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
|
/* AesOpt.c -- Intel's AES
2017-06-08 : Igor Pavlov : Public domain */
#include "Precomp.h"
#include "CpuArch.h"
#ifdef MY_CPU_X86_OR_AMD64
#if (_MSC_VER > 1500) || (_MSC_FULL_VER >= 150030729)
#define USE_INTEL_AES
#endif
#endif
#ifdef USE_INTEL_AES
#include <wmmintrin.h>
void MY_FAST_CALL AesCbc_Encode_Intel(__m128i *p, __m128i *data, size_t numBlocks)
{
__m128i m = *p;
for (; numBlocks != 0; numBlocks--, data++)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1) - 1;
const __m128i *w = p + 3;
m = _mm_xor_si128(m, *data);
m = _mm_xor_si128(m, p[2]);
do
{
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenc_si128(m, w[1]);
w += 2;
}
while (--numRounds2 != 0);
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenclast_si128(m, w[1]);
*data = m;
}
*p = m;
}
#define NUM_WAYS 3
#define AES_OP_W(op, n) { \
const __m128i t = w[n]; \
m0 = op(m0, t); \
m1 = op(m1, t); \
m2 = op(m2, t); \
}
#define AES_DEC(n) AES_OP_W(_mm_aesdec_si128, n)
#define AES_DEC_LAST(n) AES_OP_W(_mm_aesdeclast_si128, n)
#define AES_ENC(n) AES_OP_W(_mm_aesenc_si128, n)
#define AES_ENC_LAST(n) AES_OP_W(_mm_aesenclast_si128, n)
void MY_FAST_CALL AesCbc_Decode_Intel(__m128i *p, __m128i *data, size_t numBlocks)
{
__m128i iv = *p;
for (; numBlocks >= NUM_WAYS; numBlocks -= NUM_WAYS, data += NUM_WAYS)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1);
const __m128i *w = p + numRounds2 * 2;
__m128i m0, m1, m2;
{
const __m128i t = w[2];
m0 = _mm_xor_si128(t, data[0]);
m1 = _mm_xor_si128(t, data[1]);
m2 = _mm_xor_si128(t, data[2]);
}
numRounds2--;
do
{
AES_DEC(1)
AES_DEC(0)
w -= 2;
}
while (--numRounds2 != 0);
AES_DEC(1)
AES_DEC_LAST(0)
{
__m128i t;
t = _mm_xor_si128(m0, iv); iv = data[0]; data[0] = t;
t = _mm_xor_si128(m1, iv); iv = data[1]; data[1] = t;
t = _mm_xor_si128(m2, iv); iv = data[2]; data[2] = t;
}
}
for (; numBlocks != 0; numBlocks--, data++)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1);
const __m128i *w = p + numRounds2 * 2;
__m128i m = _mm_xor_si128(w[2], *data);
numRounds2--;
do
{
m = _mm_aesdec_si128(m, w[1]);
m = _mm_aesdec_si128(m, w[0]);
w -= 2;
}
while (--numRounds2 != 0);
m = _mm_aesdec_si128(m, w[1]);
m = _mm_aesdeclast_si128(m, w[0]);
m = _mm_xor_si128(m, iv);
iv = *data;
*data = m;
}
*p = iv;
}
void MY_FAST_CALL AesCtr_Code_Intel(__m128i *p, __m128i *data, size_t numBlocks)
{
__m128i ctr = *p;
__m128i one;
one.m128i_u64[0] = 1;
one.m128i_u64[1] = 0;
for (; numBlocks >= NUM_WAYS; numBlocks -= NUM_WAYS, data += NUM_WAYS)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1) - 1;
const __m128i *w = p;
__m128i m0, m1, m2;
{
const __m128i t = w[2];
ctr = _mm_add_epi64(ctr, one); m0 = _mm_xor_si128(ctr, t);
ctr = _mm_add_epi64(ctr, one); m1 = _mm_xor_si128(ctr, t);
ctr = _mm_add_epi64(ctr, one); m2 = _mm_xor_si128(ctr, t);
}
w += 3;
do
{
AES_ENC(0)
AES_ENC(1)
w += 2;
}
while (--numRounds2 != 0);
AES_ENC(0)
AES_ENC_LAST(1)
data[0] = _mm_xor_si128(data[0], m0);
data[1] = _mm_xor_si128(data[1], m1);
data[2] = _mm_xor_si128(data[2], m2);
}
for (; numBlocks != 0; numBlocks--, data++)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1) - 1;
const __m128i *w = p;
__m128i m;
ctr = _mm_add_epi64(ctr, one);
m = _mm_xor_si128(ctr, p[2]);
w += 3;
do
{
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenc_si128(m, w[1]);
w += 2;
}
while (--numRounds2 != 0);
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenclast_si128(m, w[1]);
*data = _mm_xor_si128(*data, m);
}
*p = ctr;
}
#else
void MY_FAST_CALL AesCbc_Encode(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCbc_Decode(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCtr_Code(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCbc_Encode_Intel(UInt32 *p, Byte *data, size_t numBlocks)
{
AesCbc_Encode(p, data, numBlocks);
}
void MY_FAST_CALL AesCbc_Decode_Intel(UInt32 *p, Byte *data, size_t numBlocks)
{
AesCbc_Decode(p, data, numBlocks);
}
void MY_FAST_CALL AesCtr_Code_Intel(UInt32 *p, Byte *data, size_t numBlocks)
{
AesCtr_Code(p, data, numBlocks);
}
#endif
|
