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
|
/* test_chacha.c
*
* Copyright (C) 2006-2025 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#include <tests/unit.h>
#ifdef NO_INLINE
#include <wolfssl/wolfcrypt/misc.h>
#else
#define WOLFSSL_MISC_INCLUDED
#include <wolfcrypt/src/misc.c>
#endif
#include <wolfssl/wolfcrypt/chacha.h>
#include <wolfssl/wolfcrypt/types.h>
#include <tests/api/api.h>
#include <tests/api/test_chacha.h>
/*
* Testing wc_Chacha_SetKey() and wc_Chacha_SetIV()
*/
int test_wc_Chacha_SetKey(void)
{
EXPECT_DECLS;
#ifdef HAVE_CHACHA
ChaCha ctx;
const byte key[] = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01
};
word32 keySz = (word32)(sizeof(key)/sizeof(byte));
byte cipher[128];
XMEMSET(cipher, 0, sizeof(cipher));
ExpectIntEQ(wc_Chacha_SetKey(&ctx, key, keySz), 0);
/* Test bad args. */
ExpectIntEQ(wc_Chacha_SetKey(NULL, key, keySz),
WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(wc_Chacha_SetKey(&ctx, key, 18), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(wc_Chacha_SetIV(&ctx, cipher, 0), 0);
/* Test bad args. */
ExpectIntEQ(wc_Chacha_SetIV(NULL, cipher, 0),
WC_NO_ERR_TRACE(BAD_FUNC_ARG));
#endif
return EXPECT_RESULT();
} /* END test_wc_Chacha_SetKey */
/*
* Testing wc_Chacha_Process()
*/
int test_wc_Chacha_Process(void)
{
EXPECT_DECLS;
#ifdef HAVE_CHACHA
ChaCha enc, dec;
byte cipher[128];
byte plain[128];
const byte key[] =
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01
};
const char* input = "Everybody gets Friday off.";
word32 keySz = sizeof(key)/sizeof(byte);
unsigned long int inlen = XSTRLEN(input);
/* Initialize stack variables. */
XMEMSET(cipher, 0, 128);
XMEMSET(plain, 0, 128);
ExpectIntEQ(wc_Chacha_SetKey(&enc, key, keySz), 0);
ExpectIntEQ(wc_Chacha_SetKey(&dec, key, keySz), 0);
ExpectIntEQ(wc_Chacha_SetIV(&enc, cipher, 0), 0);
ExpectIntEQ(wc_Chacha_SetIV(&dec, cipher, 0), 0);
ExpectIntEQ(wc_Chacha_Process(&enc, cipher, (byte*)input, (word32)inlen),
0);
ExpectIntEQ(wc_Chacha_Process(&dec, plain, cipher, (word32)inlen), 0);
ExpectIntEQ(XMEMCMP(input, plain, inlen), 0);
#if !defined(USE_INTEL_CHACHA_SPEEDUP) && !defined(WOLFSSL_ARMASM)
/* test checking and using leftovers, currently just in C code */
ExpectIntEQ(wc_Chacha_SetIV(&enc, cipher, 0), 0);
ExpectIntEQ(wc_Chacha_SetIV(&dec, cipher, 0), 0);
ExpectIntEQ(wc_Chacha_Process(&enc, cipher, (byte*)input,
(word32)inlen - 2), 0);
ExpectIntEQ(wc_Chacha_Process(&enc, cipher + (inlen - 2),
(byte*)input + (inlen - 2), 2), 0);
ExpectIntEQ(wc_Chacha_Process(&dec, plain, (byte*)cipher,
(word32)inlen - 2), 0);
ExpectIntEQ(wc_Chacha_Process(&dec, cipher + (inlen - 2),
(byte*)input + (inlen - 2), 2), 0);
ExpectIntEQ(XMEMCMP(input, plain, inlen), 0);
/* check edge cases with counter increment */
{
/* expected results collected from wolfSSL 4.3.0 encrypted in one call*/
const byte expected[] = {
0x54,0xB1,0xE2,0xD4,0xA2,0x4D,0x52,0x5F,
0x42,0x04,0x89,0x7C,0x6E,0x2D,0xFC,0x2D,
0x10,0x25,0xB6,0x92,0x71,0xD5,0xC3,0x20,
0xE3,0x0E,0xEC,0xF4,0xD8,0x10,0x70,0x29,
0x2D,0x4C,0x2A,0x56,0x21,0xE1,0xC7,0x37,
0x0B,0x86,0xF5,0x02,0x8C,0xB8,0xB8,0x38,
0x41,0xFD,0xDF,0xD9,0xC3,0xE6,0xC8,0x88,
0x06,0x82,0xD4,0x80,0x6A,0x50,0x69,0xD5,
0xB9,0xB0,0x2F,0x44,0x36,0x5D,0xDA,0x5E,
0xDE,0xF6,0xF5,0xFC,0x44,0xDC,0x07,0x51,
0xA7,0x32,0x42,0xDB,0xCC,0xBD,0xE2,0xE5,
0x0B,0xB1,0x14,0xFF,0x12,0x80,0x16,0x43,
0xE7,0x40,0xD5,0xEA,0xC7,0x3F,0x69,0x07,
0x64,0xD4,0x86,0x6C,0xE2,0x1F,0x8F,0x6E,
0x35,0x41,0xE7,0xD3,0xB5,0x5D,0xD6,0xD4,
0x9F,0x00,0xA9,0xAE,0x3D,0x28,0xA5,0x37,
0x80,0x3D,0x11,0x25,0xE2,0xB6,0x99,0xD9,
0x9B,0x98,0xE9,0x37,0xB9,0xF8,0xA0,0x04,
0xDF,0x13,0x49,0x3F,0x19,0x6A,0x45,0x06,
0x21,0xB4,0xC7,0x3B,0x49,0x45,0xB4,0xC8,
0x03,0x5B,0x43,0x89,0xBD,0xB3,0x96,0x4B,
0x17,0x6F,0x85,0xC6,0xCF,0xA6,0x05,0x35,
0x1E,0x25,0x03,0xBB,0x55,0x0A,0xD5,0x54,
0x41,0xEA,0xEB,0x50,0x40,0x1B,0x43,0x19,
0x59,0x1B,0x0E,0x12,0x3E,0xA2,0x71,0xC3,
0x1A,0xA7,0x11,0x50,0x43,0x9D,0x56,0x3B,
0x63,0x2F,0x63,0xF1,0x8D,0xAE,0xF3,0x23,
0xFA,0x1E,0xD8,0x6A,0xE1,0xB2,0x4B,0xF3,
0xB9,0x13,0x7A,0x72,0x2B,0x6D,0xCC,0x41,
0x1C,0x69,0x7C,0xCD,0x43,0x6F,0xE4,0xE2,
0x38,0x99,0xFB,0xC3,0x38,0x92,0x62,0x35,
0xC0,0x1D,0x60,0xE4,0x4B,0xDD,0x0C,0x14
};
const byte iv2[] = {
0x9D,0xED,0xE7,0x0F,0xEC,0x81,0x51,0xD9,
0x77,0x39,0x71,0xA6,0x21,0xDF,0xB8,0x93
};
byte input2[256];
int i;
for (i = 0; i < 256; i++)
input2[i] = (byte)i;
ExpectIntEQ(wc_Chacha_SetIV(&enc, iv2, 0), 0);
ExpectIntEQ(wc_Chacha_Process(&enc, cipher, input2, 64), 0);
ExpectIntEQ(XMEMCMP(expected, cipher, 64), 0);
ExpectIntEQ(wc_Chacha_Process(&enc, cipher, input2 + 64, 128), 0);
ExpectIntEQ(XMEMCMP(expected + 64, cipher, 128), 0);
/* partial */
ExpectIntEQ(wc_Chacha_Process(&enc, cipher, input2 + 192, 32), 0);
ExpectIntEQ(XMEMCMP(expected + 192, cipher, 32), 0);
ExpectIntEQ(wc_Chacha_Process(&enc, cipher, input2 + 224, 32), 0);
ExpectIntEQ(XMEMCMP(expected + 224, cipher, 32), 0);
}
#endif
/* Test bad args. */
ExpectIntEQ(wc_Chacha_Process(NULL, cipher, (byte*)input, (word32)inlen),
WC_NO_ERR_TRACE(BAD_FUNC_ARG));
#endif
return EXPECT_RESULT();
} /* END test_wc_Chacha_Process */
|
