/src/botan/src/lib/block/camellia/camellia.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Camellia |
3 | | * (C) 2012,2020 Jack Lloyd |
4 | | * |
5 | | * Botan is released under the Simplified BSD License (see license.txt) |
6 | | */ |
7 | | |
8 | | #include <botan/internal/camellia.h> |
9 | | #include <botan/internal/loadstor.h> |
10 | | #include <botan/internal/rotate.h> |
11 | | |
12 | | namespace Botan { |
13 | | |
14 | | namespace { |
15 | | |
16 | | namespace Camellia_F { |
17 | | |
18 | | alignas(256) static const uint8_t SBOX1[256] = { |
19 | | 0x70, 0x82, 0x2C, 0xEC, 0xB3, 0x27, 0xC0, 0xE5, 0xE4, 0x85, 0x57, |
20 | | 0x35, 0xEA, 0x0C, 0xAE, 0x41, 0x23, 0xEF, 0x6B, 0x93, 0x45, 0x19, |
21 | | 0xA5, 0x21, 0xED, 0x0E, 0x4F, 0x4E, 0x1D, 0x65, 0x92, 0xBD, 0x86, |
22 | | 0xB8, 0xAF, 0x8F, 0x7C, 0xEB, 0x1F, 0xCE, 0x3E, 0x30, 0xDC, 0x5F, |
23 | | 0x5E, 0xC5, 0x0B, 0x1A, 0xA6, 0xE1, 0x39, 0xCA, 0xD5, 0x47, 0x5D, |
24 | | 0x3D, 0xD9, 0x01, 0x5A, 0xD6, 0x51, 0x56, 0x6C, 0x4D, 0x8B, 0x0D, |
25 | | 0x9A, 0x66, 0xFB, 0xCC, 0xB0, 0x2D, 0x74, 0x12, 0x2B, 0x20, 0xF0, |
26 | | 0xB1, 0x84, 0x99, 0xDF, 0x4C, 0xCB, 0xC2, 0x34, 0x7E, 0x76, 0x05, |
27 | | 0x6D, 0xB7, 0xA9, 0x31, 0xD1, 0x17, 0x04, 0xD7, 0x14, 0x58, 0x3A, |
28 | | 0x61, 0xDE, 0x1B, 0x11, 0x1C, 0x32, 0x0F, 0x9C, 0x16, 0x53, 0x18, |
29 | | 0xF2, 0x22, 0xFE, 0x44, 0xCF, 0xB2, 0xC3, 0xB5, 0x7A, 0x91, 0x24, |
30 | | 0x08, 0xE8, 0xA8, 0x60, 0xFC, 0x69, 0x50, 0xAA, 0xD0, 0xA0, 0x7D, |
31 | | 0xA1, 0x89, 0x62, 0x97, 0x54, 0x5B, 0x1E, 0x95, 0xE0, 0xFF, 0x64, |
32 | | 0xD2, 0x10, 0xC4, 0x00, 0x48, 0xA3, 0xF7, 0x75, 0xDB, 0x8A, 0x03, |
33 | | 0xE6, 0xDA, 0x09, 0x3F, 0xDD, 0x94, 0x87, 0x5C, 0x83, 0x02, 0xCD, |
34 | | 0x4A, 0x90, 0x33, 0x73, 0x67, 0xF6, 0xF3, 0x9D, 0x7F, 0xBF, 0xE2, |
35 | | 0x52, 0x9B, 0xD8, 0x26, 0xC8, 0x37, 0xC6, 0x3B, 0x81, 0x96, 0x6F, |
36 | | 0x4B, 0x13, 0xBE, 0x63, 0x2E, 0xE9, 0x79, 0xA7, 0x8C, 0x9F, 0x6E, |
37 | | 0xBC, 0x8E, 0x29, 0xF5, 0xF9, 0xB6, 0x2F, 0xFD, 0xB4, 0x59, 0x78, |
38 | | 0x98, 0x06, 0x6A, 0xE7, 0x46, 0x71, 0xBA, 0xD4, 0x25, 0xAB, 0x42, |
39 | | 0x88, 0xA2, 0x8D, 0xFA, 0x72, 0x07, 0xB9, 0x55, 0xF8, 0xEE, 0xAC, |
40 | | 0x0A, 0x36, 0x49, 0x2A, 0x68, 0x3C, 0x38, 0xF1, 0xA4, 0x40, 0x28, |
41 | | 0xD3, 0x7B, 0xBB, 0xC9, 0x43, 0xC1, 0x15, 0xE3, 0xAD, 0xF4, 0x77, |
42 | | 0xC7, 0x80, 0x9E }; |
43 | | |
44 | | // SBOX2[x] = rotl<1>(SBOX1[x]) |
45 | | alignas(256) static const uint8_t SBOX2[256] = { |
46 | | 0xE0, 0x05, 0x58, 0xD9, 0x67, 0x4E, 0x81, 0xCB, 0xC9, 0x0B, 0xAE, |
47 | | 0x6A, 0xD5, 0x18, 0x5D, 0x82, 0x46, 0xDF, 0xD6, 0x27, 0x8A, 0x32, |
48 | | 0x4B, 0x42, 0xDB, 0x1C, 0x9E, 0x9C, 0x3A, 0xCA, 0x25, 0x7B, 0x0D, |
49 | | 0x71, 0x5F, 0x1F, 0xF8, 0xD7, 0x3E, 0x9D, 0x7C, 0x60, 0xB9, 0xBE, |
50 | | 0xBC, 0x8B, 0x16, 0x34, 0x4D, 0xC3, 0x72, 0x95, 0xAB, 0x8E, 0xBA, |
51 | | 0x7A, 0xB3, 0x02, 0xB4, 0xAD, 0xA2, 0xAC, 0xD8, 0x9A, 0x17, 0x1A, |
52 | | 0x35, 0xCC, 0xF7, 0x99, 0x61, 0x5A, 0xE8, 0x24, 0x56, 0x40, 0xE1, |
53 | | 0x63, 0x09, 0x33, 0xBF, 0x98, 0x97, 0x85, 0x68, 0xFC, 0xEC, 0x0A, |
54 | | 0xDA, 0x6F, 0x53, 0x62, 0xA3, 0x2E, 0x08, 0xAF, 0x28, 0xB0, 0x74, |
55 | | 0xC2, 0xBD, 0x36, 0x22, 0x38, 0x64, 0x1E, 0x39, 0x2C, 0xA6, 0x30, |
56 | | 0xE5, 0x44, 0xFD, 0x88, 0x9F, 0x65, 0x87, 0x6B, 0xF4, 0x23, 0x48, |
57 | | 0x10, 0xD1, 0x51, 0xC0, 0xF9, 0xD2, 0xA0, 0x55, 0xA1, 0x41, 0xFA, |
58 | | 0x43, 0x13, 0xC4, 0x2F, 0xA8, 0xB6, 0x3C, 0x2B, 0xC1, 0xFF, 0xC8, |
59 | | 0xA5, 0x20, 0x89, 0x00, 0x90, 0x47, 0xEF, 0xEA, 0xB7, 0x15, 0x06, |
60 | | 0xCD, 0xB5, 0x12, 0x7E, 0xBB, 0x29, 0x0F, 0xB8, 0x07, 0x04, 0x9B, |
61 | | 0x94, 0x21, 0x66, 0xE6, 0xCE, 0xED, 0xE7, 0x3B, 0xFE, 0x7F, 0xC5, |
62 | | 0xA4, 0x37, 0xB1, 0x4C, 0x91, 0x6E, 0x8D, 0x76, 0x03, 0x2D, 0xDE, |
63 | | 0x96, 0x26, 0x7D, 0xC6, 0x5C, 0xD3, 0xF2, 0x4F, 0x19, 0x3F, 0xDC, |
64 | | 0x79, 0x1D, 0x52, 0xEB, 0xF3, 0x6D, 0x5E, 0xFB, 0x69, 0xB2, 0xF0, |
65 | | 0x31, 0x0C, 0xD4, 0xCF, 0x8C, 0xE2, 0x75, 0xA9, 0x4A, 0x57, 0x84, |
66 | | 0x11, 0x45, 0x1B, 0xF5, 0xE4, 0x0E, 0x73, 0xAA, 0xF1, 0xDD, 0x59, |
67 | | 0x14, 0x6C, 0x92, 0x54, 0xD0, 0x78, 0x70, 0xE3, 0x49, 0x80, 0x50, |
68 | | 0xA7, 0xF6, 0x77, 0x93, 0x86, 0x83, 0x2A, 0xC7, 0x5B, 0xE9, 0xEE, |
69 | | 0x8F, 0x01, 0x3D }; |
70 | | |
71 | | // SBOX3[x] = rotl<7>(SBOX1[x]) |
72 | | alignas(256) static const uint8_t SBOX3[256] = { |
73 | | 0x38, 0x41, 0x16, 0x76, 0xD9, 0x93, 0x60, 0xF2, 0x72, 0xC2, 0xAB, |
74 | | 0x9A, 0x75, 0x06, 0x57, 0xA0, 0x91, 0xF7, 0xB5, 0xC9, 0xA2, 0x8C, |
75 | | 0xD2, 0x90, 0xF6, 0x07, 0xA7, 0x27, 0x8E, 0xB2, 0x49, 0xDE, 0x43, |
76 | | 0x5C, 0xD7, 0xC7, 0x3E, 0xF5, 0x8F, 0x67, 0x1F, 0x18, 0x6E, 0xAF, |
77 | | 0x2F, 0xE2, 0x85, 0x0D, 0x53, 0xF0, 0x9C, 0x65, 0xEA, 0xA3, 0xAE, |
78 | | 0x9E, 0xEC, 0x80, 0x2D, 0x6B, 0xA8, 0x2B, 0x36, 0xA6, 0xC5, 0x86, |
79 | | 0x4D, 0x33, 0xFD, 0x66, 0x58, 0x96, 0x3A, 0x09, 0x95, 0x10, 0x78, |
80 | | 0xD8, 0x42, 0xCC, 0xEF, 0x26, 0xE5, 0x61, 0x1A, 0x3F, 0x3B, 0x82, |
81 | | 0xB6, 0xDB, 0xD4, 0x98, 0xE8, 0x8B, 0x02, 0xEB, 0x0A, 0x2C, 0x1D, |
82 | | 0xB0, 0x6F, 0x8D, 0x88, 0x0E, 0x19, 0x87, 0x4E, 0x0B, 0xA9, 0x0C, |
83 | | 0x79, 0x11, 0x7F, 0x22, 0xE7, 0x59, 0xE1, 0xDA, 0x3D, 0xC8, 0x12, |
84 | | 0x04, 0x74, 0x54, 0x30, 0x7E, 0xB4, 0x28, 0x55, 0x68, 0x50, 0xBE, |
85 | | 0xD0, 0xC4, 0x31, 0xCB, 0x2A, 0xAD, 0x0F, 0xCA, 0x70, 0xFF, 0x32, |
86 | | 0x69, 0x08, 0x62, 0x00, 0x24, 0xD1, 0xFB, 0xBA, 0xED, 0x45, 0x81, |
87 | | 0x73, 0x6D, 0x84, 0x9F, 0xEE, 0x4A, 0xC3, 0x2E, 0xC1, 0x01, 0xE6, |
88 | | 0x25, 0x48, 0x99, 0xB9, 0xB3, 0x7B, 0xF9, 0xCE, 0xBF, 0xDF, 0x71, |
89 | | 0x29, 0xCD, 0x6C, 0x13, 0x64, 0x9B, 0x63, 0x9D, 0xC0, 0x4B, 0xB7, |
90 | | 0xA5, 0x89, 0x5F, 0xB1, 0x17, 0xF4, 0xBC, 0xD3, 0x46, 0xCF, 0x37, |
91 | | 0x5E, 0x47, 0x94, 0xFA, 0xFC, 0x5B, 0x97, 0xFE, 0x5A, 0xAC, 0x3C, |
92 | | 0x4C, 0x03, 0x35, 0xF3, 0x23, 0xB8, 0x5D, 0x6A, 0x92, 0xD5, 0x21, |
93 | | 0x44, 0x51, 0xC6, 0x7D, 0x39, 0x83, 0xDC, 0xAA, 0x7C, 0x77, 0x56, |
94 | | 0x05, 0x1B, 0xA4, 0x15, 0x34, 0x1E, 0x1C, 0xF8, 0x52, 0x20, 0x14, |
95 | | 0xE9, 0xBD, 0xDD, 0xE4, 0xA1, 0xE0, 0x8A, 0xF1, 0xD6, 0x7A, 0xBB, |
96 | | 0xE3, 0x40, 0x4F }; |
97 | | |
98 | | // SBOX4[x] = SBOX1[rotl<1>(x)] |
99 | | alignas(256) static const uint8_t SBOX4[256] = { |
100 | | 0x70, 0x2C, 0xB3, 0xC0, 0xE4, 0x57, 0xEA, 0xAE, 0x23, 0x6B, 0x45, |
101 | | 0xA5, 0xED, 0x4F, 0x1D, 0x92, 0x86, 0xAF, 0x7C, 0x1F, 0x3E, 0xDC, |
102 | | 0x5E, 0x0B, 0xA6, 0x39, 0xD5, 0x5D, 0xD9, 0x5A, 0x51, 0x6C, 0x8B, |
103 | | 0x9A, 0xFB, 0xB0, 0x74, 0x2B, 0xF0, 0x84, 0xDF, 0xCB, 0x34, 0x76, |
104 | | 0x6D, 0xA9, 0xD1, 0x04, 0x14, 0x3A, 0xDE, 0x11, 0x32, 0x9C, 0x53, |
105 | | 0xF2, 0xFE, 0xCF, 0xC3, 0x7A, 0x24, 0xE8, 0x60, 0x69, 0xAA, 0xA0, |
106 | | 0xA1, 0x62, 0x54, 0x1E, 0xE0, 0x64, 0x10, 0x00, 0xA3, 0x75, 0x8A, |
107 | | 0xE6, 0x09, 0xDD, 0x87, 0x83, 0xCD, 0x90, 0x73, 0xF6, 0x9D, 0xBF, |
108 | | 0x52, 0xD8, 0xC8, 0xC6, 0x81, 0x6F, 0x13, 0x63, 0xE9, 0xA7, 0x9F, |
109 | | 0xBC, 0x29, 0xF9, 0x2F, 0xB4, 0x78, 0x06, 0xE7, 0x71, 0xD4, 0xAB, |
110 | | 0x88, 0x8D, 0x72, 0xB9, 0xF8, 0xAC, 0x36, 0x2A, 0x3C, 0xF1, 0x40, |
111 | | 0xD3, 0xBB, 0x43, 0x15, 0xAD, 0x77, 0x80, 0x82, 0xEC, 0x27, 0xE5, |
112 | | 0x85, 0x35, 0x0C, 0x41, 0xEF, 0x93, 0x19, 0x21, 0x0E, 0x4E, 0x65, |
113 | | 0xBD, 0xB8, 0x8F, 0xEB, 0xCE, 0x30, 0x5F, 0xC5, 0x1A, 0xE1, 0xCA, |
114 | | 0x47, 0x3D, 0x01, 0xD6, 0x56, 0x4D, 0x0D, 0x66, 0xCC, 0x2D, 0x12, |
115 | | 0x20, 0xB1, 0x99, 0x4C, 0xC2, 0x7E, 0x05, 0xB7, 0x31, 0x17, 0xD7, |
116 | | 0x58, 0x61, 0x1B, 0x1C, 0x0F, 0x16, 0x18, 0x22, 0x44, 0xB2, 0xB5, |
117 | | 0x91, 0x08, 0xA8, 0xFC, 0x50, 0xD0, 0x7D, 0x89, 0x97, 0x5B, 0x95, |
118 | | 0xFF, 0xD2, 0xC4, 0x48, 0xF7, 0xDB, 0x03, 0xDA, 0x3F, 0x94, 0x5C, |
119 | | 0x02, 0x4A, 0x33, 0x67, 0xF3, 0x7F, 0xE2, 0x9B, 0x26, 0x37, 0x3B, |
120 | | 0x96, 0x4B, 0xBE, 0x2E, 0x79, 0x8C, 0x6E, 0x8E, 0xF5, 0xB6, 0xFD, |
121 | | 0x59, 0x98, 0x6A, 0x46, 0xBA, 0x25, 0x42, 0xA2, 0xFA, 0x07, 0x55, |
122 | | 0xEE, 0x0A, 0x49, 0x68, 0x38, 0xA4, 0x28, 0x7B, 0xC9, 0xC1, 0xE3, |
123 | | 0xF4, 0xC7, 0x9E }; |
124 | | |
125 | | uint64_t F(uint64_t v, uint64_t K) |
126 | 40.9k | { |
127 | 40.9k | const uint64_t M1 = 0x0101010001000001; |
128 | 40.9k | const uint64_t M2 = 0x0001010101010000; |
129 | 40.9k | const uint64_t M3 = 0x0100010100010100; |
130 | 40.9k | const uint64_t M4 = 0x0101000100000101; |
131 | 40.9k | const uint64_t M5 = 0x0001010100010101; |
132 | 40.9k | const uint64_t M6 = 0x0100010101000101; |
133 | 40.9k | const uint64_t M7 = 0x0101000101010001; |
134 | 40.9k | const uint64_t M8 = 0x0101010001010100; |
135 | | |
136 | 40.9k | const uint64_t x = v ^ K; |
137 | | |
138 | 40.9k | const uint64_t Z1 = M1 * SBOX1[get_byte<0>(x)]; |
139 | 40.9k | const uint64_t Z2 = M2 * SBOX2[get_byte<1>(x)]; |
140 | 40.9k | const uint64_t Z3 = M3 * SBOX3[get_byte<2>(x)]; |
141 | 40.9k | const uint64_t Z4 = M4 * SBOX4[get_byte<3>(x)]; |
142 | 40.9k | const uint64_t Z5 = M5 * SBOX2[get_byte<4>(x)]; |
143 | 40.9k | const uint64_t Z6 = M6 * SBOX3[get_byte<5>(x)]; |
144 | 40.9k | const uint64_t Z7 = M7 * SBOX4[get_byte<6>(x)]; |
145 | 40.9k | const uint64_t Z8 = M8 * SBOX1[get_byte<7>(x)]; |
146 | | |
147 | 40.9k | return Z1 ^ Z2 ^ Z3 ^ Z4 ^ Z5 ^ Z6 ^ Z7 ^ Z8; |
148 | 40.9k | } |
149 | | |
150 | | inline uint64_t FL(uint64_t v, uint64_t K) |
151 | 4.86k | { |
152 | 4.86k | uint32_t x1 = static_cast<uint32_t>(v >> 32); |
153 | 4.86k | uint32_t x2 = static_cast<uint32_t>(v & 0xFFFFFFFF); |
154 | | |
155 | 4.86k | const uint32_t k1 = static_cast<uint32_t>(K >> 32); |
156 | 4.86k | const uint32_t k2 = static_cast<uint32_t>(K & 0xFFFFFFFF); |
157 | | |
158 | 4.86k | x2 ^= rotl<1>(x1 & k1); |
159 | 4.86k | x1 ^= (x2 | k2); |
160 | | |
161 | 4.86k | return ((static_cast<uint64_t>(x1) << 32) | x2); |
162 | 4.86k | } |
163 | | |
164 | | inline uint64_t FLINV(uint64_t v, uint64_t K) |
165 | 4.86k | { |
166 | 4.86k | uint32_t x1 = static_cast<uint32_t>(v >> 32); |
167 | 4.86k | uint32_t x2 = static_cast<uint32_t>(v & 0xFFFFFFFF); |
168 | | |
169 | 4.86k | const uint32_t k1 = static_cast<uint32_t>(K >> 32); |
170 | 4.86k | const uint32_t k2 = static_cast<uint32_t>(K & 0xFFFFFFFF); |
171 | | |
172 | 4.86k | x1 ^= (x2 | k2); |
173 | 4.86k | x2 ^= rotl<1>(x1 & k1); |
174 | | |
175 | 4.86k | return ((static_cast<uint64_t>(x1) << 32) | x2); |
176 | 4.86k | } |
177 | | |
178 | | /* |
179 | | * Camellia Encryption |
180 | | */ |
181 | | void encrypt(const uint8_t in[], uint8_t out[], size_t blocks, |
182 | | const secure_vector<uint64_t>& SK, const size_t rounds) |
183 | 482 | { |
184 | 2.41k | for(size_t i = 0; i < blocks; ++i) |
185 | 1.92k | { |
186 | 1.92k | uint64_t D1, D2; |
187 | 1.92k | load_be(in + 16*i, D1, D2); |
188 | | |
189 | 1.92k | const uint64_t* K = SK.data(); |
190 | | |
191 | 1.92k | D1 ^= *K++; |
192 | 1.92k | D2 ^= *K++; |
193 | | |
194 | 1.92k | D2 ^= F(D1, *K++); |
195 | 1.92k | D1 ^= F(D2, *K++); |
196 | | |
197 | 18.4k | for(size_t r = 1; r != rounds - 1; ++r) |
198 | 16.5k | { |
199 | 16.5k | if(r % 3 == 0) |
200 | 4.86k | { |
201 | 4.86k | D1 = FL (D1, *K++); |
202 | 4.86k | D2 = FLINV(D2, *K++); |
203 | 4.86k | } |
204 | | |
205 | 16.5k | D2 ^= F(D1, *K++); |
206 | 16.5k | D1 ^= F(D2, *K++); |
207 | 16.5k | } |
208 | | |
209 | 1.92k | D2 ^= F(D1, *K++); |
210 | 1.92k | D1 ^= F(D2, *K++); |
211 | | |
212 | 1.92k | D2 ^= *K++; |
213 | 1.92k | D1 ^= *K++; |
214 | | |
215 | 1.92k | store_be(out + 16*i, D2, D1); |
216 | 1.92k | } |
217 | 482 | } |
218 | | |
219 | | /* |
220 | | * Camellia Decryption |
221 | | */ |
222 | | void decrypt(const uint8_t in[], uint8_t out[], size_t blocks, |
223 | | const secure_vector<uint64_t>& SK, const size_t rounds) |
224 | 0 | { |
225 | 0 | for(size_t i = 0; i < blocks; ++i) |
226 | 0 | { |
227 | 0 | uint64_t D1, D2; |
228 | 0 | load_be(in + 16*i, D1, D2); |
229 | |
|
230 | 0 | const uint64_t* K = &SK[SK.size()-1]; |
231 | |
|
232 | 0 | D2 ^= *K--; |
233 | 0 | D1 ^= *K--; |
234 | |
|
235 | 0 | D2 ^= F(D1, *K--); |
236 | 0 | D1 ^= F(D2, *K--); |
237 | |
|
238 | 0 | for(size_t r = 1; r != rounds - 1; ++r) |
239 | 0 | { |
240 | 0 | if(r % 3 == 0) |
241 | 0 | { |
242 | 0 | D1 = FL (D1, *K--); |
243 | 0 | D2 = FLINV(D2, *K--); |
244 | 0 | } |
245 | |
|
246 | 0 | D2 ^= F(D1, *K--); |
247 | 0 | D1 ^= F(D2, *K--); |
248 | 0 | } |
249 | |
|
250 | 0 | D2 ^= F(D1, *K--); |
251 | 0 | D1 ^= F(D2, *K--); |
252 | |
|
253 | 0 | D1 ^= *K--; |
254 | 0 | D2 ^= *K; |
255 | |
|
256 | 0 | store_be(out + 16*i, D2, D1); |
257 | 0 | } |
258 | 0 | } |
259 | | |
260 | | inline uint64_t left_rot_hi(uint64_t h, uint64_t l, size_t shift) |
261 | 527 | { |
262 | 527 | if(shift >= 64) |
263 | 224 | shift -= 64; |
264 | 527 | return (h << shift) | (l >> (64-shift)); |
265 | 527 | } |
266 | | |
267 | | inline uint64_t left_rot_lo(uint64_t h, uint64_t l, size_t shift) |
268 | 527 | { |
269 | 527 | if(shift >= 64) |
270 | 224 | shift -= 64; |
271 | 527 | return (h >> (64-shift)) | (l << shift); |
272 | 527 | } |
273 | | |
274 | | /* |
275 | | * Camellia Key Schedule |
276 | | */ |
277 | | void key_schedule(secure_vector<uint64_t>& SK, const uint8_t key[], size_t length) |
278 | 41 | { |
279 | 41 | const uint64_t Sigma1 = 0xA09E667F3BCC908B; |
280 | 41 | const uint64_t Sigma2 = 0xB67AE8584CAA73B2; |
281 | 41 | const uint64_t Sigma3 = 0xC6EF372FE94F82BE; |
282 | 41 | const uint64_t Sigma4 = 0x54FF53A5F1D36F1C; |
283 | 41 | const uint64_t Sigma5 = 0x10E527FADE682D1D; |
284 | 41 | const uint64_t Sigma6 = 0xB05688C2B3E6C1FD; |
285 | | |
286 | 41 | const uint64_t KL_H = load_be<uint64_t>(key, 0); |
287 | 41 | const uint64_t KL_L = load_be<uint64_t>(key, 1); |
288 | | |
289 | 41 | const uint64_t KR_H = (length >= 24) ? load_be<uint64_t>(key, 2) : 0; |
290 | 41 | const uint64_t KR_L = |
291 | 41 | (length == 32) ? load_be<uint64_t>(key, 3) : ((length == 24) ? ~KR_H : 0); |
292 | | |
293 | 41 | uint64_t D1 = KL_H ^ KR_H; |
294 | 41 | uint64_t D2 = KL_L ^ KR_L; |
295 | 41 | D2 ^= F(D1, Sigma1); |
296 | 41 | D1 ^= F(D2, Sigma2); |
297 | 41 | D1 ^= KL_H; |
298 | 41 | D2 ^= KL_L; |
299 | 41 | D2 ^= F(D1, Sigma3); |
300 | 41 | D1 ^= F(D2, Sigma4); |
301 | | |
302 | 41 | const uint64_t KA_H = D1; |
303 | 41 | const uint64_t KA_L = D2; |
304 | | |
305 | 41 | D1 = KA_H ^ KR_H; |
306 | 41 | D2 = KA_L ^ KR_L; |
307 | 41 | D2 ^= F(D1, Sigma5); |
308 | 41 | D1 ^= F(D2, Sigma6); |
309 | | |
310 | 41 | const uint64_t KB_H = D1; |
311 | 41 | const uint64_t KB_L = D2; |
312 | | |
313 | 41 | if(length == 16) |
314 | 22 | { |
315 | 22 | SK.resize(26); |
316 | | |
317 | 22 | SK[ 0] = KL_H; |
318 | 22 | SK[ 1] = KL_L; |
319 | 22 | SK[ 2] = KA_H; |
320 | 22 | SK[ 3] = KA_L; |
321 | 22 | SK[ 4] = left_rot_hi(KL_H, KL_L, 15); |
322 | 22 | SK[ 5] = left_rot_lo(KL_H, KL_L, 15); |
323 | 22 | SK[ 6] = left_rot_hi(KA_H, KA_L, 15); |
324 | 22 | SK[ 7] = left_rot_lo(KA_H, KA_L, 15); |
325 | 22 | SK[ 8] = left_rot_hi(KA_H, KA_L, 30); |
326 | 22 | SK[ 9] = left_rot_lo(KA_H, KA_L, 30); |
327 | 22 | SK[10] = left_rot_hi(KL_H, KL_L, 45); |
328 | 22 | SK[11] = left_rot_lo(KL_H, KL_L, 45); |
329 | 22 | SK[12] = left_rot_hi(KA_H, KA_L, 45); |
330 | 22 | SK[13] = left_rot_lo(KL_H, KL_L, 60); |
331 | 22 | SK[14] = left_rot_hi(KA_H, KA_L, 60); |
332 | 22 | SK[15] = left_rot_lo(KA_H, KA_L, 60); |
333 | 22 | SK[16] = left_rot_lo(KL_H, KL_L, 77); |
334 | 22 | SK[17] = left_rot_hi(KL_H, KL_L, 77); |
335 | 22 | SK[18] = left_rot_lo(KL_H, KL_L, 94); |
336 | 22 | SK[19] = left_rot_hi(KL_H, KL_L, 94); |
337 | 22 | SK[20] = left_rot_lo(KA_H, KA_L, 94); |
338 | 22 | SK[21] = left_rot_hi(KA_H, KA_L, 94); |
339 | 22 | SK[22] = left_rot_lo(KL_H, KL_L, 111); |
340 | 22 | SK[23] = left_rot_hi(KL_H, KL_L, 111); |
341 | 22 | SK[24] = left_rot_lo(KA_H, KA_L, 111); |
342 | 22 | SK[25] = left_rot_hi(KA_H, KA_L, 111); |
343 | 22 | } |
344 | 19 | else |
345 | 19 | { |
346 | 19 | SK.resize(34); |
347 | | |
348 | 19 | SK[ 0] = KL_H; |
349 | 19 | SK[ 1] = KL_L; |
350 | 19 | SK[ 2] = KB_H; |
351 | 19 | SK[ 3] = KB_L; |
352 | | |
353 | 19 | SK[ 4] = left_rot_hi(KR_H, KR_L, 15); |
354 | 19 | SK[ 5] = left_rot_lo(KR_H, KR_L, 15); |
355 | 19 | SK[ 6] = left_rot_hi(KA_H, KA_L, 15); |
356 | 19 | SK[ 7] = left_rot_lo(KA_H, KA_L, 15); |
357 | | |
358 | 19 | SK[ 8] = left_rot_hi(KR_H, KR_L, 30); |
359 | 19 | SK[ 9] = left_rot_lo(KR_H, KR_L, 30); |
360 | 19 | SK[10] = left_rot_hi(KB_H, KB_L, 30); |
361 | 19 | SK[11] = left_rot_lo(KB_H, KB_L, 30); |
362 | | |
363 | 19 | SK[12] = left_rot_hi(KL_H, KL_L, 45); |
364 | 19 | SK[13] = left_rot_lo(KL_H, KL_L, 45); |
365 | 19 | SK[14] = left_rot_hi(KA_H, KA_L, 45); |
366 | 19 | SK[15] = left_rot_lo(KA_H, KA_L, 45); |
367 | | |
368 | 19 | SK[16] = left_rot_hi(KL_H, KL_L, 60); |
369 | 19 | SK[17] = left_rot_lo(KL_H, KL_L, 60); |
370 | 19 | SK[18] = left_rot_hi(KR_H, KR_L, 60); |
371 | 19 | SK[19] = left_rot_lo(KR_H, KR_L, 60); |
372 | 19 | SK[20] = left_rot_hi(KB_H, KB_L, 60); |
373 | 19 | SK[21] = left_rot_lo(KB_H, KB_L, 60); |
374 | | |
375 | 19 | SK[22] = left_rot_lo(KL_H, KL_L, 77); |
376 | 19 | SK[23] = left_rot_hi(KL_H, KL_L, 77); |
377 | 19 | SK[24] = left_rot_lo(KA_H, KA_L, 77); |
378 | 19 | SK[25] = left_rot_hi(KA_H, KA_L, 77); |
379 | | |
380 | 19 | SK[26] = left_rot_lo(KR_H, KR_L, 94); |
381 | 19 | SK[27] = left_rot_hi(KR_H, KR_L, 94); |
382 | 19 | SK[28] = left_rot_lo(KA_H, KA_L, 94); |
383 | 19 | SK[29] = left_rot_hi(KA_H, KA_L, 94); |
384 | 19 | SK[30] = left_rot_lo(KL_H, KL_L, 111); |
385 | 19 | SK[31] = left_rot_hi(KL_H, KL_L, 111); |
386 | 19 | SK[32] = left_rot_lo(KB_H, KB_L, 111); |
387 | 19 | SK[33] = left_rot_hi(KB_H, KB_L, 111); |
388 | 19 | } |
389 | 41 | } |
390 | | |
391 | | } |
392 | | |
393 | | } |
394 | | |
395 | | void Camellia_128::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const |
396 | 230 | { |
397 | 230 | verify_key_set(m_SK.empty() == false); |
398 | 230 | Camellia_F::encrypt(in, out, blocks, m_SK, 9); |
399 | 230 | } |
400 | | |
401 | | void Camellia_192::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const |
402 | 0 | { |
403 | 0 | verify_key_set(m_SK.empty() == false); |
404 | 0 | Camellia_F::encrypt(in, out, blocks, m_SK, 12); |
405 | 0 | } |
406 | | |
407 | | void Camellia_256::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const |
408 | 252 | { |
409 | 252 | verify_key_set(m_SK.empty() == false); |
410 | 252 | Camellia_F::encrypt(in, out, blocks, m_SK, 12); |
411 | 252 | } |
412 | | |
413 | | void Camellia_128::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const |
414 | 0 | { |
415 | 0 | verify_key_set(m_SK.empty() == false); |
416 | 0 | Camellia_F::decrypt(in, out, blocks, m_SK, 9); |
417 | 0 | } |
418 | | |
419 | | void Camellia_192::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const |
420 | 0 | { |
421 | 0 | verify_key_set(m_SK.empty() == false); |
422 | 0 | Camellia_F::decrypt(in, out, blocks, m_SK, 12); |
423 | 0 | } |
424 | | |
425 | | void Camellia_256::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const |
426 | 0 | { |
427 | 0 | verify_key_set(m_SK.empty() == false); |
428 | 0 | Camellia_F::decrypt(in, out, blocks, m_SK, 12); |
429 | 0 | } |
430 | | |
431 | | void Camellia_128::key_schedule(const uint8_t key[], size_t length) |
432 | 22 | { |
433 | 22 | Camellia_F::key_schedule(m_SK, key, length); |
434 | 22 | } |
435 | | |
436 | | void Camellia_192::key_schedule(const uint8_t key[], size_t length) |
437 | 0 | { |
438 | 0 | Camellia_F::key_schedule(m_SK, key, length); |
439 | 0 | } |
440 | | |
441 | | void Camellia_256::key_schedule(const uint8_t key[], size_t length) |
442 | 19 | { |
443 | 19 | Camellia_F::key_schedule(m_SK, key, length); |
444 | 19 | } |
445 | | |
446 | | void Camellia_128::clear() |
447 | 0 | { |
448 | 0 | zap(m_SK); |
449 | 0 | } |
450 | | |
451 | | void Camellia_192::clear() |
452 | 0 | { |
453 | 0 | zap(m_SK); |
454 | 0 | } |
455 | | |
456 | | void Camellia_256::clear() |
457 | 0 | { |
458 | 0 | zap(m_SK); |
459 | 0 | } |
460 | | |
461 | | } |