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
|
/*
* Copyright (c) 2026 Egor Tensin <egor@tensin.name>
* 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 <emmintrin.h>
#include <stdio.h>
#include <string.h>
#include <tmmintrin.h>
static AES_Block reverse_byte_order(AES_Block block) {
return _mm_shuffle_epi8(block, aes_make_block(0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f));
}
AES_Block aes_inc_block(AES_Block x) {
x = reverse_byte_order(x);
x = _mm_add_epi32(x, aes_make_block(0, 0, 0, 1));
x = reverse_byte_order(x);
return x;
}
AES_StatusCode aes_format_block(
AES_BlockString* str,
const AES_Block* block,
AES_ErrorDetails* err_details
) {
if (str == NULL)
return aes_error_null_argument(err_details, "str");
if (block == NULL)
return aes_error_null_argument(err_details, "block");
char* cursor = aes_format_block_hex(str->str, *block);
*cursor = '\0';
return AES_SUCCESS;
}
AES_StatusCode aes_format_block_as_matrix(
AES_BlockMatrixString* str,
const AES_Block* block,
AES_ErrorDetails* err_details
) {
if (str == NULL)
return aes_error_null_argument(err_details, "str");
if (block == NULL)
return aes_error_null_argument(err_details, "block");
char* cursor = str->str;
AES_ALIGN(unsigned char, 16) bytes[4][4];
aes_store_block_aligned(bytes, *block);
for (int i = 0; i < 4; ++i, cursor += 3) {
for (int j = 0; j < 3; ++j, cursor += 3)
sprintf(cursor, "%02x ", bytes[j][i]);
sprintf(cursor, "%02x\n", bytes[3][i]);
}
*cursor = '\0';
return AES_SUCCESS;
}
AES_StatusCode aes_parse_block(AES_Block* 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[16];
AES_StatusCode status = aes_parse_hex_string(bytes, src, sizeof(bytes), err_details);
if (aes_is_error(status))
return status;
*dest = aes_load_block_aligned(bytes);
return status;
}
|
