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
|
/*
* Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
* This file is part of the "AES tools" project.
* For details, see https://github.com/egor-tensin/aes-tools.
* Distributed under the MIT License.
*/
#include <aes/all.h>
#include <assert.h>
#include <stdio.h>
#include <string.h>
AES_StatusCode aes128_format_key(
AES128_KeyString* str,
const AES128_Key* key,
AES_ErrorDetails* err_details
) {
if (str == NULL)
return aes_error_null_argument(err_details, "str");
if (key == NULL)
return aes_error_null_argument(err_details, "key");
char* cursor = str->str;
AES_ALIGN(unsigned char, 16) bytes[16];
aes_store_block_aligned(bytes, key->key);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
*cursor = '\0';
return AES_SUCCESS;
}
AES_StatusCode aes192_format_key(
AES192_KeyString* str,
const AES192_Key* key,
AES_ErrorDetails* err_details
) {
if (str == NULL)
return aes_error_null_argument(err_details, "str");
if (key == NULL)
return aes_error_null_argument(err_details, "key");
char* cursor = str->str;
{
AES_ALIGN(unsigned char, 16) bytes[16];
aes_store_block_aligned(bytes, key->lo);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
{
AES_ALIGN(unsigned char, 16) bytes[16];
aes_store_block_aligned(bytes, key->hi);
for (int i = 0; i < 8; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
*cursor = '\0';
return AES_SUCCESS;
}
AES_StatusCode aes256_format_key(
AES256_KeyString* str,
const AES256_Key* key,
AES_ErrorDetails* err_details
) {
if (str == NULL)
return aes_error_null_argument(err_details, "str");
if (key == NULL)
return aes_error_null_argument(err_details, "key");
char* cursor = str->str;
{
AES_ALIGN(unsigned char, 16) bytes[16];
aes_store_block_aligned(bytes, key->lo);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
{
AES_ALIGN(unsigned char, 16) bytes[16];
aes_store_block_aligned(bytes, key->hi);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
*cursor = '\0';
return AES_SUCCESS;
}
AES_StatusCode aes128_parse_key(AES128_Key* dest, const char* src, AES_ErrorDetails* err_details) {
if (dest == NULL)
return aes_error_null_argument(err_details, "dest");
if (src == NULL)
return aes_error_null_argument(err_details, "src");
return aes_parse_block(&dest->key, src, err_details);
}
AES_StatusCode aes192_parse_key(AES192_Key* dest, const char* src, AES_ErrorDetails* err_details) {
if (dest == NULL)
return aes_error_null_argument(err_details, "dest");
if (src == NULL)
return aes_error_null_argument(err_details, "src");
AES_ALIGN(unsigned char, 16) bytes[32];
memset(bytes, 0x00, sizeof(bytes));
AES_StatusCode status = aes_parse_hex_string(bytes, src, 24, err_details);
if (aes_is_error(status))
return status;
dest->lo = aes_load_block_aligned(bytes);
dest->hi = aes_load_block_aligned(bytes + 16);
return status;
}
AES_StatusCode aes256_parse_key(AES256_Key* dest, const char* src, AES_ErrorDetails* err_details) {
if (dest == NULL)
return aes_error_null_argument(err_details, "dest");
if (src == NULL)
return aes_error_null_argument(err_details, "src");
AES_ALIGN(unsigned char, 16) bytes[32];
AES_StatusCode status = aes_parse_hex_string(bytes, src, sizeof(bytes), err_details);
if (aes_is_error(status))
return status;
dest->lo = aes_load_block_aligned(bytes);
dest->hi = aes_load_block_aligned(bytes + 16);
return status;
}
|
