(r<<1)|(r>>31);
	r=(u<<1)|(u>>31);

	/* clear the top bits on machines with 8byte longs */
	l&=0xffffffffL;
	r&=0xffffffffL;

	s=(DES_LONG *)ks;
	/* I don't know if it is worth the effort of loop unrolling the
	 * inner loop
	 */
	if (encrypt)
		{
		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 */
			}
		}
	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 */
			}
		}
	l=(l>>1)|(l<<31);
	r=(r>>1)|(r<<31);
	/* clear the top bits on machines with 8byte longs */
	l&=0xffffffffL;
	r&=0xffffffffL;

	FP(r,l);
	data[0]=l;
	data[1]=r;
	l=r=t=u=0;
	}

void des_encrypt2(data, ks, encrypt)
DES_LONG *data;
des_key_schedule ks;
int encrypt;
	{
	register DES_LONG l,r,t,u;
#ifdef DES_PTR
	register unsigned char *des_SP=(unsigned char *)des_SPtrans;
#endif
#ifdef undef
	union fudge {
		DES_LONG  l;
		unsigned short s[2];
		unsigned char  c[4];
		} U,T;
#endif
	register int i;
	register DES_LONG *s;

	u=data[0];
	r=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. */
	l=(r<<1)|(r>>31);
	r=(u<<1)|(u>>31);

	/* clear the top bits on machines with 8byte longs */
	l&=0xffffffffL;
	r&=0xffffffffL;

	s=(DES_LONG *)ks;
	/* I don't know if it is worth the effort of loop unrolling the
	 * inner loop */
	if (encrypt)
		{
		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 */
			}
		}
	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 */
			}
		}
	l=(l>>1)|(l<<31);
	r=(r>>1)|(r<<31);
	/* clear the top bits on machines with 8byte longs */
	l&=0xffffffffL;
	r&=0xffffffffL;

	data[0]=l;
	data[1]=r;
	l=r=t=u=0;
	}
Commit	Line	Data
9bccf70c A	1	/* $FreeBSD: src/sys/crypto/des/des_ecb.c,v 1.1.2.2 2001/07/03 11:01:31 ume Exp $ */
	2	/* $KAME: des_ecb.c,v 1.5 2000/11/06 13:58:08 itojun Exp $ */
	3
1c79356b A	4	/* crypto/des/ecb_enc.c */
	5	/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
	6	* All rights reserved.
	7	*
	8	* This file is part of an SSL implementation written
	9	* by Eric Young (eay@mincom.oz.au).
	10	* The implementation was written so as to conform with Netscapes SSL
	11	* specification. This library and applications are
	12	* FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
	13	* as long as the following conditions are aheared to.
	14	*
	15	* Copyright remains Eric Young's, and as such any Copyright notices in
	16	* the code are not to be removed. If this code is used in a product,
	17	* Eric Young should be given attribution as the author of the parts used.
	18	* This can be in the form of a textual message at program startup or
	19	* in documentation (online or textual) provided with the package.
	20	*
	21	* Redistribution and use in source and binary forms, with or without
	22	* modification, are permitted provided that the following conditions
	23	* are met:
	24	* 1. Redistributions of source code must retain the copyright
	25	* notice, this list of conditions and the following disclaimer.
	26	* 2. Redistributions in binary form must reproduce the above copyright
	27	* notice, this list of conditions and the following disclaimer in the
	28	* documentation and/or other materials provided with the distribution.
	29	* 3. All advertising materials mentioning features or use of this software
	30	* must display the following acknowledgement:
	31	* This product includes software developed by Eric Young (eay@mincom.oz.au)
	32	*
	33	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	34	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	35	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	36	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	37	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	38	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	39	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	40	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	41	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	42	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	43	* SUCH DAMAGE.
	44	*
	45	* The licence and distribution terms for any publically available version or
	46	* derivative of this code cannot be changed. i.e. this code cannot simply be
	47	* copied and put under another distribution licence
	48	* [including the GNU Public Licence.]
	49	*/
	50
9bccf70c A	51	#include <sys/param.h>
9bccf70c A	52	#include <sys/systm.h>
1c79356b A	53	#include <crypto/des/des_locl.h>
	54	#include <crypto/des/spr.h>
	55
	56	char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay";
	57	char *DES_version="DES part of SSLeay 0.6.4 30-Aug-1996";
	58
	59	char *des_options()
	60	{
	61	#ifdef DES_PTR
	62	if (sizeof(DES_LONG) != sizeof(long))
	63	return("des(ptr,int)");
	64	else
	65	return("des(ptr,long)");
	66	#else
	67	if (sizeof(DES_LONG) != sizeof(long))
	68	return("des(idx,int)");
	69	else
	70	return("des(idx,long)");
	71	#endif
	72	}
	73
	74
	75	void des_ecb_encrypt(input, output, ks, encrypt)
	76	des_cblock (*input);
	77	des_cblock (*output);
	78	des_key_schedule ks;
	79	int encrypt;
	80	{
	81	register DES_LONG l;
	82	register unsigned char in,out;
	83	DES_LONG ll[2];
	84
	85	in=(unsigned char *)input;
	86	out=(unsigned char *)output;
	87	c2l(in,l); ll[0]=l;
	88	c2l(in,l); ll[1]=l;
	89	des_encrypt(ll,ks,encrypt);
	90	l=ll[0]; l2c(l,out);
	91	l=ll[1]; l2c(l,out);
	92	l=ll[0]=ll[1]=0;
	93	}
	94
	95	void des_encrypt(data, ks, encrypt)
	96	DES_LONG *data;
	97	des_key_schedule ks;
	98	int encrypt;
	99	{
	100	register DES_LONG l,r,t,u;
	101	#ifdef DES_PTR
	102	register unsigned char des_SP=(unsigned char )des_SPtrans;
	103	#endif
	104	#ifdef undef
	105	union fudge {
	106	DES_LONG l;
	107	unsigned short s[2];
	108	unsigned char c[4];
	109	} U,T;
	110	#endif
	111	register int i;
	112	register DES_LONG *s;
	113
	114	u=data[0];
	115	r=data[1];
	116
117	IP(u,r);
118	/* Things have been modified so that the initial rotate is
119	* done outside the loop. This required the
120	* des_SPtrans values in sp.h to be rotated 1 bit to the right.
121	* One perl script later and things have a 5% speed up on a sparc2.
122	* Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
123	* for pointing this out. */
124	l=(r<<1)\|(r>>31);
125	r=(u<<1)\|(u>>31);
126
127	/* clear the top bits on machines with 8byte longs */
128	l&=0xffffffffL;
129	r&=0xffffffffL;
130
131	s=(DES_LONG *)ks;
132	/* I don't know if it is worth the effort of loop unrolling the
133	* inner loop
134	*/
135	if (encrypt)
136	{
137	for (i=0; i<32; i+=8)
138	{
139	D_ENCRYPT(l,r,i+0); /* 1 */
140	D_ENCRYPT(r,l,i+2); /* 2 */
141	D_ENCRYPT(l,r,i+4); /* 3 */
142	D_ENCRYPT(r,l,i+6); /* 4 */
143	}
144	}
145	else
146	{
147	for (i=30; i>0; i-=8)
148	{
149	D_ENCRYPT(l,r,i-0); /* 16 */
150	D_ENCRYPT(r,l,i-2); /* 15 */
151	D_ENCRYPT(l,r,i-4); /* 14 */
152	D_ENCRYPT(r,l,i-6); /* 13 */
153	}
154	}
155	l=(l>>1)\|(l<<31);
156	r=(r>>1)\|(r<<31);
157	/* clear the top bits on machines with 8byte longs */
158	l&=0xffffffffL;
159	r&=0xffffffffL;
160
161	FP(r,l);
162	data[0]=l;
163	data[1]=r;
164	l=r=t=u=0;
165	}
166
167	void des_encrypt2(data, ks, encrypt)
168	DES_LONG *data;
169	des_key_schedule ks;
170	int encrypt;
171	{
172	register DES_LONG l,r,t,u;
173	#ifdef DES_PTR
174	register unsigned char des_SP=(unsigned char )des_SPtrans;
175	#endif
176	#ifdef undef
177	union fudge {
178	DES_LONG l;
179	unsigned short s[2];
180	unsigned char c[4];
181	} U,T;
182	#endif
183	register int i;
184	register DES_LONG *s;
185
186	u=data[0];
187	r=data[1];
188
189	/* Things have been modified so that the initial rotate is
190	* done outside the loop. This required the
191	* des_SPtrans values in sp.h to be rotated 1 bit to the right.
192	* One perl script later and things have a 5% speed up on a sparc2.
193	* Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
194	* for pointing this out. */
195	l=(r<<1)\|(r>>31);
196	r=(u<<1)\|(u>>31);
197
198	/* clear the top bits on machines with 8byte longs */
199	l&=0xffffffffL;
200	r&=0xffffffffL;
201
202	s=(DES_LONG *)ks;
203	/* I don't know if it is worth the effort of loop unrolling the
204	* inner loop */
205	if (encrypt)
206	{
207	for (i=0; i<32; i+=8)
208	{
209	D_ENCRYPT(l,r,i+0); /* 1 */
210	D_ENCRYPT(r,l,i+2); /* 2 */
211	D_ENCRYPT(l,r,i+4); /* 3 */
212	D_ENCRYPT(r,l,i+6); /* 4 */
213	}
214	}
215	else
216	{
217	for (i=30; i>0; i-=8)
218	{
219	D_ENCRYPT(l,r,i-0); /* 16 */
220	D_ENCRYPT(r,l,i-2); /* 15 */
221	D_ENCRYPT(l,r,i-4); /* 14 */
222	D_ENCRYPT(r,l,i-6); /* 13 */
223	}
224	}
225	l=(l>>1)\|(l<<31);
226	r=(r>>1)\|(r<<31);
227	/* clear the top bits on machines with 8byte longs */
228	l&=0xffffffffL;
229	r&=0xffffffffL;
230
231	data[0]=l;
232	data[1]=r;
233	l=r=t=u=0;
234	}