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
203
204
205
206
207
208
209
210
211
|
#include "../i_util.h"
#include "../crypto.h"
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <stdio.h>
void endian_swap128(__uint128_t *x){
uint8_t *y = (uint8_t*)x;
for (size_t low = 0, high = sizeof(__uint128_t) - 1; high > low; low++, high--){
y[low] ^= y[high];
y[high] ^= y[low];
y[low] ^= y[high];
}
}
void endian_swap64(uint64_t *x){
uint8_t *y = (uint8_t*)x;
for (size_t low = 0, high = sizeof(uint64_t) - 1; high > low; low++, high--){
y[low] ^= y[high];
y[high] ^= y[low];
y[low] ^= y[high];
}
}
struct iv {
uint64_t h0, h1, h2, h3, h4, h5, h6, h7;
};
static const struct iv sha512_iv = {.h0 = 0x6a09e667f3bcc908, .h1 = 0xbb67ae8584caa73b, .h2 = 0x3c6ef372fe94f82b, .h3 = 0xa54ff53a5f1d36f1,
.h4 = 0x510e527fade682d1, .h5 = 0x9b05688c2b3e6c1f, .h6 = 0x1f83d9abfb41bd6b, .h7 = 0x5be0cd19137e2179};
static const struct iv sha384_iv = {.h0 = 0xcbbb9d5dc1059ed8, .h1 = 0x629a292a367cd507, .h2 = 0x9159015a3070dd17, .h3 = 0x152fecd8f70e5939,
.h4 = 0x67332667ffc00b31, .h5 = 0x8eb44a8768581511, .h6 = 0xdb0c2e0d64f98fa7, .h7 = 0x47b5481dbefa4fa4};
void sha512_gen(uint64_t* out_stream, uint8_t* input, struct iv sha_iv){
uint64_t h0 = sha_iv.h0, h1 = sha_iv.h1, h2 = sha_iv.h2, h3 = sha_iv.h3, h4 = sha_iv.h4, h5 = sha_iv.h5, h6 = sha_iv.h6, h7 = sha_iv.h7;
const uint64_t k[80] = {0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc, 0x3956c25bf348b538,
0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118, 0xd807aa98a3030242, 0x12835b0145706fbe,
0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2, 0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235,
0xc19bf174cf692694, 0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65,
0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5, 0x983e5152ee66dfab,
0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4, 0xc6e00bf33da88fc2, 0xd5a79147930aa725,
0x06ca6351e003826f, 0x142929670a0e6e70, 0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed,
0x53380d139d95b3df, 0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b,
0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30, 0xd192e819d6ef5218,
0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8, 0x19a4c116b8d2d0c8, 0x1e376c085141ab53,
0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8, 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373,
0x682e6ff3d6b2b8a3, 0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec,
0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b, 0xca273eceea26619c,
0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178, 0x06f067aa72176fba, 0x0a637dc5a2c898a6,
0x113f9804bef90dae, 0x1b710b35131c471b, 0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc,
0x431d67c49c100d4c, 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817};
size_t len = 0;
for(int i = 0; input[i]!='\0'; i++) len++;
size_t blen = len*8;
int ulen = 0;
size_t l = len * 8;
size_t k2 = (896 - ( (l + 1) % 1024 )) % 1024;
ulen = ((l + k2 + 1) / 8) + 16;
uint64_t tlen = ulen/128;
uint8_t* by = calloc(ulen, sizeof * by);
for (size_t i = 0; i < len; i++)
by[i] = input[i];
by[len] = 0x80;
//this part is very lame
__uint128_t bigL = l;
endian_swap128(&bigL);
memcpy(&by[ulen - sizeof(__uint128_t)], &bigL, sizeof(__uint128_t));
uint64_t *msg = ((uint64_t*)&by[0]);
for (int i = 0; i < tlen * 16; i++)
endian_swap64(msg++);
for(int z = 0; z < (int)tlen; z++){
uint64_t* M = ((uint64_t*)(by));
uint64_t W[80];
//i dont really understand this 0->16 part
uint64_t *m = &M[(z * 16)];
for (int i = 0; i < 16; ++i){
W[i] = *m;
++m;
}
for (int i = 16; i != 80; i++){
W[i] = (i_rr64(W[i - 2],19) ^ i_rr64(W[i - 2], 61) ^ (W[i - 2] >> 6))
+ W[i - 7] + (i_rr64(W[i - 15],1) ^ i_rr64(W[i - 15],8) ^ (W[i - 15] >> 7)) + W[i - 16];
}
uint64_t a = h0;
uint64_t b = h1;
uint64_t c = h2;
uint64_t d = h3;
uint64_t e = h4;
uint64_t f = h5;
uint64_t g = h6;
uint64_t h = h7;
for(int i = 0; i != 80; i++){
uint64_t S1 = i_rr64(e, 14) ^ i_rr64(e, 18) ^ i_rr64(e, 41);
uint64_t ch = (e & f) ^ ((~e) & g);
uint64_t temp1 = h + S1 + ch + k[i] + W[i];
uint64_t S0 = i_rr64(a, 28) ^ i_rr64(a, 34) ^ i_rr64(a, 39);
uint64_t maj = (a & b) ^ (a & c) ^ (b & c);
uint64_t temp2 = S0 + maj;
h = g;
g = f;
f = e;
e = d + temp1;
d = c;
c = b;
b = a;
a = temp1 + temp2;
}
h0 += a;
h1 += b;
h2 += c;
h3 += d;
h4 += e;
h5 += f;
h6 += g;
h7 += h;
}
out_stream[0] = h0;
out_stream[1] = h1;
out_stream[2] = h2;
out_stream[3] = h3;
out_stream[4] = h4;
out_stream[5] = h5;
out_stream[6] = h6;
out_stream[7] = h7;
free(by);
return;
}
struct iv sha_iv_gen(int i){
struct iv oh = {.h0 = sha512_iv.h0 ^ 0xa5a5a5a5a5a5a5a5, .h1 = sha512_iv.h1 ^ 0xa5a5a5a5a5a5a5a5, .h2 = sha512_iv.h2 ^ 0xa5a5a5a5a5a5a5a5,
.h3 = sha512_iv.h3 ^ 0xa5a5a5a5a5a5a5a5, .h4 = sha512_iv.h4 ^ 0xa5a5a5a5a5a5a5a5, .h5 = sha512_iv.h5 ^ 0xa5a5a5a5a5a5a5a5,
.h6 = sha512_iv.h6 ^ 0xa5a5a5a5a5a5a5a5, .h7 = sha512_iv.h7 ^ 0xa5a5a5a5a5a5a5a5};
uint64_t nh[8] = {0};
uint8_t in[12];
sprintf((char*)in, "SHA-512/%i",i);
sha512_gen(nh, in, oh);
return (struct iv){.h0 = nh[0], .h1 = nh[1], .h2 = nh[2], .h3 = nh[3], .h4 = nh[4], .h5 = nh[5], .h6 = nh[6], .h7 = nh[7]};
}
void sha2_512_t(uint8_t* out, uint8_t* in, int t){
if(t%8!=0) return;
uint64_t out_stream[8] = {0};
sha512_gen(out_stream, in, sha_iv_gen(t));
for(int i = 0; i != 8; i++) sprintf((char*)out, "%s%016lx", out, out_stream[i]);
out[t/4] = '\0';
}
void sha2_512(uint8_t* out, uint8_t* in){
uint64_t out_stream[8] = {0};
sha512_gen(out_stream, in, sha512_iv);
for(int i = 0; i != 8; i++) sprintf((char*)out, "%s%016lx", out, out_stream[i]);
}
void sha2_384(uint8_t* out, uint8_t* in){
uint64_t out_stream[8] = {0};
sha512_gen(out_stream, in, sha384_iv);
for(int i = 0; i != 6; i++) sprintf((char*)out, "%s%016lx", out, out_stream[i]);
}
int l_sha512(lua_State* L){
size_t len = 0;
uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);
char digest[512] = {0};
sha2_512((uint8_t*)digest, a);
lua_pushstring(L, digest);
return 1;
}
int l_sha384(lua_State* L){
size_t len = 0;
uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);
char digest[384] = {0};
sha2_384((uint8_t*)digest, a);
lua_pushstring(L, digest);
return 1;
}
int l_sha512_t(lua_State* L){
size_t len = 0;
uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);
uint64_t t = luaL_checkinteger(L, 2);
char digest[512] = {0};
sha2_512_t((uint8_t*)digest, a, t);
lua_pushstring(L, digest);
return 1;
}
|
