[thirdparty/openssl.git] / crypto / des / des_enc.c

/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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 <openssl/crypto.h>
#include "des_local.h"
#include "spr.h"

void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc)
{
    register DES_LONG l, r, t, u;
    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 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) {
        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 {
        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 */
    }

    /* 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;
    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 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) {
        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 {
        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 */
    }
    /* 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 */
Commit	Line	Data
d2e9e320 RS	1	/*
d2e9e320 RS	2	* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6	3	*
2d48d5dd	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
d2e9e320 RS	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
d02b48c6 RE	8	*/
d02b48c6 RE	9
5180f57c	10	#include <openssl/crypto.h>
706457b7	11	#include "des_local.h"
70532b7d	12	#include "spr.h"
d02b48c6	13
c2e4f17c	14	void DES_encrypt1(DES_LONG data, DES_key_schedule ks, int enc)
0f113f3e MC	15	{
0f113f3e MC	16	register DES_LONG l, r, t, u;
0f113f3e MC	17	register DES_LONG *s;
	18
	19	r = data[0];
	20	l = data[1];
	21
	22	IP(r, l);
	23	/*
	24	* Things have been modified so that the initial rotate is done outside
	25	* the loop. This required the DES_SPtrans values in sp.h to be rotated
	26	* 1 bit to the right. One perl script later and things have a 5% speed
e3713c36	27	* up on a sparc2. Thanks to Richard Outerbridge for pointing this out.
0f113f3e MC	28	*/
	29	/* clear the top bits on machines with 8byte longs */
	30	/* shift left by 2 */
	31	r = ROTATE(r, 29) & 0xffffffffL;
	32	l = ROTATE(l, 29) & 0xffffffffL;
	33
	34	s = ks->ks->deslong;
	35	/*
	36	* I don't know if it is worth the effort of loop unrolling the inner
	37	* loop
	38	*/
	39	if (enc) {
0f113f3e MC	40	D_ENCRYPT(l, r, 0); /* 1 */
	41	D_ENCRYPT(r, l, 2); /* 2 */
	42	D_ENCRYPT(l, r, 4); /* 3 */
	43	D_ENCRYPT(r, l, 6); /* 4 */
	44	D_ENCRYPT(l, r, 8); /* 5 */
	45	D_ENCRYPT(r, l, 10); /* 6 */
	46	D_ENCRYPT(l, r, 12); /* 7 */
	47	D_ENCRYPT(r, l, 14); /* 8 */
	48	D_ENCRYPT(l, r, 16); /* 9 */
	49	D_ENCRYPT(r, l, 18); /* 10 */
	50	D_ENCRYPT(l, r, 20); /* 11 */
	51	D_ENCRYPT(r, l, 22); /* 12 */
	52	D_ENCRYPT(l, r, 24); /* 13 */
	53	D_ENCRYPT(r, l, 26); /* 14 */
	54	D_ENCRYPT(l, r, 28); /* 15 */
	55	D_ENCRYPT(r, l, 30); /* 16 */
0f113f3e	56	} else {
0f113f3e MC	57	D_ENCRYPT(l, r, 30); /* 16 */
	58	D_ENCRYPT(r, l, 28); /* 15 */
	59	D_ENCRYPT(l, r, 26); /* 14 */
	60	D_ENCRYPT(r, l, 24); /* 13 */
	61	D_ENCRYPT(l, r, 22); /* 12 */
	62	D_ENCRYPT(r, l, 20); /* 11 */
	63	D_ENCRYPT(l, r, 18); /* 10 */
	64	D_ENCRYPT(r, l, 16); /* 9 */
	65	D_ENCRYPT(l, r, 14); /* 8 */
	66	D_ENCRYPT(r, l, 12); /* 7 */
	67	D_ENCRYPT(l, r, 10); /* 6 */
	68	D_ENCRYPT(r, l, 8); /* 5 */
	69	D_ENCRYPT(l, r, 6); /* 4 */
	70	D_ENCRYPT(r, l, 4); /* 3 */
	71	D_ENCRYPT(l, r, 2); /* 2 */
	72	D_ENCRYPT(r, l, 0); /* 1 */
0f113f3e	73	}
d02b48c6	74
0f113f3e MC	75	/* rotate and clear the top bits on machines with 8byte longs */
	76	l = ROTATE(l, 3) & 0xffffffffL;
	77	r = ROTATE(r, 3) & 0xffffffffL;
d02b48c6	78
0f113f3e MC	79	FP(r, l);
	80	data[0] = l;
	81	data[1] = r;
	82	l = r = t = u = 0;
	83	}
d02b48c6	84
c2e4f17c	85	void DES_encrypt2(DES_LONG data, DES_key_schedule ks, int enc)
0f113f3e MC	86	{
0f113f3e MC	87	register DES_LONG l, r, t, u;
0f113f3e MC	88	register DES_LONG *s;
	89
	90	r = data[0];
	91	l = data[1];
	92
	93	/*
	94	* Things have been modified so that the initial rotate is done outside
	95	* the loop. This required the DES_SPtrans values in sp.h to be rotated
	96	* 1 bit to the right. One perl script later and things have a 5% speed
e3713c36	97	* up on a sparc2. Thanks to Richard Outerbridge for pointing this out.
0f113f3e MC	98	*/
	99	/* clear the top bits on machines with 8byte longs */
	100	r = ROTATE(r, 29) & 0xffffffffL;
	101	l = ROTATE(l, 29) & 0xffffffffL;
	102
	103	s = ks->ks->deslong;
	104	/*
	105	* I don't know if it is worth the effort of loop unrolling the inner
	106	* loop
	107	*/
	108	if (enc) {
0f113f3e MC	109	D_ENCRYPT(l, r, 0); /* 1 */
	110	D_ENCRYPT(r, l, 2); /* 2 */
	111	D_ENCRYPT(l, r, 4); /* 3 */
	112	D_ENCRYPT(r, l, 6); /* 4 */
	113	D_ENCRYPT(l, r, 8); /* 5 */
	114	D_ENCRYPT(r, l, 10); /* 6 */
	115	D_ENCRYPT(l, r, 12); /* 7 */
	116	D_ENCRYPT(r, l, 14); /* 8 */
	117	D_ENCRYPT(l, r, 16); /* 9 */
	118	D_ENCRYPT(r, l, 18); /* 10 */
	119	D_ENCRYPT(l, r, 20); /* 11 */
	120	D_ENCRYPT(r, l, 22); /* 12 */
	121	D_ENCRYPT(l, r, 24); /* 13 */
	122	D_ENCRYPT(r, l, 26); /* 14 */
	123	D_ENCRYPT(l, r, 28); /* 15 */
	124	D_ENCRYPT(r, l, 30); /* 16 */
0f113f3e	125	} else {
0f113f3e MC	126	D_ENCRYPT(l, r, 30); /* 16 */
	127	D_ENCRYPT(r, l, 28); /* 15 */
	128	D_ENCRYPT(l, r, 26); /* 14 */
	129	D_ENCRYPT(r, l, 24); /* 13 */
	130	D_ENCRYPT(l, r, 22); /* 12 */
	131	D_ENCRYPT(r, l, 20); /* 11 */
	132	D_ENCRYPT(l, r, 18); /* 10 */
	133	D_ENCRYPT(r, l, 16); /* 9 */
	134	D_ENCRYPT(l, r, 14); /* 8 */
	135	D_ENCRYPT(r, l, 12); /* 7 */
	136	D_ENCRYPT(l, r, 10); /* 6 */
	137	D_ENCRYPT(r, l, 8); /* 5 */
	138	D_ENCRYPT(l, r, 6); /* 4 */
	139	D_ENCRYPT(r, l, 4); /* 3 */
	140	D_ENCRYPT(l, r, 2); /* 2 */
	141	D_ENCRYPT(r, l, 0); /* 1 */
0f113f3e MC	142	}
	143	/* rotate and clear the top bits on machines with 8byte longs */
	144	data[0] = ROTATE(l, 3) & 0xffffffffL;
	145	data[1] = ROTATE(r, 3) & 0xffffffffL;
	146	l = r = t = u = 0;
	147	}
d02b48c6	148
c2e4f17c	149	void DES_encrypt3(DES_LONG data, DES_key_schedule ks1,
0f113f3e MC	150	DES_key_schedule ks2, DES_key_schedule ks3)
	151	{
	152	register DES_LONG l, r;
	153
	154	l = data[0];
	155	r = data[1];
	156	IP(l, r);
	157	data[0] = l;
	158	data[1] = r;
	159	DES_encrypt2((DES_LONG *)data, ks1, DES_ENCRYPT);
	160	DES_encrypt2((DES_LONG *)data, ks2, DES_DECRYPT);
	161	DES_encrypt2((DES_LONG *)data, ks3, DES_ENCRYPT);
	162	l = data[0];
	163	r = data[1];
	164	FP(r, l);
	165	data[0] = l;
	166	data[1] = r;
	167	}
d02b48c6	168
c2e4f17c	169	void DES_decrypt3(DES_LONG data, DES_key_schedule ks1,
0f113f3e MC	170	DES_key_schedule ks2, DES_key_schedule ks3)
	171	{
	172	register DES_LONG l, r;
	173
	174	l = data[0];
	175	r = data[1];
	176	IP(l, r);
	177	data[0] = l;
	178	data[1] = r;
	179	DES_encrypt2((DES_LONG *)data, ks3, DES_DECRYPT);
	180	DES_encrypt2((DES_LONG *)data, ks2, DES_ENCRYPT);
	181	DES_encrypt2((DES_LONG *)data, ks1, DES_DECRYPT);
	182	l = data[0];
	183	r = data[1];
	184	FP(r, l);
	185	data[0] = l;
	186	data[1] = r;
	187	}
d02b48c6	188
58964a49 RE	189	#ifndef DES_DEFAULT_OPTIONS
58964a49 RE	190
0f113f3e MC	191	# undef CBC_ENC_C__DONT_UPDATE_IV
0f113f3e MC	192	# include "ncbc_enc.c" /* DES_ncbc_encrypt */
58964a49	193
c2e4f17c	194	void DES_ede3_cbc_encrypt(const unsigned char input, unsigned char output,
0f113f3e MC	195	long length, DES_key_schedule *ks1,
	196	DES_key_schedule ks2, DES_key_schedule ks3,
	197	DES_cblock *ivec, int enc)
	198	{
	199	register DES_LONG tin0, tin1;
	200	register DES_LONG tout0, tout1, xor0, xor1;
	201	register const unsigned char *in;
	202	unsigned char *out;
	203	register long l = length;
	204	DES_LONG tin[2];
	205	unsigned char *iv;
	206
	207	in = input;
	208	out = output;
	209	iv = &(*ivec)[0];
	210
	211	if (enc) {
	212	c2l(iv, tout0);
	213	c2l(iv, tout1);
	214	for (l -= 8; l >= 0; l -= 8) {
	215	c2l(in, tin0);
	216	c2l(in, tin1);
	217	tin0 ^= tout0;
	218	tin1 ^= tout1;
	219
	220	tin[0] = tin0;
	221	tin[1] = tin1;
	222	DES_encrypt3((DES_LONG *)tin, ks1, ks2, ks3);
	223	tout0 = tin[0];
	224	tout1 = tin[1];
	225
	226	l2c(tout0, out);
	227	l2c(tout1, out);
	228	}
	229	if (l != -8) {
	230	c2ln(in, tin0, tin1, l + 8);
	231	tin0 ^= tout0;
	232	tin1 ^= tout1;
	233
	234	tin[0] = tin0;
	235	tin[1] = tin1;
	236	DES_encrypt3((DES_LONG *)tin, ks1, ks2, ks3);
	237	tout0 = tin[0];
	238	tout1 = tin[1];
	239
	240	l2c(tout0, out);
	241	l2c(tout1, out);
	242	}
	243	iv = &(*ivec)[0];
	244	l2c(tout0, iv);
	245	l2c(tout1, iv);
	246	} else {
	247	register DES_LONG t0, t1;
	248
	249	c2l(iv, xor0);
	250	c2l(iv, xor1);
	251	for (l -= 8; l >= 0; l -= 8) {
	252	c2l(in, tin0);
	253	c2l(in, tin1);
	254
	255	t0 = tin0;
	256	t1 = tin1;
	257
	258	tin[0] = tin0;
259	tin[1] = tin1;
260	DES_decrypt3((DES_LONG *)tin, ks1, ks2, ks3);
261	tout0 = tin[0];
262	tout1 = tin[1];
263
264	tout0 ^= xor0;
265	tout1 ^= xor1;
266	l2c(tout0, out);
267	l2c(tout1, out);
268	xor0 = t0;
269	xor1 = t1;
270	}
271	if (l != -8) {
272	c2l(in, tin0);
273	c2l(in, tin1);
274
275	t0 = tin0;
276	t1 = tin1;
277
278	tin[0] = tin0;
279	tin[1] = tin1;
280	DES_decrypt3((DES_LONG *)tin, ks1, ks2, ks3);
281	tout0 = tin[0];
282	tout1 = tin[1];
283
284	tout0 ^= xor0;
285	tout1 ^= xor1;
286	l2cn(tout0, tout1, out, l + 8);
287	xor0 = t0;
288	xor1 = t1;
289	}
290
291	iv = &(*ivec)[0];
292	l2c(xor0, iv);
293	l2c(xor1, iv);
294	}
295	tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
296	tin[0] = tin[1] = 0;
297	}
298
299	#endif /* DES_DEFAULT_OPTIONS */