1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/*
* Blue Midnight Wish 512 (Round 2 tweaked)
* (C) 2009 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#include <botan/bmw_512.h>
#include <botan/loadstor.h>
#include <botan/rotate.h>
namespace Botan {
namespace {
inline u64bit S0(u64bit X)
{
return (X >> 1) ^ (X << 3) ^ rotate_left(X, 4) ^ rotate_left(X, 37);
}
inline u64bit S1(u64bit X)
{
return (X >> 1) ^ (X << 2) ^ rotate_left(X, 13) ^ rotate_left(X, 43);
}
inline u64bit S2(u64bit X)
{
return (X >> 2) ^ (X << 1) ^ rotate_left(X, 19) ^ rotate_left(X, 53);
}
inline u64bit S3(u64bit X)
{
return (X >> 2) ^ (X << 2) ^ rotate_left(X, 28) ^ rotate_left(X, 59);
}
inline u64bit S4(u64bit X)
{
return (X >> 1) ^ X;
}
/**
* Blue Midnight Wish 512 compression function
*/
void BMW_512_compress(u64bit H[16], const u64bit M[16], u64bit Q[32])
{
const u32bit EXPAND_1_ROUNDS = 2;
for(u32bit i = 0; i != 16; ++i)
Q[i] = H[i] ^ M[i];
Q[16] = Q[ 5] - Q[ 7] + Q[10] + Q[13] + Q[14];
Q[17] = Q[ 6] - Q[ 8] + Q[11] + Q[14] - Q[15];
Q[18] = Q[ 0] + Q[ 7] + Q[ 9] - Q[12] + Q[15];
Q[19] = Q[ 0] - Q[ 1] + Q[ 8] - Q[10] + Q[13];
Q[20] = Q[ 1] + Q[ 2] + Q[ 9] - Q[11] - Q[14];
Q[21] = Q[ 3] - Q[ 2] + Q[10] - Q[12] + Q[15];
Q[22] = Q[ 4] - Q[ 0] - Q[ 3] - Q[11] + Q[13];
Q[23] = Q[ 1] - Q[ 4] - Q[ 5] - Q[12] - Q[14];
Q[24] = Q[ 2] - Q[ 5] - Q[ 6] + Q[13] - Q[15];
Q[25] = Q[ 0] - Q[ 3] + Q[ 6] - Q[ 7] + Q[14];
Q[26] = Q[ 8] - Q[ 1] - Q[ 4] - Q[ 7] + Q[15];
Q[27] = Q[ 8] - Q[ 0] - Q[ 2] - Q[ 5] + Q[ 9];
Q[28] = Q[ 1] + Q[ 3] - Q[ 6] - Q[ 9] + Q[10];
Q[29] = Q[ 2] + Q[ 4] + Q[ 7] + Q[10] + Q[11];
Q[30] = Q[ 3] - Q[ 5] + Q[ 8] - Q[11] - Q[12];
Q[31] = Q[12] - Q[ 4] - Q[ 6] - Q[ 9] + Q[13];
Q[ 0] = S0(Q[16]) + H[ 1];
Q[ 1] = S1(Q[17]) + H[ 2];
Q[ 2] = S2(Q[18]) + H[ 3];
Q[ 3] = S3(Q[19]) + H[ 4];
Q[ 4] = S4(Q[20]) + H[ 5];
Q[ 5] = S0(Q[21]) + H[ 6];
Q[ 6] = S1(Q[22]) + H[ 7];
Q[ 7] = S2(Q[23]) + H[ 8];
Q[ 8] = S3(Q[24]) + H[ 9];
Q[ 9] = S4(Q[25]) + H[10];
Q[10] = S0(Q[26]) + H[11];
Q[11] = S1(Q[27]) + H[12];
Q[12] = S2(Q[28]) + H[13];
Q[13] = S3(Q[29]) + H[14];
Q[14] = S4(Q[30]) + H[15];
Q[15] = S0(Q[31]) + H[ 0];
for(u32bit i = 16; i != 16 + EXPAND_1_ROUNDS; ++i)
{
Q[i] = S1(Q[i-16]) + S2(Q[i-15]) + S3(Q[i-14]) + S0(Q[i-13]) +
S1(Q[i-12]) + S2(Q[i-11]) + S3(Q[i-10]) + S0(Q[i- 9]) +
S1(Q[i- 8]) + S2(Q[i- 7]) + S3(Q[i- 6]) + S0(Q[i- 5]) +
S1(Q[i- 4]) + S2(Q[i- 3]) + S3(Q[i- 2]) + S0(Q[i- 1]) +
((rotate_left(M[(i-16) % 16], ((i-16)%16) + 1) +
rotate_left(M[(i-13) % 16], ((i-13)%16) + 1) -
rotate_left(M[(i- 6) % 16], ((i-6)%16) + 1) +
(0x0555555555555555 * i)) ^ H[(i-16+7)%16]);
}
for(u32bit i = 16 + EXPAND_1_ROUNDS; i != 32; ++i)
{
Q[i] = Q[i-16] + rotate_left(Q[i-15], 5) +
Q[i-14] + rotate_left(Q[i-13], 11) +
Q[i-12] + rotate_left(Q[i-11], 27) +
Q[i-10] + rotate_left(Q[i- 9], 32) +
Q[i- 8] + rotate_left(Q[i- 7], 37) +
Q[i- 6] + rotate_left(Q[i- 5], 43) +
Q[i- 4] + rotate_left(Q[i- 3], 53) +
S4(Q[i - 2]) + ((Q[i-1] >> 2) ^ Q[i-1]) +
((rotate_left(M[(i-16) % 16], ((i-16)%16 + 1)) +
rotate_left(M[(i-13) % 16], ((i-13)%16 + 1)) -
rotate_left(M[(i- 6) % 16], ((i-6)%16 + 1)) +
(0x0555555555555555 * i)) ^ H[(i-16+7)%16]);
}
u64bit XL = Q[16] ^ Q[17] ^ Q[18] ^ Q[19] ^
Q[20] ^ Q[21] ^ Q[22] ^ Q[23];
u64bit XH = Q[24] ^ Q[25] ^ Q[26] ^ Q[27] ^
Q[28] ^ Q[29] ^ Q[30] ^ Q[31];
XH ^= XL;
H[ 0] = ((XH << 5) ^ (Q[16] >> 5) ^ M[0]) + (XL ^ Q[24] ^ Q[0]);
H[ 1] = ((XH >> 7) ^ (Q[17] << 8) ^ M[1]) + (XL ^ Q[25] ^ Q[1]);
H[ 2] = ((XH >> 5) ^ (Q[18] << 5) ^ M[2]) + (XL ^ Q[26] ^ Q[2]);
H[ 3] = ((XH >> 1) ^ (Q[19] << 5) ^ M[3]) + (XL ^ Q[27] ^ Q[3]);
H[ 4] = ((XH >> 3) ^ (Q[20] ) ^ M[4]) + (XL ^ Q[28] ^ Q[4]);
H[ 5] = ((XH << 6) ^ (Q[21] >> 6) ^ M[5]) + (XL ^ Q[29] ^ Q[5]);
H[ 6] = ((XH >> 4) ^ (Q[22] << 6) ^ M[6]) + (XL ^ Q[30] ^ Q[6]);
H[ 7] = ((XH >> 11) ^ (Q[23] << 2) ^ M[7]) + (XL ^ Q[31] ^ Q[7]);
H[ 8] = rotate_left(H[4], 9) + (XH ^ Q[24] ^ M[ 8]) + ((XL << 8) ^ Q[23] ^ Q[ 8]);
H[ 9] = rotate_left(H[5], 10) + (XH ^ Q[25] ^ M[ 9]) + ((XL >> 6) ^ Q[16] ^ Q[ 9]);
H[10] = rotate_left(H[6], 11) + (XH ^ Q[26] ^ M[10]) + ((XL << 6) ^ Q[17] ^ Q[10]);
H[11] = rotate_left(H[7], 12) + (XH ^ Q[27] ^ M[11]) + ((XL << 4) ^ Q[18] ^ Q[11]);
H[12] = rotate_left(H[0], 13) + (XH ^ Q[28] ^ M[12]) + ((XL >> 3) ^ Q[19] ^ Q[12]);
H[13] = rotate_left(H[1], 14) + (XH ^ Q[29] ^ M[13]) + ((XL >> 4) ^ Q[20] ^ Q[13]);
H[14] = rotate_left(H[2], 15) + (XH ^ Q[30] ^ M[14]) + ((XL >> 7) ^ Q[21] ^ Q[14]);
H[15] = rotate_left(H[3], 16) + (XH ^ Q[31] ^ M[15]) + ((XL >> 2) ^ Q[22] ^ Q[15]);
}
}
void BMW_512::compress_n(const byte input[], u32bit blocks)
{
for(u32bit i = 0; i != blocks; ++i)
{
load_le(&M[0], input, M.size());
BMW_512_compress(&H[0], &M[0], &Q[0]);
input += HASH_BLOCK_SIZE;
}
}
/*
* Copy out the digest
*/
void BMW_512::copy_out(byte output[])
{
u64bit final[16] = {
0xAAAAAAAAAAAAAAA0, 0xAAAAAAAAAAAAAAA1,
0xAAAAAAAAAAAAAAA2, 0xAAAAAAAAAAAAAAA3,
0xAAAAAAAAAAAAAAA4, 0xAAAAAAAAAAAAAAA5,
0xAAAAAAAAAAAAAAA6, 0xAAAAAAAAAAAAAAA7,
0xAAAAAAAAAAAAAAA8, 0xAAAAAAAAAAAAAAA9,
0xAAAAAAAAAAAAAAAA, 0xAAAAAAAAAAAAAAAB,
0xAAAAAAAAAAAAAAAC, 0xAAAAAAAAAAAAAAAD,
0xAAAAAAAAAAAAAAAE, 0xAAAAAAAAAAAAAAAF };
BMW_512_compress(final, &H[0], &Q[0]);
for(u32bit i = 0; i != OUTPUT_LENGTH; i += 8)
store_le(final[8 + i/8], output + i);
}
/*
* Clear memory of sensitive data
*/
void BMW_512::clear()
{
MDx_HashFunction::clear();
zeroise(M);
zeroise(Q);
H[ 0] = 0x8081828384858687;
H[ 1] = 0x88898A8B8C8D8E8F;
H[ 2] = 0x9091929394959697;
H[ 3] = 0x98999A9B9C9D9E9F;
H[ 4] = 0xA0A1A2A3A4A5A6A7;
H[ 5] = 0xA8A9AAABACADAEAF;
H[ 6] = 0xB0B1B2B3B4B5B6B7;
H[ 7] = 0xB8B9BABBBCBDBEBF;
H[ 8] = 0xC0C1C2C3C4C5C6C7;
H[ 9] = 0xC8C9CACBCCCDCECF;
H[10] = 0xD0D1D2D3D4D5D6D7;
H[11] = 0xD8D9DADBDCDDDEDF;
H[12] = 0xE0E1E2E3E4E5E6E7;
H[13] = 0xE8E9EAEBECEDEEEF;
H[14] = 0xF0F1F2F3F4F5F6F7;
H[15] = 0xF8F9FAFBFCFDFEFF;
}
}
|
