-
Notifications
You must be signed in to change notification settings - Fork 283
/
cryptonight.c
executable file
·196 lines (161 loc) · 6.8 KB
/
cryptonight.c
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
// Copyright (c) 2012-2013 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
// Modified for CPUminer by Lucas Jones
#include "cpuminer-config.h"
#include "miner.h"
#include "crypto/oaes_lib.h"
#include "crypto/c_keccak.h"
#include "crypto/c_groestl.h"
#include "crypto/c_blake256.h"
#include "crypto/c_jh.h"
#include "crypto/c_skein.h"
#include "cryptonight.h"
struct cryptonight_ctx {
uint8_t long_state[MEMORY];
union cn_slow_hash_state state;
uint8_t text[INIT_SIZE_BYTE];
uint8_t a[AES_BLOCK_SIZE];
uint8_t b[AES_BLOCK_SIZE];
uint8_t c[AES_BLOCK_SIZE];
oaes_ctx* aes_ctx;
};
static void do_blake_hash(const void* input, size_t len, char* output) {
blake256_hash((uint8_t*)output, input, len);
}
void do_groestl_hash(const void* input, size_t len, char* output) {
groestl(input, len * 8, (uint8_t*)output);
}
static void do_jh_hash(const void* input, size_t len, char* output) {
int r = jh_hash(HASH_SIZE * 8, input, 8 * len, (uint8_t*)output);
}
static void do_skein_hash(const void* input, size_t len, char* output) {
int r = skein_hash(8 * HASH_SIZE, input, 8 * len, (uint8_t*)output);
}
void hash_permutation(union hash_state *state) {
keccakf((uint64_t*)state, 24);
}
void hash_process(union hash_state *state, const uint8_t *buf, size_t count) {
keccak1600(buf, count, (uint8_t*)state);
}
extern int fast_aesb_single_round(const uint8_t *in, uint8_t*out, const uint8_t *expandedKey);
extern int aesb_single_round(const uint8_t *in, uint8_t*out, const uint8_t *expandedKey);
extern int aesb_pseudo_round_mut(uint8_t *val, uint8_t *expandedKey);
extern int fast_aesb_pseudo_round_mut(uint8_t *val, uint8_t *expandedKey);
static void (* const extra_hashes[4])(const void *, size_t, char *) = {
do_blake_hash, do_groestl_hash, do_jh_hash, do_skein_hash
};
uint64_t mul128(uint64_t multiplier, uint64_t multiplicand, uint64_t* product_hi) {
// multiplier = ab = a * 2^32 + b
// multiplicand = cd = c * 2^32 + d
// ab * cd = a * c * 2^64 + (a * d + b * c) * 2^32 + b * d
uint64_t a = hi_dword(multiplier);
uint64_t b = lo_dword(multiplier);
uint64_t c = hi_dword(multiplicand);
uint64_t d = lo_dword(multiplicand);
uint64_t ac = a * c;
uint64_t ad = a * d;
uint64_t bc = b * c;
uint64_t bd = b * d;
uint64_t adbc = ad + bc;
uint64_t adbc_carry = adbc < ad ? 1 : 0;
// multiplier * multiplicand = product_hi * 2^64 + product_lo
uint64_t product_lo = bd + (adbc << 32);
uint64_t product_lo_carry = product_lo < bd ? 1 : 0;
*product_hi = ac + (adbc >> 32) + (adbc_carry << 32) + product_lo_carry;
return product_lo;
}
static size_t e2i(const uint8_t* a) {
return (*((uint64_t*) a) / AES_BLOCK_SIZE) & (MEMORY / AES_BLOCK_SIZE - 1);
}
static void mul(const uint8_t* a, const uint8_t* b, uint8_t* res) {
((uint64_t*) res)[1] = mul128(((uint64_t*) a)[0], ((uint64_t*) b)[0], (uint64_t*) res);
}
static void sum_half_blocks(uint8_t* a, const uint8_t* b) {
((uint64_t*) a)[0] += ((uint64_t*) b)[0];
((uint64_t*) a)[1] += ((uint64_t*) b)[1];
}
static void sum_half_blocks_dst(const uint8_t* a, const uint8_t* b, uint8_t* dst) {
((uint64_t*) dst)[0] = ((uint64_t*) a)[0] + ((uint64_t*) b)[0];
((uint64_t*) dst)[1] = ((uint64_t*) a)[1] + ((uint64_t*) b)[1];
}
static void mul_sum_dst(const uint8_t* a, const uint8_t* b, const uint8_t* c, uint8_t* dst) {
((uint64_t*) dst)[1] = mul128(((uint64_t*) a)[0], ((uint64_t*) b)[0], (uint64_t*) dst) + ((uint64_t*) c)[1];
((uint64_t*) dst)[0] += ((uint64_t*) c)[0];
}
static void mul_sum_xor_dst(const uint8_t* a, uint8_t* c, uint8_t* dst) {
uint64_t hi, lo = mul128(((uint64_t*) a)[0], ((uint64_t*) dst)[0], &hi) + ((uint64_t*) c)[1];
hi += ((uint64_t*) c)[0];
((uint64_t*) c)[0] = ((uint64_t*) dst)[0] ^ hi;
((uint64_t*) c)[1] = ((uint64_t*) dst)[1] ^ lo;
((uint64_t*) dst)[0] = hi;
((uint64_t*) dst)[1] = lo;
}
static void copy_block(uint8_t* dst, const uint8_t* src) {
((uint64_t*) dst)[0] = ((uint64_t*) src)[0];
((uint64_t*) dst)[1] = ((uint64_t*) src)[1];
}
static void xor_blocks(uint8_t* a, const uint8_t* b) {
((uint64_t*) a)[0] ^= ((uint64_t*) b)[0];
((uint64_t*) a)[1] ^= ((uint64_t*) b)[1];
}
static void xor_blocks_dst(const uint8_t* a, const uint8_t* b, uint8_t* dst) {
((uint64_t*) dst)[0] = ((uint64_t*) a)[0] ^ ((uint64_t*) b)[0];
((uint64_t*) dst)[1] = ((uint64_t*) a)[1] ^ ((uint64_t*) b)[1];
}
void cryptonight_hash_ctx(void* output, const void* input, size_t len, struct cryptonight_ctx* ctx) {
size_t i, j;
hash_process(&ctx->state.hs, (const uint8_t*) input, len);
ctx->aes_ctx = (oaes_ctx*) oaes_alloc();
memcpy(ctx->text, ctx->state.init, INIT_SIZE_BYTE);
oaes_key_import_data(ctx->aes_ctx, ctx->state.hs.b, AES_KEY_SIZE);
for (i = 0; likely(i < MEMORY); i += INIT_SIZE_BYTE) {
#undef RND
#define RND(p) aesb_pseudo_round_mut(&ctx->text[AES_BLOCK_SIZE * p], ctx->aes_ctx->key->exp_data);
RND(0);
RND(1);
RND(2);
RND(3);
RND(4);
RND(5);
RND(6);
RND(7);
memcpy(&ctx->long_state[i], ctx->text, INIT_SIZE_BYTE);
}
xor_blocks_dst(&ctx->state.k[0], &ctx->state.k[32], ctx->a);
xor_blocks_dst(&ctx->state.k[16], &ctx->state.k[48], ctx->b);
for (i = 0; likely(i < ITER / 4); ++i) {
j = e2i(ctx->a) * AES_BLOCK_SIZE;
aesb_single_round(&ctx->long_state[j], ctx->c, ctx->a);
xor_blocks_dst(ctx->c, ctx->b, &ctx->long_state[j]);
mul_sum_xor_dst(ctx->c, ctx->a, &ctx->long_state[e2i(ctx->c) * AES_BLOCK_SIZE]);
j = e2i(ctx->a) * AES_BLOCK_SIZE;
aesb_single_round(&ctx->long_state[j], ctx->b, ctx->a);
xor_blocks_dst(ctx->b, ctx->c, &ctx->long_state[j]);
mul_sum_xor_dst(ctx->b, ctx->a, &ctx->long_state[e2i(ctx->b) * AES_BLOCK_SIZE]);
}
memcpy(ctx->text, ctx->state.init, INIT_SIZE_BYTE);
oaes_key_import_data(ctx->aes_ctx, &ctx->state.hs.b[32], AES_KEY_SIZE);
for (i = 0; likely(i < MEMORY); i += INIT_SIZE_BYTE) {
#undef RND
#define RND(p) xor_blocks(&ctx->text[p * AES_BLOCK_SIZE], &ctx->long_state[i + p * AES_BLOCK_SIZE]); \
aesb_pseudo_round_mut(&ctx->text[p * AES_BLOCK_SIZE], ctx->aes_ctx->key->exp_data);
RND(0);
RND(1);
RND(2);
RND(3);
RND(4);
RND(5);
RND(6);
RND(7);
}
memcpy(ctx->state.init, ctx->text, INIT_SIZE_BYTE);
hash_permutation(&ctx->state.hs);
extra_hashes[ctx->state.hs.b[0] & 3](&ctx->state, 200, output);
oaes_free((OAES_CTX **) &ctx->aes_ctx);
}
void cryptonight_hash(void* output, const void* input, size_t len) {
struct cryptonight_ctx *ctx = (struct cryptonight_ctx*)malloc(sizeof(struct cryptonight_ctx));
cryptonight_hash_ctx(output, input, len, ctx);
free(ctx);
}