/src/openssl/crypto/des/des_enc.c

Source (jump to first uncovered line)
/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (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_locl.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 */

Coverage Report

Created: 2018-08-29 13:53

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