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
|
/*
* Copyright © 2021 Keith Packard.
* All Rights Reserved. See the file COPYING in this directory
* for licensing information.
*/
autoload ChaCha;
void
dump_state(&int[16] state)
{
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++)
printf(" %08x", state[i*4+j]);
printf("\n");
}
}
void
dump_bytes(&int[] bytes)
{
for (int i = 0; i < dim(bytes); i++) {
if (i > 0 && (i % 16) == 0)
printf("\n");
printf(" %02x", bytes[i]);
}
printf("\n");
}
/*
* ChaCha quarter round test
*/
int[16] test_qr = { 0x11111111, 0x01020304, 0x9b8d6f43, 0x01234567, 0 ... };
ChaCha::qr(&test_qr, 0, 1, 2, 3);
int[16] test_qr_expect = { 0xea2a92f4, 0xcb1cf8ce, 0x4581472e, 0x5881c4bb, 0 ... };
assert(test_qr == test_qr_expect, "single QR failure test 1 %v != %v\n", test_qr_expect, test_qr);
/*
* ChaCha quarter round test 2
*/
int[16] test_qr2 = {
0x879531e0, 0xc5ecf37d, 0x516461b1, 0xc9a62f8a,
0x44c20ef3, 0x3390af7f, 0xd9fc690b, 0x2a5f714c,
0x53372767, 0xb00a5631, 0x974c541a, 0x359e9963,
0x5c971061, 0x3d631689, 0x2098d9d6, 0x91dbd320,
};
ChaCha::qr(&test_qr2, 2, 7, 8, 13);
int[16] test_qr2_expect = {
0x879531e0, 0xc5ecf37d, 0xbdb886dc, 0xc9a62f8a,
0x44c20ef3, 0x3390af7f, 0xd9fc690b, 0xcfacafd2,
0xe46bea80, 0xb00a5631, 0x974c541a, 0x359e9963,
0x5c971061, 0xccc07c79, 0x2098d9d6, 0x91dbd320,
};
assert(test_qr == test_qr_expect, "single QR failure test 2 %v != %v\n", test_qr_expect, test_qr);
int[32] test_key = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
};
int[12] test_nonce = {
0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00
};
int[16] test_state = ChaCha::state(&test_key, 1, &test_nonce);
int[16] test_state_expect = {
0x61707865, 0x3320646e, 0x79622d32, 0x6b206574,
0x03020100, 0x07060504, 0x0b0a0908, 0x0f0e0d0c,
0x13121110, 0x17161514, 0x1b1a1918, 0x1f1e1d1c,
0x00000001, 0x09000000, 0x4a000000, 0x00000000,
};
assert(test_state == test_state_expect, "state setup test failure %v != %v\n", test_state, test_state_expect);
int[16] test_cha;
ChaCha::block(&test_cha, &test_state);
int[16] test_cha_expect = {
0xe4e7f110, 0x15593bd1, 0x1fdd0f50, 0xc47120a3,
0xc7f4d1c7, 0x0368c033, 0x9aaa2204, 0x4e6cd4c3,
0x466482d2, 0x09aa9f07, 0x05d7c214, 0xa2028bd9,
0xd19c12b5, 0xb94e16de, 0xe883d0cb, 0x4e3c50a2,
};
assert(test_cha == test_cha_expect, "cha block test failure %v != %v\n", test_cha, test_cha_expect);
string plaintext = "Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it.";
int[String::length(plaintext)] plainbytes = {[i] = plaintext[i] };
int[dim(plainbytes)] cypherbytes;
int[32] encrypt_key = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
};
int[12] encrypt_nonce = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00
};
int[16] encrypt_state = ChaCha::state(&encrypt_key, 1, &encrypt_nonce);
int[16] encrypt_state_expect = {
0x61707865, 0x3320646e, 0x79622d32, 0x6b206574,
0x03020100, 0x07060504, 0x0b0a0908, 0x0f0e0d0c,
0x13121110, 0x17161514, 0x1b1a1918, 0x1f1e1d1c,
0x00000001, 0x00000000, 0x4a000000, 0x00000000,
};
assert(encrypt_state == encrypt_state_expect, "encrypt setup test failure %v != %v\n", encrypt_state, encrypt_state_expect);
ChaCha::encrypt(&encrypt_state, &plainbytes, &cypherbytes);
int[] cypherbytes_expect = {
0x6e, 0x2e, 0x35, 0x9a, 0x25, 0x68, 0xf9, 0x80, 0x41, 0xba, 0x07, 0x28, 0xdd, 0x0d, 0x69, 0x81,
0xe9, 0x7e, 0x7a, 0xec, 0x1d, 0x43, 0x60, 0xc2, 0x0a, 0x27, 0xaf, 0xcc, 0xfd, 0x9f, 0xae, 0x0b,
0xf9, 0x1b, 0x65, 0xc5, 0x52, 0x47, 0x33, 0xab, 0x8f, 0x59, 0x3d, 0xab, 0xcd, 0x62, 0xb3, 0x57,
0x16, 0x39, 0xd6, 0x24, 0xe6, 0x51, 0x52, 0xab, 0x8f, 0x53, 0x0c, 0x35, 0x9f, 0x08, 0x61, 0xd8,
0x07, 0xca, 0x0d, 0xbf, 0x50, 0x0d, 0x6a, 0x61, 0x56, 0xa3, 0x8e, 0x08, 0x8a, 0x22, 0xb6, 0x5e,
0x52, 0xbc, 0x51, 0x4d, 0x16, 0xcc, 0xf8, 0x06, 0x81, 0x8c, 0xe9, 0x1a, 0xb7, 0x79, 0x37, 0x36,
0x5a, 0xf9, 0x0b, 0xbf, 0x74, 0xa3, 0x5b, 0xe6, 0xb4, 0x0b, 0x8e, 0xed, 0xf2, 0x78, 0x5e, 0x42,
0x87, 0x4d,
};
assert(cypherbytes == cypherbytes_expect, "encrypt failure %v != %v\n", cypherbytes, cypherbytes_expect);
int[dim(plainbytes)] recoverbytes;
ChaCha::encrypt(&encrypt_state, &cypherbytes, &recoverbytes);
string recovertext = String::new(recoverbytes);
printf("%s\n", recovertext);
assert(recovertext == plaintext, "decrypt failure %v != %v\n", recovertext, plaintext);
|
