1 /*
2 * This file is part of the openHiTLS project.
3 *
4 * openHiTLS is licensed under the Mulan PSL v2.
5 * You can use this software according to the terms and conditions of the Mulan PSL v2.
6 * You may obtain a copy of Mulan PSL v2 at:
7 *
8 * http://license.coscl.org.cn/MulanPSL2
9 *
10 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
11 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
12 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
13 * See the Mulan PSL v2 for more details.
14 */
15
16 #include "hitls_build.h"
17 #ifdef HITLS_CRYPTO_AES
18
19 #include "securec.h"
20 #include "bsl_err_internal.h"
21 #include "crypt_utils.h"
22 #include "crypt_errno.h"
23 #include "bsl_sal.h"
24 #include "crypt_aes.h"
25 #include "crypt_aes_tbox.h"
26
27 static const uint8_t INV_S[256] = {
28 0x52U, 0x09U, 0x6aU, 0xd5U, 0x30U, 0x36U, 0xa5U, 0x38U, 0xbfU, 0x40U, 0xa3U, 0x9eU, 0x81U, 0xf3U, 0xd7U, 0xfbU,
29 0x7cU, 0xe3U, 0x39U, 0x82U, 0x9bU, 0x2fU, 0xffU, 0x87U, 0x34U, 0x8eU, 0x43U, 0x44U, 0xc4U, 0xdeU, 0xe9U, 0xcbU,
30 0x54U, 0x7bU, 0x94U, 0x32U, 0xa6U, 0xc2U, 0x23U, 0x3dU, 0xeeU, 0x4cU, 0x95U, 0x0bU, 0x42U, 0xfaU, 0xc3U, 0x4eU,
31 0x08U, 0x2eU, 0xa1U, 0x66U, 0x28U, 0xd9U, 0x24U, 0xb2U, 0x76U, 0x5bU, 0xa2U, 0x49U, 0x6dU, 0x8bU, 0xd1U, 0x25U,
32 0x72U, 0xf8U, 0xf6U, 0x64U, 0x86U, 0x68U, 0x98U, 0x16U, 0xd4U, 0xa4U, 0x5cU, 0xccU, 0x5dU, 0x65U, 0xb6U, 0x92U,
33 0x6cU, 0x70U, 0x48U, 0x50U, 0xfdU, 0xedU, 0xb9U, 0xdaU, 0x5eU, 0x15U, 0x46U, 0x57U, 0xa7U, 0x8dU, 0x9dU, 0x84U,
34 0x90U, 0xd8U, 0xabU, 0x00U, 0x8cU, 0xbcU, 0xd3U, 0x0aU, 0xf7U, 0xe4U, 0x58U, 0x05U, 0xb8U, 0xb3U, 0x45U, 0x06U,
35 0xd0U, 0x2cU, 0x1eU, 0x8fU, 0xcaU, 0x3fU, 0x0fU, 0x02U, 0xc1U, 0xafU, 0xbdU, 0x03U, 0x01U, 0x13U, 0x8aU, 0x6bU,
36 0x3aU, 0x91U, 0x11U, 0x41U, 0x4fU, 0x67U, 0xdcU, 0xeaU, 0x97U, 0xf2U, 0xcfU, 0xceU, 0xf0U, 0xb4U, 0xe6U, 0x73U,
37 0x96U, 0xacU, 0x74U, 0x22U, 0xe7U, 0xadU, 0x35U, 0x85U, 0xe2U, 0xf9U, 0x37U, 0xe8U, 0x1cU, 0x75U, 0xdfU, 0x6eU,
38 0x47U, 0xf1U, 0x1aU, 0x71U, 0x1dU, 0x29U, 0xc5U, 0x89U, 0x6fU, 0xb7U, 0x62U, 0x0eU, 0xaaU, 0x18U, 0xbeU, 0x1bU,
39 0xfcU, 0x56U, 0x3eU, 0x4bU, 0xc6U, 0xd2U, 0x79U, 0x20U, 0x9aU, 0xdbU, 0xc0U, 0xfeU, 0x78U, 0xcdU, 0x5aU, 0xf4U,
40 0x1fU, 0xddU, 0xa8U, 0x33U, 0x88U, 0x07U, 0xc7U, 0x31U, 0xb1U, 0x12U, 0x10U, 0x59U, 0x27U, 0x80U, 0xecU, 0x5fU,
41 0x60U, 0x51U, 0x7fU, 0xa9U, 0x19U, 0xb5U, 0x4aU, 0x0dU, 0x2dU, 0xe5U, 0x7aU, 0x9fU, 0x93U, 0xc9U, 0x9cU, 0xefU,
42 0xa0U, 0xe0U, 0x3bU, 0x4dU, 0xaeU, 0x2aU, 0xf5U, 0xb0U, 0xc8U, 0xebU, 0xbbU, 0x3cU, 0x83U, 0x53U, 0x99U, 0x61U,
43 0x17U, 0x2bU, 0x04U, 0x7eU, 0xbaU, 0x77U, 0xd6U, 0x26U, 0xe1U, 0x69U, 0x14U, 0x63U, 0x55U, 0x21U, 0x0cU, 0x7dU,
44 };
45
46 static const uint32_t RCON[] = {
47 0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000, 0x20000000, 0x40000000, 0x80000000, 0x1B000000,
48 0x36000000,
49 };
50
51 #ifndef HITLS_CRYPTO_AES_PRECALC_TABLES
RoundConstArray(uint8_t val)52 uint32_t RoundConstArray(uint8_t val)
53 {
54 return RCON[val];
55 }
56
InvSubSbox(uint8_t val)57 uint8_t InvSubSbox(uint8_t val)
58 {
59 return INV_S[val];
60 }
61 #endif
62 #ifdef HITLS_CRYPTO_AES_PRECALC_TABLES
63 #define TESEARCH(t0, t1, t2, t3) \
64 (((uint32_t)TE2[((t0) >> 24)] & 0xff000000) ^ ((uint32_t)TE3[((t1) >> 16) & 0xff] & 0x00ff0000) ^ \
65 ((uint32_t)TE0[((t2) >> 8) & 0xff] & 0x0000ff00) ^ ((uint32_t)TE1[(t3) & 0xff] & 0x000000ff))
66
67 #define INVSSEARCH(t0, t1, t2, t3) \
68 (((uint32_t)INV_S[((t0) >> 24)] << 24) ^ ((uint32_t)INV_S[((t3) >> 16) & 0xff] << 16) ^ \
69 ((uint32_t)INV_S[((t2) >> 8) & 0xff] << 8) ^ ((uint32_t)INV_S[(t1) & 0xff]))
70
71 static const uint32_t TE0[256] = {
72 0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU,
73 0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U,
74 0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU,
75 0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU,
76 0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U,
77 0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU,
78 0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU,
79 0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU,
80 0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU,
81 0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU,
82 0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U,
83 0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU,
84 0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU,
85 0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U,
86 0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU,
87 0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU,
88 0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU,
89 0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU,
90 0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU,
91 0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U,
92 0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU,
93 0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU,
94 0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU,
95 0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU,
96 0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U,
97 0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U,
98 0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U,
99 0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U,
100 0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU,
101 0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U,
102 0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U,
103 0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU,
104 0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU,
105 0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U,
106 0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U,
107 0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U,
108 0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU,
109 0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U,
110 0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU,
111 0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U,
112 0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU,
113 0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U,
114 0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U,
115 0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU,
116 0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U,
117 0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U,
118 0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U,
119 0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U,
120 0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U,
121 0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U,
122 0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U,
123 0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U,
124 0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU,
125 0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U,
126 0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U,
127 0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U,
128 0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U,
129 0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U,
130 0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U,
131 0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU,
132 0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U,
133 0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U,
134 0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U,
135 0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU,
136 };
137 static const uint32_t TE1[256] = {
138 0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU,
139 0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U,
140 0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU,
141 0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U,
142 0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU,
143 0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U,
144 0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU,
145 0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U,
146 0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U,
147 0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU,
148 0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U,
149 0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U,
150 0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U,
151 0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU,
152 0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U,
153 0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U,
154 0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU,
155 0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U,
156 0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U,
157 0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U,
158 0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU,
159 0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU,
160 0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U,
161 0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU,
162 0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU,
163 0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U,
164 0xcf8a4545U, 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU,
165 0xf0a05050U, 0x44783c3cU, 0xba259f9fU, 0xe34ba8a8U,
166 0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, 0x8a058f8fU,
167 0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U,
168 0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U,
169 0x30201010U, 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U,
170 0x4c81cdcdU, 0x14180c0cU, 0x35261313U, 0x2fc3ececU,
171 0xe1be5f5fU, 0xa2359797U, 0xcc884444U, 0x392e1717U,
172 0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU,
173 0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U,
174 0xa0c06060U, 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU,
175 0x66442222U, 0x7e542a2aU, 0xab3b9090U, 0x830b8888U,
176 0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, 0x3c281414U,
177 0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU,
178 0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU,
179 0xdb924949U, 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU,
180 0x5d9fc2c2U, 0x6ebdd3d3U, 0xef43acacU, 0xa6c46262U,
181 0xa8399191U, 0xa4319595U, 0x37d3e4e4U, 0x8bf27979U,
182 0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU,
183 0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U,
184 0xb4d86c6cU, 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU,
185 0xafca6565U, 0x8ef47a7aU, 0xe947aeaeU, 0x18100808U,
186 0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, 0x725c2e2eU,
187 0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U,
188 0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU,
189 0xdd964b4bU, 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU,
190 0x90e07070U, 0x427c3e3eU, 0xc471b5b5U, 0xaacc6666U,
191 0xd8904848U, 0x05060303U, 0x01f7f6f6U, 0x121c0e0eU,
192 0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U,
193 0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU,
194 0x38d9e1e1U, 0x13ebf8f8U, 0xb32b9898U, 0x33221111U,
195 0xbbd26969U, 0x70a9d9d9U, 0x89078e8eU, 0xa7339494U,
196 0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, 0x20c9e9e9U,
197 0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU,
198 0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU,
199 0xda65bfbfU, 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U,
200 0xc3824141U, 0xb0299999U, 0x775a2d2dU, 0x111e0f0fU,
201 0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, 0x3a2c1616U,
202 };
203 static const uint32_t TE2[256] = {
204 0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU,
205 0xf20dfff2U, 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U,
206 0x30506030U, 0x01030201U, 0x67a9ce67U, 0x2b7d562bU,
207 0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, 0x769aec76U,
208 0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU,
209 0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U,
210 0xadec41adU, 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU,
211 0x9cbf239cU, 0xa4f753a4U, 0x7296e472U, 0xc05b9bc0U,
212 0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, 0x266a4c26U,
213 0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU,
214 0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U,
215 0x7193e271U, 0xd873abd8U, 0x31536231U, 0x153f2a15U,
216 0x040c0804U, 0xc75295c7U, 0x23654623U, 0xc35e9dc3U,
217 0x18283018U, 0x96a13796U, 0x050f0a05U, 0x9ab52f9aU,
218 0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U,
219 0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U,
220 0x091b1209U, 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU,
221 0x1b2d361bU, 0x6eb2dc6eU, 0x5aeeb45aU, 0xa0fb5ba0U,
222 0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, 0xb3ce7db3U,
223 0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U,
224 0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU,
225 0x20604020U, 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU,
226 0x6abed46aU, 0xcb468dcbU, 0xbed967beU, 0x394b7239U,
227 0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, 0xcf4a85cfU,
228 0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU,
229 0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U,
230 0x45cf8a45U, 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU,
231 0x50f0a050U, 0x3c44783cU, 0x9fba259fU, 0xa8e34ba8U,
232 0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, 0x8f8a058fU,
233 0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U,
234 0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U,
235 0x10302010U, 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U,
236 0xcd4c81cdU, 0x0c14180cU, 0x13352613U, 0xec2fc3ecU,
237 0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, 0x17392e17U,
238 0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU,
239 0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U,
240 0x60a0c060U, 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU,
241 0x22664422U, 0x2a7e542aU, 0x90ab3b90U, 0x88830b88U,
242 0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, 0x143c2814U,
243 0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU,
244 0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU,
245 0x49db9249U, 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU,
246 0xc25d9fc2U, 0xd36ebdd3U, 0xacef43acU, 0x62a6c462U,
247 0x91a83991U, 0x95a43195U, 0xe437d3e4U, 0x798bf279U,
248 0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU,
249 0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U,
250 0x6cb4d86cU, 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU,
251 0x65afca65U, 0x7a8ef47aU, 0xaee947aeU, 0x08181008U,
252 0xbad56fbaU, 0x7888f078U, 0x256f4a25U, 0x2e725c2eU,
253 0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U,
254 0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU,
255 0x4bdd964bU, 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU,
256 0x7090e070U, 0x3e427c3eU, 0xb5c471b5U, 0x66aacc66U,
257 0x48d89048U, 0x03050603U, 0xf601f7f6U, 0x0e121c0eU,
258 0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U,
259 0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU,
260 0xe138d9e1U, 0xf813ebf8U, 0x98b32b98U, 0x11332211U,
261 0x69bbd269U, 0xd970a9d9U, 0x8e89078eU, 0x94a73394U,
262 0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, 0xe920c9e9U,
263 0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU,
264 0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU,
265 0xbfda65bfU, 0xe631d7e6U, 0x42c68442U, 0x68b8d068U,
266 0x41c38241U, 0x99b02999U, 0x2d775a2dU, 0x0f111e0fU,
267 0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, 0x163a2c16U,
268 };
269 static const uint32_t TE3[256] = {
270 0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U,
271 0xf2f20dffU, 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U,
272 0x30305060U, 0x01010302U, 0x6767a9ceU, 0x2b2b7d56U,
273 0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, 0x76769aecU,
274 0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU,
275 0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU,
276 0xadadec41U, 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U,
277 0x9c9cbf23U, 0xa4a4f753U, 0x727296e4U, 0xc0c05b9bU,
278 0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, 0x26266a4cU,
279 0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U,
280 0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U,
281 0x717193e2U, 0xd8d873abU, 0x31315362U, 0x15153f2aU,
282 0x04040c08U, 0xc7c75295U, 0x23236546U, 0xc3c35e9dU,
283 0x18182830U, 0x9696a137U, 0x05050f0aU, 0x9a9ab52fU,
284 0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU,
285 0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU,
286 0x09091b12U, 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U,
287 0x1b1b2d36U, 0x6e6eb2dcU, 0x5a5aeeb4U, 0xa0a0fb5bU,
288 0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, 0xb3b3ce7dU,
289 0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U,
290 0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U,
291 0x20206040U, 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U,
292 0x6a6abed4U, 0xcbcb468dU, 0xbebed967U, 0x39394b72U,
293 0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, 0xcfcf4a85U,
294 0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU,
295 0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U,
296 0x4545cf8aU, 0xf9f910e9U, 0x02020604U, 0x7f7f81feU,
297 0x5050f0a0U, 0x3c3c4478U, 0x9f9fba25U, 0xa8a8e34bU,
298 0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, 0x8f8f8a05U,
299 0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U,
300 0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U,
301 0x10103020U, 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU,
302 0xcdcd4c81U, 0x0c0c1418U, 0x13133526U, 0xecec2fc3U,
303 0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, 0x1717392eU,
304 0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU,
305 0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U,
306 0x6060a0c0U, 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U,
307 0x22226644U, 0x2a2a7e54U, 0x9090ab3bU, 0x8888830bU,
308 0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, 0x14143c28U,
309 0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU,
310 0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U,
311 0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U,
312 0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U,
313 0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U,
314 0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU,
315 0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U,
316 0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU,
317 0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U,
318 0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU,
319 0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U,
320 0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU,
321 0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU,
322 0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU,
323 0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU,
324 0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U,
325 0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U,
326 0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U,
327 0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U,
328 0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U,
329 0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U,
330 0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU,
331 0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U,
332 0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU,
333 0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU,
334 };
335
336 static const uint32_t TD0[256] = {
337 0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U,
338 0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U,
339 0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U,
340 0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU,
341 0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U,
342 0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U,
343 0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU,
344 0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U,
345 0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU,
346 0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U,
347 0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U,
348 0xb16477e0U, 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U,
349 0x70486858U, 0x8f45fd19U, 0x94de6c87U, 0x527bf8b7U,
350 0xab73d323U, 0x724b02e2U, 0xe31f8f57U, 0x6655ab2aU,
351 0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U,
352 0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU,
353 0x8acf1c2bU, 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U,
354 0x65daf4cdU, 0x0605bed5U, 0xd134621fU, 0xc4a6fe8aU,
355 0x342e539dU, 0xa2f355a0U, 0x058ae132U, 0xa4f6eb75U,
356 0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U,
357 0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U,
358 0x91548db5U, 0x71c45d05U, 0x0406d46fU, 0x605015ffU,
359 0x1998fb24U, 0xd6bde997U, 0x894043ccU, 0x67d99e77U,
360 0xb0e842bdU, 0x07898b88U, 0xe7195b38U, 0x79c8eedbU,
361 0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U,
362 0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU,
363 0xfd0efffbU, 0x0f853856U, 0x3daed51eU, 0x362d3927U,
364 0x0a0fd964U, 0x685ca621U, 0x9b5b54d1U, 0x24362e3aU,
365 0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, 0x1b9b919eU,
366 0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U,
367 0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU,
368 0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U,
369 0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU,
370 0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U,
371 0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U,
372 0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U,
373 0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU,
374 0x1d9e2f4bU, 0xdcb230f3U, 0x0d8652ecU, 0x77c1e3d0U,
375 0x2bb3166cU, 0xa970b999U, 0x119448faU, 0x47e96422U,
376 0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU,
377 0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U,
378 0xa6f581cfU, 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U,
379 0x2c3a9de4U, 0x5078920dU, 0x6a5fcc9bU, 0x547e4662U,
380 0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, 0x82c3aff5U,
381 0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U,
382 0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU,
383 0xcd267809U, 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U,
384 0xe6956e65U, 0xaaffe67eU, 0x21bccf08U, 0xef15e8e6U,
385 0xbae79bd9U, 0x4a6f36ceU, 0xea9f09d4U, 0x29b07cd6U,
386 0x31a4b2afU, 0x2a3f2331U, 0xc6a59430U, 0x35a266c0U,
387 0x744ebc37U, 0xfc82caa6U, 0xe090d0b0U, 0x33a7d815U,
388 0xf104984aU, 0x41ecdaf7U, 0x7fcd500eU, 0x1791f62fU,
389 0x764dd68dU, 0x43efb04dU, 0xccaa4d54U, 0xe49604dfU,
390 0x9ed1b5e3U, 0x4c6a881bU, 0xc12c1fb8U, 0x4665517fU,
391 0x9d5eea04U, 0x018c355dU, 0xfa877473U, 0xfb0b412eU,
392 0xb3671d5aU, 0x92dbd252U, 0xe9105633U, 0x6dd64713U,
393 0x9ad7618cU, 0x37a10c7aU, 0x59f8148eU, 0xeb133c89U,
394 0xcea927eeU, 0xb761c935U, 0xe11ce5edU, 0x7a47b13cU,
395 0x9cd2df59U, 0x55f2733fU, 0x1814ce79U, 0x73c737bfU,
396 0x53f7cdeaU, 0x5ffdaa5bU, 0xdf3d6f14U, 0x7844db86U,
397 0xcaaff381U, 0xb968c43eU, 0x3824342cU, 0xc2a3405fU,
398 0x161dc372U, 0xbce2250cU, 0x283c498bU, 0xff0d9541U,
399 0x39a80171U, 0x080cb3deU, 0xd8b4e49cU, 0x6456c190U,
400 0x7bcb8461U, 0xd532b670U, 0x486c5c74U, 0xd0b85742U,
401 };
402 static const uint32_t TD1[256] = {
403 0x5051f4a7U, 0x537e4165U, 0xc31a17a4U, 0x963a275eU,
404 0xcb3bab6bU, 0xf11f9d45U, 0xabacfa58U, 0x934be303U,
405 0x552030faU, 0xf6ad766dU, 0x9188cc76U, 0x25f5024cU,
406 0xfc4fe5d7U, 0xd7c52acbU, 0x80263544U, 0x8fb562a3U,
407 0x49deb15aU, 0x6725ba1bU, 0x9845ea0eU, 0xe15dfec0U,
408 0x02c32f75U, 0x12814cf0U, 0xa38d4697U, 0xc66bd3f9U,
409 0xe7038f5fU, 0x9515929cU, 0xebbf6d7aU, 0xda955259U,
410 0x2dd4be83U, 0xd3587421U, 0x2949e069U, 0x448ec9c8U,
411 0x6a75c289U, 0x78f48e79U, 0x6b99583eU, 0xdd27b971U,
412 0xb6bee14fU, 0x17f088adU, 0x66c920acU, 0xb47dce3aU,
413 0x1863df4aU, 0x82e51a31U, 0x60975133U, 0x4562537fU,
414 0xe0b16477U, 0x84bb6baeU, 0x1cfe81a0U, 0x94f9082bU,
415 0x58704868U, 0x198f45fdU, 0x8794de6cU, 0xb7527bf8U,
416 0x23ab73d3U, 0xe2724b02U, 0x57e31f8fU, 0x2a6655abU,
417 0x07b2eb28U, 0x032fb5c2U, 0x9a86c57bU, 0xa5d33708U,
418 0xf2302887U, 0xb223bfa5U, 0xba02036aU, 0x5ced1682U,
419 0x2b8acf1cU, 0x92a779b4U, 0xf0f307f2U, 0xa14e69e2U,
420 0xcd65daf4U, 0xd50605beU, 0x1fd13462U, 0x8ac4a6feU,
421 0x9d342e53U, 0xa0a2f355U, 0x32058ae1U, 0x75a4f6ebU,
422 0x390b83ecU, 0xaa4060efU, 0x065e719fU, 0x51bd6e10U,
423 0xf93e218aU, 0x3d96dd06U, 0xaedd3e05U, 0x464de6bdU,
424 0xb591548dU, 0x0571c45dU, 0x6f0406d4U, 0xff605015U,
425 0x241998fbU, 0x97d6bde9U, 0xcc894043U, 0x7767d99eU,
426 0xbdb0e842U, 0x8807898bU, 0x38e7195bU, 0xdb79c8eeU,
427 0x47a17c0aU, 0xe97c420fU, 0xc9f8841eU, 0x00000000U,
428 0x83098086U, 0x48322bedU, 0xac1e1170U, 0x4e6c5a72U,
429 0xfbfd0effU, 0x560f8538U, 0x1e3daed5U, 0x27362d39U,
430 0x640a0fd9U, 0x21685ca6U, 0xd19b5b54U, 0x3a24362eU,
431 0xb10c0a67U, 0x0f9357e7U, 0xd2b4ee96U, 0x9e1b9b91U,
432 0x4f80c0c5U, 0xa261dc20U, 0x695a774bU, 0x161c121aU,
433 0x0ae293baU, 0xe5c0a02aU, 0x433c22e0U, 0x1d121b17U,
434 0x0b0e090dU, 0xadf28bc7U, 0xb92db6a8U, 0xc8141ea9U,
435 0x8557f119U, 0x4caf7507U, 0xbbee99ddU, 0xfda37f60U,
436 0x9ff70126U, 0xbc5c72f5U, 0xc544663bU, 0x345bfb7eU,
437 0x768b4329U, 0xdccb23c6U, 0x68b6edfcU, 0x63b8e4f1U,
438 0xcad731dcU, 0x10426385U, 0x40139722U, 0x2084c611U,
439 0x7d854a24U, 0xf8d2bb3dU, 0x11aef932U, 0x6dc729a1U,
440 0x4b1d9e2fU, 0xf3dcb230U, 0xec0d8652U, 0xd077c1e3U,
441 0x6c2bb316U, 0x99a970b9U, 0xfa119448U, 0x2247e964U,
442 0xc4a8fc8cU, 0x1aa0f03fU, 0xd8567d2cU, 0xef223390U,
443 0xc787494eU, 0xc1d938d1U, 0xfe8ccaa2U, 0x3698d40bU,
444 0xcfa6f581U, 0x28a57adeU, 0x26dab78eU, 0xa43fadbfU,
445 0xe42c3a9dU, 0x0d507892U, 0x9b6a5fccU, 0x62547e46U,
446 0xc2f68d13U, 0xe890d8b8U, 0x5e2e39f7U, 0xf582c3afU,
447 0xbe9f5d80U, 0x7c69d093U, 0xa96fd52dU, 0xb3cf2512U,
448 0x3bc8ac99U, 0xa710187dU, 0x6ee89c63U, 0x7bdb3bbbU,
449 0x09cd2678U, 0xf46e5918U, 0x01ec9ab7U, 0xa8834f9aU,
450 0x65e6956eU, 0x7eaaffe6U, 0x0821bccfU, 0xe6ef15e8U,
451 0xd9bae79bU, 0xce4a6f36U, 0xd4ea9f09U, 0xd629b07cU,
452 0xaf31a4b2U, 0x312a3f23U, 0x30c6a594U, 0xc035a266U,
453 0x37744ebcU, 0xa6fc82caU, 0xb0e090d0U, 0x1533a7d8U,
454 0x4af10498U, 0xf741ecdaU, 0x0e7fcd50U, 0x2f1791f6U,
455 0x8d764dd6U, 0x4d43efb0U, 0x54ccaa4dU, 0xdfe49604U,
456 0xe39ed1b5U, 0x1b4c6a88U, 0xb8c12c1fU, 0x7f466551U,
457 0x049d5eeaU, 0x5d018c35U, 0x73fa8774U, 0x2efb0b41U,
458 0x5ab3671dU, 0x5292dbd2U, 0x33e91056U, 0x136dd647U,
459 0x8c9ad761U, 0x7a37a10cU, 0x8e59f814U, 0x89eb133cU,
460 0xeecea927U, 0x35b761c9U, 0xede11ce5U, 0x3c7a47b1U,
461 0x599cd2dfU, 0x3f55f273U, 0x791814ceU, 0xbf73c737U,
462 0xea53f7cdU, 0x5b5ffdaaU, 0x14df3d6fU, 0x867844dbU,
463 0x81caaff3U, 0x3eb968c4U, 0x2c382434U, 0x5fc2a340U,
464 0x72161dc3U, 0x0cbce225U, 0x8b283c49U, 0x41ff0d95U,
465 0x7139a801U, 0xde080cb3U, 0x9cd8b4e4U, 0x906456c1U,
466 0x617bcb84U, 0x70d532b6U, 0x74486c5cU, 0x42d0b857U,
467 };
468 static const uint32_t TD2[256] = {
469 0xa75051f4U, 0x65537e41U, 0xa4c31a17U, 0x5e963a27U,
470 0x6bcb3babU, 0x45f11f9dU, 0x58abacfaU, 0x03934be3U,
471 0xfa552030U, 0x6df6ad76U, 0x769188ccU, 0x4c25f502U,
472 0xd7fc4fe5U, 0xcbd7c52aU, 0x44802635U, 0xa38fb562U,
473 0x5a49deb1U, 0x1b6725baU, 0x0e9845eaU, 0xc0e15dfeU,
474 0x7502c32fU, 0xf012814cU, 0x97a38d46U, 0xf9c66bd3U,
475 0x5fe7038fU, 0x9c951592U, 0x7aebbf6dU, 0x59da9552U,
476 0x832dd4beU, 0x21d35874U, 0x692949e0U, 0xc8448ec9U,
477 0x896a75c2U, 0x7978f48eU, 0x3e6b9958U, 0x71dd27b9U,
478 0x4fb6bee1U, 0xad17f088U, 0xac66c920U, 0x3ab47dceU,
479 0x4a1863dfU, 0x3182e51aU, 0x33609751U, 0x7f456253U,
480 0x77e0b164U, 0xae84bb6bU, 0xa01cfe81U, 0x2b94f908U,
481 0x68587048U, 0xfd198f45U, 0x6c8794deU, 0xf8b7527bU,
482 0xd323ab73U, 0x02e2724bU, 0x8f57e31fU, 0xab2a6655U,
483 0x2807b2ebU, 0xc2032fb5U, 0x7b9a86c5U, 0x08a5d337U,
484 0x87f23028U, 0xa5b223bfU, 0x6aba0203U, 0x825ced16U,
485 0x1c2b8acfU, 0xb492a779U, 0xf2f0f307U, 0xe2a14e69U,
486 0xf4cd65daU, 0xbed50605U, 0x621fd134U, 0xfe8ac4a6U,
487 0x539d342eU, 0x55a0a2f3U, 0xe132058aU, 0xeb75a4f6U,
488 0xec390b83U, 0xefaa4060U, 0x9f065e71U, 0x1051bd6eU,
489 0x8af93e21U, 0x063d96ddU, 0x05aedd3eU, 0xbd464de6U,
490 0x8db59154U, 0x5d0571c4U, 0xd46f0406U, 0x15ff6050U,
491 0xfb241998U, 0xe997d6bdU, 0x43cc8940U, 0x9e7767d9U,
492 0x42bdb0e8U, 0x8b880789U, 0x5b38e719U, 0xeedb79c8U,
493 0x0a47a17cU, 0x0fe97c42U, 0x1ec9f884U, 0x00000000U,
494 0x86830980U, 0xed48322bU, 0x70ac1e11U, 0x724e6c5aU,
495 0xfffbfd0eU, 0x38560f85U, 0xd51e3daeU, 0x3927362dU,
496 0xd9640a0fU, 0xa621685cU, 0x54d19b5bU, 0x2e3a2436U,
497 0x67b10c0aU, 0xe70f9357U, 0x96d2b4eeU, 0x919e1b9bU,
498 0xc54f80c0U, 0x20a261dcU, 0x4b695a77U, 0x1a161c12U,
499 0xba0ae293U, 0x2ae5c0a0U, 0xe0433c22U, 0x171d121bU,
500 0x0d0b0e09U, 0xc7adf28bU, 0xa8b92db6U, 0xa9c8141eU,
501 0x198557f1U, 0x074caf75U, 0xddbbee99U, 0x60fda37fU,
502 0x269ff701U, 0xf5bc5c72U, 0x3bc54466U, 0x7e345bfbU,
503 0x29768b43U, 0xc6dccb23U, 0xfc68b6edU, 0xf163b8e4U,
504 0xdccad731U, 0x85104263U, 0x22401397U, 0x112084c6U,
505 0x247d854aU, 0x3df8d2bbU, 0x3211aef9U, 0xa16dc729U,
506 0x2f4b1d9eU, 0x30f3dcb2U, 0x52ec0d86U, 0xe3d077c1U,
507 0x166c2bb3U, 0xb999a970U, 0x48fa1194U, 0x642247e9U,
508 0x8cc4a8fcU, 0x3f1aa0f0U, 0x2cd8567dU, 0x90ef2233U,
509 0x4ec78749U, 0xd1c1d938U, 0xa2fe8ccaU, 0x0b3698d4U,
510 0x81cfa6f5U, 0xde28a57aU, 0x8e26dab7U, 0xbfa43fadU,
511 0x9de42c3aU, 0x920d5078U, 0xcc9b6a5fU, 0x4662547eU,
512 0x13c2f68dU, 0xb8e890d8U, 0xf75e2e39U, 0xaff582c3U,
513 0x80be9f5dU, 0x937c69d0U, 0x2da96fd5U, 0x12b3cf25U,
514 0x993bc8acU, 0x7da71018U, 0x636ee89cU, 0xbb7bdb3bU,
515 0x7809cd26U, 0x18f46e59U, 0xb701ec9aU, 0x9aa8834fU,
516 0x6e65e695U, 0xe67eaaffU, 0xcf0821bcU, 0xe8e6ef15U,
517 0x9bd9bae7U, 0x36ce4a6fU, 0x09d4ea9fU, 0x7cd629b0U,
518 0xb2af31a4U, 0x23312a3fU, 0x9430c6a5U, 0x66c035a2U,
519 0xbc37744eU, 0xcaa6fc82U, 0xd0b0e090U, 0xd81533a7U,
520 0x984af104U, 0xdaf741ecU, 0x500e7fcdU, 0xf62f1791U,
521 0xd68d764dU, 0xb04d43efU, 0x4d54ccaaU, 0x04dfe496U,
522 0xb5e39ed1U, 0x881b4c6aU, 0x1fb8c12cU, 0x517f4665U,
523 0xea049d5eU, 0x355d018cU, 0x7473fa87U, 0x412efb0bU,
524 0x1d5ab367U, 0xd25292dbU, 0x5633e910U, 0x47136dd6U,
525 0x618c9ad7U, 0x0c7a37a1U, 0x148e59f8U, 0x3c89eb13U,
526 0x27eecea9U, 0xc935b761U, 0xe5ede11cU, 0xb13c7a47U,
527 0xdf599cd2U, 0x733f55f2U, 0xce791814U, 0x37bf73c7U,
528 0xcdea53f7U, 0xaa5b5ffdU, 0x6f14df3dU, 0xdb867844U,
529 0xf381caafU, 0xc43eb968U, 0x342c3824U, 0x405fc2a3U,
530 0xc372161dU, 0x250cbce2U, 0x498b283cU, 0x9541ff0dU,
531 0x017139a8U, 0xb3de080cU, 0xe49cd8b4U, 0xc1906456U,
532 0x84617bcbU, 0xb670d532U, 0x5c74486cU, 0x5742d0b8U,
533 };
534 static const uint32_t TD3[256] = {
535 0xf4a75051U, 0x4165537eU, 0x17a4c31aU, 0x275e963aU,
536 0xab6bcb3bU, 0x9d45f11fU, 0xfa58abacU, 0xe303934bU,
537 0x30fa5520U, 0x766df6adU, 0xcc769188U, 0x024c25f5U,
538 0xe5d7fc4fU, 0x2acbd7c5U, 0x35448026U, 0x62a38fb5U,
539 0xb15a49deU, 0xba1b6725U, 0xea0e9845U, 0xfec0e15dU,
540 0x2f7502c3U, 0x4cf01281U, 0x4697a38dU, 0xd3f9c66bU,
541 0x8f5fe703U, 0x929c9515U, 0x6d7aebbfU, 0x5259da95U,
542 0xbe832dd4U, 0x7421d358U, 0xe0692949U, 0xc9c8448eU,
543 0xc2896a75U, 0x8e7978f4U, 0x583e6b99U, 0xb971dd27U,
544 0xe14fb6beU, 0x88ad17f0U, 0x20ac66c9U, 0xce3ab47dU,
545 0xdf4a1863U, 0x1a3182e5U, 0x51336097U, 0x537f4562U,
546 0x6477e0b1U, 0x6bae84bbU, 0x81a01cfeU, 0x082b94f9U,
547 0x48685870U, 0x45fd198fU, 0xde6c8794U, 0x7bf8b752U,
548 0x73d323abU, 0x4b02e272U, 0x1f8f57e3U, 0x55ab2a66U,
549 0xeb2807b2U, 0xb5c2032fU, 0xc57b9a86U, 0x3708a5d3U,
550 0x2887f230U, 0xbfa5b223U, 0x036aba02U, 0x16825cedU,
551 0xcf1c2b8aU, 0x79b492a7U, 0x07f2f0f3U, 0x69e2a14eU,
552 0xdaf4cd65U, 0x05bed506U, 0x34621fd1U, 0xa6fe8ac4U,
553 0x2e539d34U, 0xf355a0a2U, 0x8ae13205U, 0xf6eb75a4U,
554 0x83ec390bU, 0x60efaa40U, 0x719f065eU, 0x6e1051bdU,
555 0x218af93eU, 0xdd063d96U, 0x3e05aeddU, 0xe6bd464dU,
556 0x548db591U, 0xc45d0571U, 0x06d46f04U, 0x5015ff60U,
557 0x98fb2419U, 0xbde997d6U, 0x4043cc89U, 0xd99e7767U,
558 0xe842bdb0U, 0x898b8807U, 0x195b38e7U, 0xc8eedb79U,
559 0x7c0a47a1U, 0x420fe97cU, 0x841ec9f8U, 0x00000000U,
560 0x80868309U, 0x2bed4832U, 0x1170ac1eU, 0x5a724e6cU,
561 0x0efffbfdU, 0x8538560fU, 0xaed51e3dU, 0x2d392736U,
562 0x0fd9640aU, 0x5ca62168U, 0x5b54d19bU, 0x362e3a24U,
563 0x0a67b10cU, 0x57e70f93U, 0xee96d2b4U, 0x9b919e1bU,
564 0xc0c54f80U, 0xdc20a261U, 0x774b695aU, 0x121a161cU,
565 0x93ba0ae2U, 0xa02ae5c0U, 0x22e0433cU, 0x1b171d12U,
566 0x090d0b0eU, 0x8bc7adf2U, 0xb6a8b92dU, 0x1ea9c814U,
567 0xf1198557U, 0x75074cafU, 0x99ddbbeeU, 0x7f60fda3U,
568 0x01269ff7U, 0x72f5bc5cU, 0x663bc544U, 0xfb7e345bU,
569 0x4329768bU, 0x23c6dccbU, 0xedfc68b6U, 0xe4f163b8U,
570 0x31dccad7U, 0x63851042U, 0x97224013U, 0xc6112084U,
571 0x4a247d85U, 0xbb3df8d2U, 0xf93211aeU, 0x29a16dc7U,
572 0x9e2f4b1dU, 0xb230f3dcU, 0x8652ec0dU, 0xc1e3d077U,
573 0xb3166c2bU, 0x70b999a9U, 0x9448fa11U, 0xe9642247U,
574 0xfc8cc4a8U, 0xf03f1aa0U, 0x7d2cd856U, 0x3390ef22U,
575 0x494ec787U, 0x38d1c1d9U, 0xcaa2fe8cU, 0xd40b3698U,
576 0xf581cfa6U, 0x7ade28a5U, 0xb78e26daU, 0xadbfa43fU,
577 0x3a9de42cU, 0x78920d50U, 0x5fcc9b6aU, 0x7e466254U,
578 0x8d13c2f6U, 0xd8b8e890U, 0x39f75e2eU, 0xc3aff582U,
579 0x5d80be9fU, 0xd0937c69U, 0xd52da96fU, 0x2512b3cfU,
580 0xac993bc8U, 0x187da710U, 0x9c636ee8U, 0x3bbb7bdbU,
581 0x267809cdU, 0x5918f46eU, 0x9ab701ecU, 0x4f9aa883U,
582 0x956e65e6U, 0xffe67eaaU, 0xbccf0821U, 0x15e8e6efU,
583 0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U,
584 0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U,
585 0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U,
586 0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U,
587 0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U,
588 0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U,
589 0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU,
590 0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU,
591 0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU,
592 0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU,
593 0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U,
594 0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U,
595 0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U,
596 0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU,
597 0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U,
598 0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U,
599 };
600
SetDecryptKeyTbox(CRYPT_AES_Key * ctx)601 static void SetDecryptKeyTbox(CRYPT_AES_Key *ctx)
602 {
603 uint32_t i, j;
604 uint32_t *dkey = ctx->key;
605 for (i = 1; i < ctx->rounds; i++) {
606 dkey += 4; // 4: 16 bytes are calculated each time.
607 for (j = 0; j < 4; j++) { // for 0 to 4 , operation for 16 / sizeof(uint32_t) cycles
608 dkey[j] = TD0[TE1[(dkey[j] >> 24)] & 0xff] ^ // dkey j >> 24
609 TD1[TE1[(dkey[j] >> 16) & 0xff] & 0xff] ^ // dkey j >> 16
610 TD2[TE1[(dkey[j] >> 8) & 0xff] & 0xff] ^ // dkey j >> 8
611 TD3[TE1[(dkey[j] >> 0) & 0xff] & 0xff]; // dkey j >> 0
612 }
613 }
614 }
615
AES_G(uint32_t w,uint32_t rcon)616 static inline uint32_t AES_G(uint32_t w, uint32_t rcon)
617 {
618 uint32_t ret = 0;
619 /* Query the table and perform shift. */
620 ret ^= (uint32_t)TE2[(w >> 16) & 0xff] & 0xff000000; // 16, row/column conversion relationship in the T table
621 ret ^= (uint32_t)TE3[(w >> 8) & 0xff] & 0x00ff0000; // 8, row/column conversion relationship in the T table
622 ret ^= (uint32_t)TE0[(w) & 0xff] & 0x0000ff00; // 0, row/column conversion relationship in the T table
623 ret ^= (uint32_t)TE1[(w >> 24)] & 0x000000ff; // 24, row/column conversion relationship in the T table
624 ret ^= rcon;
625 return ret;
626 }
627
SetEncryptKey128Tbox(CRYPT_AES_Key * ctx,const uint8_t * key)628 void SetEncryptKey128Tbox(CRYPT_AES_Key *ctx, const uint8_t *key)
629 {
630 uint32_t *ekey = ctx->key;
631 ekey[0] = GET_UINT32_BE(key, 0); // ekey 0: Four bytes starting from index key 0
632 ekey[1] = GET_UINT32_BE(key, 4); // ekey 1: Four bytes starting from index key 4
633 ekey[2] = GET_UINT32_BE(key, 8); // ekey 2: Four bytes starting from index key 8
634 ekey[3] = GET_UINT32_BE(key, 12); // ekey 3: Four bytes starting from index key 12
635
636 // 128bit Key length required 11 * 4 = 44. Number of expansion rounds: 10 -> 10 * 4 + 4 = 44
637 uint32_t times;
638 for (times = 0; times < 9; times++) { // 9 times
639 ekey[4] = AES_G(ekey[3], RCON[times]) ^ ekey[0]; // ekey 4 = (ekey 3 xor rcon) ^ ekey 0
640 ekey[5] = ekey[4] ^ ekey[1]; // ekey 5 = ekey 4 ^ ekey 1
641 ekey[6] = ekey[5] ^ ekey[2]; // ekey 6 = ekey 5 ^ ekey 2
642 ekey[7] = ekey[6] ^ ekey[3]; // ekey 7 = ekey 6 ^ ekey 3
643 ekey += 4; // add 4
644 }
645 // the last times
646 ekey[4] = AES_G(ekey[3], RCON[times]) ^ ekey[0]; // ekey 4 = (ekey 3 xor rcon) ^ ekey 0
647 ekey[5] = ekey[4] ^ ekey[1]; // ekey 5 = ekey 4 ^ ekey 1
648 ekey[6] = ekey[5] ^ ekey[2]; // ekey 6 = ekey 5 ^ ekey 2
649 ekey[7] = ekey[6] ^ ekey[3]; // ekey 7 = ekey 6 ^ ekey 3
650 }
651
SetEncryptKey192Tbox(CRYPT_AES_Key * ctx,const uint8_t * key)652 void SetEncryptKey192Tbox(CRYPT_AES_Key *ctx, const uint8_t *key)
653 {
654 uint32_t *ekey = ctx->key;
655 ekey[0] = GET_UINT32_BE(key, 0); // ekey 0: Four bytes starting from index key 0
656 ekey[1] = GET_UINT32_BE(key, 4); // ekey 1: Four bytes starting from index key 4
657 ekey[2] = GET_UINT32_BE(key, 8); // ekey 2: Four bytes starting from index key 8
658 ekey[3] = GET_UINT32_BE(key, 12); // ekey 3: Four bytes starting from index key 12
659 ekey[4] = GET_UINT32_BE(key, 16); // ekey 4: Four bytes starting from index key 16
660 ekey[5] = GET_UINT32_BE(key, 20); // ekey 5: Four bytes starting from index key 20
661
662 uint32_t times;
663
664 for (times = 0; times < 7; times++) { // 7 times
665 ekey[6] = AES_G(ekey[5], RCON[times]) ^ ekey[0]; // ekey 6 = AES_G(ekey 5 xor rcon) ^ ekey 0
666 ekey[7] = ekey[6] ^ ekey[1]; // ekey 7 = ekey 6 ^ ekey 1
667 ekey[8] = ekey[7] ^ ekey[2]; // ekey 8 = ekey 7 ^ ekey 2
668 ekey[9] = ekey[8] ^ ekey[3]; // ekey 9 = ekey 8 ^ ekey 3
669 ekey[10] = ekey[9] ^ ekey[4]; // ekey 10 = ekey 9 ^ ekey 4
670 ekey[11] = ekey[10] ^ ekey[5]; // ekey 11 = ekey 10 ^ ekey 5
671 ekey += 6; // add 6
672 }
673 // the last times
674 ekey[6] = AES_G(ekey[5], RCON[times]) ^ ekey[0]; // ekey 6 = AES_G(ekey 5 xor rcon) ^ ekey 0
675 ekey[7] = ekey[6] ^ ekey[1]; // ekey 7 = ekey 6 ^ ekey 1
676 ekey[8] = ekey[7] ^ ekey[2]; // ekey 8 = ekey 7 ^ ekey 2
677 ekey[9] = ekey[8] ^ ekey[3]; // ekey 9 = ekey 8 ^ ekey 3
678 }
679
SetEncryptKey256Tbox(CRYPT_AES_Key * ctx,const uint8_t * key)680 void SetEncryptKey256Tbox(CRYPT_AES_Key *ctx, const uint8_t *key)
681 {
682 uint32_t *ekey = ctx->key;
683 ekey[0] = GET_UINT32_BE(key, 0); // ekey 0: Four bytes starting from index key 0
684 ekey[1] = GET_UINT32_BE(key, 4); // ekey 1: Four bytes starting from index key 4
685 ekey[2] = GET_UINT32_BE(key, 8); // ekey 2: Four bytes starting from index key 8
686 ekey[3] = GET_UINT32_BE(key, 12); // ekey 3: Four bytes starting from index key 12
687 ekey[4] = GET_UINT32_BE(key, 16); // ekey 4: Four bytes starting from index key 16
688 ekey[5] = GET_UINT32_BE(key, 20); // ekey 5: Four bytes starting from index key 20
689 ekey[6] = GET_UINT32_BE(key, 24); // ekey 6: Four bytes starting from index key 24
690 ekey[7] = GET_UINT32_BE(key, 28); // ekey 7: Four bytes starting from index key 28
691
692 /* The key length must be 15 * 4 = 60. The number of extension rounds is 7 -> 7 * 8 + 8 - 4 = 60 */
693 uint32_t times;
694 uint32_t tmp;
695 for (times = 0; times < 6; times++) { // 6 times
696 ekey[8] = AES_G(ekey[7], RCON[times]) ^ ekey[0]; // ekey 8 = AES_G(ekey 7 xor rcon) ^ ekey 0
697 ekey[9] = ekey[8] ^ ekey[1]; // ekey 9 = ekey 8 ^ ekey 1
698 ekey[10] = ekey[9] ^ ekey[2]; // ekey 10 = ekey 9 ^ ekey 2
699 ekey[11] = ekey[10] ^ ekey[3]; // ekey 11 = ekey 10 ^ ekey 3
700 /* Shift operation to compensate for G operation */
701 tmp = (ekey[11] >> 8) | (ekey[11] << 24); // tmp is ekey 11 >> 8 | ekey 11 << 24
702 ekey[12] = AES_G(tmp, 0) ^ ekey[4]; // ekey 12 = AES_G(tme, 0) ^ ekey 4
703 ekey[13] = ekey[12] ^ ekey[5]; // ekey 13 = ekey 12 ^ ekey 5
704 ekey[14] = ekey[13] ^ ekey[6]; // ekey 14 = ekey 13 ^ ekey 6
705 ekey[15] = ekey[14] ^ ekey[7]; // ekey 15 = ekey 14 ^ ekey 7
706 ekey += 8; // add 8
707 }
708 // the last times
709 ekey[8] = AES_G(ekey[7], RCON[times]) ^ ekey[0]; // ekey 8 = AES_G(ekey 7 xor rcon) ^ ekey 0
710 ekey[9] = ekey[8] ^ ekey[1]; // ekey 9 = ekey 8 ^ ekey 1
711 ekey[10] = ekey[9] ^ ekey[2]; // ekey 10 = ekey 9 ^ ekey 2
712 ekey[11] = ekey[10] ^ ekey[3]; // ekey 11 = ekey 10 ^ ekey 3
713 }
714
SetAesKeyExpansionTbox(CRYPT_AES_Key * ctx,uint32_t keyLenBits,const uint8_t * key,bool isEncrypt)715 void SetAesKeyExpansionTbox(CRYPT_AES_Key *ctx, uint32_t keyLenBits, const uint8_t *key, bool isEncrypt)
716 {
717 switch (keyLenBits) {
718 case CRYPT_AES_128:
719 SetEncryptKey128Tbox(ctx, key);
720 break;
721 case CRYPT_AES_192:
722 SetEncryptKey192Tbox(ctx, key);
723 break;
724 case CRYPT_AES_256:
725 SetEncryptKey256Tbox(ctx, key);
726 break;
727 default:
728 return;
729 }
730
731 if (!isEncrypt) {
732 SetDecryptKeyTbox(ctx);
733 }
734 }
735
736 #define AES_ROUND_INIT(in, r, enc) \
737 do { \
738 r##0 = GET_UINT32_BE(in, 0) ^ enc##key[0]; \
739 r##1 = GET_UINT32_BE(in, 4) ^ enc##key[1]; \
740 r##2 = GET_UINT32_BE(in, 8) ^ enc##key[2]; \
741 r##3 = GET_UINT32_BE(in, 12) ^ enc##key[3]; \
742 } while (0)
743
744 #define AES_ENC_ROUND(in, r, i, ekey) \
745 do { \
746 r##0 = TE0[(in##0 >> 24)] ^ TE1[(in##1 >> 16) & 0xff] ^ TE2[(in##2 >> 8) & 0xff] ^ TE3[(in##3) & 0xff] \
747 ^ (ekey)[((i) << 2) + 0]; \
748 r##1 = TE0[(in##1 >> 24)] ^ TE1[(in##2 >> 16) & 0xff] ^ TE2[(in##3 >> 8) & 0xff] ^ TE3[(in##0) & 0xff] \
749 ^ (ekey)[((i) << 2) + 1]; \
750 r##2 = TE0[(in##2 >> 24)] ^ TE1[(in##3 >> 16) & 0xff] ^ TE2[(in##0 >> 8) & 0xff] ^ TE3[(in##1) & 0xff] \
751 ^ (ekey)[((i) << 2) + 2]; \
752 r##3 = TE0[(in##3 >> 24)] ^ TE1[(in##0 >> 16) & 0xff] ^ TE2[(in##1 >> 8) & 0xff] ^ TE3[(in##2) & 0xff] \
753 ^ (ekey)[((i) << 2) + 3]; \
754 } while (0)
755
CRYPT_AES_EncryptTbox(const CRYPT_AES_Key * ctx,const uint8_t * in,uint8_t * out,uint32_t len)756 void CRYPT_AES_EncryptTbox(const CRYPT_AES_Key *ctx, const uint8_t *in, uint8_t *out, uint32_t len)
757 {
758 (void)len;
759 const uint32_t *ekey = ctx->key;
760 uint32_t c0, c1, c2, c3, t0, t1, t2, t3;
761
762 AES_ROUND_INIT(in, c, e);
763
764 AES_ENC_ROUND(c, t, 1, ekey);
765 AES_ENC_ROUND(t, c, 2, ekey);
766 AES_ENC_ROUND(c, t, 3, ekey);
767 AES_ENC_ROUND(t, c, 4, ekey);
768 AES_ENC_ROUND(c, t, 5, ekey);
769 AES_ENC_ROUND(t, c, 6, ekey);
770 AES_ENC_ROUND(c, t, 7, ekey);
771 AES_ENC_ROUND(t, c, 8, ekey);
772 AES_ENC_ROUND(c, t, 9, ekey);
773
774 if (ctx->rounds > 10) { // AES192/AES256 Performs 10th and 11th rounds of calculation.
775 AES_ENC_ROUND(t, c, 10, ekey);
776 AES_ENC_ROUND(c, t, 11, ekey);
777 }
778
779 if (ctx->rounds > 12) { // AES256 Performs 12th and 13th rounds of calculation.
780 AES_ENC_ROUND(t, c, 12, ekey);
781 AES_ENC_ROUND(c, t, 13, ekey);
782 }
783
784 /* In the last round, the column confusion is not performed.
785 Instead, the shift is performed and the s-box is searched. */
786 // Do the position of the last ekey calculation, which is the ekey that has been used 4*rounds.
787 ekey += ctx->rounds * 4;
788
789 c0 = TESEARCH(t0, t1, t2, t3) ^ ekey[0]; // operation ekey 0
790 c1 = TESEARCH(t1, t2, t3, t0) ^ ekey[1]; // operation ekey 1
791 c2 = TESEARCH(t2, t3, t0, t1) ^ ekey[2]; // operation ekey 2
792 c3 = TESEARCH(t3, t0, t1, t2) ^ ekey[3]; // operation ekey 3
793
794 PUT_UINT32_BE(c0, out, 0); // c0 is converted into four bytes which index is 0 in the out.
795 PUT_UINT32_BE(c1, out, 4); // c1 is converted into four bytes which index is 4 in the out.
796 PUT_UINT32_BE(c2, out, 8); // c2 is converted into four bytes which index is 8 in the out
797 PUT_UINT32_BE(c3, out, 12); // c3 is converted into four bytes which index is 12 in the out
798 }
799
800 #define AES_DEC_ROUND(in, r, i, dkey) \
801 do { \
802 r##0 = TD0[(in##0 >> 24)] ^ TD1[(in##3 >> 16) & 0xff] ^ TD2[(in##2 >> 8) & 0xff] ^ TD3[(in##1) & 0xff] \
803 ^ (dkey)[((i) << 2) + 0]; \
804 r##1 = TD0[(in##1 >> 24)] ^ TD1[(in##0 >> 16) & 0xff] ^ TD2[(in##3 >> 8) & 0xff] ^ TD3[(in##2) & 0xff] \
805 ^ (dkey)[((i) << 2) + 1]; \
806 r##2 = TD0[(in##2 >> 24)] ^ TD1[(in##1 >> 16) & 0xff] ^ TD2[(in##0 >> 8) & 0xff] ^ TD3[(in##3) & 0xff] \
807 ^ (dkey)[((i) << 2) + 2]; \
808 r##3 = TD0[(in##3 >> 24)] ^ TD1[(in##2 >> 16) & 0xff] ^ TD2[(in##1 >> 8) & 0xff] ^ TD3[(in##0) & 0xff] \
809 ^ (dkey)[((i) << 2) + 3]; \
810 } while (0)
811
CRYPT_AES_DecryptTbox(const CRYPT_AES_Key * ctx,const uint8_t * in,uint8_t * out,uint32_t len)812 void CRYPT_AES_DecryptTbox(const CRYPT_AES_Key *ctx, const uint8_t *in, uint8_t *out, uint32_t len)
813 {
814 (void)len;
815 const uint32_t *dkey = ctx->key + ctx->rounds * 4; // 4 bytes
816 uint32_t p0, p1, p2, p3, t0, t1, t2, t3;
817
818 // Initialize p0. The dkey starts from the end of the key.
819 AES_ROUND_INIT(in, p, d);
820
821 dkey = ctx->key;
822
823 if (ctx->rounds > 12) { // AES256 Performs 12th and 13th rounds of calculation.
824 AES_DEC_ROUND(p, t, 13, dkey);
825 AES_DEC_ROUND(t, p, 12, dkey);
826 }
827
828 if (ctx->rounds > 10) { // AES192 Performs 10th and 11th rounds of calculation.
829 AES_DEC_ROUND(p, t, 11, dkey);
830 AES_DEC_ROUND(t, p, 10, dkey);
831 }
832
833 AES_DEC_ROUND(p, t, 9, dkey);
834 AES_DEC_ROUND(t, p, 8, dkey);
835 AES_DEC_ROUND(p, t, 7, dkey);
836 AES_DEC_ROUND(t, p, 6, dkey);
837 AES_DEC_ROUND(p, t, 5, dkey);
838 AES_DEC_ROUND(t, p, 4, dkey);
839 AES_DEC_ROUND(p, t, 3, dkey);
840 AES_DEC_ROUND(t, p, 2, dkey);
841 AES_DEC_ROUND(p, t, 1, dkey);
842
843 /* In the last round, the column confusion is not performed.
844 Instead, the shift is directly performed and the inverse s-box is searched. */
845 p0 = INVSSEARCH(t0, t1, t2, t3) ^ dkey[0]; // dkey 0
846 p1 = INVSSEARCH(t1, t2, t3, t0) ^ dkey[1]; // dkey 1
847 p2 = INVSSEARCH(t2, t3, t0, t1) ^ dkey[2]; // dkey 2
848 p3 = INVSSEARCH(t3, t0, t1, t2) ^ dkey[3]; // dkey 3
849
850 PUT_UINT32_BE(p0, out, 0); // 4 bytes starting from the index 0 of the in
851 PUT_UINT32_BE(p1, out, 4); // 4 bytes starting from the index 4 of the in
852 PUT_UINT32_BE(p2, out, 8); // 4 bytes starting from the index 8 of the in
853 PUT_UINT32_BE(p3, out, 12); // 4 bytes starting from the index 12 of the in
854 BSL_SAL_CleanseData(&p0, sizeof(uint32_t));
855 BSL_SAL_CleanseData(&p1, sizeof(uint32_t));
856 BSL_SAL_CleanseData(&p2, sizeof(uint32_t));
857 BSL_SAL_CleanseData(&p3, sizeof(uint32_t));
858 }
859 #endif /* HITLS_CRYPTO_AES_PRECALC_TABLES */
860 #endif /* HITLS_CRYPTO_AES */
861