2 * Copyright (c) 2017 Thomas Pornin <pornin@bolet.org>
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 #if BR_AES_X86NI_GCC_OLD
31 #pragma GCC target("sse2,sse4.1,aes,pclmul")
33 #include <wmmintrin.h>
40 /* see bearssl_block.h */
42 br_aes_x86ni_cbcdec_init(br_aes_x86ni_cbcdec_keys
*ctx
,
43 const void *key
, size_t len
)
45 ctx
->vtable
= &br_aes_x86ni_cbcdec_vtable
;
46 ctx
->num_rounds
= br_aes_x86ni_keysched_dec(ctx
->skey
.skni
, key
, len
);
49 /* see bearssl_block.h */
52 br_aes_x86ni_cbcdec_run(const br_aes_x86ni_cbcdec_keys
*ctx
,
53 void *iv
, void *data
, size_t len
)
61 ivx
= _mm_loadu_si128(iv
);
62 num_rounds
= ctx
->num_rounds
;
63 for (u
= 0; u
<= num_rounds
; u
++) {
64 sk
[u
] = _mm_loadu_si128((void *)(ctx
->skey
.skni
+ (u
<< 4)));
67 __m128i x0
, x1
, x2
, x3
, e0
, e1
, e2
, e3
;
69 x0
= _mm_loadu_si128((void *)(buf
+ 0));
71 x1
= _mm_loadu_si128((void *)(buf
+ 16));
72 x2
= _mm_loadu_si128((void *)(buf
+ 32));
73 x3
= _mm_loadu_si128((void *)(buf
+ 48));
75 x0
= _mm_loadu_si128((void *)(buf
+ 0));
77 x1
= _mm_loadu_si128((void *)(buf
+ 16));
96 x0
= _mm_xor_si128(x0
, sk
[0]);
97 x1
= _mm_xor_si128(x1
, sk
[0]);
98 x2
= _mm_xor_si128(x2
, sk
[0]);
99 x3
= _mm_xor_si128(x3
, sk
[0]);
100 x0
= _mm_aesdec_si128(x0
, sk
[1]);
101 x1
= _mm_aesdec_si128(x1
, sk
[1]);
102 x2
= _mm_aesdec_si128(x2
, sk
[1]);
103 x3
= _mm_aesdec_si128(x3
, sk
[1]);
104 x0
= _mm_aesdec_si128(x0
, sk
[2]);
105 x1
= _mm_aesdec_si128(x1
, sk
[2]);
106 x2
= _mm_aesdec_si128(x2
, sk
[2]);
107 x3
= _mm_aesdec_si128(x3
, sk
[2]);
108 x0
= _mm_aesdec_si128(x0
, sk
[3]);
109 x1
= _mm_aesdec_si128(x1
, sk
[3]);
110 x2
= _mm_aesdec_si128(x2
, sk
[3]);
111 x3
= _mm_aesdec_si128(x3
, sk
[3]);
112 x0
= _mm_aesdec_si128(x0
, sk
[4]);
113 x1
= _mm_aesdec_si128(x1
, sk
[4]);
114 x2
= _mm_aesdec_si128(x2
, sk
[4]);
115 x3
= _mm_aesdec_si128(x3
, sk
[4]);
116 x0
= _mm_aesdec_si128(x0
, sk
[5]);
117 x1
= _mm_aesdec_si128(x1
, sk
[5]);
118 x2
= _mm_aesdec_si128(x2
, sk
[5]);
119 x3
= _mm_aesdec_si128(x3
, sk
[5]);
120 x0
= _mm_aesdec_si128(x0
, sk
[6]);
121 x1
= _mm_aesdec_si128(x1
, sk
[6]);
122 x2
= _mm_aesdec_si128(x2
, sk
[6]);
123 x3
= _mm_aesdec_si128(x3
, sk
[6]);
124 x0
= _mm_aesdec_si128(x0
, sk
[7]);
125 x1
= _mm_aesdec_si128(x1
, sk
[7]);
126 x2
= _mm_aesdec_si128(x2
, sk
[7]);
127 x3
= _mm_aesdec_si128(x3
, sk
[7]);
128 x0
= _mm_aesdec_si128(x0
, sk
[8]);
129 x1
= _mm_aesdec_si128(x1
, sk
[8]);
130 x2
= _mm_aesdec_si128(x2
, sk
[8]);
131 x3
= _mm_aesdec_si128(x3
, sk
[8]);
132 x0
= _mm_aesdec_si128(x0
, sk
[9]);
133 x1
= _mm_aesdec_si128(x1
, sk
[9]);
134 x2
= _mm_aesdec_si128(x2
, sk
[9]);
135 x3
= _mm_aesdec_si128(x3
, sk
[9]);
136 if (num_rounds
== 10) {
137 x0
= _mm_aesdeclast_si128(x0
, sk
[10]);
138 x1
= _mm_aesdeclast_si128(x1
, sk
[10]);
139 x2
= _mm_aesdeclast_si128(x2
, sk
[10]);
140 x3
= _mm_aesdeclast_si128(x3
, sk
[10]);
141 } else if (num_rounds
== 12) {
142 x0
= _mm_aesdec_si128(x0
, sk
[10]);
143 x1
= _mm_aesdec_si128(x1
, sk
[10]);
144 x2
= _mm_aesdec_si128(x2
, sk
[10]);
145 x3
= _mm_aesdec_si128(x3
, sk
[10]);
146 x0
= _mm_aesdec_si128(x0
, sk
[11]);
147 x1
= _mm_aesdec_si128(x1
, sk
[11]);
148 x2
= _mm_aesdec_si128(x2
, sk
[11]);
149 x3
= _mm_aesdec_si128(x3
, sk
[11]);
150 x0
= _mm_aesdeclast_si128(x0
, sk
[12]);
151 x1
= _mm_aesdeclast_si128(x1
, sk
[12]);
152 x2
= _mm_aesdeclast_si128(x2
, sk
[12]);
153 x3
= _mm_aesdeclast_si128(x3
, sk
[12]);
155 x0
= _mm_aesdec_si128(x0
, sk
[10]);
156 x1
= _mm_aesdec_si128(x1
, sk
[10]);
157 x2
= _mm_aesdec_si128(x2
, sk
[10]);
158 x3
= _mm_aesdec_si128(x3
, sk
[10]);
159 x0
= _mm_aesdec_si128(x0
, sk
[11]);
160 x1
= _mm_aesdec_si128(x1
, sk
[11]);
161 x2
= _mm_aesdec_si128(x2
, sk
[11]);
162 x3
= _mm_aesdec_si128(x3
, sk
[11]);
163 x0
= _mm_aesdec_si128(x0
, sk
[12]);
164 x1
= _mm_aesdec_si128(x1
, sk
[12]);
165 x2
= _mm_aesdec_si128(x2
, sk
[12]);
166 x3
= _mm_aesdec_si128(x3
, sk
[12]);
167 x0
= _mm_aesdec_si128(x0
, sk
[13]);
168 x1
= _mm_aesdec_si128(x1
, sk
[13]);
169 x2
= _mm_aesdec_si128(x2
, sk
[13]);
170 x3
= _mm_aesdec_si128(x3
, sk
[13]);
171 x0
= _mm_aesdeclast_si128(x0
, sk
[14]);
172 x1
= _mm_aesdeclast_si128(x1
, sk
[14]);
173 x2
= _mm_aesdeclast_si128(x2
, sk
[14]);
174 x3
= _mm_aesdeclast_si128(x3
, sk
[14]);
176 x0
= _mm_xor_si128(x0
, ivx
);
177 x1
= _mm_xor_si128(x1
, e0
);
178 x2
= _mm_xor_si128(x2
, e1
);
179 x3
= _mm_xor_si128(x3
, e2
);
181 _mm_storeu_si128((void *)(buf
+ 0), x0
);
183 _mm_storeu_si128((void *)(buf
+ 16), x1
);
184 _mm_storeu_si128((void *)(buf
+ 32), x2
);
185 _mm_storeu_si128((void *)(buf
+ 48), x3
);
190 _mm_storeu_si128((void *)(buf
+ 16), x1
);
193 (void *)(buf
+ 32), x2
);
199 _mm_storeu_si128(iv
, ivx
);
202 /* see bearssl_block.h */
203 const br_block_cbcdec_class br_aes_x86ni_cbcdec_vtable
= {
204 sizeof(br_aes_x86ni_cbcdec_keys
),
207 (void (*)(const br_block_cbcdec_class
**, const void *, size_t))
208 &br_aes_x86ni_cbcdec_init
,
209 (void (*)(const br_block_cbcdec_class
*const *, void *, void *, size_t))
210 &br_aes_x86ni_cbcdec_run
213 /* see bearssl_block.h */
214 const br_block_cbcdec_class
*
215 br_aes_x86ni_cbcdec_get_vtable(void)
217 return br_aes_x86ni_supported() ? &br_aes_x86ni_cbcdec_vtable
: NULL
;
222 /* see bearssl_block.h */
223 const br_block_cbcdec_class
*
224 br_aes_x86ni_cbcdec_get_vtable(void)