GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/crypt/blowfish.c Lines: 0 143 0.0 %
Date: 2017-11-13 Branches: 0 38 0.0 %

Line Branch Exec Source
1
/* $OpenBSD: blowfish.c,v 1.19 2015/09/11 09:18:27 guenther Exp $ */
2
/*
3
 * Blowfish block cipher for OpenBSD
4
 * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
5
 * All rights reserved.
6
 *
7
 * Implementation advice by David Mazieres <dm@lcs.mit.edu>.
8
 *
9
 * Redistribution and use in source and binary forms, with or without
10
 * modification, are permitted provided that the following conditions
11
 * are met:
12
 * 1. Redistributions of source code must retain the above copyright
13
 *    notice, this list of conditions and the following disclaimer.
14
 * 2. Redistributions in binary form must reproduce the above copyright
15
 *    notice, this list of conditions and the following disclaimer in the
16
 *    documentation and/or other materials provided with the distribution.
17
 * 3. All advertising materials mentioning features or use of this software
18
 *    must display the following acknowledgement:
19
 *      This product includes software developed by Niels Provos.
20
 * 4. The name of the author may not be used to endorse or promote products
21
 *    derived from this software without specific prior written permission.
22
 *
23
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33
 */
34
35
/*
36
 * This code is derived from section 14.3 and the given source
37
 * in section V of Applied Cryptography, second edition.
38
 * Blowfish is an unpatented fast block cipher designed by
39
 * Bruce Schneier.
40
 */
41
42
#if 0
43
#include <stdio.h>		/* used for debugging */
44
#include <string.h>
45
#endif
46
47
#include <sys/types.h>
48
#include <blf.h>
49
50
#undef inline
51
#ifdef __GNUC__
52
#define inline __inline
53
#else				/* !__GNUC__ */
54
#define inline
55
#endif				/* !__GNUC__ */
56
57
/* Function for Feistel Networks */
58
59
#define F(s, x) ((((s)[        (((x)>>24)&0xFF)]  \
60
		 + (s)[0x100 + (((x)>>16)&0xFF)]) \
61
		 ^ (s)[0x200 + (((x)>> 8)&0xFF)]) \
62
		 + (s)[0x300 + ( (x)     &0xFF)])
63
64
#define BLFRND(s,p,i,j,n) (i ^= F(s,j) ^ (p)[n])
65
66
void
67
Blowfish_encipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
68
{
69
	u_int32_t Xl;
70
	u_int32_t Xr;
71
	u_int32_t *s = c->S[0];
72
	u_int32_t *p = c->P;
73
74
	Xl = *xl;
75
	Xr = *xr;
76
77
	Xl ^= p[0];
78
	BLFRND(s, p, Xr, Xl, 1); BLFRND(s, p, Xl, Xr, 2);
79
	BLFRND(s, p, Xr, Xl, 3); BLFRND(s, p, Xl, Xr, 4);
80
	BLFRND(s, p, Xr, Xl, 5); BLFRND(s, p, Xl, Xr, 6);
81
	BLFRND(s, p, Xr, Xl, 7); BLFRND(s, p, Xl, Xr, 8);
82
	BLFRND(s, p, Xr, Xl, 9); BLFRND(s, p, Xl, Xr, 10);
83
	BLFRND(s, p, Xr, Xl, 11); BLFRND(s, p, Xl, Xr, 12);
84
	BLFRND(s, p, Xr, Xl, 13); BLFRND(s, p, Xl, Xr, 14);
85
	BLFRND(s, p, Xr, Xl, 15); BLFRND(s, p, Xl, Xr, 16);
86
87
	*xl = Xr ^ p[17];
88
	*xr = Xl;
89
}
90
DEF_WEAK(Blowfish_encipher);
91
92
void
93
Blowfish_decipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
94
{
95
	u_int32_t Xl;
96
	u_int32_t Xr;
97
	u_int32_t *s = c->S[0];
98
	u_int32_t *p = c->P;
99
100
	Xl = *xl;
101
	Xr = *xr;
102
103
	Xl ^= p[17];
104
	BLFRND(s, p, Xr, Xl, 16); BLFRND(s, p, Xl, Xr, 15);
105
	BLFRND(s, p, Xr, Xl, 14); BLFRND(s, p, Xl, Xr, 13);
106
	BLFRND(s, p, Xr, Xl, 12); BLFRND(s, p, Xl, Xr, 11);
107
	BLFRND(s, p, Xr, Xl, 10); BLFRND(s, p, Xl, Xr, 9);
108
	BLFRND(s, p, Xr, Xl, 8); BLFRND(s, p, Xl, Xr, 7);
109
	BLFRND(s, p, Xr, Xl, 6); BLFRND(s, p, Xl, Xr, 5);
110
	BLFRND(s, p, Xr, Xl, 4); BLFRND(s, p, Xl, Xr, 3);
111
	BLFRND(s, p, Xr, Xl, 2); BLFRND(s, p, Xl, Xr, 1);
112
113
	*xl = Xr ^ p[0];
114
	*xr = Xl;
115
}
116
DEF_WEAK(Blowfish_decipher);
117
118
void
119
Blowfish_initstate(blf_ctx *c)
120
{
121
	/* P-box and S-box tables initialized with digits of Pi */
122
123
	static const blf_ctx initstate =
124
	{ {
125
		{
126
			0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
127
			0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
128
			0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
129
			0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
130
			0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
131
			0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
132
			0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
133
			0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
134
			0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
135
			0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
136
			0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
137
			0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
138
			0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
139
			0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
140
			0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
141
			0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
142
			0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
143
			0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
144
			0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
145
			0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
146
			0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
147
			0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
148
			0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
149
			0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
150
			0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
151
			0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
152
			0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
153
			0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
154
			0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
155
			0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
156
			0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
157
			0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
158
			0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
159
			0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
160
			0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
161
			0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
162
			0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
163
			0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
164
			0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
165
			0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
166
			0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
167
			0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
168
			0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
169
			0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
170
			0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
171
			0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
172
			0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
173
			0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
174
			0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
175
			0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
176
			0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
177
			0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
178
			0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
179
			0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
180
			0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
181
			0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
182
			0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
183
			0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
184
			0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
185
			0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
186
			0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
187
			0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
188
			0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
189
		0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a},
190
		{
191
			0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
192
			0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
193
			0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
194
			0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
195
			0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
196
			0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
197
			0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
198
			0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
199
			0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
200
			0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
201
			0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
202
			0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
203
			0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
204
			0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
205
			0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
206
			0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
207
			0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
208
			0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
209
			0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
210
			0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
211
			0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
212
			0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
213
			0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
214
			0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
215
			0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
216
			0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
217
			0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
218
			0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
219
			0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
220
			0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
221
			0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
222
			0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
223
			0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
224
			0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
225
			0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
226
			0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
227
			0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
228
			0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
229
			0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
230
			0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
231
			0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
232
			0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
233
			0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
234
			0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
235
			0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
236
			0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
237
			0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
238
			0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
239
			0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
240
			0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
241
			0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
242
			0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
243
			0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
244
			0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
245
			0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
246
			0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
247
			0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
248
			0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
249
			0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
250
			0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
251
			0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
252
			0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
253
			0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
254
		0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7},
255
		{
256
			0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
257
			0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
258
			0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
259
			0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
260
			0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
261
			0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
262
			0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
263
			0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
264
			0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
265
			0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
266
			0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
267
			0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
268
			0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
269
			0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
270
			0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
271
			0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
272
			0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
273
			0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
274
			0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
275
			0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
276
			0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
277
			0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
278
			0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
279
			0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
280
			0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
281
			0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
282
			0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
283
			0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
284
			0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
285
			0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
286
			0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
287
			0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
288
			0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
289
			0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
290
			0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
291
			0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
292
			0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
293
			0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
294
			0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
295
			0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
296
			0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
297
			0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
298
			0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
299
			0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
300
			0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
301
			0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
302
			0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
303
			0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
304
			0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
305
			0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
306
			0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
307
			0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
308
			0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
309
			0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
310
			0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
311
			0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
312
			0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
313
			0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
314
			0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
315
			0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
316
			0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
317
			0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
318
			0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
319
		0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0},
320
		{
321
			0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
322
			0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
323
			0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
324
			0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
325
			0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
326
			0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
327
			0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
328
			0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
329
			0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
330
			0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
331
			0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
332
			0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
333
			0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
334
			0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
335
			0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
336
			0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
337
			0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
338
			0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
339
			0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
340
			0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
341
			0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
342
			0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
343
			0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
344
			0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
345
			0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
346
			0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
347
			0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
348
			0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
349
			0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
350
			0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
351
			0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
352
			0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
353
			0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
354
			0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
355
			0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
356
			0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
357
			0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
358
			0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
359
			0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
360
			0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
361
			0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
362
			0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
363
			0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
364
			0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
365
			0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
366
			0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
367
			0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
368
			0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
369
			0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
370
			0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
371
			0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
372
			0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
373
			0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
374
			0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
375
			0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
376
			0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
377
			0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
378
			0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
379
			0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
380
			0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
381
			0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
382
			0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
383
			0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
384
		0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6}
385
	},
386
	{
387
		0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
388
		0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
389
		0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
390
		0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
391
		0x9216d5d9, 0x8979fb1b
392
	} };
393
394
	*c = initstate;
395
}
396
DEF_WEAK(Blowfish_initstate);
397
398
u_int32_t
399
Blowfish_stream2word(const u_int8_t *data, u_int16_t databytes,
400
    u_int16_t *current)
401
{
402
	u_int8_t i;
403
	u_int16_t j;
404
	u_int32_t temp;
405
406
	temp = 0x00000000;
407
	j = *current;
408
409
	for (i = 0; i < 4; i++, j++) {
410
		if (j >= databytes)
411
			j = 0;
412
		temp = (temp << 8) | data[j];
413
	}
414
415
	*current = j;
416
	return temp;
417
}
418
DEF_WEAK(Blowfish_stream2word);
419
420
void
421
Blowfish_expand0state(blf_ctx *c, const u_int8_t *key, u_int16_t keybytes)
422
{
423
	u_int16_t i;
424
	u_int16_t j;
425
	u_int16_t k;
426
	u_int32_t temp;
427
	u_int32_t datal;
428
	u_int32_t datar;
429
430
	j = 0;
431
	for (i = 0; i < BLF_N + 2; i++) {
432
		/* Extract 4 int8 to 1 int32 from keystream */
433
		temp = Blowfish_stream2word(key, keybytes, &j);
434
		c->P[i] = c->P[i] ^ temp;
435
	}
436
437
	j = 0;
438
	datal = 0x00000000;
439
	datar = 0x00000000;
440
	for (i = 0; i < BLF_N + 2; i += 2) {
441
		Blowfish_encipher(c, &datal, &datar);
442
443
		c->P[i] = datal;
444
		c->P[i + 1] = datar;
445
	}
446
447
	for (i = 0; i < 4; i++) {
448
		for (k = 0; k < 256; k += 2) {
449
			Blowfish_encipher(c, &datal, &datar);
450
451
			c->S[i][k] = datal;
452
			c->S[i][k + 1] = datar;
453
		}
454
	}
455
}
456
DEF_WEAK(Blowfish_expand0state);
457
458
459
void
460
Blowfish_expandstate(blf_ctx *c, const u_int8_t *data, u_int16_t databytes,
461
    const u_int8_t *key, u_int16_t keybytes)
462
{
463
	u_int16_t i;
464
	u_int16_t j;
465
	u_int16_t k;
466
	u_int32_t temp;
467
	u_int32_t datal;
468
	u_int32_t datar;
469
470
	j = 0;
471
	for (i = 0; i < BLF_N + 2; i++) {
472
		/* Extract 4 int8 to 1 int32 from keystream */
473
		temp = Blowfish_stream2word(key, keybytes, &j);
474
		c->P[i] = c->P[i] ^ temp;
475
	}
476
477
	j = 0;
478
	datal = 0x00000000;
479
	datar = 0x00000000;
480
	for (i = 0; i < BLF_N + 2; i += 2) {
481
		datal ^= Blowfish_stream2word(data, databytes, &j);
482
		datar ^= Blowfish_stream2word(data, databytes, &j);
483
		Blowfish_encipher(c, &datal, &datar);
484
485
		c->P[i] = datal;
486
		c->P[i + 1] = datar;
487
	}
488
489
	for (i = 0; i < 4; i++) {
490
		for (k = 0; k < 256; k += 2) {
491
			datal ^= Blowfish_stream2word(data, databytes, &j);
492
			datar ^= Blowfish_stream2word(data, databytes, &j);
493
			Blowfish_encipher(c, &datal, &datar);
494
495
			c->S[i][k] = datal;
496
			c->S[i][k + 1] = datar;
497
		}
498
	}
499
500
}
501
DEF_WEAK(Blowfish_expandstate);
502
503
void
504
blf_key(blf_ctx *c, const u_int8_t *k, u_int16_t len)
505
{
506
	/* Initialize S-boxes and subkeys with Pi */
507
	Blowfish_initstate(c);
508
509
	/* Transform S-boxes and subkeys with key */
510
	Blowfish_expand0state(c, k, len);
511
}
512
DEF_WEAK(blf_key);
513
514
void
515
blf_enc(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
516
{
517
	u_int32_t *d;
518
	u_int16_t i;
519
520
	d = data;
521
	for (i = 0; i < blocks; i++) {
522
		Blowfish_encipher(c, d, d + 1);
523
		d += 2;
524
	}
525
}
526
DEF_WEAK(blf_enc);
527
528
void
529
blf_dec(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
530
{
531
	u_int32_t *d;
532
	u_int16_t i;
533
534
	d = data;
535
	for (i = 0; i < blocks; i++) {
536
		Blowfish_decipher(c, d, d + 1);
537
		d += 2;
538
	}
539
}
540
DEF_WEAK(blf_dec);
541
542
void
543
blf_ecb_encrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
544
{
545
	u_int32_t l, r;
546
	u_int32_t i;
547
548
	for (i = 0; i < len; i += 8) {
549
		l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
550
		r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
551
		Blowfish_encipher(c, &l, &r);
552
		data[0] = l >> 24 & 0xff;
553
		data[1] = l >> 16 & 0xff;
554
		data[2] = l >> 8 & 0xff;
555
		data[3] = l & 0xff;
556
		data[4] = r >> 24 & 0xff;
557
		data[5] = r >> 16 & 0xff;
558
		data[6] = r >> 8 & 0xff;
559
		data[7] = r & 0xff;
560
		data += 8;
561
	}
562
}
563
DEF_WEAK(blf_ecb_encrypt);
564
565
void
566
blf_ecb_decrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
567
{
568
	u_int32_t l, r;
569
	u_int32_t i;
570
571
	for (i = 0; i < len; i += 8) {
572
		l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
573
		r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
574
		Blowfish_decipher(c, &l, &r);
575
		data[0] = l >> 24 & 0xff;
576
		data[1] = l >> 16 & 0xff;
577
		data[2] = l >> 8 & 0xff;
578
		data[3] = l & 0xff;
579
		data[4] = r >> 24 & 0xff;
580
		data[5] = r >> 16 & 0xff;
581
		data[6] = r >> 8 & 0xff;
582
		data[7] = r & 0xff;
583
		data += 8;
584
	}
585
}
586
DEF_WEAK(blf_ecb_decrypt);
587
588
void
589
blf_cbc_encrypt(blf_ctx *c, u_int8_t *iv, u_int8_t *data, u_int32_t len)
590
{
591
	u_int32_t l, r;
592
	u_int32_t i, j;
593
594
	for (i = 0; i < len; i += 8) {
595
		for (j = 0; j < 8; j++)
596
			data[j] ^= iv[j];
597
		l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
598
		r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
599
		Blowfish_encipher(c, &l, &r);
600
		data[0] = l >> 24 & 0xff;
601
		data[1] = l >> 16 & 0xff;
602
		data[2] = l >> 8 & 0xff;
603
		data[3] = l & 0xff;
604
		data[4] = r >> 24 & 0xff;
605
		data[5] = r >> 16 & 0xff;
606
		data[6] = r >> 8 & 0xff;
607
		data[7] = r & 0xff;
608
		iv = data;
609
		data += 8;
610
	}
611
}
612
DEF_WEAK(blf_cbc_encrypt);
613
614
void
615
blf_cbc_decrypt(blf_ctx *c, u_int8_t *iva, u_int8_t *data, u_int32_t len)
616
{
617
	u_int32_t l, r;
618
	u_int8_t *iv;
619
	u_int32_t i, j;
620
621
	iv = data + len - 16;
622
	data = data + len - 8;
623
	for (i = len - 8; i >= 8; i -= 8) {
624
		l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
625
		r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
626
		Blowfish_decipher(c, &l, &r);
627
		data[0] = l >> 24 & 0xff;
628
		data[1] = l >> 16 & 0xff;
629
		data[2] = l >> 8 & 0xff;
630
		data[3] = l & 0xff;
631
		data[4] = r >> 24 & 0xff;
632
		data[5] = r >> 16 & 0xff;
633
		data[6] = r >> 8 & 0xff;
634
		data[7] = r & 0xff;
635
		for (j = 0; j < 8; j++)
636
			data[j] ^= iv[j];
637
		iv -= 8;
638
		data -= 8;
639
	}
640
	l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
641
	r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
642
	Blowfish_decipher(c, &l, &r);
643
	data[0] = l >> 24 & 0xff;
644
	data[1] = l >> 16 & 0xff;
645
	data[2] = l >> 8 & 0xff;
646
	data[3] = l & 0xff;
647
	data[4] = r >> 24 & 0xff;
648
	data[5] = r >> 16 & 0xff;
649
	data[6] = r >> 8 & 0xff;
650
	data[7] = r & 0xff;
651
	for (j = 0; j < 8; j++)
652
		data[j] ^= iva[j];
653
}
654
DEF_WEAK(blf_cbc_decrypt);
655
656
#if 0
657
void
658
report(u_int32_t data[], u_int16_t len)
659
{
660
	u_int16_t i;
661
	for (i = 0; i < len; i += 2)
662
		printf("Block %0hd: %08lx %08lx.\n",
663
		    i / 2, data[i], data[i + 1]);
664
}
665
void
666
main(void)
667
{
668
669
	blf_ctx c;
670
	char    key[] = "AAAAA";
671
	char    key2[] = "abcdefghijklmnopqrstuvwxyz";
672
673
	u_int32_t data[10];
674
	u_int32_t data2[] =
675
	{0x424c4f57l, 0x46495348l};
676
677
	u_int16_t i;
678
679
	/* First test */
680
	for (i = 0; i < 10; i++)
681
		data[i] = i;
682
683
	blf_key(&c, (u_int8_t *) key, 5);
684
	blf_enc(&c, data, 5);
685
	blf_dec(&c, data, 1);
686
	blf_dec(&c, data + 2, 4);
687
	printf("Should read as 0 - 9.\n");
688
	report(data, 10);
689
690
	/* Second test */
691
	blf_key(&c, (u_int8_t *) key2, strlen(key2));
692
	blf_enc(&c, data2, 1);
693
	printf("\nShould read as: 0x324ed0fe 0xf413a203.\n");
694
	report(data2, 2);
695
	blf_dec(&c, data2, 1);
696
	report(data2, 2);
697
}
698
#endif