xref: /illumos-gate/usr/src/common/crypto/des/des_impl.c (revision b6805bf78d2bbbeeaea8909a05623587b42d58b3) 
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <sys/types.h>
27 #include <sys/systm.h>
28 #include <sys/ddi.h>
29 #include <sys/sysmacros.h>
30 #include <sys/strsun.h>
31 #include <sys/crypto/spi.h>
32 #include <modes/modes.h>
33 #include <sys/crypto/common.h>
34 #include "des_impl.h"
35 #ifndef	_KERNEL
36 #include <strings.h>
37 #include <stdlib.h>
38 #endif	/* !_KERNEL */
39 
40 #if defined(__i386) || defined(__amd64)
41 #include <sys/byteorder.h>
42 #define	UNALIGNED_POINTERS_PERMITTED
43 #endif
44 
45 typedef struct keysched_s {
46 	uint64_t ksch_encrypt[16];
47 	uint64_t ksch_decrypt[16];
48 } keysched_t;
49 
50 typedef struct keysched3_s {
51 	uint64_t ksch_encrypt[48];
52 	uint64_t ksch_decrypt[48];
53 } keysched3_t;
54 
55 static void fix_des_parity(uint64_t *);
56 
57 #ifndef sun4u
58 
59 static const uint64_t sbox_table[8][64]=
60 {
61 /* BEGIN CSTYLED */
62 {
63 0x0000140140020000ULL, 0x0000000000000000ULL, 0x0000000140000000ULL, 0x0000140140020020ULL,
64 0x0000140140000020ULL, 0x0000000140020020ULL, 0x0000000000000020ULL, 0x0000000140000000ULL,
65 0x0000000000020000ULL, 0x0000140140020000ULL, 0x0000140140020020ULL, 0x0000000000020000ULL,
66 0x0000140000020020ULL, 0x0000140140000020ULL, 0x0000140000000000ULL, 0x0000000000000020ULL,
67 0x0000000000020020ULL, 0x0000140000020000ULL, 0x0000140000020000ULL, 0x0000000140020000ULL,
68 0x0000000140020000ULL, 0x0000140140000000ULL, 0x0000140140000000ULL, 0x0000140000020020ULL,
69 0x0000000140000020ULL, 0x0000140000000020ULL, 0x0000140000000020ULL, 0x0000000140000020ULL,
70 0x0000000000000000ULL, 0x0000000000020020ULL, 0x0000000140020020ULL, 0x0000140000000000ULL,
71 0x0000000140000000ULL, 0x0000140140020020ULL, 0x0000000000000020ULL, 0x0000140140000000ULL,
72 0x0000140140020000ULL, 0x0000140000000000ULL, 0x0000140000000000ULL, 0x0000000000020000ULL,
73 0x0000140140000020ULL, 0x0000000140000000ULL, 0x0000000140020000ULL, 0x0000140000000020ULL,
74 0x0000000000020000ULL, 0x0000000000000020ULL, 0x0000140000020020ULL, 0x0000000140020020ULL,
75 0x0000140140020020ULL, 0x0000000140000020ULL, 0x0000140140000000ULL, 0x0000140000020020ULL,
76 0x0000140000000020ULL, 0x0000000000020020ULL, 0x0000000140020020ULL, 0x0000140140020000ULL,
77 0x0000000000020020ULL, 0x0000140000020000ULL, 0x0000140000020000ULL, 0x0000000000000000ULL,
78 0x0000000140000020ULL, 0x0000000140020000ULL, 0x0000000000000000ULL, 0x0000140140000020ULL
79 },
80 {
81 0x2000005020000500ULL, 0x2000000020000000ULL, 0x0000000020000000ULL, 0x0000005020000500ULL,
82 0x0000005000000000ULL, 0x0000000000000500ULL, 0x2000005000000500ULL, 0x2000000020000500ULL,
83 0x2000000000000500ULL, 0x2000005020000500ULL, 0x2000005020000000ULL, 0x2000000000000000ULL,
84 0x2000000020000000ULL, 0x0000005000000000ULL, 0x0000000000000500ULL, 0x2000005000000500ULL,
85 0x0000005020000000ULL, 0x0000005000000500ULL, 0x2000000020000500ULL, 0x0000000000000000ULL,
86 0x2000000000000000ULL, 0x0000000020000000ULL, 0x0000005020000500ULL, 0x2000005000000000ULL,
87 0x0000005000000500ULL, 0x2000000000000500ULL, 0x0000000000000000ULL, 0x0000005020000000ULL,
88 0x0000000020000500ULL, 0x2000005020000000ULL, 0x2000005000000000ULL, 0x0000000020000500ULL,
89 0x0000000000000000ULL, 0x0000005020000500ULL, 0x2000005000000500ULL, 0x0000005000000000ULL,
90 0x2000000020000500ULL, 0x2000005000000000ULL, 0x2000005020000000ULL, 0x0000000020000000ULL,
91 0x2000005000000000ULL, 0x2000000020000000ULL, 0x0000000000000500ULL, 0x2000005020000500ULL,
92 0x0000005020000500ULL, 0x0000000000000500ULL, 0x0000000020000000ULL, 0x2000000000000000ULL,
93 0x0000000020000500ULL, 0x2000005020000000ULL, 0x0000005000000000ULL, 0x2000000000000500ULL,
94 0x0000005000000500ULL, 0x2000000020000500ULL, 0x2000000000000500ULL, 0x0000005000000500ULL,
95 0x0000005020000000ULL, 0x0000000000000000ULL, 0x2000000020000000ULL, 0x0000000020000500ULL,
96 0x2000000000000000ULL, 0x2000005000000500ULL, 0x2000005020000500ULL, 0x0000005020000000ULL
97 },
98 {
99 0x0000000000014040ULL, 0x0000800280014000ULL, 0x0000000000000000ULL, 0x0000800280000040ULL,
100 0x0000800000014000ULL, 0x0000000000000000ULL, 0x0000000280014040ULL, 0x0000800000014000ULL,
101 0x0000000280000040ULL, 0x0000800000000040ULL, 0x0000800000000040ULL, 0x0000000280000000ULL,
102 0x0000800280014040ULL, 0x0000000280000040ULL, 0x0000800280000000ULL, 0x0000000000014040ULL,
103 0x0000800000000000ULL, 0x0000000000000040ULL, 0x0000800280014000ULL, 0x0000000000014000ULL,
104 0x0000000280014000ULL, 0x0000800280000000ULL, 0x0000800280000040ULL, 0x0000000280014040ULL,
105 0x0000800000014040ULL, 0x0000000280014000ULL, 0x0000000280000000ULL, 0x0000800000014040ULL,
106 0x0000000000000040ULL, 0x0000800280014040ULL, 0x0000000000014000ULL, 0x0000800000000000ULL,
107 0x0000800280014000ULL, 0x0000800000000000ULL, 0x0000000280000040ULL, 0x0000000000014040ULL,
108 0x0000000280000000ULL, 0x0000800280014000ULL, 0x0000800000014000ULL, 0x0000000000000000ULL,
109 0x0000000000014000ULL, 0x0000000280000040ULL, 0x0000800280014040ULL, 0x0000800000014000ULL,
110 0x0000800000000040ULL, 0x0000000000014000ULL, 0x0000000000000000ULL, 0x0000800280000040ULL,
111 0x0000800000014040ULL, 0x0000000280000000ULL, 0x0000800000000000ULL, 0x0000800280014040ULL,
112 0x0000000000000040ULL, 0x0000000280014040ULL, 0x0000000280014000ULL, 0x0000800000000040ULL,
113 0x0000800280000000ULL, 0x0000800000014040ULL, 0x0000000000014040ULL, 0x0000800280000000ULL,
114 0x0000000280014040ULL, 0x0000000000000040ULL, 0x0000800280000040ULL, 0x0000000280014000ULL
115 },
116 {
117 0x4000020008100008ULL, 0x4000000008101008ULL, 0x4000000008101008ULL, 0x0000000000001000ULL,
118 0x0000020008101000ULL, 0x4000020000001008ULL, 0x4000020000000008ULL, 0x4000000008100008ULL,
119 0x0000000000000000ULL, 0x0000020008100000ULL, 0x0000020008100000ULL, 0x4000020008101008ULL,
120 0x4000000000001008ULL, 0x0000000000000000ULL, 0x0000020000001000ULL, 0x4000020000000008ULL,
121 0x4000000000000008ULL, 0x0000000008100000ULL, 0x0000020000000000ULL, 0x4000020008100008ULL,
122 0x0000000000001000ULL, 0x0000020000000000ULL, 0x4000000008100008ULL, 0x0000000008101000ULL,
123 0x4000020000001008ULL, 0x4000000000000008ULL, 0x0000000008101000ULL, 0x0000020000001000ULL,
124 0x0000000008100000ULL, 0x0000020008101000ULL, 0x4000020008101008ULL, 0x4000000000001008ULL,
125 0x0000020000001000ULL, 0x4000020000000008ULL, 0x0000020008100000ULL, 0x4000020008101008ULL,
126 0x4000000000001008ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, 0x0000020008100000ULL,
127 0x0000000008101000ULL, 0x0000020000001000ULL, 0x4000020000001008ULL, 0x4000000000000008ULL,
128 0x4000020008100008ULL, 0x4000000008101008ULL, 0x4000000008101008ULL, 0x0000000000001000ULL,
129 0x4000020008101008ULL, 0x4000000000001008ULL, 0x4000000000000008ULL, 0x0000000008100000ULL,
130 0x4000020000000008ULL, 0x4000000008100008ULL, 0x0000020008101000ULL, 0x4000020000001008ULL,
131 0x4000000008100008ULL, 0x0000000008101000ULL, 0x0000020000000000ULL, 0x4000020008100008ULL,
132 0x0000000000001000ULL, 0x0000020000000000ULL, 0x0000000008100000ULL, 0x0000020008101000ULL
133 },
134 {
135 0x000000000000a000ULL, 0x000028080000a000ULL, 0x0000280800000000ULL, 0x100028000000a000ULL,
136 0x0000000800000000ULL, 0x000000000000a000ULL, 0x1000000000000000ULL, 0x0000280800000000ULL,
137 0x100000080000a000ULL, 0x0000000800000000ULL, 0x000028000000a000ULL, 0x100000080000a000ULL,
138 0x100028000000a000ULL, 0x1000280800000000ULL, 0x000000080000a000ULL, 0x1000000000000000ULL,
139 0x0000280000000000ULL, 0x1000000800000000ULL, 0x1000000800000000ULL, 0x0000000000000000ULL,
140 0x100000000000a000ULL, 0x100028080000a000ULL, 0x100028080000a000ULL, 0x000028000000a000ULL,
141 0x1000280800000000ULL, 0x100000000000a000ULL, 0x0000000000000000ULL, 0x1000280000000000ULL,
142 0x000028080000a000ULL, 0x0000280000000000ULL, 0x1000280000000000ULL, 0x000000080000a000ULL,
143 0x0000000800000000ULL, 0x100028000000a000ULL, 0x000000000000a000ULL, 0x0000280000000000ULL,
144 0x1000000000000000ULL, 0x0000280800000000ULL, 0x100028000000a000ULL, 0x100000080000a000ULL,
145 0x000028000000a000ULL, 0x1000000000000000ULL, 0x1000280800000000ULL, 0x000028080000a000ULL,
146 0x100000080000a000ULL, 0x000000000000a000ULL, 0x0000280000000000ULL, 0x1000280800000000ULL,
147 0x100028080000a000ULL, 0x000000080000a000ULL, 0x1000280000000000ULL, 0x100028080000a000ULL,
148 0x0000280800000000ULL, 0x0000000000000000ULL, 0x1000000800000000ULL, 0x1000280000000000ULL,
149 0x000000080000a000ULL, 0x000028000000a000ULL, 0x100000000000a000ULL, 0x0000000800000000ULL,
150 0x0000000000000000ULL, 0x1000000800000000ULL, 0x000028080000a000ULL, 0x100000000000a000ULL
151 },
152 {
153 0x0802000000000280ULL, 0x0802010000000000ULL, 0x0000000010000000ULL, 0x0802010010000280ULL,
154 0x0802010000000000ULL, 0x0000000000000280ULL, 0x0802010010000280ULL, 0x0000010000000000ULL,
155 0x0802000010000000ULL, 0x0000010010000280ULL, 0x0000010000000000ULL, 0x0802000000000280ULL,
156 0x0000010000000280ULL, 0x0802000010000000ULL, 0x0802000000000000ULL, 0x0000000010000280ULL,
157 0x0000000000000000ULL, 0x0000010000000280ULL, 0x0802000010000280ULL, 0x0000000010000000ULL,
158 0x0000010010000000ULL, 0x0802000010000280ULL, 0x0000000000000280ULL, 0x0802010000000280ULL,
159 0x0802010000000280ULL, 0x0000000000000000ULL, 0x0000010010000280ULL, 0x0802010010000000ULL,
160 0x0000000010000280ULL, 0x0000010010000000ULL, 0x0802010010000000ULL, 0x0802000000000000ULL,
161 0x0802000010000000ULL, 0x0000000000000280ULL, 0x0802010000000280ULL, 0x0000010010000000ULL,
162 0x0802010010000280ULL, 0x0000010000000000ULL, 0x0000000010000280ULL, 0x0802000000000280ULL,
163 0x0000010000000000ULL, 0x0802000010000000ULL, 0x0802000000000000ULL, 0x0000000010000280ULL,
164 0x0802000000000280ULL, 0x0802010010000280ULL, 0x0000010010000000ULL, 0x0802010000000000ULL,
165 0x0000010010000280ULL, 0x0802010010000000ULL, 0x0000000000000000ULL, 0x0802010000000280ULL,
166 0x0000000000000280ULL, 0x0000000010000000ULL, 0x0802010000000000ULL, 0x0000010010000280ULL,
167 0x0000000010000000ULL, 0x0000010000000280ULL, 0x0802000010000280ULL, 0x0000000000000000ULL,
168 0x0802010010000000ULL, 0x0802000000000000ULL, 0x0000010000000280ULL, 0x0802000010000280ULL
169 },
170 {
171 0x000000a000000000ULL, 0x800040a000000010ULL, 0x8000400000040010ULL, 0x0000000000000000ULL,
172 0x0000000000040000ULL, 0x8000400000040010ULL, 0x800000a000040010ULL, 0x000040a000040000ULL,
173 0x800040a000040010ULL, 0x000000a000000000ULL, 0x0000000000000000ULL, 0x8000400000000010ULL,
174 0x8000000000000010ULL, 0x0000400000000000ULL, 0x800040a000000010ULL, 0x8000000000040010ULL,
175 0x0000400000040000ULL, 0x800000a000040010ULL, 0x800000a000000010ULL, 0x0000400000040000ULL,
176 0x8000400000000010ULL, 0x000040a000000000ULL, 0x000040a000040000ULL, 0x800000a000000010ULL,
177 0x000040a000000000ULL, 0x0000000000040000ULL, 0x8000000000040010ULL, 0x800040a000040010ULL,
178 0x000000a000040000ULL, 0x8000000000000010ULL, 0x0000400000000000ULL, 0x000000a000040000ULL,
179 0x0000400000000000ULL, 0x000000a000040000ULL, 0x000000a000000000ULL, 0x8000400000040010ULL,
180 0x8000400000040010ULL, 0x800040a000000010ULL, 0x800040a000000010ULL, 0x8000000000000010ULL,
181 0x800000a000000010ULL, 0x0000400000000000ULL, 0x0000400000040000ULL, 0x000000a000000000ULL,
182 0x000040a000040000ULL, 0x8000000000040010ULL, 0x800000a000040010ULL, 0x000040a000040000ULL,
183 0x8000000000040010ULL, 0x8000400000000010ULL, 0x800040a000040010ULL, 0x000040a000000000ULL,
184 0x000000a000040000ULL, 0x0000000000000000ULL, 0x8000000000000010ULL, 0x800040a000040010ULL,
185 0x0000000000000000ULL, 0x800000a000040010ULL, 0x000040a000000000ULL, 0x0000000000040000ULL,
186 0x8000400000000010ULL, 0x0000400000040000ULL, 0x0000000000040000ULL, 0x800000a000000010ULL
187 },
188 {
189 0x0401000004080800ULL, 0x0000000004080000ULL, 0x0000000400000000ULL, 0x0401000404080800ULL,
190 0x0401000000000000ULL, 0x0401000004080800ULL, 0x0000000000000800ULL, 0x0401000000000000ULL,
191 0x0000000400000800ULL, 0x0401000400000000ULL, 0x0401000404080800ULL, 0x0000000404080000ULL,
192 0x0401000404080000ULL, 0x0000000404080800ULL, 0x0000000004080000ULL, 0x0000000000000800ULL,
193 0x0401000400000000ULL, 0x0401000000000800ULL, 0x0401000004080000ULL, 0x0000000004080800ULL,
194 0x0000000404080000ULL, 0x0000000400000800ULL, 0x0401000400000800ULL, 0x0401000404080000ULL,
195 0x0000000004080800ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, 0x0401000400000800ULL,
196 0x0401000000000800ULL, 0x0401000004080000ULL, 0x0000000404080800ULL, 0x0000000400000000ULL,
197 0x0000000404080800ULL, 0x0000000400000000ULL, 0x0401000404080000ULL, 0x0000000004080000ULL,
198 0x0000000000000800ULL, 0x0401000400000800ULL, 0x0000000004080000ULL, 0x0000000404080800ULL,
199 0x0401000004080000ULL, 0x0000000000000800ULL, 0x0401000000000800ULL, 0x0401000400000000ULL,
200 0x0401000400000800ULL, 0x0401000000000000ULL, 0x0000000400000000ULL, 0x0401000004080800ULL,
201 0x0000000000000000ULL, 0x0401000404080800ULL, 0x0000000400000800ULL, 0x0401000000000800ULL,
202 0x0401000400000000ULL, 0x0401000004080000ULL, 0x0401000004080800ULL, 0x0000000000000000ULL,
203 0x0401000404080800ULL, 0x0000000404080000ULL, 0x0000000404080000ULL, 0x0000000004080800ULL,
204 0x0000000004080800ULL, 0x0000000400000800ULL, 0x0401000000000000ULL, 0x0401000404080000ULL
205 }
206 /* END CSTYLED */
207 };
208 
209 
210 static const uint64_t ip_table[2][256]=
211 {
212 /* BEGIN CSTYLED */
213 {
214 0x0000000000000000ULL, 0x0000000000000400ULL, 0x0080000000000280ULL, 0x0080000000000680ULL,
215 0x0000000000400000ULL, 0x0000000000400400ULL, 0x0080000000400280ULL, 0x0080000000400680ULL,
216 0x0000000000280000ULL, 0x0000000000280400ULL, 0x0080000000280280ULL, 0x0080000000280680ULL,
217 0x0000000000680000ULL, 0x0000000000680400ULL, 0x0080000000680280ULL, 0x0080000000680680ULL,
218 0x0000000400000000ULL, 0x0000000400000400ULL, 0x0080000400000280ULL, 0x0080000400000680ULL,
219 0x0000000400400000ULL, 0x0000000400400400ULL, 0x0080000400400280ULL, 0x0080000400400680ULL,
220 0x0000000400280000ULL, 0x0000000400280400ULL, 0x0080000400280280ULL, 0x0080000400280680ULL,
221 0x0000000400680000ULL, 0x0000000400680400ULL, 0x0080000400680280ULL, 0x0080000400680680ULL,
222 0x0000000280000000ULL, 0x0000000280000400ULL, 0x0080000280000280ULL, 0x0080000280000680ULL,
223 0x0000000280400000ULL, 0x0000000280400400ULL, 0x0080000280400280ULL, 0x0080000280400680ULL,
224 0x0000000280280000ULL, 0x0000000280280400ULL, 0x0080000280280280ULL, 0x0080000280280680ULL,
225 0x0000000280680000ULL, 0x0000000280680400ULL, 0x0080000280680280ULL, 0x0080000280680680ULL,
226 0x0000000680000000ULL, 0x0000000680000400ULL, 0x0080000680000280ULL, 0x0080000680000680ULL,
227 0x0000000680400000ULL, 0x0000000680400400ULL, 0x0080000680400280ULL, 0x0080000680400680ULL,
228 0x0000000680280000ULL, 0x0000000680280400ULL, 0x0080000680280280ULL, 0x0080000680280680ULL,
229 0x0000000680680000ULL, 0x0000000680680400ULL, 0x0080000680680280ULL, 0x0080000680680680ULL,
230 0x0000400000000000ULL, 0x0000400000000400ULL, 0x0080400000000280ULL, 0x0080400000000680ULL,
231 0x0000400000400000ULL, 0x0000400000400400ULL, 0x0080400000400280ULL, 0x0080400000400680ULL,
232 0x0000400000280000ULL, 0x0000400000280400ULL, 0x0080400000280280ULL, 0x0080400000280680ULL,
233 0x0000400000680000ULL, 0x0000400000680400ULL, 0x0080400000680280ULL, 0x0080400000680680ULL,
234 0x0000400400000000ULL, 0x0000400400000400ULL, 0x0080400400000280ULL, 0x0080400400000680ULL,
235 0x0000400400400000ULL, 0x0000400400400400ULL, 0x0080400400400280ULL, 0x0080400400400680ULL,
236 0x0000400400280000ULL, 0x0000400400280400ULL, 0x0080400400280280ULL, 0x0080400400280680ULL,
237 0x0000400400680000ULL, 0x0000400400680400ULL, 0x0080400400680280ULL, 0x0080400400680680ULL,
238 0x0000400280000000ULL, 0x0000400280000400ULL, 0x0080400280000280ULL, 0x0080400280000680ULL,
239 0x0000400280400000ULL, 0x0000400280400400ULL, 0x0080400280400280ULL, 0x0080400280400680ULL,
240 0x0000400280280000ULL, 0x0000400280280400ULL, 0x0080400280280280ULL, 0x0080400280280680ULL,
241 0x0000400280680000ULL, 0x0000400280680400ULL, 0x0080400280680280ULL, 0x0080400280680680ULL,
242 0x0000400680000000ULL, 0x0000400680000400ULL, 0x0080400680000280ULL, 0x0080400680000680ULL,
243 0x0000400680400000ULL, 0x0000400680400400ULL, 0x0080400680400280ULL, 0x0080400680400680ULL,
244 0x0000400680280000ULL, 0x0000400680280400ULL, 0x0080400680280280ULL, 0x0080400680280680ULL,
245 0x0000400680680000ULL, 0x0000400680680400ULL, 0x0080400680680280ULL, 0x0080400680680680ULL,
246 0x0000280000000000ULL, 0x0000280000000400ULL, 0x0080280000000280ULL, 0x0080280000000680ULL,
247 0x0000280000400000ULL, 0x0000280000400400ULL, 0x0080280000400280ULL, 0x0080280000400680ULL,
248 0x0000280000280000ULL, 0x0000280000280400ULL, 0x0080280000280280ULL, 0x0080280000280680ULL,
249 0x0000280000680000ULL, 0x0000280000680400ULL, 0x0080280000680280ULL, 0x0080280000680680ULL,
250 0x0000280400000000ULL, 0x0000280400000400ULL, 0x0080280400000280ULL, 0x0080280400000680ULL,
251 0x0000280400400000ULL, 0x0000280400400400ULL, 0x0080280400400280ULL, 0x0080280400400680ULL,
252 0x0000280400280000ULL, 0x0000280400280400ULL, 0x0080280400280280ULL, 0x0080280400280680ULL,
253 0x0000280400680000ULL, 0x0000280400680400ULL, 0x0080280400680280ULL, 0x0080280400680680ULL,
254 0x0000280280000000ULL, 0x0000280280000400ULL, 0x0080280280000280ULL, 0x0080280280000680ULL,
255 0x0000280280400000ULL, 0x0000280280400400ULL, 0x0080280280400280ULL, 0x0080280280400680ULL,
256 0x0000280280280000ULL, 0x0000280280280400ULL, 0x0080280280280280ULL, 0x0080280280280680ULL,
257 0x0000280280680000ULL, 0x0000280280680400ULL, 0x0080280280680280ULL, 0x0080280280680680ULL,
258 0x0000280680000000ULL, 0x0000280680000400ULL, 0x0080280680000280ULL, 0x0080280680000680ULL,
259 0x0000280680400000ULL, 0x0000280680400400ULL, 0x0080280680400280ULL, 0x0080280680400680ULL,
260 0x0000280680280000ULL, 0x0000280680280400ULL, 0x0080280680280280ULL, 0x0080280680280680ULL,
261 0x0000280680680000ULL, 0x0000280680680400ULL, 0x0080280680680280ULL, 0x0080280680680680ULL,
262 0x0000680000000000ULL, 0x0000680000000400ULL, 0x0080680000000280ULL, 0x0080680000000680ULL,
263 0x0000680000400000ULL, 0x0000680000400400ULL, 0x0080680000400280ULL, 0x0080680000400680ULL,
264 0x0000680000280000ULL, 0x0000680000280400ULL, 0x0080680000280280ULL, 0x0080680000280680ULL,
265 0x0000680000680000ULL, 0x0000680000680400ULL, 0x0080680000680280ULL, 0x0080680000680680ULL,
266 0x0000680400000000ULL, 0x0000680400000400ULL, 0x0080680400000280ULL, 0x0080680400000680ULL,
267 0x0000680400400000ULL, 0x0000680400400400ULL, 0x0080680400400280ULL, 0x0080680400400680ULL,
268 0x0000680400280000ULL, 0x0000680400280400ULL, 0x0080680400280280ULL, 0x0080680400280680ULL,
269 0x0000680400680000ULL, 0x0000680400680400ULL, 0x0080680400680280ULL, 0x0080680400680680ULL,
270 0x0000680280000000ULL, 0x0000680280000400ULL, 0x0080680280000280ULL, 0x0080680280000680ULL,
271 0x0000680280400000ULL, 0x0000680280400400ULL, 0x0080680280400280ULL, 0x0080680280400680ULL,
272 0x0000680280280000ULL, 0x0000680280280400ULL, 0x0080680280280280ULL, 0x0080680280280680ULL,
273 0x0000680280680000ULL, 0x0000680280680400ULL, 0x0080680280680280ULL, 0x0080680280680680ULL,
274 0x0000680680000000ULL, 0x0000680680000400ULL, 0x0080680680000280ULL, 0x0080680680000680ULL,
275 0x0000680680400000ULL, 0x0000680680400400ULL, 0x0080680680400280ULL, 0x0080680680400680ULL,
276 0x0000680680280000ULL, 0x0000680680280400ULL, 0x0080680680280280ULL, 0x0080680680280680ULL,
277 0x0000680680680000ULL, 0x0000680680680400ULL, 0x0080680680680280ULL, 0x0080680680680680ULL
278 },
279 {
280 0x0000000000000000ULL, 0x0000000000005000ULL, 0x0000000000000800ULL, 0x0000000000005800ULL,
281 0x0000000005000000ULL, 0x0000000005005000ULL, 0x0000000005000800ULL, 0x0000000005005800ULL,
282 0x0000000000800000ULL, 0x0000000000805000ULL, 0x0000000000800800ULL, 0x0000000000805800ULL,
283 0x0000000005800000ULL, 0x0000000005805000ULL, 0x0000000005800800ULL, 0x0000000005805800ULL,
284 0x0000005000000000ULL, 0x0000005000005000ULL, 0x0000005000000800ULL, 0x0000005000005800ULL,
285 0x0000005005000000ULL, 0x0000005005005000ULL, 0x0000005005000800ULL, 0x0000005005005800ULL,
286 0x0000005000800000ULL, 0x0000005000805000ULL, 0x0000005000800800ULL, 0x0000005000805800ULL,
287 0x0000005005800000ULL, 0x0000005005805000ULL, 0x0000005005800800ULL, 0x0000005005805800ULL,
288 0x0000000800000000ULL, 0x0000000800005000ULL, 0x0000000800000800ULL, 0x0000000800005800ULL,
289 0x0000000805000000ULL, 0x0000000805005000ULL, 0x0000000805000800ULL, 0x0000000805005800ULL,
290 0x0000000800800000ULL, 0x0000000800805000ULL, 0x0000000800800800ULL, 0x0000000800805800ULL,
291 0x0000000805800000ULL, 0x0000000805805000ULL, 0x0000000805800800ULL, 0x0000000805805800ULL,
292 0x0000005800000000ULL, 0x0000005800005000ULL, 0x0000005800000800ULL, 0x0000005800005800ULL,
293 0x0000005805000000ULL, 0x0000005805005000ULL, 0x0000005805000800ULL, 0x0000005805005800ULL,
294 0x0000005800800000ULL, 0x0000005800805000ULL, 0x0000005800800800ULL, 0x0000005800805800ULL,
295 0x0000005805800000ULL, 0x0000005805805000ULL, 0x0000005805800800ULL, 0x0000005805805800ULL,
296 0x0005000000000004ULL, 0x0005000000005004ULL, 0x0005000000000804ULL, 0x0005000000005804ULL,
297 0x0005000005000004ULL, 0x0005000005005004ULL, 0x0005000005000804ULL, 0x0005000005005804ULL,
298 0x0005000000800004ULL, 0x0005000000805004ULL, 0x0005000000800804ULL, 0x0005000000805804ULL,
299 0x0005000005800004ULL, 0x0005000005805004ULL, 0x0005000005800804ULL, 0x0005000005805804ULL,
300 0x0005005000000004ULL, 0x0005005000005004ULL, 0x0005005000000804ULL, 0x0005005000005804ULL,
301 0x0005005005000004ULL, 0x0005005005005004ULL, 0x0005005005000804ULL, 0x0005005005005804ULL,
302 0x0005005000800004ULL, 0x0005005000805004ULL, 0x0005005000800804ULL, 0x0005005000805804ULL,
303 0x0005005005800004ULL, 0x0005005005805004ULL, 0x0005005005800804ULL, 0x0005005005805804ULL,
304 0x0005000800000004ULL, 0x0005000800005004ULL, 0x0005000800000804ULL, 0x0005000800005804ULL,
305 0x0005000805000004ULL, 0x0005000805005004ULL, 0x0005000805000804ULL, 0x0005000805005804ULL,
306 0x0005000800800004ULL, 0x0005000800805004ULL, 0x0005000800800804ULL, 0x0005000800805804ULL,
307 0x0005000805800004ULL, 0x0005000805805004ULL, 0x0005000805800804ULL, 0x0005000805805804ULL,
308 0x0005005800000004ULL, 0x0005005800005004ULL, 0x0005005800000804ULL, 0x0005005800005804ULL,
309 0x0005005805000004ULL, 0x0005005805005004ULL, 0x0005005805000804ULL, 0x0005005805005804ULL,
310 0x0005005800800004ULL, 0x0005005800805004ULL, 0x0005005800800804ULL, 0x0005005800805804ULL,
311 0x0005005805800004ULL, 0x0005005805805004ULL, 0x0005005805800804ULL, 0x0005005805805804ULL,
312 0x0000800000000000ULL, 0x0000800000005000ULL, 0x0000800000000800ULL, 0x0000800000005800ULL,
313 0x0000800005000000ULL, 0x0000800005005000ULL, 0x0000800005000800ULL, 0x0000800005005800ULL,
314 0x0000800000800000ULL, 0x0000800000805000ULL, 0x0000800000800800ULL, 0x0000800000805800ULL,
315 0x0000800005800000ULL, 0x0000800005805000ULL, 0x0000800005800800ULL, 0x0000800005805800ULL,
316 0x0000805000000000ULL, 0x0000805000005000ULL, 0x0000805000000800ULL, 0x0000805000005800ULL,
317 0x0000805005000000ULL, 0x0000805005005000ULL, 0x0000805005000800ULL, 0x0000805005005800ULL,
318 0x0000805000800000ULL, 0x0000805000805000ULL, 0x0000805000800800ULL, 0x0000805000805800ULL,
319 0x0000805005800000ULL, 0x0000805005805000ULL, 0x0000805005800800ULL, 0x0000805005805800ULL,
320 0x0000800800000000ULL, 0x0000800800005000ULL, 0x0000800800000800ULL, 0x0000800800005800ULL,
321 0x0000800805000000ULL, 0x0000800805005000ULL, 0x0000800805000800ULL, 0x0000800805005800ULL,
322 0x0000800800800000ULL, 0x0000800800805000ULL, 0x0000800800800800ULL, 0x0000800800805800ULL,
323 0x0000800805800000ULL, 0x0000800805805000ULL, 0x0000800805800800ULL, 0x0000800805805800ULL,
324 0x0000805800000000ULL, 0x0000805800005000ULL, 0x0000805800000800ULL, 0x0000805800005800ULL,
325 0x0000805805000000ULL, 0x0000805805005000ULL, 0x0000805805000800ULL, 0x0000805805005800ULL,
326 0x0000805800800000ULL, 0x0000805800805000ULL, 0x0000805800800800ULL, 0x0000805800805800ULL,
327 0x0000805805800000ULL, 0x0000805805805000ULL, 0x0000805805800800ULL, 0x0000805805805800ULL,
328 0x0005800000000004ULL, 0x0005800000005004ULL, 0x0005800000000804ULL, 0x0005800000005804ULL,
329 0x0005800005000004ULL, 0x0005800005005004ULL, 0x0005800005000804ULL, 0x0005800005005804ULL,
330 0x0005800000800004ULL, 0x0005800000805004ULL, 0x0005800000800804ULL, 0x0005800000805804ULL,
331 0x0005800005800004ULL, 0x0005800005805004ULL, 0x0005800005800804ULL, 0x0005800005805804ULL,
332 0x0005805000000004ULL, 0x0005805000005004ULL, 0x0005805000000804ULL, 0x0005805000005804ULL,
333 0x0005805005000004ULL, 0x0005805005005004ULL, 0x0005805005000804ULL, 0x0005805005005804ULL,
334 0x0005805000800004ULL, 0x0005805000805004ULL, 0x0005805000800804ULL, 0x0005805000805804ULL,
335 0x0005805005800004ULL, 0x0005805005805004ULL, 0x0005805005800804ULL, 0x0005805005805804ULL,
336 0x0005800800000004ULL, 0x0005800800005004ULL, 0x0005800800000804ULL, 0x0005800800005804ULL,
337 0x0005800805000004ULL, 0x0005800805005004ULL, 0x0005800805000804ULL, 0x0005800805005804ULL,
338 0x0005800800800004ULL, 0x0005800800805004ULL, 0x0005800800800804ULL, 0x0005800800805804ULL,
339 0x0005800805800004ULL, 0x0005800805805004ULL, 0x0005800805800804ULL, 0x0005800805805804ULL,
340 0x0005805800000004ULL, 0x0005805800005004ULL, 0x0005805800000804ULL, 0x0005805800005804ULL,
341 0x0005805805000004ULL, 0x0005805805005004ULL, 0x0005805805000804ULL, 0x0005805805005804ULL,
342 0x0005805800800004ULL, 0x0005805800805004ULL, 0x0005805800800804ULL, 0x0005805800805804ULL,
343 0x0005805805800004ULL, 0x0005805805805004ULL, 0x0005805805800804ULL, 0x0005805805805804ULL
344 }
345 /* END CSTYLED */
346 };
347 
348 static const uint32_t fp_table[256]=
349 {
350 0x00000000, 0x80000000, 0x00800000, 0x80800000,
351 0x00008000, 0x80008000, 0x00808000, 0x80808000,
352 0x00000080, 0x80000080, 0x00800080, 0x80800080,
353 0x00008080, 0x80008080, 0x00808080, 0x80808080,
354 0x40000000, 0xc0000000, 0x40800000, 0xc0800000,
355 0x40008000, 0xc0008000, 0x40808000, 0xc0808000,
356 0x40000080, 0xc0000080, 0x40800080, 0xc0800080,
357 0x40008080, 0xc0008080, 0x40808080, 0xc0808080,
358 0x00400000, 0x80400000, 0x00c00000, 0x80c00000,
359 0x00408000, 0x80408000, 0x00c08000, 0x80c08000,
360 0x00400080, 0x80400080, 0x00c00080, 0x80c00080,
361 0x00408080, 0x80408080, 0x00c08080, 0x80c08080,
362 0x40400000, 0xc0400000, 0x40c00000, 0xc0c00000,
363 0x40408000, 0xc0408000, 0x40c08000, 0xc0c08000,
364 0x40400080, 0xc0400080, 0x40c00080, 0xc0c00080,
365 0x40408080, 0xc0408080, 0x40c08080, 0xc0c08080,
366 0x00004000, 0x80004000, 0x00804000, 0x80804000,
367 0x0000c000, 0x8000c000, 0x0080c000, 0x8080c000,
368 0x00004080, 0x80004080, 0x00804080, 0x80804080,
369 0x0000c080, 0x8000c080, 0x0080c080, 0x8080c080,
370 0x40004000, 0xc0004000, 0x40804000, 0xc0804000,
371 0x4000c000, 0xc000c000, 0x4080c000, 0xc080c000,
372 0x40004080, 0xc0004080, 0x40804080, 0xc0804080,
373 0x4000c080, 0xc000c080, 0x4080c080, 0xc080c080,
374 0x00404000, 0x80404000, 0x00c04000, 0x80c04000,
375 0x0040c000, 0x8040c000, 0x00c0c000, 0x80c0c000,
376 0x00404080, 0x80404080, 0x00c04080, 0x80c04080,
377 0x0040c080, 0x8040c080, 0x00c0c080, 0x80c0c080,
378 0x40404000, 0xc0404000, 0x40c04000, 0xc0c04000,
379 0x4040c000, 0xc040c000, 0x40c0c000, 0xc0c0c000,
380 0x40404080, 0xc0404080, 0x40c04080, 0xc0c04080,
381 0x4040c080, 0xc040c080, 0x40c0c080, 0xc0c0c080,
382 0x00000040, 0x80000040, 0x00800040, 0x80800040,
383 0x00008040, 0x80008040, 0x00808040, 0x80808040,
384 0x000000c0, 0x800000c0, 0x008000c0, 0x808000c0,
385 0x000080c0, 0x800080c0, 0x008080c0, 0x808080c0,
386 0x40000040, 0xc0000040, 0x40800040, 0xc0800040,
387 0x40008040, 0xc0008040, 0x40808040, 0xc0808040,
388 0x400000c0, 0xc00000c0, 0x408000c0, 0xc08000c0,
389 0x400080c0, 0xc00080c0, 0x408080c0, 0xc08080c0,
390 0x00400040, 0x80400040, 0x00c00040, 0x80c00040,
391 0x00408040, 0x80408040, 0x00c08040, 0x80c08040,
392 0x004000c0, 0x804000c0, 0x00c000c0, 0x80c000c0,
393 0x004080c0, 0x804080c0, 0x00c080c0, 0x80c080c0,
394 0x40400040, 0xc0400040, 0x40c00040, 0xc0c00040,
395 0x40408040, 0xc0408040, 0x40c08040, 0xc0c08040,
396 0x404000c0, 0xc04000c0, 0x40c000c0, 0xc0c000c0,
397 0x404080c0, 0xc04080c0, 0x40c080c0, 0xc0c080c0,
398 0x00004040, 0x80004040, 0x00804040, 0x80804040,
399 0x0000c040, 0x8000c040, 0x0080c040, 0x8080c040,
400 0x000040c0, 0x800040c0, 0x008040c0, 0x808040c0,
401 0x0000c0c0, 0x8000c0c0, 0x0080c0c0, 0x8080c0c0,
402 0x40004040, 0xc0004040, 0x40804040, 0xc0804040,
403 0x4000c040, 0xc000c040, 0x4080c040, 0xc080c040,
404 0x400040c0, 0xc00040c0, 0x408040c0, 0xc08040c0,
405 0x4000c0c0, 0xc000c0c0, 0x4080c0c0, 0xc080c0c0,
406 0x00404040, 0x80404040, 0x00c04040, 0x80c04040,
407 0x0040c040, 0x8040c040, 0x00c0c040, 0x80c0c040,
408 0x004040c0, 0x804040c0, 0x00c040c0, 0x80c040c0,
409 0x0040c0c0, 0x8040c0c0, 0x00c0c0c0, 0x80c0c0c0,
410 0x40404040, 0xc0404040, 0x40c04040, 0xc0c04040,
411 0x4040c040, 0xc040c040, 0x40c0c040, 0xc0c0c040,
412 0x404040c0, 0xc04040c0, 0x40c040c0, 0xc0c040c0,
413 0x4040c0c0, 0xc040c0c0, 0x40c0c0c0, 0xc0c0c0c0
414 };
415 
416 static const uint64_t all_a = 0xaaaaaaaaaaaaaaaaULL;
417 static const uint64_t all_5 = 0x5555555555555555ULL;
418 static const uint64_t top_1 = 0xfc000000000000ULL;
419 static const uint64_t mid_4 = 0x3fffffc000000ULL;
420 static const uint64_t low_3 = 0x3ffff00ULL;
421 
422 
423 static void
424 des_ip(uint64_t *l, uint64_t *r, uint64_t pt)
425 {
426 	uint64_t a, b;
427 
428 	a = pt & all_a;
429 	b = pt & all_5;
430 	a = a | (a << 7);
431 	b = b | (b >> 7);
432 
433 	b = (ip_table[0][(b >> 48) & 255ULL]) |
434 	    (ip_table[1][(b >> 32) & 255ULL]) |
435 	    (ip_table[0][(b >> 16) & 255ULL] << 6) |
436 	    (ip_table[1][b & 255ULL] << 6);
437 
438 	a = (ip_table[0][(a >> 56) & 255]) |
439 	    (ip_table[1][(a >> 40) & 255]) |
440 	    (ip_table[0][(a >> 24) & 255] << 6) |
441 	    (ip_table[1][(a >> 8) & 255] << 6);
442 
443 	*l = ((b & top_1) << 8) |
444 	    (b & mid_4) |
445 	    ((b & low_3) >> 5);
446 
447 	*r = ((a & top_1) << 8) |
448 	    (a & mid_4) |
449 	    ((a & low_3) >> 5);
450 }
451 
452 
453 static uint64_t
454 des_fp(uint64_t l, uint64_t r)
455 {
456 	uint32_t upper, lower;
457 
458 	lower = fp_table[((l >> 55) & 240) | ((r >> 59) & 15)] |
459 	    (fp_table[((l >> 35) & 240) | ((r>>39) & 15)] >> 2) |
460 	    (fp_table[((l >> 23) & 240) | ((r >> 27) & 15)] >> 4) |
461 	    (fp_table[((l >> 6) & 240) | ((r >> 10) & 15)] >> 6);
462 
463 	upper = fp_table[((l >> 41) & 240) | ((r >> 45) & 15)] |
464 	    (fp_table[((l >> 29) & 240) | ((r >> 33) & 15)] >> 2) |
465 	    (fp_table[((l >> 12) & 240) | ((r >> 16) & 15)] >> 4) |
466 	    (fp_table[(l & 240) | (r >> 4) & 15] >> 6);
467 
468 	return ((((uint64_t)upper) << 32) | (uint64_t)lower);
469 
470 }
471 
472 uint64_t
473 des_crypt_impl(uint64_t *ks, uint64_t block, int one_or_three)
474 {
475 	int i, j;
476 	uint64_t l, r, t;
477 
478 	des_ip(&l, &r, block);
479 	for (j = 0; j < one_or_three; j++) {
480 		for (i = j * 16; i < (j + 1) * 16; i++) {
481 			t = r ^ ks[i];
482 			t = sbox_table[0][t >> 58] |
483 			    sbox_table[1][(t >> 44) & 63] |
484 			    sbox_table[2][(t >> 38) & 63] |
485 			    sbox_table[3][(t >> 32) & 63] |
486 			    sbox_table[4][(t >> 26) & 63] |
487 			    sbox_table[5][(t >> 15) & 63] |
488 			    sbox_table[6][(t >> 9) & 63] |
489 			    sbox_table[7][(t >> 3) & 63];
490 			t = t^l;
491 			l = r;
492 			r = t;
493 		}
494 		r = l;
495 		l = t;
496 	}
497 
498 	return (des_fp(l, r));
499 }
500 #endif /* !sun4u */
501 
502 int
503 des3_crunch_block(const void *cookie, const uint8_t block[DES_BLOCK_LEN],
504     uint8_t out_block[DES_BLOCK_LEN], boolean_t decrypt)
505 {
506 	keysched3_t *ksch = (keysched3_t *)cookie;
507 
508 	/*
509 	 * The code below, that is always executed on LITTLE_ENDIAN machines,
510 	 * reverses bytes in the block.  On BIG_ENDIAN, the same code
511 	 * copies the block without reversing bytes.
512 	 */
513 #ifdef _BIG_ENDIAN
514 	if (IS_P2ALIGNED(block, sizeof (uint64_t)) &&
515 	    IS_P2ALIGNED(out_block, sizeof (uint64_t))) {
516 		if (decrypt == B_TRUE)
517 			/* LINTED */
518 			*(uint64_t *)out_block = des_crypt_impl(
519 			    ksch->ksch_decrypt, /* LINTED */
520 			    *(uint64_t *)block, 3);
521 		else
522 			/* LINTED */
523 			*(uint64_t *)out_block = des_crypt_impl(
524 			    ksch->ksch_encrypt, /* LINTED */
525 			    *(uint64_t *)block, 3);
526 	} else
527 #endif	/* _BIG_ENDIAN */
528 	{
529 		uint64_t tmp;
530 
531 #ifdef UNALIGNED_POINTERS_PERMITTED
532 		tmp = htonll(*(uint64_t *)(void *)&block[0]);
533 #else
534 		tmp = (((uint64_t)block[0] << 56) | ((uint64_t)block[1] << 48) |
535 		    ((uint64_t)block[2] << 40) | ((uint64_t)block[3] << 32) |
536 		    ((uint64_t)block[4] << 24) | ((uint64_t)block[5] << 16) |
537 		    ((uint64_t)block[6] << 8) | (uint64_t)block[7]);
538 #endif	/* UNALIGNED_POINTERS_PERMITTED */
539 
540 		if (decrypt == B_TRUE)
541 			tmp = des_crypt_impl(ksch->ksch_decrypt, tmp, 3);
542 		else
543 			tmp = des_crypt_impl(ksch->ksch_encrypt, tmp, 3);
544 
545 #ifdef UNALIGNED_POINTERS_PERMITTED
546 		*(uint64_t *)(void *)&out_block[0] = htonll(tmp);
547 #else
548 		out_block[0] = tmp >> 56;
549 		out_block[1] = tmp >> 48;
550 		out_block[2] = tmp >> 40;
551 		out_block[3] = tmp >> 32;
552 		out_block[4] = tmp >> 24;
553 		out_block[5] = tmp >> 16;
554 		out_block[6] = tmp >> 8;
555 		out_block[7] = (uint8_t)tmp;
556 #endif	/* UNALIGNED_POINTERS_PERMITTED */
557 	}
558 	return (CRYPTO_SUCCESS);
559 }
560 
561 int
562 des_crunch_block(const void *cookie, const uint8_t block[DES_BLOCK_LEN],
563     uint8_t out_block[DES_BLOCK_LEN], boolean_t decrypt)
564 {
565 	keysched_t *ksch = (keysched_t *)cookie;
566 
567 	/*
568 	 * The code below, that is always executed on LITTLE_ENDIAN machines,
569 	 * reverses bytes in the block.  On BIG_ENDIAN, the same code
570 	 * copies the block without reversing bytes.
571 	 */
572 #ifdef _BIG_ENDIAN
573 	if (IS_P2ALIGNED(block, sizeof (uint64_t)) &&
574 	    IS_P2ALIGNED(out_block, sizeof (uint64_t))) {
575 		if (decrypt == B_TRUE)
576 			/* LINTED */
577 			*(uint64_t *)out_block = des_crypt_impl(
578 			    ksch->ksch_decrypt, /* LINTED */
579 			    *(uint64_t *)block, 1);
580 		else
581 			/* LINTED */
582 			*(uint64_t *)out_block = des_crypt_impl(
583 			    ksch->ksch_encrypt, /* LINTED */
584 			    *(uint64_t *)block, 1);
585 
586 	} else
587 #endif	/* _BIG_ENDIAN */
588 	{
589 		uint64_t tmp;
590 
591 #ifdef UNALIGNED_POINTERS_PERMITTED
592 		tmp = htonll(*(uint64_t *)(void *)&block[0]);
593 #else
594 		tmp = (((uint64_t)block[0] << 56) | ((uint64_t)block[1] << 48) |
595 		    ((uint64_t)block[2] << 40) | ((uint64_t)block[3] << 32) |
596 		    ((uint64_t)block[4] << 24) | ((uint64_t)block[5] << 16) |
597 		    ((uint64_t)block[6] << 8) | (uint64_t)block[7]);
598 #endif	/* UNALIGNED_POINTERS_PERMITTED */
599 
600 
601 		if (decrypt == B_TRUE)
602 			tmp = des_crypt_impl(ksch->ksch_decrypt, tmp, 1);
603 		else
604 			tmp = des_crypt_impl(ksch->ksch_encrypt, tmp, 1);
605 
606 #ifdef UNALIGNED_POINTERS_PERMITTED
607 		*(uint64_t *)(void *)&out_block[0] = htonll(tmp);
608 #else
609 		out_block[0] = tmp >> 56;
610 		out_block[1] = tmp >> 48;
611 		out_block[2] = tmp >> 40;
612 		out_block[3] = tmp >> 32;
613 		out_block[4] = tmp >> 24;
614 		out_block[5] = tmp >> 16;
615 		out_block[6] = tmp >> 8;
616 		out_block[7] = (uint8_t)tmp;
617 #endif	/* UNALIGNED_POINTERS_PERMITTED */
618 	}
619 	return (CRYPTO_SUCCESS);
620 }
621 
622 static boolean_t
623 keycheck(uint8_t *key, uint8_t *corrected_key)
624 {
625 	uint64_t key_so_far;
626 	uint_t i;
627 	/*
628 	 * Table of weak and semi-weak keys.  Fortunately, weak keys are
629 	 * endian-independent, and some semi-weak keys can be paired up in
630 	 * endian-opposite order.  Since keys are stored as uint64_t's,
631 	 * use the ifdef _LITTLE_ENDIAN where appropriate.
632 	 */
633 	static uint64_t des_weak_keys[] = {
634 		/* Really weak keys.  Byte-order independent values. */
635 		0x0101010101010101ULL,
636 		0x1f1f1f1f0e0e0e0eULL,
637 		0xe0e0e0e0f1f1f1f1ULL,
638 		0xfefefefefefefefeULL,
639 
640 		/* Semi-weak (and a few possibly-weak) keys. */
641 
642 		/* Byte-order independent semi-weak keys. */
643 		0x01fe01fe01fe01feULL,	0xfe01fe01fe01fe01ULL,
644 
645 		/* Byte-order dependent semi-weak keys. */
646 #ifdef _LITTLE_ENDIAN
647 		0xf10ef10ee01fe01fULL,	0x0ef10ef11fe01fe0ULL,
648 		0x01f101f101e001e0ULL,	0xf101f101e001e001ULL,
649 		0x0efe0efe1ffe1ffeULL,	0xfe0efe0efe1ffe1fULL,
650 		0x010e010e011f011fULL,	0x0e010e011f011f01ULL,
651 		0xf1fef1fee0fee0feULL,	0xfef1fef1fee0fee0ULL,
652 #else	/* Big endian */
653 		0x1fe01fe00ef10ef1ULL,	0xe01fe01ff10ef10eULL,
654 		0x01e001e001f101f1ULL,	0xe001e001f101f101ULL,
655 		0x1ffe1ffe0efe0efeULL,	0xfe1ffe1ffe0efe0eULL,
656 		0x011f011f010e010eULL,	0x1f011f010e010e01ULL,
657 		0xe0fee0fef1fef1feULL,	0xfee0fee0fef1fef1ULL,
658 #endif	/* _LITTLE_ENDIAN */
659 
660 		/* We'll save the other possibly-weak keys for the future. */
661 	};
662 
663 	if (key == NULL)
664 		return (B_FALSE);
665 
666 #ifdef UNALIGNED_POINTERS_PERMITTED
667 	key_so_far = htonll(*(uint64_t *)(void *)&key[0]);
668 #else
669 	/*
670 	 * The code below reverses the bytes on LITTLE_ENDIAN machines.
671 	 * On BIG_ENDIAN, the same code copies without reversing
672 	 * the bytes.
673 	 */
674 	key_so_far = (((uint64_t)key[0] << 56) | ((uint64_t)key[1] << 48) |
675 	    ((uint64_t)key[2] << 40) | ((uint64_t)key[3] << 32) |
676 	    ((uint64_t)key[4] << 24) | ((uint64_t)key[5] << 16) |
677 	    ((uint64_t)key[6] << 8) | (uint64_t)key[7]);
678 #endif	/* UNALIGNED_POINTERS_PERMITTED */
679 
680 	/*
681 	 * Fix parity.
682 	 */
683 	fix_des_parity(&key_so_far);
684 
685 	/* Do weak key check itself. */
686 	for (i = 0; i < (sizeof (des_weak_keys) / sizeof (uint64_t)); i++)
687 		if (key_so_far == des_weak_keys[i]) {
688 			return (B_FALSE);
689 		}
690 
691 	if (corrected_key != NULL) {
692 #ifdef UNALIGNED_POINTERS_PERMITTED
693 		*(uint64_t *)(void *)&corrected_key[0] = htonll(key_so_far);
694 #else
695 		/*
696 		 * The code below reverses the bytes on LITTLE_ENDIAN machines.
697 		 * On BIG_ENDIAN, the same code copies without reversing
698 		 * the bytes.
699 		 */
700 		corrected_key[0] = key_so_far >> 56;
701 		corrected_key[1] = key_so_far >> 48;
702 		corrected_key[2] = key_so_far >> 40;
703 		corrected_key[3] = key_so_far >> 32;
704 		corrected_key[4] = key_so_far >> 24;
705 		corrected_key[5] = key_so_far >> 16;
706 		corrected_key[6] = key_so_far >> 8;
707 		corrected_key[7] = (uint8_t)key_so_far;
708 #endif	/* UNALIGNED_POINTERS_PERMITTED */
709 	}
710 	return (B_TRUE);
711 }
712 
713 static boolean_t
714 des23_keycheck(uint8_t *key, uint8_t *corrected_key, boolean_t des3)
715 {
716 	uint64_t aligned_key[DES3_KEYSIZE / sizeof (uint64_t)];
717 	uint64_t key_so_far, scratch, *currentkey;
718 	uint_t j, num_weakkeys = 0;
719 	uint8_t keysize = DES3_KEYSIZE;
720 	uint8_t checks = 3;
721 
722 	if (key == NULL) {
723 		return (B_FALSE);
724 	}
725 
726 	if (des3 == B_FALSE) {
727 		keysize = DES2_KEYSIZE;
728 		checks = 2;
729 	}
730 
731 	if (!IS_P2ALIGNED(key, sizeof (uint64_t))) {
732 		bcopy(key, aligned_key, keysize);
733 		currentkey = (uint64_t *)aligned_key;
734 	} else {
735 		/* LINTED */
736 		currentkey = (uint64_t *)key;
737 	}
738 
739 	for (j = 0; j < checks; j++) {
740 		key_so_far = currentkey[j];
741 
742 		if (!keycheck((uint8_t *)&key_so_far, (uint8_t *)&scratch)) {
743 			if (++num_weakkeys > 1) {
744 				return (B_FALSE);
745 			}
746 			/*
747 			 * We found a weak key, but since
748 			 * we've only found one weak key,
749 			 * we can not reject the whole 3DES
750 			 * set of keys as weak.
751 			 *
752 			 * Break from the weak key loop
753 			 * (since this DES key is weak) and
754 			 * continue on.
755 			 */
756 		}
757 
758 		currentkey[j] = scratch;
759 	}
760 
761 	/*
762 	 * Perform key equivalence checks, now that parity is properly set.
763 	 * 1st and 2nd keys must be unique, the 3rd key can be the same as
764 	 * the 1st key for the 2 key variant of 3DES.
765 	 */
766 	if (currentkey[0] == currentkey[1] || currentkey[1] == currentkey[2])
767 		return (B_FALSE);
768 
769 	if (corrected_key != NULL) {
770 		bcopy(currentkey, corrected_key, keysize);
771 	}
772 
773 	return (B_TRUE);
774 }
775 
776 boolean_t
777 des_keycheck(uint8_t *key, des_strength_t strength, uint8_t *corrected_key)
778 {
779 	if (strength == DES) {
780 		return (keycheck(key, corrected_key));
781 	} else if (strength == DES2) {
782 		return (des23_keycheck(key, corrected_key, B_FALSE));
783 	} else if (strength == DES3) {
784 		return (des23_keycheck(key, corrected_key, B_TRUE));
785 	} else {
786 		return (B_FALSE);
787 	}
788 }
789 
790 void
791 des_parity_fix(uint8_t *key, des_strength_t strength, uint8_t *corrected_key)
792 {
793 	uint64_t aligned_key[DES3_KEYSIZE / sizeof (uint64_t)];
794 	uint8_t *paritied_key;
795 	uint64_t key_so_far;
796 	int i = 0, offset = 0;
797 
798 	if (strength == DES)
799 		bcopy(key, aligned_key, DES_KEYSIZE);
800 	else
801 		bcopy(key, aligned_key, DES3_KEYSIZE);
802 
803 	paritied_key = (uint8_t *)aligned_key;
804 	while (strength > i) {
805 		offset = 8 * i;
806 #ifdef UNALIGNED_POINTERS_PERMITTED
807 		key_so_far = htonll(*(uint64_t *)(void *)&paritied_key[offset]);
808 #else
809 		key_so_far = (((uint64_t)paritied_key[offset + 0] << 56) |
810 		    ((uint64_t)paritied_key[offset + 1] << 48) |
811 		    ((uint64_t)paritied_key[offset + 2] << 40) |
812 		    ((uint64_t)paritied_key[offset + 3] << 32) |
813 		    ((uint64_t)paritied_key[offset + 4] << 24) |
814 		    ((uint64_t)paritied_key[offset + 5] << 16) |
815 		    ((uint64_t)paritied_key[offset + 6] << 8) |
816 		    (uint64_t)paritied_key[offset + 7]);
817 #endif	/* UNALIGNED_POINTERS_PERMITTED */
818 
819 		fix_des_parity(&key_so_far);
820 
821 #ifdef UNALIGNED_POINTERS_PERMITTED
822 		*(uint64_t *)(void *)&paritied_key[offset] = htonll(key_so_far);
823 #else
824 		paritied_key[offset + 0] = key_so_far >> 56;
825 		paritied_key[offset + 1] = key_so_far >> 48;
826 		paritied_key[offset + 2] = key_so_far >> 40;
827 		paritied_key[offset + 3] = key_so_far >> 32;
828 		paritied_key[offset + 4] = key_so_far >> 24;
829 		paritied_key[offset + 5] = key_so_far >> 16;
830 		paritied_key[offset + 6] = key_so_far >> 8;
831 		paritied_key[offset + 7] = (uint8_t)key_so_far;
832 #endif	/* UNALIGNED_POINTERS_PERMITTED */
833 
834 		i++;
835 	}
836 
837 	bcopy(paritied_key, corrected_key, DES_KEYSIZE * strength);
838 }
839 
840 
841 /*
842  * Initialize key schedule for DES, DES2, and DES3
843  */
844 void
845 des_init_keysched(uint8_t *cipherKey, des_strength_t strength, void *ks)
846 {
847 	uint64_t *encryption_ks;
848 	uint64_t *decryption_ks;
849 	uint64_t keysched[48];
850 	uint64_t key_uint64[3];
851 	uint64_t tmp;
852 	uint_t keysize, i, j;
853 
854 	switch (strength) {
855 	case DES:
856 		keysize = DES_KEYSIZE;
857 		encryption_ks = ((keysched_t *)ks)->ksch_encrypt;
858 		decryption_ks = ((keysched_t *)ks)->ksch_decrypt;
859 		break;
860 	case DES2:
861 		keysize = DES2_KEYSIZE;
862 		encryption_ks = ((keysched3_t *)ks)->ksch_encrypt;
863 		decryption_ks = ((keysched3_t *)ks)->ksch_decrypt;
864 		break;
865 	case DES3:
866 		keysize = DES3_KEYSIZE;
867 		encryption_ks = ((keysched3_t *)ks)->ksch_encrypt;
868 		decryption_ks = ((keysched3_t *)ks)->ksch_decrypt;
869 	}
870 
871 	/*
872 	 * The code below, that is always executed on LITTLE_ENDIAN machines,
873 	 * reverses every 8 bytes in the key.  On BIG_ENDIAN, the same code
874 	 * copies the key without reversing bytes.
875 	 */
876 #ifdef _BIG_ENDIAN
877 	if (IS_P2ALIGNED(cipherKey, sizeof (uint64_t))) {
878 		for (i = 0, j = 0; j < keysize; i++, j += 8) {
879 			/* LINTED: pointer alignment */
880 			key_uint64[i] = *((uint64_t *)&cipherKey[j]);
881 		}
882 	} else
883 #endif	/* _BIG_ENDIAN */
884 	{
885 		for (i = 0, j = 0; j < keysize; i++, j += 8) {
886 #ifdef UNALIGNED_POINTERS_PERMITTED
887 			key_uint64[i] =
888 			    htonll(*(uint64_t *)(void *)&cipherKey[j]);
889 #else
890 			key_uint64[i] = (((uint64_t)cipherKey[j] << 56) |
891 			    ((uint64_t)cipherKey[j + 1] << 48) |
892 			    ((uint64_t)cipherKey[j + 2] << 40) |
893 			    ((uint64_t)cipherKey[j + 3] << 32) |
894 			    ((uint64_t)cipherKey[j + 4] << 24) |
895 			    ((uint64_t)cipherKey[j + 5] << 16) |
896 			    ((uint64_t)cipherKey[j + 6] << 8) |
897 			    (uint64_t)cipherKey[j + 7]);
898 #endif	/* UNALIGNED_POINTERS_PERMITTED */
899 		}
900 	}
901 
902 	switch (strength) {
903 	case DES:
904 		des_ks(keysched, key_uint64[0]);
905 		break;
906 
907 	case DES2:
908 		/* DES2 is just DES3 with the first and third keys the same */
909 		bcopy(key_uint64, key_uint64 + 2, DES_KEYSIZE);
910 		/* FALLTHRU */
911 	case DES3:
912 		des_ks(keysched, key_uint64[0]);
913 		des_ks(keysched + 16, key_uint64[1]);
914 		for (i = 0; i < 8; i++) {
915 			tmp = keysched[16+i];
916 			keysched[16+i] = keysched[31-i];
917 			keysched[31-i] = tmp;
918 		}
919 		des_ks(keysched+32, key_uint64[2]);
920 		keysize = DES3_KEYSIZE;
921 	}
922 
923 	/* save the encryption keyschedule */
924 	bcopy(keysched, encryption_ks, keysize * 16);
925 
926 	/* reverse the key schedule */
927 	for (i = 0; i < keysize; i++) {
928 		tmp = keysched[i];
929 		keysched[i] = keysched[2 * keysize - 1 - i];
930 		keysched[2 * keysize -1 -i] = tmp;
931 	}
932 
933 	/* save the decryption keyschedule */
934 	bcopy(keysched, decryption_ks, keysize * 16);
935 }
936 
937 /*
938  * Allocate key schedule.
939  */
940 /*ARGSUSED*/
941 void *
942 des_alloc_keysched(size_t *keysched_size, des_strength_t strength, int kmflag)
943 {
944 	void *keysched;
945 
946 	size_t size;
947 
948 	switch (strength) {
949 	case DES:
950 		size = sizeof (keysched_t);
951 		break;
952 	case DES2:
953 	case DES3:
954 		size = sizeof (keysched3_t);
955 	}
956 
957 #ifdef	_KERNEL
958 	keysched = (keysched_t *)kmem_alloc(size, kmflag);
959 #else	/* !_KERNEL */
960 	keysched = (keysched_t *)malloc(size);
961 #endif	/* _KERNEL */
962 
963 	if (keysched == NULL)
964 		return (NULL);
965 
966 	if (keysched_size != NULL)
967 		*keysched_size = size;
968 
969 	return (keysched);
970 }
971 
972 /*
973  * Replace the LSB of each byte by the xor of the other
974  * 7 bits.  The tricky thing is that the original contents of the LSBs
975  * are nullified by including them twice in the xor computation.
976  */
977 static void
978 fix_des_parity(uint64_t *keyp)
979 {
980 	uint64_t k = *keyp;
981 	k ^= k >> 1;
982 	k ^= k >> 2;
983 	k ^= k >> 4;
984 	*keyp ^= (k & 0x0101010101010101ULL);
985 	*keyp ^= 0x0101010101010101ULL;
986 }
987 
988 void
989 des_copy_block(uint8_t *in, uint8_t *out)
990 {
991 	if (IS_P2ALIGNED(in, sizeof (uint32_t)) &&
992 	    IS_P2ALIGNED(out, sizeof (uint32_t))) {
993 		/* LINTED: pointer alignment */
994 		*(uint32_t *)&out[0] = *(uint32_t *)&in[0];
995 		/* LINTED: pointer alignment */
996 		*(uint32_t *)&out[4] = *(uint32_t *)&in[4];
997 	} else {
998 		DES_COPY_BLOCK(in, out);
999 	}
1000 }
1001 
1002 /* XOR block of data into dest */
1003 void
1004 des_xor_block(uint8_t *data, uint8_t *dst)
1005 {
1006 	if (IS_P2ALIGNED(dst, sizeof (uint32_t)) &&
1007 	    IS_P2ALIGNED(data, sizeof (uint32_t))) {
1008 		/* LINTED: pointer alignment */
1009 		*(uint32_t *)&dst[0] ^=
1010 		    /* LINTED: pointer alignment */
1011 		    *(uint32_t *)&data[0];
1012 		    /* LINTED: pointer alignment */
1013 		*(uint32_t *)&dst[4] ^=
1014 		    /* LINTED: pointer alignment */
1015 		    *(uint32_t *)&data[4];
1016 	} else {
1017 		DES_XOR_BLOCK(data, dst);
1018 	}
1019 }
1020 
1021 int
1022 des_encrypt_block(const void *keysched, const uint8_t *in, uint8_t *out)
1023 {
1024 	return (des_crunch_block(keysched, in, out, B_FALSE));
1025 }
1026 
1027 int
1028 des3_encrypt_block(const void *keysched, const uint8_t *in, uint8_t *out)
1029 {
1030 	return (des3_crunch_block(keysched, in, out, B_FALSE));
1031 }
1032 
1033 int
1034 des_decrypt_block(const void *keysched, const uint8_t *in, uint8_t *out)
1035 {
1036 	return (des_crunch_block(keysched, in, out, B_TRUE));
1037 }
1038 
1039 int
1040 des3_decrypt_block(const void *keysched, const uint8_t *in, uint8_t *out)
1041 {
1042 	return (des3_crunch_block(keysched, in, out, B_TRUE));
1043 }
1044 
1045 /*
1046  * Encrypt multiple blocks of data according to mode.
1047  */
1048 int
1049 des_encrypt_contiguous_blocks(void *ctx, char *data, size_t length,
1050     crypto_data_t *out)
1051 {
1052 	des_ctx_t *des_ctx = ctx;
1053 	int rv;
1054 
1055 	if (des_ctx->dc_flags & DES3_STRENGTH) {
1056 		if (des_ctx->dc_flags & CBC_MODE) {
1057 			rv = cbc_encrypt_contiguous_blocks(ctx, data,
1058 			    length, out, DES_BLOCK_LEN, des3_encrypt_block,
1059 			    des_copy_block, des_xor_block);
1060 		} else {
1061 			rv = ecb_cipher_contiguous_blocks(ctx, data, length,
1062 			    out, DES_BLOCK_LEN, des3_encrypt_block);
1063 		}
1064 	} else {
1065 		if (des_ctx->dc_flags & CBC_MODE) {
1066 			rv = cbc_encrypt_contiguous_blocks(ctx, data,
1067 			    length, out, DES_BLOCK_LEN, des_encrypt_block,
1068 			    des_copy_block, des_xor_block);
1069 		} else {
1070 			rv = ecb_cipher_contiguous_blocks(ctx, data, length,
1071 			    out, DES_BLOCK_LEN, des_encrypt_block);
1072 		}
1073 	}
1074 	return (rv);
1075 }
1076 
1077 /*
1078  * Decrypt multiple blocks of data according to mode.
1079  */
1080 int
1081 des_decrypt_contiguous_blocks(void *ctx, char *data, size_t length,
1082     crypto_data_t *out)
1083 {
1084 	des_ctx_t *des_ctx = ctx;
1085 	int rv;
1086 
1087 	if (des_ctx->dc_flags & DES3_STRENGTH) {
1088 		if (des_ctx->dc_flags & CBC_MODE) {
1089 			rv = cbc_decrypt_contiguous_blocks(ctx, data,
1090 			    length, out, DES_BLOCK_LEN, des3_decrypt_block,
1091 			    des_copy_block, des_xor_block);
1092 		} else {
1093 			rv = ecb_cipher_contiguous_blocks(ctx, data, length,
1094 			    out, DES_BLOCK_LEN, des3_decrypt_block);
1095 			if (rv == CRYPTO_DATA_LEN_RANGE)
1096 				rv = CRYPTO_ENCRYPTED_DATA_LEN_RANGE;
1097 		}
1098 	} else {
1099 		if (des_ctx->dc_flags & CBC_MODE) {
1100 			rv = cbc_decrypt_contiguous_blocks(ctx, data,
1101 			    length, out, DES_BLOCK_LEN, des_decrypt_block,
1102 			    des_copy_block, des_xor_block);
1103 		} else {
1104 			rv = ecb_cipher_contiguous_blocks(ctx, data, length,
1105 			    out, DES_BLOCK_LEN, des_decrypt_block);
1106 			if (rv == CRYPTO_DATA_LEN_RANGE)
1107 				rv = CRYPTO_ENCRYPTED_DATA_LEN_RANGE;
1108 		}
1109 	}
1110 	return (rv);
1111 }
1112