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
|
/**
* \file
* \author Egor Tensin <Egor.Tensin@gmail.com>
* \date 2015
* \copyright This file is licensed under the terms of the MIT License.
* See LICENSE.txt for details.
*/
#include <aes/all.h>
#include <emmintrin.h>
#include <wmmintrin.h>
AES_AES_Block __fastcall aes_AES192_encrypt_block_(
AES_AES_Block plaintext,
const AES_AES192_RoundKeys* encryption_keys)
{
plaintext = _mm_xor_si128(plaintext, encryption_keys->keys[0]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[1]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[2]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[3]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[4]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[5]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[6]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[7]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[8]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[9]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[10]);
plaintext = _mm_aesenc_si128(plaintext, encryption_keys->keys[11]);
return _mm_aesenclast_si128(plaintext, encryption_keys->keys[12]);
}
AES_AES_Block __fastcall aes_AES192_decrypt_block_(
AES_AES_Block ciphertext,
const AES_AES192_RoundKeys* decryption_keys)
{
ciphertext = _mm_xor_si128(ciphertext, decryption_keys->keys[0]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[1]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[2]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[3]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[4]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[5]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[6]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[7]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[8]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[9]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[10]);
ciphertext = _mm_aesdec_si128(ciphertext, decryption_keys->keys[11]);
return _mm_aesdeclast_si128(ciphertext, decryption_keys->keys[12]);
}
static void __fastcall aes_aes192_expand_key_assist(
AES_AES_Block* prev_lo,
AES_AES_Block* prev_hi,
AES_AES_Block hwgen)
{
AES_AES_Block tmp = *prev_lo;
tmp = _mm_slli_si128(tmp, 4);
*prev_lo = _mm_xor_si128(*prev_lo, tmp);
tmp = _mm_slli_si128(tmp, 4);
*prev_lo = _mm_xor_si128(*prev_lo, tmp);
tmp = _mm_slli_si128(tmp, 4);
*prev_lo = _mm_xor_si128(*prev_lo, tmp);
hwgen = _mm_shuffle_epi32(hwgen, 0x55);
*prev_lo = _mm_xor_si128(*prev_lo, hwgen);
tmp = _mm_shuffle_epi32(*prev_hi, 0xf3);
*prev_hi = _mm_xor_si128(*prev_hi, tmp);
tmp = _mm_shuffle_epi32(*prev_lo, 0xff);
tmp = _mm_srli_si128(tmp, 8);
*prev_hi = _mm_xor_si128(*prev_hi, tmp);
}
void __fastcall aes_AES192_expand_key_(
AES_AES_Block key_lo,
AES_AES_Block key_hi,
AES_AES192_RoundKeys* encryption_keys)
{
encryption_keys->keys[0] = key_lo;
encryption_keys->keys[1] = key_hi;
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x01));
encryption_keys->keys[1] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(encryption_keys->keys[1]), _mm_castsi128_pd(key_lo), 0));
encryption_keys->keys[2] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x02));
encryption_keys->keys[3] = key_lo;
encryption_keys->keys[4] = key_hi;
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x04));
encryption_keys->keys[4] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(encryption_keys->keys[4]), _mm_castsi128_pd(key_lo), 0));
encryption_keys->keys[5] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x08));
encryption_keys->keys[6] = key_lo;
encryption_keys->keys[7] = key_hi;
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x10));
encryption_keys->keys[7] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(encryption_keys->keys[7]), _mm_castsi128_pd(key_lo), 0));
encryption_keys->keys[8] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x20));
encryption_keys->keys[9] = key_lo;
encryption_keys->keys[10] = key_hi;
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x40));
encryption_keys->keys[10] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(encryption_keys->keys[10]), _mm_castsi128_pd(key_lo), 0));
encryption_keys->keys[11] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
aes_aes192_expand_key_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x80));
encryption_keys->keys[12] = key_lo;
}
void __fastcall aes_AES192_derive_decryption_keys_(
const AES_AES192_RoundKeys* encryption_keys,
AES_AES192_RoundKeys* decryption_keys)
{
decryption_keys->keys[0] = encryption_keys->keys[12];
decryption_keys->keys[1] = _mm_aesimc_si128(encryption_keys->keys[11]);
decryption_keys->keys[2] = _mm_aesimc_si128(encryption_keys->keys[10]);
decryption_keys->keys[3] = _mm_aesimc_si128(encryption_keys->keys[9]);
decryption_keys->keys[4] = _mm_aesimc_si128(encryption_keys->keys[8]);
decryption_keys->keys[5] = _mm_aesimc_si128(encryption_keys->keys[7]);
decryption_keys->keys[6] = _mm_aesimc_si128(encryption_keys->keys[6]);
decryption_keys->keys[7] = _mm_aesimc_si128(encryption_keys->keys[5]);
decryption_keys->keys[8] = _mm_aesimc_si128(encryption_keys->keys[4]);
decryption_keys->keys[9] = _mm_aesimc_si128(encryption_keys->keys[3]);
decryption_keys->keys[10] = _mm_aesimc_si128(encryption_keys->keys[2]);
decryption_keys->keys[11] = _mm_aesimc_si128(encryption_keys->keys[1]);
decryption_keys->keys[12] = encryption_keys->keys[0];
}
|
