-
Notifications
You must be signed in to change notification settings - Fork 0
/
DSHA1.h
201 lines (177 loc) · 9.2 KB
/
DSHA1.h
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
#ifndef DSHA1_H
#define DSHA1_H
#include <Arduino.h>
class DSHA1 {
public:
static const size_t OUTPUT_SIZE = 20;
DSHA1() {
initialize(s);
}
DSHA1 &write(const unsigned char *data, size_t len) {
size_t bufsize = bytes % 64;
if (bufsize && bufsize + len >= 64) {
memcpy(buf + bufsize, data, 64 - bufsize);
bytes += 64 - bufsize;
data += 64 - bufsize;
transform(s, buf);
bufsize = 0;
}
while (len >= 64) {
transform(s, data);
bytes += 64;
data += 64;
len -= 64;
}
if (len > 0) {
memcpy(buf + bufsize, data, len);
bytes += len;
}
return *this;
}
void finalize(unsigned char hash[OUTPUT_SIZE]) {
const unsigned char pad[64] = {0x80};
unsigned char sizedesc[8];
writeBE64(sizedesc, bytes << 3);
write(pad, 1 + ((119 - (bytes % 64)) % 64));
write(sizedesc, 8);
writeBE32(hash, s[0]);
writeBE32(hash + 4, s[1]);
writeBE32(hash + 8, s[2]);
writeBE32(hash + 12, s[3]);
writeBE32(hash + 16, s[4]);
}
DSHA1 &reset() {
bytes = 0;
initialize(s);
return *this;
}
// Warmup the cache and get a boost in performance
DSHA1 &warmup() {
uint8_t warmup[20];
this->write((uint8_t *)"warmupwarmupwa", 20).finalize(warmup);
return *this;
}
private:
uint32_t s[5];
unsigned char buf[64];
uint64_t bytes;
const uint32_t k1 = 0x5A827999ul;
const uint32_t k2 = 0x6ED9EBA1ul;
const uint32_t k3 = 0x8F1BBCDCul;
const uint32_t k4 = 0xCA62C1D6ul;
uint32_t inline f1(uint32_t b, uint32_t c, uint32_t d) { return d ^ (b & (c ^ d)); }
uint32_t inline f2(uint32_t b, uint32_t c, uint32_t d) { return b ^ c ^ d; }
uint32_t inline f3(uint32_t b, uint32_t c, uint32_t d) { return (b & c) | (d & (b | c)); }
uint32_t inline left(uint32_t x) { return (x << 1) | (x >> 31); }
void inline Round(uint32_t a, uint32_t &b, uint32_t c, uint32_t d, uint32_t &e,
uint32_t f, uint32_t k, uint32_t w) {
e += ((a << 5) | (a >> 27)) + f + k + w;
b = (b << 30) | (b >> 2);
}
void initialize(uint32_t s[5]) {
s[0] = 0x67452301ul;
s[1] = 0xEFCDAB89ul;
s[2] = 0x98BADCFEul;
s[3] = 0x10325476ul;
s[4] = 0xC3D2E1F0ul;
}
void transform(uint32_t *s, const unsigned char *chunk) {
uint32_t a = s[0], b = s[1], c = s[2], d = s[3], e = s[4];
uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15;
Round(a, b, c, d, e, f1(b, c, d), k1, w0 = readBE32(chunk + 0));
Round(e, a, b, c, d, f1(a, b, c), k1, w1 = readBE32(chunk + 4));
Round(d, e, a, b, c, f1(e, a, b), k1, w2 = readBE32(chunk + 8));
Round(c, d, e, a, b, f1(d, e, a), k1, w3 = readBE32(chunk + 12));
Round(b, c, d, e, a, f1(c, d, e), k1, w4 = readBE32(chunk + 16));
Round(a, b, c, d, e, f1(b, c, d), k1, w5 = readBE32(chunk + 20));
Round(e, a, b, c, d, f1(a, b, c), k1, w6 = readBE32(chunk + 24));
Round(d, e, a, b, c, f1(e, a, b), k1, w7 = readBE32(chunk + 28));
Round(c, d, e, a, b, f1(d, e, a), k1, w8 = readBE32(chunk + 32));
Round(b, c, d, e, a, f1(c, d, e), k1, w9 = readBE32(chunk + 36));
Round(a, b, c, d, e, f1(b, c, d), k1, w10 = readBE32(chunk + 40));
Round(e, a, b, c, d, f1(a, b, c), k1, w11 = readBE32(chunk + 44));
Round(d, e, a, b, c, f1(e, a, b), k1, w12 = readBE32(chunk + 48));
Round(c, d, e, a, b, f1(d, e, a), k1, w13 = readBE32(chunk + 52));
Round(b, c, d, e, a, f1(c, d, e), k1, w14 = readBE32(chunk + 56));
Round(a, b, c, d, e, f1(b, c, d), k1, w15 = readBE32(chunk + 60));
Round(e, a, b, c, d, f1(a, b, c), k1, w0 = left(w0 ^ w13 ^ w8 ^ w2));
Round(d, e, a, b, c, f1(e, a, b), k1, w1 = left(w1 ^ w14 ^ w9 ^ w3));
Round(c, d, e, a, b, f1(d, e, a), k1, w2 = left(w2 ^ w15 ^ w10 ^ w4));
Round(b, c, d, e, a, f1(c, d, e), k1, w3 = left(w3 ^ w0 ^ w11 ^ w5));
Round(a, b, c, d, e, f2(b, c, d), k2, w4 = left(w4 ^ w1 ^ w12 ^ w6));
Round(e, a, b, c, d, f2(a, b, c), k2, w5 = left(w5 ^ w2 ^ w13 ^ w7));
Round(d, e, a, b, c, f2(e, a, b), k2, w6 = left(w6 ^ w3 ^ w14 ^ w8));
Round(c, d, e, a, b, f2(d, e, a), k2, w7 = left(w7 ^ w4 ^ w15 ^ w9));
Round(b, c, d, e, a, f2(c, d, e), k2, w8 = left(w8 ^ w5 ^ w0 ^ w10));
Round(a, b, c, d, e, f2(b, c, d), k2, w9 = left(w9 ^ w6 ^ w1 ^ w11));
Round(e, a, b, c, d, f2(a, b, c), k2, w10 = left(w10 ^ w7 ^ w2 ^ w12));
Round(d, e, a, b, c, f2(e, a, b), k2, w11 = left(w11 ^ w8 ^ w3 ^ w13));
Round(c, d, e, a, b, f2(d, e, a), k2, w12 = left(w12 ^ w9 ^ w4 ^ w14));
Round(b, c, d, e, a, f2(c, d, e), k2, w13 = left(w13 ^ w10 ^ w5 ^ w15));
Round(a, b, c, d, e, f2(b, c, d), k2, w14 = left(w14 ^ w11 ^ w6 ^ w0));
Round(e, a, b, c, d, f2(a, b, c), k2, w15 = left(w15 ^ w12 ^ w7 ^ w1));
Round(d, e, a, b, c, f2(e, a, b), k2, w0 = left(w0 ^ w13 ^ w8 ^ w2));
Round(c, d, e, a, b, f2(d, e, a), k2, w1 = left(w1 ^ w14 ^ w9 ^ w3));
Round(b, c, d, e, a, f2(c, d, e), k2, w2 = left(w2 ^ w15 ^ w10 ^ w4));
Round(a, b, c, d, e, f2(b, c, d), k2, w3 = left(w3 ^ w0 ^ w11 ^ w5));
Round(e, a, b, c, d, f2(a, b, c), k2, w4 = left(w4 ^ w1 ^ w12 ^ w6));
Round(d, e, a, b, c, f2(e, a, b), k2, w5 = left(w5 ^ w2 ^ w13 ^ w7));
Round(c, d, e, a, b, f2(d, e, a), k2, w6 = left(w6 ^ w3 ^ w14 ^ w8));
Round(b, c, d, e, a, f2(c, d, e), k2, w7 = left(w7 ^ w4 ^ w15 ^ w9));
Round(a, b, c, d, e, f3(b, c, d), k3, w8 = left(w8 ^ w5 ^ w0 ^ w10));
Round(e, a, b, c, d, f3(a, b, c), k3, w9 = left(w9 ^ w6 ^ w1 ^ w11));
Round(d, e, a, b, c, f3(e, a, b), k3, w10 = left(w10 ^ w7 ^ w2 ^ w12));
Round(c, d, e, a, b, f3(d, e, a), k3, w11 = left(w11 ^ w8 ^ w3 ^ w13));
Round(b, c, d, e, a, f3(c, d, e), k3, w12 = left(w12 ^ w9 ^ w4 ^ w14));
Round(a, b, c, d, e, f3(b, c, d), k3, w13 = left(w13 ^ w10 ^ w5 ^ w15));
Round(e, a, b, c, d, f3(a, b, c), k3, w14 = left(w14 ^ w11 ^ w6 ^ w0));
Round(d, e, a, b, c, f3(e, a, b), k3, w15 = left(w15 ^ w12 ^ w7 ^ w1));
Round(c, d, e, a, b, f3(d, e, a), k3, w0 = left(w0 ^ w13 ^ w8 ^ w2));
Round(b, c, d, e, a, f3(c, d, e), k3, w1 = left(w1 ^ w14 ^ w9 ^ w3));
Round(a, b, c, d, e, f3(b, c, d), k3, w2 = left(w2 ^ w15 ^ w10 ^ w4));
Round(e, a, b, c, d, f3(a, b, c), k3, w3 = left(w3 ^ w0 ^ w11 ^ w5));
Round(d, e, a, b, c, f3(e, a, b), k3, w4 = left(w4 ^ w1 ^ w12 ^ w6));
Round(c, d, e, a, b, f3(d, e, a), k3, w5 = left(w5 ^ w2 ^ w13 ^ w7));
Round(b, c, d, e, a, f3(c, d, e), k3, w6 = left(w6 ^ w3 ^ w14 ^ w8));
Round(a, b, c, d, e, f3(b, c, d), k3, w7 = left(w7 ^ w4 ^ w15 ^ w9));
Round(e, a, b, c, d, f3(a, b, c), k3, w8 = left(w8 ^ w5 ^ w0 ^ w10));
Round(d, e, a, b, c, f3(e, a, b), k3, w9 = left(w9 ^ w6 ^ w1 ^ w11));
Round(c, d, e, a, b, f3(d, e, a), k3, w10 = left(w10 ^ w7 ^ w2 ^ w12));
Round(b, c, d, e, a, f3(c, d, e), k3, w11 = left(w11 ^ w8 ^ w3 ^ w13));
Round(a, b, c, d, e, f2(b, c, d), k4, w12 = left(w12 ^ w9 ^ w4 ^ w14));
Round(e, a, b, c, d, f2(a, b, c), k4, w13 = left(w13 ^ w10 ^ w5 ^ w15));
Round(d, e, a, b, c, f2(e, a, b), k4, w14 = left(w14 ^ w11 ^ w6 ^ w0));
Round(c, d, e, a, b, f2(d, e, a), k4, w15 = left(w15 ^ w12 ^ w7 ^ w1));
Round(b, c, d, e, a, f2(c, d, e), k4, w0 = left(w0 ^ w13 ^ w8 ^ w2));
Round(a, b, c, d, e, f2(b, c, d), k4, w1 = left(w1 ^ w14 ^ w9 ^ w3));
Round(e, a, b, c, d, f2(a, b, c), k4, w2 = left(w2 ^ w15 ^ w10 ^ w4));
Round(d, e, a, b, c, f2(e, a, b), k4, w3 = left(w3 ^ w0 ^ w11 ^ w5));
Round(c, d, e, a, b, f2(d, e, a), k4, w4 = left(w4 ^ w1 ^ w12 ^ w6));
Round(b, c, d, e, a, f2(c, d, e), k4, w5 = left(w5 ^ w2 ^ w13 ^ w7));
Round(a, b, c, d, e, f2(b, c, d), k4, w6 = left(w6 ^ w3 ^ w14 ^ w8));
Round(e, a, b, c, d, f2(a, b, c), k4, w7 = left(w7 ^ w4 ^ w15 ^ w9));
Round(d, e, a, b, c, f2(e, a, b), k4, w8 = left(w8 ^ w5 ^ w0 ^ w10));
Round(c, d, e, a, b, f2(d, e, a), k4, w9 = left(w9 ^ w6 ^ w1 ^ w11));
Round(b, c, d, e, a, f2(c, d, e), k4, w10 = left(w10 ^ w7 ^ w2 ^ w12));
Round(a, b, c, d, e, f2(b, c, d), k4, w11 = left(w11 ^ w8 ^ w3 ^ w13));
Round(e, a, b, c, d, f2(a, b, c), k4, w12 = left(w12 ^ w9 ^ w4 ^ w14));
Round(d, e, a, b, c, f2(e, a, b), k4, left(w13 ^ w10 ^ w5 ^ w15));
Round(c, d, e, a, b, f2(d, e, a), k4, left(w14 ^ w11 ^ w6 ^ w0));
Round(b, c, d, e, a, f2(c, d, e), k4, left(w15 ^ w12 ^ w7 ^ w1));
s[0] += a;
s[1] += b;
s[2] += c;
s[3] += d;
s[4] += e;
}
uint32_t static inline readBE32(const unsigned char *ptr) {
return __builtin_bswap32(*(uint32_t *)ptr);
}
void static inline writeBE32(unsigned char *ptr, uint32_t x) {
*(uint32_t *)ptr = __builtin_bswap32(x);
}
void static inline writeBE64(unsigned char *ptr, uint64_t x) {
*(uint64_t *)ptr = __builtin_bswap64(x);
}
};
#endif