diff options
author | Colin Watson <cjwatson@debian.org> | 2013-05-07 10:06:42 +0100 |
---|---|---|
committer | Colin Watson <cjwatson@debian.org> | 2013-05-07 10:06:42 +0100 |
commit | ecebda56da46a03dafff923d91c382f31faa9eec (patch) | |
tree | 449614b6c06a2622c74a609b31fcc46c60037c56 /acss.c | |
parent | c6a2c0334e45419875687d250aed9bea78480f2e (diff) | |
parent | ffc06452028ba78cd693d4ed43df8b60a10d6163 (diff) |
merge 6.2p1; reorder additions to monitor.h for easier merging in future
Diffstat (limited to 'acss.c')
-rw-r--r-- | acss.c | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/acss.c b/acss.c deleted file mode 100644 index 86e2c01a8..000000000 --- a/acss.c +++ /dev/null | |||
@@ -1,267 +0,0 @@ | |||
1 | /* $Id: acss.c,v 1.4 2006/07/24 04:51:01 djm Exp $ */ | ||
2 | /* | ||
3 | * Copyright (c) 2004 The OpenBSD project | ||
4 | * | ||
5 | * Permission to use, copy, modify, and distribute this software for any | ||
6 | * purpose with or without fee is hereby granted, provided that the above | ||
7 | * copyright notice and this permission notice appear in all copies. | ||
8 | * | ||
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | ||
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | ||
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | ||
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | ||
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | ||
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | ||
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | ||
16 | */ | ||
17 | |||
18 | #include "includes.h" | ||
19 | |||
20 | #include <string.h> | ||
21 | |||
22 | #include <openssl/evp.h> | ||
23 | |||
24 | #if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00906000L) | ||
25 | |||
26 | #include "acss.h" | ||
27 | |||
28 | /* decryption sbox */ | ||
29 | static unsigned char sboxdec[] = { | ||
30 | 0x33, 0x73, 0x3b, 0x26, 0x63, 0x23, 0x6b, 0x76, | ||
31 | 0x3e, 0x7e, 0x36, 0x2b, 0x6e, 0x2e, 0x66, 0x7b, | ||
32 | 0xd3, 0x93, 0xdb, 0x06, 0x43, 0x03, 0x4b, 0x96, | ||
33 | 0xde, 0x9e, 0xd6, 0x0b, 0x4e, 0x0e, 0x46, 0x9b, | ||
34 | 0x57, 0x17, 0x5f, 0x82, 0xc7, 0x87, 0xcf, 0x12, | ||
35 | 0x5a, 0x1a, 0x52, 0x8f, 0xca, 0x8a, 0xc2, 0x1f, | ||
36 | 0xd9, 0x99, 0xd1, 0x00, 0x49, 0x09, 0x41, 0x90, | ||
37 | 0xd8, 0x98, 0xd0, 0x01, 0x48, 0x08, 0x40, 0x91, | ||
38 | 0x3d, 0x7d, 0x35, 0x24, 0x6d, 0x2d, 0x65, 0x74, | ||
39 | 0x3c, 0x7c, 0x34, 0x25, 0x6c, 0x2c, 0x64, 0x75, | ||
40 | 0xdd, 0x9d, 0xd5, 0x04, 0x4d, 0x0d, 0x45, 0x94, | ||
41 | 0xdc, 0x9c, 0xd4, 0x05, 0x4c, 0x0c, 0x44, 0x95, | ||
42 | 0x59, 0x19, 0x51, 0x80, 0xc9, 0x89, 0xc1, 0x10, | ||
43 | 0x58, 0x18, 0x50, 0x81, 0xc8, 0x88, 0xc0, 0x11, | ||
44 | 0xd7, 0x97, 0xdf, 0x02, 0x47, 0x07, 0x4f, 0x92, | ||
45 | 0xda, 0x9a, 0xd2, 0x0f, 0x4a, 0x0a, 0x42, 0x9f, | ||
46 | 0x53, 0x13, 0x5b, 0x86, 0xc3, 0x83, 0xcb, 0x16, | ||
47 | 0x5e, 0x1e, 0x56, 0x8b, 0xce, 0x8e, 0xc6, 0x1b, | ||
48 | 0xb3, 0xf3, 0xbb, 0xa6, 0xe3, 0xa3, 0xeb, 0xf6, | ||
49 | 0xbe, 0xfe, 0xb6, 0xab, 0xee, 0xae, 0xe6, 0xfb, | ||
50 | 0x37, 0x77, 0x3f, 0x22, 0x67, 0x27, 0x6f, 0x72, | ||
51 | 0x3a, 0x7a, 0x32, 0x2f, 0x6a, 0x2a, 0x62, 0x7f, | ||
52 | 0xb9, 0xf9, 0xb1, 0xa0, 0xe9, 0xa9, 0xe1, 0xf0, | ||
53 | 0xb8, 0xf8, 0xb0, 0xa1, 0xe8, 0xa8, 0xe0, 0xf1, | ||
54 | 0x5d, 0x1d, 0x55, 0x84, 0xcd, 0x8d, 0xc5, 0x14, | ||
55 | 0x5c, 0x1c, 0x54, 0x85, 0xcc, 0x8c, 0xc4, 0x15, | ||
56 | 0xbd, 0xfd, 0xb5, 0xa4, 0xed, 0xad, 0xe5, 0xf4, | ||
57 | 0xbc, 0xfc, 0xb4, 0xa5, 0xec, 0xac, 0xe4, 0xf5, | ||
58 | 0x39, 0x79, 0x31, 0x20, 0x69, 0x29, 0x61, 0x70, | ||
59 | 0x38, 0x78, 0x30, 0x21, 0x68, 0x28, 0x60, 0x71, | ||
60 | 0xb7, 0xf7, 0xbf, 0xa2, 0xe7, 0xa7, 0xef, 0xf2, | ||
61 | 0xba, 0xfa, 0xb2, 0xaf, 0xea, 0xaa, 0xe2, 0xff | ||
62 | }; | ||
63 | |||
64 | /* encryption sbox */ | ||
65 | static unsigned char sboxenc[] = { | ||
66 | 0x33, 0x3b, 0x73, 0x15, 0x53, 0x5b, 0x13, 0x75, | ||
67 | 0x3d, 0x35, 0x7d, 0x1b, 0x5d, 0x55, 0x1d, 0x7b, | ||
68 | 0x67, 0x6f, 0x27, 0x81, 0xc7, 0xcf, 0x87, 0x21, | ||
69 | 0x69, 0x61, 0x29, 0x8f, 0xc9, 0xc1, 0x89, 0x2f, | ||
70 | 0xe3, 0xeb, 0xa3, 0x05, 0x43, 0x4b, 0x03, 0xa5, | ||
71 | 0xed, 0xe5, 0xad, 0x0b, 0x4d, 0x45, 0x0d, 0xab, | ||
72 | 0xea, 0xe2, 0xaa, 0x00, 0x4a, 0x42, 0x0a, 0xa0, | ||
73 | 0xe8, 0xe0, 0xa8, 0x02, 0x48, 0x40, 0x08, 0xa2, | ||
74 | 0x3e, 0x36, 0x7e, 0x14, 0x5e, 0x56, 0x1e, 0x74, | ||
75 | 0x3c, 0x34, 0x7c, 0x16, 0x5c, 0x54, 0x1c, 0x76, | ||
76 | 0x6a, 0x62, 0x2a, 0x80, 0xca, 0xc2, 0x8a, 0x20, | ||
77 | 0x68, 0x60, 0x28, 0x82, 0xc8, 0xc0, 0x88, 0x22, | ||
78 | 0xee, 0xe6, 0xae, 0x04, 0x4e, 0x46, 0x0e, 0xa4, | ||
79 | 0xec, 0xe4, 0xac, 0x06, 0x4c, 0x44, 0x0c, 0xa6, | ||
80 | 0xe7, 0xef, 0xa7, 0x01, 0x47, 0x4f, 0x07, 0xa1, | ||
81 | 0xe9, 0xe1, 0xa9, 0x0f, 0x49, 0x41, 0x09, 0xaf, | ||
82 | 0x63, 0x6b, 0x23, 0x85, 0xc3, 0xcb, 0x83, 0x25, | ||
83 | 0x6d, 0x65, 0x2d, 0x8b, 0xcd, 0xc5, 0x8d, 0x2b, | ||
84 | 0x37, 0x3f, 0x77, 0x11, 0x57, 0x5f, 0x17, 0x71, | ||
85 | 0x39, 0x31, 0x79, 0x1f, 0x59, 0x51, 0x19, 0x7f, | ||
86 | 0xb3, 0xbb, 0xf3, 0x95, 0xd3, 0xdb, 0x93, 0xf5, | ||
87 | 0xbd, 0xb5, 0xfd, 0x9b, 0xdd, 0xd5, 0x9d, 0xfb, | ||
88 | 0xba, 0xb2, 0xfa, 0x90, 0xda, 0xd2, 0x9a, 0xf0, | ||
89 | 0xb8, 0xb0, 0xf8, 0x92, 0xd8, 0xd0, 0x98, 0xf2, | ||
90 | 0x6e, 0x66, 0x2e, 0x84, 0xce, 0xc6, 0x8e, 0x24, | ||
91 | 0x6c, 0x64, 0x2c, 0x86, 0xcc, 0xc4, 0x8c, 0x26, | ||
92 | 0x3a, 0x32, 0x7a, 0x10, 0x5a, 0x52, 0x1a, 0x70, | ||
93 | 0x38, 0x30, 0x78, 0x12, 0x58, 0x50, 0x18, 0x72, | ||
94 | 0xbe, 0xb6, 0xfe, 0x94, 0xde, 0xd6, 0x9e, 0xf4, | ||
95 | 0xbc, 0xb4, 0xfc, 0x96, 0xdc, 0xd4, 0x9c, 0xf6, | ||
96 | 0xb7, 0xbf, 0xf7, 0x91, 0xd7, 0xdf, 0x97, 0xf1, | ||
97 | 0xb9, 0xb1, 0xf9, 0x9f, 0xd9, 0xd1, 0x99, 0xff | ||
98 | }; | ||
99 | |||
100 | static unsigned char reverse[] = { | ||
101 | 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, | ||
102 | 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, | ||
103 | 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, | ||
104 | 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, | ||
105 | 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, | ||
106 | 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, | ||
107 | 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, | ||
108 | 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, | ||
109 | 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, | ||
110 | 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, | ||
111 | 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, | ||
112 | 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, | ||
113 | 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, | ||
114 | 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, | ||
115 | 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, | ||
116 | 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, | ||
117 | 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, | ||
118 | 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, | ||
119 | 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, | ||
120 | 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, | ||
121 | 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, | ||
122 | 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, | ||
123 | 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, | ||
124 | 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, | ||
125 | 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, | ||
126 | 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, | ||
127 | 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, | ||
128 | 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, | ||
129 | 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, | ||
130 | 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, | ||
131 | 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, | ||
132 | 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff | ||
133 | }; | ||
134 | |||
135 | /* | ||
136 | * Two linear feedback shift registers are used: | ||
137 | * | ||
138 | * lfsr17: polynomial of degree 17, primitive modulo 2 (listed in Schneier) | ||
139 | * x^15 + x + 1 | ||
140 | * lfsr25: polynomial of degree 25, not know if primitive modulo 2 | ||
141 | * x^13 + x^5 + x^4 + x^1 + 1 | ||
142 | * | ||
143 | * Output bits are discarded, instead the feedback bits are added to produce | ||
144 | * the cipher stream. Depending on the mode, feedback bytes may be inverted | ||
145 | * bit-wise before addition. | ||
146 | * | ||
147 | * The lfsrs are seeded with bytes from the raw key: | ||
148 | * | ||
149 | * lfsr17: byte 0[0:7] at bit 9 | ||
150 | * byte 1[0:7] at bit 0 | ||
151 | * | ||
152 | * lfsr25: byte 2[0:4] at bit 16 | ||
153 | * byte 2[5:7] at bit 22 | ||
154 | * byte 3[0:7] at bit 8 | ||
155 | * byte 4[0:7] at bit 0 | ||
156 | * | ||
157 | * To prevent 0 cycles, 1's are inject at bit 8 in lfrs17 and bit 21 in | ||
158 | * lfsr25. | ||
159 | * | ||
160 | */ | ||
161 | |||
162 | int | ||
163 | acss(ACSS_KEY *key, unsigned long len, const unsigned char *in, | ||
164 | unsigned char *out) | ||
165 | { | ||
166 | unsigned long i; | ||
167 | unsigned long lfsr17tmp, lfsr25tmp, lfsrsumtmp; | ||
168 | |||
169 | lfsrsumtmp = lfsr17tmp = lfsr25tmp = 0; | ||
170 | |||
171 | /* keystream is sum of lfsrs */ | ||
172 | for (i = 0; i < len; i++) { | ||
173 | lfsr17tmp = key->lfsr17 ^ (key->lfsr17 >> 14); | ||
174 | key->lfsr17 = (key->lfsr17 >> 8) | ||
175 | ^ (lfsr17tmp << 9) | ||
176 | ^ (lfsr17tmp << 12) | ||
177 | ^ (lfsr17tmp << 15); | ||
178 | key->lfsr17 &= 0x1ffff; /* 17 bit LFSR */ | ||
179 | |||
180 | lfsr25tmp = key->lfsr25 | ||
181 | ^ (key->lfsr25 >> 3) | ||
182 | ^ (key->lfsr25 >> 4) | ||
183 | ^ (key->lfsr25 >> 12); | ||
184 | key->lfsr25 = (key->lfsr25 >> 8) ^ (lfsr25tmp << 17); | ||
185 | key->lfsr25 &= 0x1ffffff; /* 25 bit LFSR */ | ||
186 | |||
187 | lfsrsumtmp = key->lfsrsum; | ||
188 | |||
189 | /* addition */ | ||
190 | switch (key->mode) { | ||
191 | case ACSS_AUTHENTICATE: | ||
192 | case ACSS_DATA: | ||
193 | key->lfsrsum = 0xff & ~(key->lfsr17 >> 9); | ||
194 | key->lfsrsum += key->lfsr25 >> 17; | ||
195 | break; | ||
196 | case ACSS_SESSIONKEY: | ||
197 | key->lfsrsum = key->lfsr17 >> 9; | ||
198 | key->lfsrsum += key->lfsr25 >> 17; | ||
199 | break; | ||
200 | case ACSS_TITLEKEY: | ||
201 | key->lfsrsum = key->lfsr17 >> 9; | ||
202 | key->lfsrsum += 0xff & ~(key->lfsr25 >> 17); | ||
203 | break; | ||
204 | default: | ||
205 | return 1; | ||
206 | } | ||
207 | key->lfsrsum += (lfsrsumtmp >> 8); | ||
208 | |||
209 | if (key->encrypt) { | ||
210 | out[i] = sboxenc[(in[i] ^ key->lfsrsum) & 0xff]; | ||
211 | } else { | ||
212 | out[i] = (sboxdec[in[i]] ^ key->lfsrsum) & 0xff; | ||
213 | } | ||
214 | } | ||
215 | |||
216 | return 0; | ||
217 | } | ||
218 | |||
219 | static void | ||
220 | acss_seed(ACSS_KEY *key) | ||
221 | { | ||
222 | int i; | ||
223 | |||
224 | /* if available, mangle with subkey */ | ||
225 | if (key->subkey_avilable) { | ||
226 | for (i = 0; i < ACSS_KEYSIZE; i++) | ||
227 | key->seed[i] = reverse[key->data[i] ^ key->subkey[i]]; | ||
228 | } else { | ||
229 | for (i = 0; i < ACSS_KEYSIZE; i++) | ||
230 | key->seed[i] = reverse[key->data[i]]; | ||
231 | } | ||
232 | |||
233 | /* seed lfsrs */ | ||
234 | key->lfsr17 = key->seed[1] | ||
235 | | (key->seed[0] << 9) | ||
236 | | (1 << 8); /* inject 1 at bit 9 */ | ||
237 | key->lfsr25 = key->seed[4] | ||
238 | | (key->seed[3] << 8) | ||
239 | | ((key->seed[2] & 0x1f) << 16) | ||
240 | | ((key->seed[2] & 0xe0) << 17) | ||
241 | | (1 << 21); /* inject 1 at bit 22 */ | ||
242 | |||
243 | key->lfsrsum = 0; | ||
244 | } | ||
245 | |||
246 | void | ||
247 | acss_setkey(ACSS_KEY *key, const unsigned char *data, int enc, int mode) | ||
248 | { | ||
249 | memcpy(key->data, data, sizeof(key->data)); | ||
250 | memset(key->subkey, 0, sizeof(key->subkey)); | ||
251 | |||
252 | if (enc != -1) | ||
253 | key->encrypt = enc; | ||
254 | key->mode = mode; | ||
255 | key->subkey_avilable = 0; | ||
256 | |||
257 | acss_seed(key); | ||
258 | } | ||
259 | |||
260 | void | ||
261 | acss_setsubkey(ACSS_KEY *key, const unsigned char *subkey) | ||
262 | { | ||
263 | memcpy(key->subkey, subkey, sizeof(key->subkey)); | ||
264 | key->subkey_avilable = 1; | ||
265 | acss_seed(key); | ||
266 | } | ||
267 | #endif | ||