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700d8687 OM |
1 | /* |
2 | * Camellia implementation | |
3 | * | |
4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved | |
5 | * SPDX-License-Identifier: GPL-2.0 | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 | * | |
21 | * This file is part of mbed TLS (https://tls.mbed.org) | |
22 | */ | |
23 | /* | |
24 | * The Camellia block cipher was designed by NTT and Mitsubishi Electric | |
25 | * Corporation. | |
26 | * | |
27 | * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/01espec.pdf | |
28 | */ | |
29 | ||
30 | #if !defined(MBEDTLS_CONFIG_FILE) | |
31 | #include "mbedtls/config.h" | |
32 | #else | |
33 | #include MBEDTLS_CONFIG_FILE | |
34 | #endif | |
35 | ||
36 | #if defined(MBEDTLS_CAMELLIA_C) | |
37 | ||
38 | #include "mbedtls/camellia.h" | |
39 | #include "mbedtls/platform_util.h" | |
40 | ||
41 | #include <string.h> | |
42 | ||
43 | #if defined(MBEDTLS_SELF_TEST) | |
44 | #if defined(MBEDTLS_PLATFORM_C) | |
45 | #include "mbedtls/platform.h" | |
46 | #else | |
47 | #include <stdio.h> | |
48 | #define mbedtls_printf printf | |
49 | #endif /* MBEDTLS_PLATFORM_C */ | |
50 | #endif /* MBEDTLS_SELF_TEST */ | |
51 | ||
52 | #if !defined(MBEDTLS_CAMELLIA_ALT) | |
53 | ||
54 | /* | |
55 | * 32-bit integer manipulation macros (big endian) | |
56 | */ | |
57 | #ifndef GET_UINT32_BE | |
58 | #define GET_UINT32_BE(n,b,i) \ | |
59 | { \ | |
60 | (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ | |
61 | | ( (uint32_t) (b)[(i) + 1] << 16 ) \ | |
62 | | ( (uint32_t) (b)[(i) + 2] << 8 ) \ | |
63 | | ( (uint32_t) (b)[(i) + 3] ); \ | |
64 | } | |
65 | #endif | |
66 | ||
67 | #ifndef PUT_UINT32_BE | |
68 | #define PUT_UINT32_BE(n,b,i) \ | |
69 | { \ | |
70 | (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ | |
71 | (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ | |
72 | (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ | |
73 | (b)[(i) + 3] = (unsigned char) ( (n) ); \ | |
74 | } | |
75 | #endif | |
76 | ||
77 | static const unsigned char SIGMA_CHARS[6][8] = | |
78 | { | |
79 | { 0xa0, 0x9e, 0x66, 0x7f, 0x3b, 0xcc, 0x90, 0x8b }, | |
80 | { 0xb6, 0x7a, 0xe8, 0x58, 0x4c, 0xaa, 0x73, 0xb2 }, | |
81 | { 0xc6, 0xef, 0x37, 0x2f, 0xe9, 0x4f, 0x82, 0xbe }, | |
82 | { 0x54, 0xff, 0x53, 0xa5, 0xf1, 0xd3, 0x6f, 0x1c }, | |
83 | { 0x10, 0xe5, 0x27, 0xfa, 0xde, 0x68, 0x2d, 0x1d }, | |
84 | { 0xb0, 0x56, 0x88, 0xc2, 0xb3, 0xe6, 0xc1, 0xfd } | |
85 | }; | |
86 | ||
87 | #if defined(MBEDTLS_CAMELLIA_SMALL_MEMORY) | |
88 | ||
89 | static const unsigned char FSb[256] = | |
90 | { | |
91 | 112,130, 44,236,179, 39,192,229,228,133, 87, 53,234, 12,174, 65, | |
92 | 35,239,107,147, 69, 25,165, 33,237, 14, 79, 78, 29,101,146,189, | |
93 | 134,184,175,143,124,235, 31,206, 62, 48,220, 95, 94,197, 11, 26, | |
94 | 166,225, 57,202,213, 71, 93, 61,217, 1, 90,214, 81, 86,108, 77, | |
95 | 139, 13,154,102,251,204,176, 45,116, 18, 43, 32,240,177,132,153, | |
96 | 223, 76,203,194, 52,126,118, 5,109,183,169, 49,209, 23, 4,215, | |
97 | 20, 88, 58, 97,222, 27, 17, 28, 50, 15,156, 22, 83, 24,242, 34, | |
98 | 254, 68,207,178,195,181,122,145, 36, 8,232,168, 96,252,105, 80, | |
99 | 170,208,160,125,161,137, 98,151, 84, 91, 30,149,224,255,100,210, | |
100 | 16,196, 0, 72,163,247,117,219,138, 3,230,218, 9, 63,221,148, | |
101 | 135, 92,131, 2,205, 74,144, 51,115,103,246,243,157,127,191,226, | |
102 | 82,155,216, 38,200, 55,198, 59,129,150,111, 75, 19,190, 99, 46, | |
103 | 233,121,167,140,159,110,188,142, 41,245,249,182, 47,253,180, 89, | |
104 | 120,152, 6,106,231, 70,113,186,212, 37,171, 66,136,162,141,250, | |
105 | 114, 7,185, 85,248,238,172, 10, 54, 73, 42,104, 60, 56,241,164, | |
106 | 64, 40,211,123,187,201, 67,193, 21,227,173,244,119,199,128,158 | |
107 | }; | |
108 | ||
109 | #define SBOX1(n) FSb[(n)] | |
110 | #define SBOX2(n) (unsigned char)((FSb[(n)] >> 7 ^ FSb[(n)] << 1) & 0xff) | |
111 | #define SBOX3(n) (unsigned char)((FSb[(n)] >> 1 ^ FSb[(n)] << 7) & 0xff) | |
112 | #define SBOX4(n) FSb[((n) << 1 ^ (n) >> 7) &0xff] | |
113 | ||
114 | #else /* MBEDTLS_CAMELLIA_SMALL_MEMORY */ | |
115 | ||
116 | static const unsigned char FSb[256] = | |
117 | { | |
118 | 112, 130, 44, 236, 179, 39, 192, 229, 228, 133, 87, 53, 234, 12, 174, 65, | |
119 | 35, 239, 107, 147, 69, 25, 165, 33, 237, 14, 79, 78, 29, 101, 146, 189, | |
120 | 134, 184, 175, 143, 124, 235, 31, 206, 62, 48, 220, 95, 94, 197, 11, 26, | |
121 | 166, 225, 57, 202, 213, 71, 93, 61, 217, 1, 90, 214, 81, 86, 108, 77, | |
122 | 139, 13, 154, 102, 251, 204, 176, 45, 116, 18, 43, 32, 240, 177, 132, 153, | |
123 | 223, 76, 203, 194, 52, 126, 118, 5, 109, 183, 169, 49, 209, 23, 4, 215, | |
124 | 20, 88, 58, 97, 222, 27, 17, 28, 50, 15, 156, 22, 83, 24, 242, 34, | |
125 | 254, 68, 207, 178, 195, 181, 122, 145, 36, 8, 232, 168, 96, 252, 105, 80, | |
126 | 170, 208, 160, 125, 161, 137, 98, 151, 84, 91, 30, 149, 224, 255, 100, 210, | |
127 | 16, 196, 0, 72, 163, 247, 117, 219, 138, 3, 230, 218, 9, 63, 221, 148, | |
128 | 135, 92, 131, 2, 205, 74, 144, 51, 115, 103, 246, 243, 157, 127, 191, 226, | |
129 | 82, 155, 216, 38, 200, 55, 198, 59, 129, 150, 111, 75, 19, 190, 99, 46, | |
130 | 233, 121, 167, 140, 159, 110, 188, 142, 41, 245, 249, 182, 47, 253, 180, 89, | |
131 | 120, 152, 6, 106, 231, 70, 113, 186, 212, 37, 171, 66, 136, 162, 141, 250, | |
132 | 114, 7, 185, 85, 248, 238, 172, 10, 54, 73, 42, 104, 60, 56, 241, 164, | |
133 | 64, 40, 211, 123, 187, 201, 67, 193, 21, 227, 173, 244, 119, 199, 128, 158 | |
134 | }; | |
135 | ||
136 | static const unsigned char FSb2[256] = | |
137 | { | |
138 | 224, 5, 88, 217, 103, 78, 129, 203, 201, 11, 174, 106, 213, 24, 93, 130, | |
139 | 70, 223, 214, 39, 138, 50, 75, 66, 219, 28, 158, 156, 58, 202, 37, 123, | |
140 | 13, 113, 95, 31, 248, 215, 62, 157, 124, 96, 185, 190, 188, 139, 22, 52, | |
141 | 77, 195, 114, 149, 171, 142, 186, 122, 179, 2, 180, 173, 162, 172, 216, 154, | |
142 | 23, 26, 53, 204, 247, 153, 97, 90, 232, 36, 86, 64, 225, 99, 9, 51, | |
143 | 191, 152, 151, 133, 104, 252, 236, 10, 218, 111, 83, 98, 163, 46, 8, 175, | |
144 | 40, 176, 116, 194, 189, 54, 34, 56, 100, 30, 57, 44, 166, 48, 229, 68, | |
145 | 253, 136, 159, 101, 135, 107, 244, 35, 72, 16, 209, 81, 192, 249, 210, 160, | |
146 | 85, 161, 65, 250, 67, 19, 196, 47, 168, 182, 60, 43, 193, 255, 200, 165, | |
147 | 32, 137, 0, 144, 71, 239, 234, 183, 21, 6, 205, 181, 18, 126, 187, 41, | |
148 | 15, 184, 7, 4, 155, 148, 33, 102, 230, 206, 237, 231, 59, 254, 127, 197, | |
149 | 164, 55, 177, 76, 145, 110, 141, 118, 3, 45, 222, 150, 38, 125, 198, 92, | |
150 | 211, 242, 79, 25, 63, 220, 121, 29, 82, 235, 243, 109, 94, 251, 105, 178, | |
151 | 240, 49, 12, 212, 207, 140, 226, 117, 169, 74, 87, 132, 17, 69, 27, 245, | |
152 | 228, 14, 115, 170, 241, 221, 89, 20, 108, 146, 84, 208, 120, 112, 227, 73, | |
153 | 128, 80, 167, 246, 119, 147, 134, 131, 42, 199, 91, 233, 238, 143, 1, 61 | |
154 | }; | |
155 | ||
156 | static const unsigned char FSb3[256] = | |
157 | { | |
158 | 56, 65, 22, 118, 217, 147, 96, 242, 114, 194, 171, 154, 117, 6, 87, 160, | |
159 | 145, 247, 181, 201, 162, 140, 210, 144, 246, 7, 167, 39, 142, 178, 73, 222, | |
160 | 67, 92, 215, 199, 62, 245, 143, 103, 31, 24, 110, 175, 47, 226, 133, 13, | |
161 | 83, 240, 156, 101, 234, 163, 174, 158, 236, 128, 45, 107, 168, 43, 54, 166, | |
162 | 197, 134, 77, 51, 253, 102, 88, 150, 58, 9, 149, 16, 120, 216, 66, 204, | |
163 | 239, 38, 229, 97, 26, 63, 59, 130, 182, 219, 212, 152, 232, 139, 2, 235, | |
164 | 10, 44, 29, 176, 111, 141, 136, 14, 25, 135, 78, 11, 169, 12, 121, 17, | |
165 | 127, 34, 231, 89, 225, 218, 61, 200, 18, 4, 116, 84, 48, 126, 180, 40, | |
166 | 85, 104, 80, 190, 208, 196, 49, 203, 42, 173, 15, 202, 112, 255, 50, 105, | |
167 | 8, 98, 0, 36, 209, 251, 186, 237, 69, 129, 115, 109, 132, 159, 238, 74, | |
168 | 195, 46, 193, 1, 230, 37, 72, 153, 185, 179, 123, 249, 206, 191, 223, 113, | |
169 | 41, 205, 108, 19, 100, 155, 99, 157, 192, 75, 183, 165, 137, 95, 177, 23, | |
170 | 244, 188, 211, 70, 207, 55, 94, 71, 148, 250, 252, 91, 151, 254, 90, 172, | |
171 | 60, 76, 3, 53, 243, 35, 184, 93, 106, 146, 213, 33, 68, 81, 198, 125, | |
172 | 57, 131, 220, 170, 124, 119, 86, 5, 27, 164, 21, 52, 30, 28, 248, 82, | |
173 | 32, 20, 233, 189, 221, 228, 161, 224, 138, 241, 214, 122, 187, 227, 64, 79 | |
174 | }; | |
175 | ||
176 | static const unsigned char FSb4[256] = | |
177 | { | |
178 | 112, 44, 179, 192, 228, 87, 234, 174, 35, 107, 69, 165, 237, 79, 29, 146, | |
179 | 134, 175, 124, 31, 62, 220, 94, 11, 166, 57, 213, 93, 217, 90, 81, 108, | |
180 | 139, 154, 251, 176, 116, 43, 240, 132, 223, 203, 52, 118, 109, 169, 209, 4, | |
181 | 20, 58, 222, 17, 50, 156, 83, 242, 254, 207, 195, 122, 36, 232, 96, 105, | |
182 | 170, 160, 161, 98, 84, 30, 224, 100, 16, 0, 163, 117, 138, 230, 9, 221, | |
183 | 135, 131, 205, 144, 115, 246, 157, 191, 82, 216, 200, 198, 129, 111, 19, 99, | |
184 | 233, 167, 159, 188, 41, 249, 47, 180, 120, 6, 231, 113, 212, 171, 136, 141, | |
185 | 114, 185, 248, 172, 54, 42, 60, 241, 64, 211, 187, 67, 21, 173, 119, 128, | |
186 | 130, 236, 39, 229, 133, 53, 12, 65, 239, 147, 25, 33, 14, 78, 101, 189, | |
187 | 184, 143, 235, 206, 48, 95, 197, 26, 225, 202, 71, 61, 1, 214, 86, 77, | |
188 | 13, 102, 204, 45, 18, 32, 177, 153, 76, 194, 126, 5, 183, 49, 23, 215, | |
189 | 88, 97, 27, 28, 15, 22, 24, 34, 68, 178, 181, 145, 8, 168, 252, 80, | |
190 | 208, 125, 137, 151, 91, 149, 255, 210, 196, 72, 247, 219, 3, 218, 63, 148, | |
191 | 92, 2, 74, 51, 103, 243, 127, 226, 155, 38, 55, 59, 150, 75, 190, 46, | |
192 | 121, 140, 110, 142, 245, 182, 253, 89, 152, 106, 70, 186, 37, 66, 162, 250, | |
193 | 7, 85, 238, 10, 73, 104, 56, 164, 40, 123, 201, 193, 227, 244, 199, 158 | |
194 | }; | |
195 | ||
196 | #define SBOX1(n) FSb[(n)] | |
197 | #define SBOX2(n) FSb2[(n)] | |
198 | #define SBOX3(n) FSb3[(n)] | |
199 | #define SBOX4(n) FSb4[(n)] | |
200 | ||
201 | #endif /* MBEDTLS_CAMELLIA_SMALL_MEMORY */ | |
202 | ||
203 | static const unsigned char shifts[2][4][4] = | |
204 | { | |
205 | { | |
206 | { 1, 1, 1, 1 }, /* KL */ | |
207 | { 0, 0, 0, 0 }, /* KR */ | |
208 | { 1, 1, 1, 1 }, /* KA */ | |
209 | { 0, 0, 0, 0 } /* KB */ | |
210 | }, | |
211 | { | |
212 | { 1, 0, 1, 1 }, /* KL */ | |
213 | { 1, 1, 0, 1 }, /* KR */ | |
214 | { 1, 1, 1, 0 }, /* KA */ | |
215 | { 1, 1, 0, 1 } /* KB */ | |
216 | } | |
217 | }; | |
218 | ||
219 | static const signed char indexes[2][4][20] = | |
220 | { | |
221 | { | |
222 | { 0, 1, 2, 3, 8, 9, 10, 11, 38, 39, | |
223 | 36, 37, 23, 20, 21, 22, 27, -1, -1, 26 }, /* KL -> RK */ | |
224 | { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
225 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, /* KR -> RK */ | |
226 | { 4, 5, 6, 7, 12, 13, 14, 15, 16, 17, | |
227 | 18, 19, -1, 24, 25, -1, 31, 28, 29, 30 }, /* KA -> RK */ | |
228 | { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
229 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } /* KB -> RK */ | |
230 | }, | |
231 | { | |
232 | { 0, 1, 2, 3, 61, 62, 63, 60, -1, -1, | |
233 | -1, -1, 27, 24, 25, 26, 35, 32, 33, 34 }, /* KL -> RK */ | |
234 | { -1, -1, -1, -1, 8, 9, 10, 11, 16, 17, | |
235 | 18, 19, -1, -1, -1, -1, 39, 36, 37, 38 }, /* KR -> RK */ | |
236 | { -1, -1, -1, -1, 12, 13, 14, 15, 58, 59, | |
237 | 56, 57, 31, 28, 29, 30, -1, -1, -1, -1 }, /* KA -> RK */ | |
238 | { 4, 5, 6, 7, 65, 66, 67, 64, 20, 21, | |
239 | 22, 23, -1, -1, -1, -1, 43, 40, 41, 42 } /* KB -> RK */ | |
240 | } | |
241 | }; | |
242 | ||
243 | static const signed char transposes[2][20] = | |
244 | { | |
245 | { | |
246 | 21, 22, 23, 20, | |
247 | -1, -1, -1, -1, | |
248 | 18, 19, 16, 17, | |
249 | 11, 8, 9, 10, | |
250 | 15, 12, 13, 14 | |
251 | }, | |
252 | { | |
253 | 25, 26, 27, 24, | |
254 | 29, 30, 31, 28, | |
255 | 18, 19, 16, 17, | |
256 | -1, -1, -1, -1, | |
257 | -1, -1, -1, -1 | |
258 | } | |
259 | }; | |
260 | ||
261 | /* Shift macro for 128 bit strings with rotation smaller than 32 bits (!) */ | |
262 | #define ROTL(DEST, SRC, SHIFT) \ | |
263 | { \ | |
264 | (DEST)[0] = (SRC)[0] << (SHIFT) ^ (SRC)[1] >> (32 - (SHIFT)); \ | |
265 | (DEST)[1] = (SRC)[1] << (SHIFT) ^ (SRC)[2] >> (32 - (SHIFT)); \ | |
266 | (DEST)[2] = (SRC)[2] << (SHIFT) ^ (SRC)[3] >> (32 - (SHIFT)); \ | |
267 | (DEST)[3] = (SRC)[3] << (SHIFT) ^ (SRC)[0] >> (32 - (SHIFT)); \ | |
268 | } | |
269 | ||
270 | #define FL(XL, XR, KL, KR) \ | |
271 | { \ | |
272 | (XR) = ((((XL) & (KL)) << 1) | (((XL) & (KL)) >> 31)) ^ (XR); \ | |
273 | (XL) = ((XR) | (KR)) ^ (XL); \ | |
274 | } | |
275 | ||
276 | #define FLInv(YL, YR, KL, KR) \ | |
277 | { \ | |
278 | (YL) = ((YR) | (KR)) ^ (YL); \ | |
279 | (YR) = ((((YL) & (KL)) << 1) | (((YL) & (KL)) >> 31)) ^ (YR); \ | |
280 | } | |
281 | ||
282 | #define SHIFT_AND_PLACE(INDEX, OFFSET) \ | |
283 | { \ | |
284 | TK[0] = KC[(OFFSET) * 4 + 0]; \ | |
285 | TK[1] = KC[(OFFSET) * 4 + 1]; \ | |
286 | TK[2] = KC[(OFFSET) * 4 + 2]; \ | |
287 | TK[3] = KC[(OFFSET) * 4 + 3]; \ | |
288 | \ | |
289 | for( i = 1; i <= 4; i++ ) \ | |
290 | if( shifts[(INDEX)][(OFFSET)][i -1] ) \ | |
291 | ROTL(TK + i * 4, TK, ( 15 * i ) % 32); \ | |
292 | \ | |
293 | for( i = 0; i < 20; i++ ) \ | |
294 | if( indexes[(INDEX)][(OFFSET)][i] != -1 ) { \ | |
295 | RK[indexes[(INDEX)][(OFFSET)][i]] = TK[ i ]; \ | |
296 | } \ | |
297 | } | |
298 | ||
299 | static void camellia_feistel( const uint32_t x[2], const uint32_t k[2], | |
300 | uint32_t z[2]) | |
301 | { | |
302 | uint32_t I0, I1; | |
303 | I0 = x[0] ^ k[0]; | |
304 | I1 = x[1] ^ k[1]; | |
305 | ||
306 | I0 = ((uint32_t) SBOX1((I0 >> 24) & 0xFF) << 24) | | |
307 | ((uint32_t) SBOX2((I0 >> 16) & 0xFF) << 16) | | |
308 | ((uint32_t) SBOX3((I0 >> 8) & 0xFF) << 8) | | |
309 | ((uint32_t) SBOX4((I0 ) & 0xFF) ); | |
310 | I1 = ((uint32_t) SBOX2((I1 >> 24) & 0xFF) << 24) | | |
311 | ((uint32_t) SBOX3((I1 >> 16) & 0xFF) << 16) | | |
312 | ((uint32_t) SBOX4((I1 >> 8) & 0xFF) << 8) | | |
313 | ((uint32_t) SBOX1((I1 ) & 0xFF) ); | |
314 | ||
315 | I0 ^= (I1 << 8) | (I1 >> 24); | |
316 | I1 ^= (I0 << 16) | (I0 >> 16); | |
317 | I0 ^= (I1 >> 8) | (I1 << 24); | |
318 | I1 ^= (I0 >> 8) | (I0 << 24); | |
319 | ||
320 | z[0] ^= I1; | |
321 | z[1] ^= I0; | |
322 | } | |
323 | ||
324 | void mbedtls_camellia_init( mbedtls_camellia_context *ctx ) | |
325 | { | |
326 | memset( ctx, 0, sizeof( mbedtls_camellia_context ) ); | |
327 | } | |
328 | ||
329 | void mbedtls_camellia_free( mbedtls_camellia_context *ctx ) | |
330 | { | |
331 | if( ctx == NULL ) | |
332 | return; | |
333 | ||
334 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_camellia_context ) ); | |
335 | } | |
336 | ||
337 | /* | |
338 | * Camellia key schedule (encryption) | |
339 | */ | |
340 | int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx, const unsigned char *key, | |
341 | unsigned int keybits ) | |
342 | { | |
343 | int idx; | |
344 | size_t i; | |
345 | uint32_t *RK; | |
346 | unsigned char t[64]; | |
347 | uint32_t SIGMA[6][2]; | |
348 | uint32_t KC[16]; | |
349 | uint32_t TK[20]; | |
350 | ||
351 | RK = ctx->rk; | |
352 | ||
353 | memset( t, 0, 64 ); | |
354 | memset( RK, 0, sizeof(ctx->rk) ); | |
355 | ||
356 | switch( keybits ) | |
357 | { | |
358 | case 128: ctx->nr = 3; idx = 0; break; | |
359 | case 192: | |
360 | case 256: ctx->nr = 4; idx = 1; break; | |
361 | default : return( MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH ); | |
362 | } | |
363 | ||
364 | for( i = 0; i < keybits / 8; ++i ) | |
365 | t[i] = key[i]; | |
366 | ||
367 | if( keybits == 192 ) { | |
368 | for( i = 0; i < 8; i++ ) | |
369 | t[24 + i] = ~t[16 + i]; | |
370 | } | |
371 | ||
372 | /* | |
373 | * Prepare SIGMA values | |
374 | */ | |
375 | for( i = 0; i < 6; i++ ) { | |
376 | GET_UINT32_BE( SIGMA[i][0], SIGMA_CHARS[i], 0 ); | |
377 | GET_UINT32_BE( SIGMA[i][1], SIGMA_CHARS[i], 4 ); | |
378 | } | |
379 | ||
380 | /* | |
381 | * Key storage in KC | |
382 | * Order: KL, KR, KA, KB | |
383 | */ | |
384 | memset( KC, 0, sizeof(KC) ); | |
385 | ||
386 | /* Store KL, KR */ | |
387 | for( i = 0; i < 8; i++ ) | |
388 | GET_UINT32_BE( KC[i], t, i * 4 ); | |
389 | ||
390 | /* Generate KA */ | |
391 | for( i = 0; i < 4; ++i ) | |
392 | KC[8 + i] = KC[i] ^ KC[4 + i]; | |
393 | ||
394 | camellia_feistel( KC + 8, SIGMA[0], KC + 10 ); | |
395 | camellia_feistel( KC + 10, SIGMA[1], KC + 8 ); | |
396 | ||
397 | for( i = 0; i < 4; ++i ) | |
398 | KC[8 + i] ^= KC[i]; | |
399 | ||
400 | camellia_feistel( KC + 8, SIGMA[2], KC + 10 ); | |
401 | camellia_feistel( KC + 10, SIGMA[3], KC + 8 ); | |
402 | ||
403 | if( keybits > 128 ) { | |
404 | /* Generate KB */ | |
405 | for( i = 0; i < 4; ++i ) | |
406 | KC[12 + i] = KC[4 + i] ^ KC[8 + i]; | |
407 | ||
408 | camellia_feistel( KC + 12, SIGMA[4], KC + 14 ); | |
409 | camellia_feistel( KC + 14, SIGMA[5], KC + 12 ); | |
410 | } | |
411 | ||
412 | /* | |
413 | * Generating subkeys | |
414 | */ | |
415 | ||
416 | /* Manipulating KL */ | |
417 | SHIFT_AND_PLACE( idx, 0 ); | |
418 | ||
419 | /* Manipulating KR */ | |
420 | if( keybits > 128 ) { | |
421 | SHIFT_AND_PLACE( idx, 1 ); | |
422 | } | |
423 | ||
424 | /* Manipulating KA */ | |
425 | SHIFT_AND_PLACE( idx, 2 ); | |
426 | ||
427 | /* Manipulating KB */ | |
428 | if( keybits > 128 ) { | |
429 | SHIFT_AND_PLACE( idx, 3 ); | |
430 | } | |
431 | ||
432 | /* Do transpositions */ | |
433 | for( i = 0; i < 20; i++ ) { | |
434 | if( transposes[idx][i] != -1 ) { | |
435 | RK[32 + 12 * idx + i] = RK[transposes[idx][i]]; | |
436 | } | |
437 | } | |
438 | ||
439 | return( 0 ); | |
440 | } | |
441 | ||
442 | /* | |
443 | * Camellia key schedule (decryption) | |
444 | */ | |
445 | int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx, const unsigned char *key, | |
446 | unsigned int keybits ) | |
447 | { | |
448 | int idx, ret; | |
449 | size_t i; | |
450 | mbedtls_camellia_context cty; | |
451 | uint32_t *RK; | |
452 | uint32_t *SK; | |
453 | ||
454 | mbedtls_camellia_init( &cty ); | |
455 | ||
456 | /* Also checks keybits */ | |
457 | if( ( ret = mbedtls_camellia_setkey_enc( &cty, key, keybits ) ) != 0 ) | |
458 | goto exit; | |
459 | ||
460 | ctx->nr = cty.nr; | |
461 | idx = ( ctx->nr == 4 ); | |
462 | ||
463 | RK = ctx->rk; | |
464 | SK = cty.rk + 24 * 2 + 8 * idx * 2; | |
465 | ||
466 | *RK++ = *SK++; | |
467 | *RK++ = *SK++; | |
468 | *RK++ = *SK++; | |
469 | *RK++ = *SK++; | |
470 | ||
471 | for( i = 22 + 8 * idx, SK -= 6; i > 0; i--, SK -= 4 ) | |
472 | { | |
473 | *RK++ = *SK++; | |
474 | *RK++ = *SK++; | |
475 | } | |
476 | ||
477 | SK -= 2; | |
478 | ||
479 | *RK++ = *SK++; | |
480 | *RK++ = *SK++; | |
481 | *RK++ = *SK++; | |
482 | *RK++ = *SK++; | |
483 | ||
484 | exit: | |
485 | mbedtls_camellia_free( &cty ); | |
486 | ||
487 | return( ret ); | |
488 | } | |
489 | ||
490 | /* | |
491 | * Camellia-ECB block encryption/decryption | |
492 | */ | |
493 | int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx, | |
494 | int mode, | |
495 | const unsigned char input[16], | |
496 | unsigned char output[16] ) | |
497 | { | |
498 | int NR; | |
499 | uint32_t *RK, X[4]; | |
500 | ||
501 | ( (void) mode ); | |
502 | ||
503 | NR = ctx->nr; | |
504 | RK = ctx->rk; | |
505 | ||
506 | GET_UINT32_BE( X[0], input, 0 ); | |
507 | GET_UINT32_BE( X[1], input, 4 ); | |
508 | GET_UINT32_BE( X[2], input, 8 ); | |
509 | GET_UINT32_BE( X[3], input, 12 ); | |
510 | ||
511 | X[0] ^= *RK++; | |
512 | X[1] ^= *RK++; | |
513 | X[2] ^= *RK++; | |
514 | X[3] ^= *RK++; | |
515 | ||
516 | while( NR ) { | |
517 | --NR; | |
518 | camellia_feistel( X, RK, X + 2 ); | |
519 | RK += 2; | |
520 | camellia_feistel( X + 2, RK, X ); | |
521 | RK += 2; | |
522 | camellia_feistel( X, RK, X + 2 ); | |
523 | RK += 2; | |
524 | camellia_feistel( X + 2, RK, X ); | |
525 | RK += 2; | |
526 | camellia_feistel( X, RK, X + 2 ); | |
527 | RK += 2; | |
528 | camellia_feistel( X + 2, RK, X ); | |
529 | RK += 2; | |
530 | ||
531 | if( NR ) { | |
532 | FL(X[0], X[1], RK[0], RK[1]); | |
533 | RK += 2; | |
534 | FLInv(X[2], X[3], RK[0], RK[1]); | |
535 | RK += 2; | |
536 | } | |
537 | } | |
538 | ||
539 | X[2] ^= *RK++; | |
540 | X[3] ^= *RK++; | |
541 | X[0] ^= *RK++; | |
542 | X[1] ^= *RK++; | |
543 | ||
544 | PUT_UINT32_BE( X[2], output, 0 ); | |
545 | PUT_UINT32_BE( X[3], output, 4 ); | |
546 | PUT_UINT32_BE( X[0], output, 8 ); | |
547 | PUT_UINT32_BE( X[1], output, 12 ); | |
548 | ||
549 | return( 0 ); | |
550 | } | |
551 | ||
552 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
553 | /* | |
554 | * Camellia-CBC buffer encryption/decryption | |
555 | */ | |
556 | int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx, | |
557 | int mode, | |
558 | size_t length, | |
559 | unsigned char iv[16], | |
560 | const unsigned char *input, | |
561 | unsigned char *output ) | |
562 | { | |
563 | int i; | |
564 | unsigned char temp[16]; | |
565 | ||
566 | if( length % 16 ) | |
567 | return( MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH ); | |
568 | ||
569 | if( mode == MBEDTLS_CAMELLIA_DECRYPT ) | |
570 | { | |
571 | while( length > 0 ) | |
572 | { | |
573 | memcpy( temp, input, 16 ); | |
574 | mbedtls_camellia_crypt_ecb( ctx, mode, input, output ); | |
575 | ||
576 | for( i = 0; i < 16; i++ ) | |
577 | output[i] = (unsigned char)( output[i] ^ iv[i] ); | |
578 | ||
579 | memcpy( iv, temp, 16 ); | |
580 | ||
581 | input += 16; | |
582 | output += 16; | |
583 | length -= 16; | |
584 | } | |
585 | } | |
586 | else | |
587 | { | |
588 | while( length > 0 ) | |
589 | { | |
590 | for( i = 0; i < 16; i++ ) | |
591 | output[i] = (unsigned char)( input[i] ^ iv[i] ); | |
592 | ||
593 | mbedtls_camellia_crypt_ecb( ctx, mode, output, output ); | |
594 | memcpy( iv, output, 16 ); | |
595 | ||
596 | input += 16; | |
597 | output += 16; | |
598 | length -= 16; | |
599 | } | |
600 | } | |
601 | ||
602 | return( 0 ); | |
603 | } | |
604 | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | |
605 | ||
606 | #if defined(MBEDTLS_CIPHER_MODE_CFB) | |
607 | /* | |
608 | * Camellia-CFB128 buffer encryption/decryption | |
609 | */ | |
610 | int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx, | |
611 | int mode, | |
612 | size_t length, | |
613 | size_t *iv_off, | |
614 | unsigned char iv[16], | |
615 | const unsigned char *input, | |
616 | unsigned char *output ) | |
617 | { | |
618 | int c; | |
619 | size_t n = *iv_off; | |
620 | ||
621 | if( mode == MBEDTLS_CAMELLIA_DECRYPT ) | |
622 | { | |
623 | while( length-- ) | |
624 | { | |
625 | if( n == 0 ) | |
626 | mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, iv, iv ); | |
627 | ||
628 | c = *input++; | |
629 | *output++ = (unsigned char)( c ^ iv[n] ); | |
630 | iv[n] = (unsigned char) c; | |
631 | ||
632 | n = ( n + 1 ) & 0x0F; | |
633 | } | |
634 | } | |
635 | else | |
636 | { | |
637 | while( length-- ) | |
638 | { | |
639 | if( n == 0 ) | |
640 | mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, iv, iv ); | |
641 | ||
642 | iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ ); | |
643 | ||
644 | n = ( n + 1 ) & 0x0F; | |
645 | } | |
646 | } | |
647 | ||
648 | *iv_off = n; | |
649 | ||
650 | return( 0 ); | |
651 | } | |
652 | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | |
653 | ||
654 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
655 | /* | |
656 | * Camellia-CTR buffer encryption/decryption | |
657 | */ | |
658 | int mbedtls_camellia_crypt_ctr( mbedtls_camellia_context *ctx, | |
659 | size_t length, | |
660 | size_t *nc_off, | |
661 | unsigned char nonce_counter[16], | |
662 | unsigned char stream_block[16], | |
663 | const unsigned char *input, | |
664 | unsigned char *output ) | |
665 | { | |
666 | int c, i; | |
667 | size_t n = *nc_off; | |
668 | ||
669 | while( length-- ) | |
670 | { | |
671 | if( n == 0 ) { | |
672 | mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, nonce_counter, | |
673 | stream_block ); | |
674 | ||
675 | for( i = 16; i > 0; i-- ) | |
676 | if( ++nonce_counter[i - 1] != 0 ) | |
677 | break; | |
678 | } | |
679 | c = *input++; | |
680 | *output++ = (unsigned char)( c ^ stream_block[n] ); | |
681 | ||
682 | n = ( n + 1 ) & 0x0F; | |
683 | } | |
684 | ||
685 | *nc_off = n; | |
686 | ||
687 | return( 0 ); | |
688 | } | |
689 | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | |
690 | #endif /* !MBEDTLS_CAMELLIA_ALT */ | |
691 | ||
692 | #if defined(MBEDTLS_SELF_TEST) | |
693 | ||
694 | /* | |
695 | * Camellia test vectors from: | |
696 | * | |
697 | * http://info.isl.ntt.co.jp/crypt/eng/camellia/technology.html: | |
698 | * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/intermediate.txt | |
699 | * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/t_camellia.txt | |
700 | * (For each bitlength: Key 0, Nr 39) | |
701 | */ | |
702 | #define CAMELLIA_TESTS_ECB 2 | |
703 | ||
704 | static const unsigned char camellia_test_ecb_key[3][CAMELLIA_TESTS_ECB][32] = | |
705 | { | |
706 | { | |
707 | { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, | |
708 | 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 }, | |
709 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
710 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } | |
711 | }, | |
712 | { | |
713 | { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, | |
714 | 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, | |
715 | 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 }, | |
716 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
717 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
718 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } | |
719 | }, | |
720 | { | |
721 | { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, | |
722 | 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, | |
723 | 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, | |
724 | 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff }, | |
725 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
726 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
727 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
728 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } | |
729 | }, | |
730 | }; | |
731 | ||
732 | static const unsigned char camellia_test_ecb_plain[CAMELLIA_TESTS_ECB][16] = | |
733 | { | |
734 | { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, | |
735 | 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 }, | |
736 | { 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, | |
737 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } | |
738 | }; | |
739 | ||
740 | static const unsigned char camellia_test_ecb_cipher[3][CAMELLIA_TESTS_ECB][16] = | |
741 | { | |
742 | { | |
743 | { 0x67, 0x67, 0x31, 0x38, 0x54, 0x96, 0x69, 0x73, | |
744 | 0x08, 0x57, 0x06, 0x56, 0x48, 0xea, 0xbe, 0x43 }, | |
745 | { 0x38, 0x3C, 0x6C, 0x2A, 0xAB, 0xEF, 0x7F, 0xDE, | |
746 | 0x25, 0xCD, 0x47, 0x0B, 0xF7, 0x74, 0xA3, 0x31 } | |
747 | }, | |
748 | { | |
749 | { 0xb4, 0x99, 0x34, 0x01, 0xb3, 0xe9, 0x96, 0xf8, | |
750 | 0x4e, 0xe5, 0xce, 0xe7, 0xd7, 0x9b, 0x09, 0xb9 }, | |
751 | { 0xD1, 0x76, 0x3F, 0xC0, 0x19, 0xD7, 0x7C, 0xC9, | |
752 | 0x30, 0xBF, 0xF2, 0xA5, 0x6F, 0x7C, 0x93, 0x64 } | |
753 | }, | |
754 | { | |
755 | { 0x9a, 0xcc, 0x23, 0x7d, 0xff, 0x16, 0xd7, 0x6c, | |
756 | 0x20, 0xef, 0x7c, 0x91, 0x9e, 0x3a, 0x75, 0x09 }, | |
757 | { 0x05, 0x03, 0xFB, 0x10, 0xAB, 0x24, 0x1E, 0x7C, | |
758 | 0xF4, 0x5D, 0x8C, 0xDE, 0xEE, 0x47, 0x43, 0x35 } | |
759 | } | |
760 | }; | |
761 | ||
762 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
763 | #define CAMELLIA_TESTS_CBC 3 | |
764 | ||
765 | static const unsigned char camellia_test_cbc_key[3][32] = | |
766 | { | |
767 | { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, | |
768 | 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C } | |
769 | , | |
770 | { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52, | |
771 | 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5, | |
772 | 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B } | |
773 | , | |
774 | { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE, | |
775 | 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81, | |
776 | 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7, | |
777 | 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 } | |
778 | }; | |
779 | ||
780 | static const unsigned char camellia_test_cbc_iv[16] = | |
781 | ||
782 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
783 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F } | |
784 | ; | |
785 | ||
786 | static const unsigned char camellia_test_cbc_plain[CAMELLIA_TESTS_CBC][16] = | |
787 | { | |
788 | { 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96, | |
789 | 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A }, | |
790 | { 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C, | |
791 | 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51 }, | |
792 | { 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11, | |
793 | 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF } | |
794 | ||
795 | }; | |
796 | ||
797 | static const unsigned char camellia_test_cbc_cipher[3][CAMELLIA_TESTS_CBC][16] = | |
798 | { | |
799 | { | |
800 | { 0x16, 0x07, 0xCF, 0x49, 0x4B, 0x36, 0xBB, 0xF0, | |
801 | 0x0D, 0xAE, 0xB0, 0xB5, 0x03, 0xC8, 0x31, 0xAB }, | |
802 | { 0xA2, 0xF2, 0xCF, 0x67, 0x16, 0x29, 0xEF, 0x78, | |
803 | 0x40, 0xC5, 0xA5, 0xDF, 0xB5, 0x07, 0x48, 0x87 }, | |
804 | { 0x0F, 0x06, 0x16, 0x50, 0x08, 0xCF, 0x8B, 0x8B, | |
805 | 0x5A, 0x63, 0x58, 0x63, 0x62, 0x54, 0x3E, 0x54 } | |
806 | }, | |
807 | { | |
808 | { 0x2A, 0x48, 0x30, 0xAB, 0x5A, 0xC4, 0xA1, 0xA2, | |
809 | 0x40, 0x59, 0x55, 0xFD, 0x21, 0x95, 0xCF, 0x93 }, | |
810 | { 0x5D, 0x5A, 0x86, 0x9B, 0xD1, 0x4C, 0xE5, 0x42, | |
811 | 0x64, 0xF8, 0x92, 0xA6, 0xDD, 0x2E, 0xC3, 0xD5 }, | |
812 | { 0x37, 0xD3, 0x59, 0xC3, 0x34, 0x98, 0x36, 0xD8, | |
813 | 0x84, 0xE3, 0x10, 0xAD, 0xDF, 0x68, 0xC4, 0x49 } | |
814 | }, | |
815 | { | |
816 | { 0xE6, 0xCF, 0xA3, 0x5F, 0xC0, 0x2B, 0x13, 0x4A, | |
817 | 0x4D, 0x2C, 0x0B, 0x67, 0x37, 0xAC, 0x3E, 0xDA }, | |
818 | { 0x36, 0xCB, 0xEB, 0x73, 0xBD, 0x50, 0x4B, 0x40, | |
819 | 0x70, 0xB1, 0xB7, 0xDE, 0x2B, 0x21, 0xEB, 0x50 }, | |
820 | { 0xE3, 0x1A, 0x60, 0x55, 0x29, 0x7D, 0x96, 0xCA, | |
821 | 0x33, 0x30, 0xCD, 0xF1, 0xB1, 0x86, 0x0A, 0x83 } | |
822 | } | |
823 | }; | |
824 | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | |
825 | ||
826 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
827 | /* | |
828 | * Camellia-CTR test vectors from: | |
829 | * | |
830 | * http://www.faqs.org/rfcs/rfc5528.html | |
831 | */ | |
832 | ||
833 | static const unsigned char camellia_test_ctr_key[3][16] = | |
834 | { | |
835 | { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC, | |
836 | 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E }, | |
837 | { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7, | |
838 | 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 }, | |
839 | { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8, | |
840 | 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC } | |
841 | }; | |
842 | ||
843 | static const unsigned char camellia_test_ctr_nonce_counter[3][16] = | |
844 | { | |
845 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, | |
846 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, | |
847 | { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59, | |
848 | 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 }, | |
849 | { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F, | |
850 | 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 } | |
851 | }; | |
852 | ||
853 | static const unsigned char camellia_test_ctr_pt[3][48] = | |
854 | { | |
855 | { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62, | |
856 | 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 }, | |
857 | ||
858 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
859 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, | |
860 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
861 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F }, | |
862 | ||
863 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
864 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, | |
865 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
866 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, | |
867 | 0x20, 0x21, 0x22, 0x23 } | |
868 | }; | |
869 | ||
870 | static const unsigned char camellia_test_ctr_ct[3][48] = | |
871 | { | |
872 | { 0xD0, 0x9D, 0xC2, 0x9A, 0x82, 0x14, 0x61, 0x9A, | |
873 | 0x20, 0x87, 0x7C, 0x76, 0xDB, 0x1F, 0x0B, 0x3F }, | |
874 | { 0xDB, 0xF3, 0xC7, 0x8D, 0xC0, 0x83, 0x96, 0xD4, | |
875 | 0xDA, 0x7C, 0x90, 0x77, 0x65, 0xBB, 0xCB, 0x44, | |
876 | 0x2B, 0x8E, 0x8E, 0x0F, 0x31, 0xF0, 0xDC, 0xA7, | |
877 | 0x2C, 0x74, 0x17, 0xE3, 0x53, 0x60, 0xE0, 0x48 }, | |
878 | { 0xB1, 0x9D, 0x1F, 0xCD, 0xCB, 0x75, 0xEB, 0x88, | |
879 | 0x2F, 0x84, 0x9C, 0xE2, 0x4D, 0x85, 0xCF, 0x73, | |
880 | 0x9C, 0xE6, 0x4B, 0x2B, 0x5C, 0x9D, 0x73, 0xF1, | |
881 | 0x4F, 0x2D, 0x5D, 0x9D, 0xCE, 0x98, 0x89, 0xCD, | |
882 | 0xDF, 0x50, 0x86, 0x96 } | |
883 | }; | |
884 | ||
885 | static const int camellia_test_ctr_len[3] = | |
886 | { 16, 32, 36 }; | |
887 | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | |
888 | ||
889 | /* | |
890 | * Checkup routine | |
891 | */ | |
892 | int mbedtls_camellia_self_test( int verbose ) | |
893 | { | |
894 | int i, j, u, v; | |
895 | unsigned char key[32]; | |
896 | unsigned char buf[64]; | |
897 | unsigned char src[16]; | |
898 | unsigned char dst[16]; | |
899 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
900 | unsigned char iv[16]; | |
901 | #endif | |
902 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
903 | size_t offset, len; | |
904 | unsigned char nonce_counter[16]; | |
905 | unsigned char stream_block[16]; | |
906 | #endif | |
907 | ||
908 | mbedtls_camellia_context ctx; | |
909 | ||
910 | memset( key, 0, 32 ); | |
911 | ||
912 | for( j = 0; j < 6; j++ ) { | |
913 | u = j >> 1; | |
914 | v = j & 1; | |
915 | ||
916 | if( verbose != 0 ) | |
917 | mbedtls_printf( " CAMELLIA-ECB-%3d (%s): ", 128 + u * 64, | |
918 | (v == MBEDTLS_CAMELLIA_DECRYPT) ? "dec" : "enc"); | |
919 | ||
920 | for( i = 0; i < CAMELLIA_TESTS_ECB; i++ ) { | |
921 | memcpy( key, camellia_test_ecb_key[u][i], 16 + 8 * u ); | |
922 | ||
923 | if( v == MBEDTLS_CAMELLIA_DECRYPT ) { | |
924 | mbedtls_camellia_setkey_dec( &ctx, key, 128 + u * 64 ); | |
925 | memcpy( src, camellia_test_ecb_cipher[u][i], 16 ); | |
926 | memcpy( dst, camellia_test_ecb_plain[i], 16 ); | |
927 | } else { /* MBEDTLS_CAMELLIA_ENCRYPT */ | |
928 | mbedtls_camellia_setkey_enc( &ctx, key, 128 + u * 64 ); | |
929 | memcpy( src, camellia_test_ecb_plain[i], 16 ); | |
930 | memcpy( dst, camellia_test_ecb_cipher[u][i], 16 ); | |
931 | } | |
932 | ||
933 | mbedtls_camellia_crypt_ecb( &ctx, v, src, buf ); | |
934 | ||
935 | if( memcmp( buf, dst, 16 ) != 0 ) | |
936 | { | |
937 | if( verbose != 0 ) | |
938 | mbedtls_printf( "failed\n" ); | |
939 | ||
940 | return( 1 ); | |
941 | } | |
942 | } | |
943 | ||
944 | if( verbose != 0 ) | |
945 | mbedtls_printf( "passed\n" ); | |
946 | } | |
947 | ||
948 | if( verbose != 0 ) | |
949 | mbedtls_printf( "\n" ); | |
950 | ||
951 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
952 | /* | |
953 | * CBC mode | |
954 | */ | |
955 | for( j = 0; j < 6; j++ ) | |
956 | { | |
957 | u = j >> 1; | |
958 | v = j & 1; | |
959 | ||
960 | if( verbose != 0 ) | |
961 | mbedtls_printf( " CAMELLIA-CBC-%3d (%s): ", 128 + u * 64, | |
962 | ( v == MBEDTLS_CAMELLIA_DECRYPT ) ? "dec" : "enc" ); | |
963 | ||
964 | memcpy( src, camellia_test_cbc_iv, 16 ); | |
965 | memcpy( dst, camellia_test_cbc_iv, 16 ); | |
966 | memcpy( key, camellia_test_cbc_key[u], 16 + 8 * u ); | |
967 | ||
968 | if( v == MBEDTLS_CAMELLIA_DECRYPT ) { | |
969 | mbedtls_camellia_setkey_dec( &ctx, key, 128 + u * 64 ); | |
970 | } else { | |
971 | mbedtls_camellia_setkey_enc( &ctx, key, 128 + u * 64 ); | |
972 | } | |
973 | ||
974 | for( i = 0; i < CAMELLIA_TESTS_CBC; i++ ) { | |
975 | ||
976 | if( v == MBEDTLS_CAMELLIA_DECRYPT ) { | |
977 | memcpy( iv , src, 16 ); | |
978 | memcpy( src, camellia_test_cbc_cipher[u][i], 16 ); | |
979 | memcpy( dst, camellia_test_cbc_plain[i], 16 ); | |
980 | } else { /* MBEDTLS_CAMELLIA_ENCRYPT */ | |
981 | memcpy( iv , dst, 16 ); | |
982 | memcpy( src, camellia_test_cbc_plain[i], 16 ); | |
983 | memcpy( dst, camellia_test_cbc_cipher[u][i], 16 ); | |
984 | } | |
985 | ||
986 | mbedtls_camellia_crypt_cbc( &ctx, v, 16, iv, src, buf ); | |
987 | ||
988 | if( memcmp( buf, dst, 16 ) != 0 ) | |
989 | { | |
990 | if( verbose != 0 ) | |
991 | mbedtls_printf( "failed\n" ); | |
992 | ||
993 | return( 1 ); | |
994 | } | |
995 | } | |
996 | ||
997 | if( verbose != 0 ) | |
998 | mbedtls_printf( "passed\n" ); | |
999 | } | |
1000 | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | |
1001 | ||
1002 | if( verbose != 0 ) | |
1003 | mbedtls_printf( "\n" ); | |
1004 | ||
1005 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
1006 | /* | |
1007 | * CTR mode | |
1008 | */ | |
1009 | for( i = 0; i < 6; i++ ) | |
1010 | { | |
1011 | u = i >> 1; | |
1012 | v = i & 1; | |
1013 | ||
1014 | if( verbose != 0 ) | |
1015 | mbedtls_printf( " CAMELLIA-CTR-128 (%s): ", | |
1016 | ( v == MBEDTLS_CAMELLIA_DECRYPT ) ? "dec" : "enc" ); | |
1017 | ||
1018 | memcpy( nonce_counter, camellia_test_ctr_nonce_counter[u], 16 ); | |
1019 | memcpy( key, camellia_test_ctr_key[u], 16 ); | |
1020 | ||
1021 | offset = 0; | |
1022 | mbedtls_camellia_setkey_enc( &ctx, key, 128 ); | |
1023 | ||
1024 | if( v == MBEDTLS_CAMELLIA_DECRYPT ) | |
1025 | { | |
1026 | len = camellia_test_ctr_len[u]; | |
1027 | memcpy( buf, camellia_test_ctr_ct[u], len ); | |
1028 | ||
1029 | mbedtls_camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, | |
1030 | buf, buf ); | |
1031 | ||
1032 | if( memcmp( buf, camellia_test_ctr_pt[u], len ) != 0 ) | |
1033 | { | |
1034 | if( verbose != 0 ) | |
1035 | mbedtls_printf( "failed\n" ); | |
1036 | ||
1037 | return( 1 ); | |
1038 | } | |
1039 | } | |
1040 | else | |
1041 | { | |
1042 | len = camellia_test_ctr_len[u]; | |
1043 | memcpy( buf, camellia_test_ctr_pt[u], len ); | |
1044 | ||
1045 | mbedtls_camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, | |
1046 | buf, buf ); | |
1047 | ||
1048 | if( memcmp( buf, camellia_test_ctr_ct[u], len ) != 0 ) | |
1049 | { | |
1050 | if( verbose != 0 ) | |
1051 | mbedtls_printf( "failed\n" ); | |
1052 | ||
1053 | return( 1 ); | |
1054 | } | |
1055 | } | |
1056 | ||
1057 | if( verbose != 0 ) | |
1058 | mbedtls_printf( "passed\n" ); | |
1059 | } | |
1060 | ||
1061 | if( verbose != 0 ) | |
1062 | mbedtls_printf( "\n" ); | |
1063 | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | |
1064 | ||
1065 | return( 0 ); | |
1066 | } | |
1067 | ||
1068 | #endif /* MBEDTLS_SELF_TEST */ | |
1069 | ||
1070 | #endif /* MBEDTLS_CAMELLIA_C */ |