xref: /illumos-gate/usr/src/common/crypto/blowfish/blowfish_impl.c (revision 694c35faa87b858ecdadfe4fc592615f4eefbb07)
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 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * Blowfish encryption/decryption and keyschedule code.
28  */
29 
30 #include <sys/types.h>
31 #include <sys/systm.h>
32 #include <sys/ddi.h>
33 #include <sys/sysmacros.h>
34 #include <sys/strsun.h>
35 #include <sys/note.h>
36 #include <sys/byteorder.h>
37 #include <sys/crypto/spi.h>
38 #include <modes/modes.h>
39 #include <sys/crypto/common.h>
40 #include "blowfish_impl.h"
41 
42 #ifdef _KERNEL
43 
44 #define	BLOWFISH_ASSERT(x)	ASSERT(x)
45 
46 #else /* !_KERNEL */
47 
48 #include <strings.h>
49 #include <stdlib.h>
50 #define	BLOWFISH_ASSERT(x)
51 #endif /* _KERNEL */
52 
53 #if defined(__i386) || defined(__amd64)
54 #include <sys/byteorder.h>
55 #define	UNALIGNED_POINTERS_PERMITTED
56 #endif
57 
58 /*
59  * Blowfish initial P box and S boxes, derived from the hex digits of PI.
60  *
61  * NOTE:  S boxes are placed into one large array.
62  */
63 static const uint32_t init_P[] = {
64 	0x243f6a88U, 0x85a308d3U, 0x13198a2eU,
65 	0x03707344U, 0xa4093822U, 0x299f31d0U,
66 	0x082efa98U, 0xec4e6c89U, 0x452821e6U,
67 	0x38d01377U, 0xbe5466cfU, 0x34e90c6cU,
68 	0xc0ac29b7U, 0xc97c50ddU, 0x3f84d5b5U,
69 	0xb5470917U, 0x9216d5d9U, 0x8979fb1bU
70 };
71 
72 static const uint32_t init_S[] = {
73 	/* S-Box 0. */
74 	0xd1310ba6U, 0x98dfb5acU, 0x2ffd72dbU, 0xd01adfb7U,
75 	0xb8e1afedU, 0x6a267e96U, 0xba7c9045U, 0xf12c7f99U,
76 	0x24a19947U, 0xb3916cf7U, 0x0801f2e2U, 0x858efc16U,
77 	0x636920d8U, 0x71574e69U, 0xa458fea3U, 0xf4933d7eU,
78 	0x0d95748fU, 0x728eb658U, 0x718bcd58U, 0x82154aeeU,
79 	0x7b54a41dU, 0xc25a59b5U, 0x9c30d539U, 0x2af26013U,
80 	0xc5d1b023U, 0x286085f0U, 0xca417918U, 0xb8db38efU,
81 	0x8e79dcb0U, 0x603a180eU, 0x6c9e0e8bU, 0xb01e8a3eU,
82 	0xd71577c1U, 0xbd314b27U, 0x78af2fdaU, 0x55605c60U,
83 	0xe65525f3U, 0xaa55ab94U, 0x57489862U, 0x63e81440U,
84 	0x55ca396aU, 0x2aab10b6U, 0xb4cc5c34U, 0x1141e8ceU,
85 	0xa15486afU, 0x7c72e993U, 0xb3ee1411U, 0x636fbc2aU,
86 	0x2ba9c55dU, 0x741831f6U, 0xce5c3e16U, 0x9b87931eU,
87 	0xafd6ba33U, 0x6c24cf5cU, 0x7a325381U, 0x28958677U,
88 	0x3b8f4898U, 0x6b4bb9afU, 0xc4bfe81bU, 0x66282193U,
89 	0x61d809ccU, 0xfb21a991U, 0x487cac60U, 0x5dec8032U,
90 	0xef845d5dU, 0xe98575b1U, 0xdc262302U, 0xeb651b88U,
91 	0x23893e81U, 0xd396acc5U, 0x0f6d6ff3U, 0x83f44239U,
92 	0x2e0b4482U, 0xa4842004U, 0x69c8f04aU, 0x9e1f9b5eU,
93 	0x21c66842U, 0xf6e96c9aU, 0x670c9c61U, 0xabd388f0U,
94 	0x6a51a0d2U, 0xd8542f68U, 0x960fa728U, 0xab5133a3U,
95 	0x6eef0b6cU, 0x137a3be4U, 0xba3bf050U, 0x7efb2a98U,
96 	0xa1f1651dU, 0x39af0176U, 0x66ca593eU, 0x82430e88U,
97 	0x8cee8619U, 0x456f9fb4U, 0x7d84a5c3U, 0x3b8b5ebeU,
98 	0xe06f75d8U, 0x85c12073U, 0x401a449fU, 0x56c16aa6U,
99 	0x4ed3aa62U, 0x363f7706U, 0x1bfedf72U, 0x429b023dU,
100 	0x37d0d724U, 0xd00a1248U, 0xdb0fead3U, 0x49f1c09bU,
101 	0x075372c9U, 0x80991b7bU, 0x25d479d8U, 0xf6e8def7U,
102 	0xe3fe501aU, 0xb6794c3bU, 0x976ce0bdU, 0x04c006baU,
103 	0xc1a94fb6U, 0x409f60c4U, 0x5e5c9ec2U, 0x196a2463U,
104 	0x68fb6fafU, 0x3e6c53b5U, 0x1339b2ebU, 0x3b52ec6fU,
105 	0x6dfc511fU, 0x9b30952cU, 0xcc814544U, 0xaf5ebd09U,
106 	0xbee3d004U, 0xde334afdU, 0x660f2807U, 0x192e4bb3U,
107 	0xc0cba857U, 0x45c8740fU, 0xd20b5f39U, 0xb9d3fbdbU,
108 	0x5579c0bdU, 0x1a60320aU, 0xd6a100c6U, 0x402c7279U,
109 	0x679f25feU, 0xfb1fa3ccU, 0x8ea5e9f8U, 0xdb3222f8U,
110 	0x3c7516dfU, 0xfd616b15U, 0x2f501ec8U, 0xad0552abU,
111 	0x323db5faU, 0xfd238760U, 0x53317b48U, 0x3e00df82U,
112 	0x9e5c57bbU, 0xca6f8ca0U, 0x1a87562eU, 0xdf1769dbU,
113 	0xd542a8f6U, 0x287effc3U, 0xac6732c6U, 0x8c4f5573U,
114 	0x695b27b0U, 0xbbca58c8U, 0xe1ffa35dU, 0xb8f011a0U,
115 	0x10fa3d98U, 0xfd2183b8U, 0x4afcb56cU, 0x2dd1d35bU,
116 	0x9a53e479U, 0xb6f84565U, 0xd28e49bcU, 0x4bfb9790U,
117 	0xe1ddf2daU, 0xa4cb7e33U, 0x62fb1341U, 0xcee4c6e8U,
118 	0xef20cadaU, 0x36774c01U, 0xd07e9efeU, 0x2bf11fb4U,
119 	0x95dbda4dU, 0xae909198U, 0xeaad8e71U, 0x6b93d5a0U,
120 	0xd08ed1d0U, 0xafc725e0U, 0x8e3c5b2fU, 0x8e7594b7U,
121 	0x8ff6e2fbU, 0xf2122b64U, 0x8888b812U, 0x900df01cU,
122 	0x4fad5ea0U, 0x688fc31cU, 0xd1cff191U, 0xb3a8c1adU,
123 	0x2f2f2218U, 0xbe0e1777U, 0xea752dfeU, 0x8b021fa1U,
124 	0xe5a0cc0fU, 0xb56f74e8U, 0x18acf3d6U, 0xce89e299U,
125 	0xb4a84fe0U, 0xfd13e0b7U, 0x7cc43b81U, 0xd2ada8d9U,
126 	0x165fa266U, 0x80957705U, 0x93cc7314U, 0x211a1477U,
127 	0xe6ad2065U, 0x77b5fa86U, 0xc75442f5U, 0xfb9d35cfU,
128 	0xebcdaf0cU, 0x7b3e89a0U, 0xd6411bd3U, 0xae1e7e49U,
129 	0x00250e2dU, 0x2071b35eU, 0x226800bbU, 0x57b8e0afU,
130 	0x2464369bU, 0xf009b91eU, 0x5563911dU, 0x59dfa6aaU,
131 	0x78c14389U, 0xd95a537fU, 0x207d5ba2U, 0x02e5b9c5U,
132 	0x83260376U, 0x6295cfa9U, 0x11c81968U, 0x4e734a41U,
133 	0xb3472dcaU, 0x7b14a94aU, 0x1b510052U, 0x9a532915U,
134 	0xd60f573fU, 0xbc9bc6e4U, 0x2b60a476U, 0x81e67400U,
135 	0x08ba6fb5U, 0x571be91fU, 0xf296ec6bU, 0x2a0dd915U,
136 	0xb6636521U, 0xe7b9f9b6U, 0xff34052eU, 0xc5855664U,
137 	0x53b02d5dU, 0xa99f8fa1U, 0x08ba4799U, 0x6e85076aU,
138 
139 	/* S-Box 1. */
140 	0x4b7a70e9U, 0xb5b32944U, 0xdb75092eU, 0xc4192623U,
141 	0xad6ea6b0U, 0x49a7df7dU, 0x9cee60b8U, 0x8fedb266U,
142 	0xecaa8c71U, 0x699a17ffU, 0x5664526cU, 0xc2b19ee1U,
143 	0x193602a5U, 0x75094c29U, 0xa0591340U, 0xe4183a3eU,
144 	0x3f54989aU, 0x5b429d65U, 0x6b8fe4d6U, 0x99f73fd6U,
145 	0xa1d29c07U, 0xefe830f5U, 0x4d2d38e6U, 0xf0255dc1U,
146 	0x4cdd2086U, 0x8470eb26U, 0x6382e9c6U, 0x021ecc5eU,
147 	0x09686b3fU, 0x3ebaefc9U, 0x3c971814U, 0x6b6a70a1U,
148 	0x687f3584U, 0x52a0e286U, 0xb79c5305U, 0xaa500737U,
149 	0x3e07841cU, 0x7fdeae5cU, 0x8e7d44ecU, 0x5716f2b8U,
150 	0xb03ada37U, 0xf0500c0dU, 0xf01c1f04U, 0x0200b3ffU,
151 	0xae0cf51aU, 0x3cb574b2U, 0x25837a58U, 0xdc0921bdU,
152 	0xd19113f9U, 0x7ca92ff6U, 0x94324773U, 0x22f54701U,
153 	0x3ae5e581U, 0x37c2dadcU, 0xc8b57634U, 0x9af3dda7U,
154 	0xa9446146U, 0x0fd0030eU, 0xecc8c73eU, 0xa4751e41U,
155 	0xe238cd99U, 0x3bea0e2fU, 0x3280bba1U, 0x183eb331U,
156 	0x4e548b38U, 0x4f6db908U, 0x6f420d03U, 0xf60a04bfU,
157 	0x2cb81290U, 0x24977c79U, 0x5679b072U, 0xbcaf89afU,
158 	0xde9a771fU, 0xd9930810U, 0xb38bae12U, 0xdccf3f2eU,
159 	0x5512721fU, 0x2e6b7124U, 0x501adde6U, 0x9f84cd87U,
160 	0x7a584718U, 0x7408da17U, 0xbc9f9abcU, 0xe94b7d8cU,
161 	0xec7aec3aU, 0xdb851dfaU, 0x63094366U, 0xc464c3d2U,
162 	0xef1c1847U, 0x3215d908U, 0xdd433b37U, 0x24c2ba16U,
163 	0x12a14d43U, 0x2a65c451U, 0x50940002U, 0x133ae4ddU,
164 	0x71dff89eU, 0x10314e55U, 0x81ac77d6U, 0x5f11199bU,
165 	0x043556f1U, 0xd7a3c76bU, 0x3c11183bU, 0x5924a509U,
166 	0xf28fe6edU, 0x97f1fbfaU, 0x9ebabf2cU, 0x1e153c6eU,
167 	0x86e34570U, 0xeae96fb1U, 0x860e5e0aU, 0x5a3e2ab3U,
168 	0x771fe71cU, 0x4e3d06faU, 0x2965dcb9U, 0x99e71d0fU,
169 	0x803e89d6U, 0x5266c825U, 0x2e4cc978U, 0x9c10b36aU,
170 	0xc6150ebaU, 0x94e2ea78U, 0xa5fc3c53U, 0x1e0a2df4U,
171 	0xf2f74ea7U, 0x361d2b3dU, 0x1939260fU, 0x19c27960U,
172 	0x5223a708U, 0xf71312b6U, 0xebadfe6eU, 0xeac31f66U,
173 	0xe3bc4595U, 0xa67bc883U, 0xb17f37d1U, 0x018cff28U,
174 	0xc332ddefU, 0xbe6c5aa5U, 0x65582185U, 0x68ab9802U,
175 	0xeecea50fU, 0xdb2f953bU, 0x2aef7dadU, 0x5b6e2f84U,
176 	0x1521b628U, 0x29076170U, 0xecdd4775U, 0x619f1510U,
177 	0x13cca830U, 0xeb61bd96U, 0x0334fe1eU, 0xaa0363cfU,
178 	0xb5735c90U, 0x4c70a239U, 0xd59e9e0bU, 0xcbaade14U,
179 	0xeecc86bcU, 0x60622ca7U, 0x9cab5cabU, 0xb2f3846eU,
180 	0x648b1eafU, 0x19bdf0caU, 0xa02369b9U, 0x655abb50U,
181 	0x40685a32U, 0x3c2ab4b3U, 0x319ee9d5U, 0xc021b8f7U,
182 	0x9b540b19U, 0x875fa099U, 0x95f7997eU, 0x623d7da8U,
183 	0xf837889aU, 0x97e32d77U, 0x11ed935fU, 0x16681281U,
184 	0x0e358829U, 0xc7e61fd6U, 0x96dedfa1U, 0x7858ba99U,
185 	0x57f584a5U, 0x1b227263U, 0x9b83c3ffU, 0x1ac24696U,
186 	0xcdb30aebU, 0x532e3054U, 0x8fd948e4U, 0x6dbc3128U,
187 	0x58ebf2efU, 0x34c6ffeaU, 0xfe28ed61U, 0xee7c3c73U,
188 	0x5d4a14d9U, 0xe864b7e3U, 0x42105d14U, 0x203e13e0U,
189 	0x45eee2b6U, 0xa3aaabeaU, 0xdb6c4f15U, 0xfacb4fd0U,
190 	0xc742f442U, 0xef6abbb5U, 0x654f3b1dU, 0x41cd2105U,
191 	0xd81e799eU, 0x86854dc7U, 0xe44b476aU, 0x3d816250U,
192 	0xcf62a1f2U, 0x5b8d2646U, 0xfc8883a0U, 0xc1c7b6a3U,
193 	0x7f1524c3U, 0x69cb7492U, 0x47848a0bU, 0x5692b285U,
194 	0x095bbf00U, 0xad19489dU, 0x1462b174U, 0x23820e00U,
195 	0x58428d2aU, 0x0c55f5eaU, 0x1dadf43eU, 0x233f7061U,
196 	0x3372f092U, 0x8d937e41U, 0xd65fecf1U, 0x6c223bdbU,
197 	0x7cde3759U, 0xcbee7460U, 0x4085f2a7U, 0xce77326eU,
198 	0xa6078084U, 0x19f8509eU, 0xe8efd855U, 0x61d99735U,
199 	0xa969a7aaU, 0xc50c06c2U, 0x5a04abfcU, 0x800bcadcU,
200 	0x9e447a2eU, 0xc3453484U, 0xfdd56705U, 0x0e1e9ec9U,
201 	0xdb73dbd3U, 0x105588cdU, 0x675fda79U, 0xe3674340U,
202 	0xc5c43465U, 0x713e38d8U, 0x3d28f89eU, 0xf16dff20U,
203 	0x153e21e7U, 0x8fb03d4aU, 0xe6e39f2bU, 0xdb83adf7U,
204 
205 	/* S-Box 2. */
206 	0xe93d5a68U, 0x948140f7U, 0xf64c261cU, 0x94692934U,
207 	0x411520f7U, 0x7602d4f7U, 0xbcf46b2eU, 0xd4a20068U,
208 	0xd4082471U, 0x3320f46aU, 0x43b7d4b7U, 0x500061afU,
209 	0x1e39f62eU, 0x97244546U, 0x14214f74U, 0xbf8b8840U,
210 	0x4d95fc1dU, 0x96b591afU, 0x70f4ddd3U, 0x66a02f45U,
211 	0xbfbc09ecU, 0x03bd9785U, 0x7fac6dd0U, 0x31cb8504U,
212 	0x96eb27b3U, 0x55fd3941U, 0xda2547e6U, 0xabca0a9aU,
213 	0x28507825U, 0x530429f4U, 0x0a2c86daU, 0xe9b66dfbU,
214 	0x68dc1462U, 0xd7486900U, 0x680ec0a4U, 0x27a18deeU,
215 	0x4f3ffea2U, 0xe887ad8cU, 0xb58ce006U, 0x7af4d6b6U,
216 	0xaace1e7cU, 0xd3375fecU, 0xce78a399U, 0x406b2a42U,
217 	0x20fe9e35U, 0xd9f385b9U, 0xee39d7abU, 0x3b124e8bU,
218 	0x1dc9faf7U, 0x4b6d1856U, 0x26a36631U, 0xeae397b2U,
219 	0x3a6efa74U, 0xdd5b4332U, 0x6841e7f7U, 0xca7820fbU,
220 	0xfb0af54eU, 0xd8feb397U, 0x454056acU, 0xba489527U,
221 	0x55533a3aU, 0x20838d87U, 0xfe6ba9b7U, 0xd096954bU,
222 	0x55a867bcU, 0xa1159a58U, 0xcca92963U, 0x99e1db33U,
223 	0xa62a4a56U, 0x3f3125f9U, 0x5ef47e1cU, 0x9029317cU,
224 	0xfdf8e802U, 0x04272f70U, 0x80bb155cU, 0x05282ce3U,
225 	0x95c11548U, 0xe4c66d22U, 0x48c1133fU, 0xc70f86dcU,
226 	0x07f9c9eeU, 0x41041f0fU, 0x404779a4U, 0x5d886e17U,
227 	0x325f51ebU, 0xd59bc0d1U, 0xf2bcc18fU, 0x41113564U,
228 	0x257b7834U, 0x602a9c60U, 0xdff8e8a3U, 0x1f636c1bU,
229 	0x0e12b4c2U, 0x02e1329eU, 0xaf664fd1U, 0xcad18115U,
230 	0x6b2395e0U, 0x333e92e1U, 0x3b240b62U, 0xeebeb922U,
231 	0x85b2a20eU, 0xe6ba0d99U, 0xde720c8cU, 0x2da2f728U,
232 	0xd0127845U, 0x95b794fdU, 0x647d0862U, 0xe7ccf5f0U,
233 	0x5449a36fU, 0x877d48faU, 0xc39dfd27U, 0xf33e8d1eU,
234 	0x0a476341U, 0x992eff74U, 0x3a6f6eabU, 0xf4f8fd37U,
235 	0xa812dc60U, 0xa1ebddf8U, 0x991be14cU, 0xdb6e6b0dU,
236 	0xc67b5510U, 0x6d672c37U, 0x2765d43bU, 0xdcd0e804U,
237 	0xf1290dc7U, 0xcc00ffa3U, 0xb5390f92U, 0x690fed0bU,
238 	0x667b9ffbU, 0xcedb7d9cU, 0xa091cf0bU, 0xd9155ea3U,
239 	0xbb132f88U, 0x515bad24U, 0x7b9479bfU, 0x763bd6ebU,
240 	0x37392eb3U, 0xcc115979U, 0x8026e297U, 0xf42e312dU,
241 	0x6842ada7U, 0xc66a2b3bU, 0x12754cccU, 0x782ef11cU,
242 	0x6a124237U, 0xb79251e7U, 0x06a1bbe6U, 0x4bfb6350U,
243 	0x1a6b1018U, 0x11caedfaU, 0x3d25bdd8U, 0xe2e1c3c9U,
244 	0x44421659U, 0x0a121386U, 0xd90cec6eU, 0xd5abea2aU,
245 	0x64af674eU, 0xda86a85fU, 0xbebfe988U, 0x64e4c3feU,
246 	0x9dbc8057U, 0xf0f7c086U, 0x60787bf8U, 0x6003604dU,
247 	0xd1fd8346U, 0xf6381fb0U, 0x7745ae04U, 0xd736fcccU,
248 	0x83426b33U, 0xf01eab71U, 0xb0804187U, 0x3c005e5fU,
249 	0x77a057beU, 0xbde8ae24U, 0x55464299U, 0xbf582e61U,
250 	0x4e58f48fU, 0xf2ddfda2U, 0xf474ef38U, 0x8789bdc2U,
251 	0x5366f9c3U, 0xc8b38e74U, 0xb475f255U, 0x46fcd9b9U,
252 	0x7aeb2661U, 0x8b1ddf84U, 0x846a0e79U, 0x915f95e2U,
253 	0x466e598eU, 0x20b45770U, 0x8cd55591U, 0xc902de4cU,
254 	0xb90bace1U, 0xbb8205d0U, 0x11a86248U, 0x7574a99eU,
255 	0xb77f19b6U, 0xe0a9dc09U, 0x662d09a1U, 0xc4324633U,
256 	0xe85a1f02U, 0x09f0be8cU, 0x4a99a025U, 0x1d6efe10U,
257 	0x1ab93d1dU, 0x0ba5a4dfU, 0xa186f20fU, 0x2868f169U,
258 	0xdcb7da83U, 0x573906feU, 0xa1e2ce9bU, 0x4fcd7f52U,
259 	0x50115e01U, 0xa70683faU, 0xa002b5c4U, 0x0de6d027U,
260 	0x9af88c27U, 0x773f8641U, 0xc3604c06U, 0x61a806b5U,
261 	0xf0177a28U, 0xc0f586e0U, 0x006058aaU, 0x30dc7d62U,
262 	0x11e69ed7U, 0x2338ea63U, 0x53c2dd94U, 0xc2c21634U,
263 	0xbbcbee56U, 0x90bcb6deU, 0xebfc7da1U, 0xce591d76U,
264 	0x6f05e409U, 0x4b7c0188U, 0x39720a3dU, 0x7c927c24U,
265 	0x86e3725fU, 0x724d9db9U, 0x1ac15bb4U, 0xd39eb8fcU,
266 	0xed545578U, 0x08fca5b5U, 0xd83d7cd3U, 0x4dad0fc4U,
267 	0x1e50ef5eU, 0xb161e6f8U, 0xa28514d9U, 0x6c51133cU,
268 	0x6fd5c7e7U, 0x56e14ec4U, 0x362abfceU, 0xddc6c837U,
269 	0xd79a3234U, 0x92638212U, 0x670efa8eU, 0x406000e0U,
270 
271 	/* S-Box 3. */
272 	0x3a39ce37U, 0xd3faf5cfU, 0xabc27737U, 0x5ac52d1bU,
273 	0x5cb0679eU, 0x4fa33742U, 0xd3822740U, 0x99bc9bbeU,
274 	0xd5118e9dU, 0xbf0f7315U, 0xd62d1c7eU, 0xc700c47bU,
275 	0xb78c1b6bU, 0x21a19045U, 0xb26eb1beU, 0x6a366eb4U,
276 	0x5748ab2fU, 0xbc946e79U, 0xc6a376d2U, 0x6549c2c8U,
277 	0x530ff8eeU, 0x468dde7dU, 0xd5730a1dU, 0x4cd04dc6U,
278 	0x2939bbdbU, 0xa9ba4650U, 0xac9526e8U, 0xbe5ee304U,
279 	0xa1fad5f0U, 0x6a2d519aU, 0x63ef8ce2U, 0x9a86ee22U,
280 	0xc089c2b8U, 0x43242ef6U, 0xa51e03aaU, 0x9cf2d0a4U,
281 	0x83c061baU, 0x9be96a4dU, 0x8fe51550U, 0xba645bd6U,
282 	0x2826a2f9U, 0xa73a3ae1U, 0x4ba99586U, 0xef5562e9U,
283 	0xc72fefd3U, 0xf752f7daU, 0x3f046f69U, 0x77fa0a59U,
284 	0x80e4a915U, 0x87b08601U, 0x9b09e6adU, 0x3b3ee593U,
285 	0xe990fd5aU, 0x9e34d797U, 0x2cf0b7d9U, 0x022b8b51U,
286 	0x96d5ac3aU, 0x017da67dU, 0xd1cf3ed6U, 0x7c7d2d28U,
287 	0x1f9f25cfU, 0xadf2b89bU, 0x5ad6b472U, 0x5a88f54cU,
288 	0xe029ac71U, 0xe019a5e6U, 0x47b0acfdU, 0xed93fa9bU,
289 	0xe8d3c48dU, 0x283b57ccU, 0xf8d56629U, 0x79132e28U,
290 	0x785f0191U, 0xed756055U, 0xf7960e44U, 0xe3d35e8cU,
291 	0x15056dd4U, 0x88f46dbaU, 0x03a16125U, 0x0564f0bdU,
292 	0xc3eb9e15U, 0x3c9057a2U, 0x97271aecU, 0xa93a072aU,
293 	0x1b3f6d9bU, 0x1e6321f5U, 0xf59c66fbU, 0x26dcf319U,
294 	0x7533d928U, 0xb155fdf5U, 0x03563482U, 0x8aba3cbbU,
295 	0x28517711U, 0xc20ad9f8U, 0xabcc5167U, 0xccad925fU,
296 	0x4de81751U, 0x3830dc8eU, 0x379d5862U, 0x9320f991U,
297 	0xea7a90c2U, 0xfb3e7bceU, 0x5121ce64U, 0x774fbe32U,
298 	0xa8b6e37eU, 0xc3293d46U, 0x48de5369U, 0x6413e680U,
299 	0xa2ae0810U, 0xdd6db224U, 0x69852dfdU, 0x09072166U,
300 	0xb39a460aU, 0x6445c0ddU, 0x586cdecfU, 0x1c20c8aeU,
301 	0x5bbef7ddU, 0x1b588d40U, 0xccd2017fU, 0x6bb4e3bbU,
302 	0xdda26a7eU, 0x3a59ff45U, 0x3e350a44U, 0xbcb4cdd5U,
303 	0x72eacea8U, 0xfa6484bbU, 0x8d6612aeU, 0xbf3c6f47U,
304 	0xd29be463U, 0x542f5d9eU, 0xaec2771bU, 0xf64e6370U,
305 	0x740e0d8dU, 0xe75b1357U, 0xf8721671U, 0xaf537d5dU,
306 	0x4040cb08U, 0x4eb4e2ccU, 0x34d2466aU, 0x0115af84U,
307 	0xe1b00428U, 0x95983a1dU, 0x06b89fb4U, 0xce6ea048U,
308 	0x6f3f3b82U, 0x3520ab82U, 0x011a1d4bU, 0x277227f8U,
309 	0x611560b1U, 0xe7933fdcU, 0xbb3a792bU, 0x344525bdU,
310 	0xa08839e1U, 0x51ce794bU, 0x2f32c9b7U, 0xa01fbac9U,
311 	0xe01cc87eU, 0xbcc7d1f6U, 0xcf0111c3U, 0xa1e8aac7U,
312 	0x1a908749U, 0xd44fbd9aU, 0xd0dadecbU, 0xd50ada38U,
313 	0x0339c32aU, 0xc6913667U, 0x8df9317cU, 0xe0b12b4fU,
314 	0xf79e59b7U, 0x43f5bb3aU, 0xf2d519ffU, 0x27d9459cU,
315 	0xbf97222cU, 0x15e6fc2aU, 0x0f91fc71U, 0x9b941525U,
316 	0xfae59361U, 0xceb69cebU, 0xc2a86459U, 0x12baa8d1U,
317 	0xb6c1075eU, 0xe3056a0cU, 0x10d25065U, 0xcb03a442U,
318 	0xe0ec6e0eU, 0x1698db3bU, 0x4c98a0beU, 0x3278e964U,
319 	0x9f1f9532U, 0xe0d392dfU, 0xd3a0342bU, 0x8971f21eU,
320 	0x1b0a7441U, 0x4ba3348cU, 0xc5be7120U, 0xc37632d8U,
321 	0xdf359f8dU, 0x9b992f2eU, 0xe60b6f47U, 0x0fe3f11dU,
322 	0xe54cda54U, 0x1edad891U, 0xce6279cfU, 0xcd3e7e6fU,
323 	0x1618b166U, 0xfd2c1d05U, 0x848fd2c5U, 0xf6fb2299U,
324 	0xf523f357U, 0xa6327623U, 0x93a83531U, 0x56cccd02U,
325 	0xacf08162U, 0x5a75ebb5U, 0x6e163697U, 0x88d273ccU,
326 	0xde966292U, 0x81b949d0U, 0x4c50901bU, 0x71c65614U,
327 	0xe6c6c7bdU, 0x327a140aU, 0x45e1d006U, 0xc3f27b9aU,
328 	0xc9aa53fdU, 0x62a80f00U, 0xbb25bfe2U, 0x35bdd2f6U,
329 	0x71126905U, 0xb2040222U, 0xb6cbcf7cU, 0xcd769c2bU,
330 	0x53113ec0U, 0x1640e3d3U, 0x38abbd60U, 0x2547adf0U,
331 	0xba38209cU, 0xf746ce76U, 0x77afa1c5U, 0x20756060U,
332 	0x85cbfe4eU, 0x8ae88dd8U, 0x7aaaf9b0U, 0x4cf9aa7eU,
333 	0x1948c25cU, 0x02fb8a8cU, 0x01c36ae4U, 0xd6ebe1f9U,
334 	0x90d4f869U, 0xa65cdea0U, 0x3f09252dU, 0xc208e69fU,
335 	0xb74e6132U, 0xce77e25bU, 0x578fdfe3U, 0x3ac372e6U,
336 };
337 
338 typedef struct keysched_s {
339 	uint32_t ksch_S[1024];	/* The 4 S boxes are 256 32-bit words. */
340 	uint32_t ksch_P[18];	/* P box is 18 32-bit words. */
341 } keysched_t;
342 
343 /*
344  * Since ROUND() is a macro, make sure that the things inside can be
345  * evaluated more than once.  Especially when calling F().
346  * Assume the presence of local variables:
347  *
348  *	uint32_t *P;
349  *	uint32_t *S;
350  *	uint32_t tmp;
351  *
352  *
353  * And to Microsoft interview survivors out there, perhaps I should do the
354  * XOR swap trick, or at least #ifdef (__i386) the tmp = ... = tmp; stuff.
355  */
356 
357 #define	F(word) \
358 	(((S[(word >> 24) & 0xff] + S[256 + ((word >> 16) & 0xff)]) ^ \
359 		S[512 + ((word >> 8) & 0xff)]) + S[768 + (word & 0xff)])
360 
361 #define	ROUND(left, right, i) \
362 	(left) ^= P[i]; \
363 	(right) ^= F((left)); \
364 	tmp = (left); \
365 	(left) = (right); \
366 	(right) = tmp;
367 
368 /*
369  * Encrypt a block of data.  Because of addition operations, convert blocks
370  * to their big-endian representation, even on Intel boxen.
371  */
372 /* ARGSUSED */
373 int
blowfish_encrypt_block(const void * cookie,const uint8_t * block,uint8_t * out_block)374 blowfish_encrypt_block(const void *cookie, const uint8_t *block,
375     uint8_t *out_block)
376 {
377 	keysched_t *ksch = (keysched_t *)cookie;
378 
379 	uint32_t left, right, tmp;
380 	uint32_t *P = ksch->ksch_P;
381 	uint32_t *S = ksch->ksch_S;
382 #ifdef _BIG_ENDIAN
383 	uint32_t *b32;
384 
385 	if (IS_P2ALIGNED(block, sizeof (uint32_t))) {
386 		/* LINTED:  pointer alignment */
387 		b32 = (uint32_t *)block;
388 		left = b32[0];
389 		right = b32[1];
390 	} else
391 #endif
392 	{
393 	/*
394 	 * Read input block and place in left/right in big-endian order.
395 	 */
396 #ifdef UNALIGNED_POINTERS_PERMITTED
397 	left = htonl(*(uint32_t *)(void *)&block[0]);
398 	right = htonl(*(uint32_t *)(void *)&block[4]);
399 #else
400 	left = ((uint32_t)block[0] << 24)
401 	    | ((uint32_t)block[1] << 16)
402 	    | ((uint32_t)block[2] << 8)
403 	    | (uint32_t)block[3];
404 	right = ((uint32_t)block[4] << 24)
405 	    | ((uint32_t)block[5] << 16)
406 	    | ((uint32_t)block[6] << 8)
407 	    | (uint32_t)block[7];
408 #endif	/* UNALIGNED_POINTERS_PERMITTED */
409 	}
410 
411 	ROUND(left, right, 0);
412 	ROUND(left, right, 1);
413 	ROUND(left, right, 2);
414 	ROUND(left, right, 3);
415 	ROUND(left, right, 4);
416 	ROUND(left, right, 5);
417 	ROUND(left, right, 6);
418 	ROUND(left, right, 7);
419 	ROUND(left, right, 8);
420 	ROUND(left, right, 9);
421 	ROUND(left, right, 10);
422 	ROUND(left, right, 11);
423 	ROUND(left, right, 12);
424 	ROUND(left, right, 13);
425 	ROUND(left, right, 14);
426 	ROUND(left, right, 15);
427 
428 	tmp = left;
429 	left = right;
430 	right = tmp;
431 	right ^= P[16];
432 	left ^= P[17];
433 
434 #ifdef _BIG_ENDIAN
435 	if (IS_P2ALIGNED(out_block, sizeof (uint32_t))) {
436 		/* LINTED:  pointer alignment */
437 		b32 = (uint32_t *)out_block;
438 		b32[0] = left;
439 		b32[1] = right;
440 	} else
441 #endif
442 	{
443 		/* Put the block back into the user's block with final swap */
444 #ifdef UNALIGNED_POINTERS_PERMITTED
445 		*(uint32_t *)(void *)&out_block[0] = htonl(left);
446 		*(uint32_t *)(void *)&out_block[4] = htonl(right);
447 #else
448 		out_block[0] = left >> 24;
449 		out_block[1] = left >> 16;
450 		out_block[2] = left >> 8;
451 		out_block[3] = left;
452 		out_block[4] = right >> 24;
453 		out_block[5] = right >> 16;
454 		out_block[6] = right >> 8;
455 		out_block[7] = right;
456 #endif	/* UNALIGNED_POINTERS_PERMITTED */
457 	}
458 	return (CRYPTO_SUCCESS);
459 }
460 
461 /*
462  * Decrypt a block of data.  Because of addition operations, convert blocks
463  * to their big-endian representation, even on Intel boxen.
464  * It should look like the blowfish_encrypt_block() operation
465  * except for the order in which the S/P boxes are accessed.
466  */
467 /* ARGSUSED */
468 int
blowfish_decrypt_block(const void * cookie,const uint8_t * block,uint8_t * out_block)469 blowfish_decrypt_block(const void *cookie, const uint8_t *block,
470     uint8_t *out_block)
471 {
472 	keysched_t *ksch = (keysched_t *)cookie;
473 
474 	uint32_t left, right, tmp;
475 	uint32_t *P = ksch->ksch_P;
476 	uint32_t *S = ksch->ksch_S;
477 #ifdef _BIG_ENDIAN
478 	uint32_t *b32;
479 
480 	if (IS_P2ALIGNED(block, sizeof (uint32_t))) {
481 		/* LINTED:  pointer alignment */
482 		b32 = (uint32_t *)block;
483 		left = b32[0];
484 		right = b32[1];
485 	} else
486 #endif
487 	{
488 	/*
489 	 * Read input block and place in left/right in big-endian order.
490 	 */
491 #ifdef UNALIGNED_POINTERS_PERMITTED
492 	left = htonl(*(uint32_t *)(void *)&block[0]);
493 	right = htonl(*(uint32_t *)(void *)&block[4]);
494 #else
495 	left = ((uint32_t)block[0] << 24)
496 	    | ((uint32_t)block[1] << 16)
497 	    | ((uint32_t)block[2] << 8)
498 	    | (uint32_t)block[3];
499 	right = ((uint32_t)block[4] << 24)
500 	    | ((uint32_t)block[5] << 16)
501 	    | ((uint32_t)block[6] << 8)
502 	    | (uint32_t)block[7];
503 #endif	/* UNALIGNED_POINTERS_PERMITTED */
504 	}
505 
506 	ROUND(left, right, 17);
507 	ROUND(left, right, 16);
508 	ROUND(left, right, 15);
509 	ROUND(left, right, 14);
510 	ROUND(left, right, 13);
511 	ROUND(left, right, 12);
512 	ROUND(left, right, 11);
513 	ROUND(left, right, 10);
514 	ROUND(left, right, 9);
515 	ROUND(left, right, 8);
516 	ROUND(left, right, 7);
517 	ROUND(left, right, 6);
518 	ROUND(left, right, 5);
519 	ROUND(left, right, 4);
520 	ROUND(left, right, 3);
521 	ROUND(left, right, 2);
522 
523 	tmp = left;
524 	left = right;
525 	right = tmp;
526 	right ^= P[1];
527 	left ^= P[0];
528 
529 #ifdef _BIG_ENDIAN
530 	if (IS_P2ALIGNED(out_block, sizeof (uint32_t))) {
531 		/* LINTED:  pointer alignment */
532 		b32 = (uint32_t *)out_block;
533 		b32[0] = left;
534 		b32[1] = right;
535 	} else
536 #endif
537 	{
538 	/* Put the block back into the user's block with final swap */
539 #ifdef UNALIGNED_POINTERS_PERMITTED
540 		*(uint32_t *)(void *)&out_block[0] = htonl(left);
541 		*(uint32_t *)(void *)&out_block[4] = htonl(right);
542 #else
543 		out_block[0] = left >> 24;
544 		out_block[1] = left >> 16;
545 		out_block[2] = left >> 8;
546 		out_block[3] = left;
547 		out_block[4] = right >> 24;
548 		out_block[5] = right >> 16;
549 		out_block[6] = right >> 8;
550 		out_block[7] = right;
551 #endif	/* UNALIGNED_POINTERS_PERMITTED */
552 	}
553 	return (CRYPTO_SUCCESS);
554 }
555 
556 static void
bitrepeat(uint8_t * pattern,uint_t len_bytes,uint_t len_bits,uint8_t * dst,uint_t dst_len_bytes)557 bitrepeat(uint8_t *pattern, uint_t len_bytes, uint_t len_bits, uint8_t *dst,
558     uint_t dst_len_bytes)
559 {
560 	uint8_t *current = dst;
561 	uint_t bitsleft = CRYPTO_BYTES2BITS(dst_len_bytes);
562 	uint_t bitoffset = 0;
563 	uint_t currentbits;
564 	int i;
565 
566 	BLOWFISH_ASSERT(CRYPTO_BITS2BYTES(len_bits) == len_bytes);
567 
568 	bzero(dst, dst_len_bytes);
569 
570 	while (bitsleft != 0) {
571 		if (bitsleft >= len_bits) {
572 			currentbits = len_bits;
573 
574 			for (i = 0; i < len_bytes; i++) {
575 				if (currentbits >= 8) {
576 					*current++ |= pattern[i] >> bitoffset;
577 					*current |= pattern[i] << 8 - bitoffset;
578 					currentbits -= 8;
579 				} else {
580 					*current |= pattern[i] >> bitoffset;
581 					bitoffset = bitoffset + currentbits;
582 					bitoffset &= 0x7;
583 					if (bitoffset == 0)
584 						current++;
585 				}
586 			}
587 			bitsleft -= len_bits;
588 		} else {
589 			currentbits = bitsleft;
590 
591 			for (i = 0; i < len_bytes && bitsleft != 0; i++) {
592 				if (currentbits >= 8 &&
593 				    current < dst + dst_len_bytes) {
594 					*current++ |= pattern[i] >> bitoffset;
595 					*current |= pattern[i] << 8 - bitoffset;
596 					currentbits -= 8;
597 					bitsleft -= 8;
598 				} else {
599 					*current |= pattern[i] >> bitoffset;
600 					bitsleft -= bitoffset;
601 					bitoffset = bitoffset + currentbits;
602 					bitoffset &= 0x7;
603 					if (bitoffset == 0)
604 						current++;
605 					currentbits = 0;
606 				}
607 			}
608 			bitsleft = 0;
609 		}
610 	}
611 }
612 
613 /*
614  * Initialize key schedules for Blowfish.
615  */
616 void
blowfish_init_keysched(uint8_t * key,uint_t bits,void * keysched)617 blowfish_init_keysched(uint8_t *key, uint_t bits, void *keysched)
618 {
619 	keysched_t *newbie = keysched;
620 	uint32_t *P = newbie->ksch_P;
621 	uint32_t *S = newbie->ksch_S;
622 	uint32_t *initp;
623 	uint32_t tmpblock[] = {0, 0};
624 	uint8_t *rawkeybytes = (uint8_t *)P;
625 	int i, slop, copylen;
626 	uintptr_t bytesleft;
627 	uint_t len;
628 
629 	len = CRYPTO_BITS2BYTES(bits);
630 
631 	if ((bits & 0x7) != 0) {
632 		/*
633 		 * Really slow case, bits aren't on a byte boundary.
634 		 * Keep track of individual bits copied over.  :-P
635 		 */
636 		bitrepeat(key, len, bits, rawkeybytes, 72);
637 	} else {
638 		slop = 72 % len;
639 
640 		/* Someone gave us a nice amount (i.e. div by 8) of bits */
641 		while (rawkeybytes != (uint8_t *)(P + 18)) {
642 			bytesleft =
643 			    (uintptr_t)(P + 18) - (uintptr_t)rawkeybytes;
644 			copylen = (bytesleft >= len) ? len : slop;
645 			bcopy(key, rawkeybytes, copylen);
646 			rawkeybytes += copylen;
647 		}
648 	}
649 
650 	for (i = 0; i < 18; i++)
651 		P[i] = ntohl(P[i]) ^ init_P[i];
652 
653 	/* Go bcopy go!  (Hope that Ultra's bcopy is faster than me!) */
654 	bcopy(init_S, S, sizeof (init_S));
655 
656 	/*
657 	 * When initializing P and S boxes, store the results of a single
658 	 * encrypt-block operation in "host order", which on little-endian
659 	 * means byte-swapping.  Fortunately, the ntohl() function does this
660 	 * quite nicely, and it a NOP on big-endian machine.
661 	 */
662 	initp = P;
663 	for (i = 0; i < 9; i++) {
664 		(void) blowfish_encrypt_block(newbie, (uint8_t *)tmpblock,
665 		    (uint8_t *)tmpblock);
666 		*initp++ = ntohl(tmpblock[0]);
667 		*initp++ = ntohl(tmpblock[1]);
668 	}
669 
670 	initp = S;
671 	for (i = 0; i < 512; i++) {
672 		(void) blowfish_encrypt_block(newbie, (uint8_t *)tmpblock,
673 		    (uint8_t *)tmpblock);
674 		*initp++ = ntohl(tmpblock[0]);
675 		*initp++ = ntohl(tmpblock[1]);
676 	}
677 }
678 
679 /*
680  * Allocate key schedule for Blowfish.
681  */
682 /* ARGSUSED */
683 void *
blowfish_alloc_keysched(size_t * size,int kmflag)684 blowfish_alloc_keysched(size_t *size, int kmflag)
685 {
686 	keysched_t *keysched;
687 
688 #ifdef _KERNEL
689 	keysched = (keysched_t *)kmem_alloc(sizeof (keysched_t), kmflag);
690 #else
691 	keysched = (keysched_t *)malloc(sizeof (keysched_t));
692 #endif /* _KERNEL */
693 	if (keysched != NULL) {
694 		*size = sizeof (keysched_t);
695 		return (keysched);
696 	}
697 
698 	return (NULL);
699 }
700 
701 void
blowfish_copy_block(uint8_t * in,uint8_t * out)702 blowfish_copy_block(uint8_t *in, uint8_t *out)
703 {
704 	if (IS_P2ALIGNED(in, sizeof (uint32_t)) &&
705 	    IS_P2ALIGNED(out, sizeof (uint32_t))) {
706 		/* LINTED: pointer alignment */
707 		*(uint32_t *)&out[0] = *(uint32_t *)&in[0];
708 		/* LINTED: pointer alignment */
709 		*(uint32_t *)&out[4] = *(uint32_t *)&in[4];
710 	} else {
711 		BLOWFISH_COPY_BLOCK(in, out);
712 	}
713 }
714 
715 /* XOR block of data into dest */
716 void
blowfish_xor_block(uint8_t * data,uint8_t * dst)717 blowfish_xor_block(uint8_t *data, uint8_t *dst)
718 {
719 	if (IS_P2ALIGNED(dst, sizeof (uint32_t)) &&
720 	    IS_P2ALIGNED(data, sizeof (uint32_t))) {
721 		/* LINTED: pointer alignment */
722 		*(uint32_t *)&dst[0] ^= *(uint32_t *)&data[0];
723 		/* LINTED: pointer alignment */
724 		*(uint32_t *)&dst[4] ^= *(uint32_t *)&data[4];
725 	} else {
726 		BLOWFISH_XOR_BLOCK(data, dst);
727 	}
728 }
729 
730 /*
731  * Encrypt multiple blocks of data according to mode.
732  */
733 int
blowfish_encrypt_contiguous_blocks(void * ctx,char * data,size_t length,crypto_data_t * out)734 blowfish_encrypt_contiguous_blocks(void *ctx, char *data, size_t length,
735     crypto_data_t *out)
736 {
737 	blowfish_ctx_t *blowfish_ctx = ctx;
738 	int rv;
739 
740 	if (blowfish_ctx->bc_flags & CBC_MODE) {
741 		rv = cbc_encrypt_contiguous_blocks(ctx, data, length, out,
742 		    BLOWFISH_BLOCK_LEN, blowfish_encrypt_block,
743 		    blowfish_copy_block, blowfish_xor_block);
744 	} else {
745 		rv = ecb_cipher_contiguous_blocks(ctx, data, length, out,
746 		    BLOWFISH_BLOCK_LEN, blowfish_encrypt_block);
747 	}
748 	return (rv);
749 }
750 
751 /*
752  * Decrypt multiple blocks of data according to mode.
753  */
754 int
blowfish_decrypt_contiguous_blocks(void * ctx,char * data,size_t length,crypto_data_t * out)755 blowfish_decrypt_contiguous_blocks(void *ctx, char *data, size_t length,
756     crypto_data_t *out)
757 {
758 	blowfish_ctx_t *blowfish_ctx = ctx;
759 	int rv;
760 
761 	if (blowfish_ctx->bc_flags & CBC_MODE) {
762 		rv = cbc_decrypt_contiguous_blocks(ctx, data, length, out,
763 		    BLOWFISH_BLOCK_LEN, blowfish_decrypt_block,
764 		    blowfish_copy_block, blowfish_xor_block);
765 	} else {
766 		rv = ecb_cipher_contiguous_blocks(ctx, data, length, out,
767 		    BLOWFISH_BLOCK_LEN, blowfish_decrypt_block);
768 		if (rv == CRYPTO_DATA_LEN_RANGE)
769 			rv = CRYPTO_ENCRYPTED_DATA_LEN_RANGE;
770 	}
771 	return (rv);
772 }
773