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
25 #define BR_ENABLE_INTRINSICS 1
30 /* see bearssl_block.h */
31 const br_block_cbcdec_class
*
32 br_aes_x86ni_cbcdec_get_vtable(void)
34 return br_aes_x86ni_supported() ? &br_aes_x86ni_cbcdec_vtable
: NULL
;
37 /* see bearssl_block.h */
39 br_aes_x86ni_cbcdec_init(br_aes_x86ni_cbcdec_keys
*ctx
,
40 const void *key
, size_t len
)
42 ctx
->vtable
= &br_aes_x86ni_cbcdec_vtable
;
43 ctx
->num_rounds
= br_aes_x86ni_keysched_dec(ctx
->skey
.skni
, key
, len
);
48 /* see bearssl_block.h */
51 br_aes_x86ni_cbcdec_run(const br_aes_x86ni_cbcdec_keys
*ctx
,
52 void *iv
, void *data
, size_t len
)
60 ivx
= _mm_loadu_si128(iv
);
61 num_rounds
= ctx
->num_rounds
;
62 for (u
= 0; u
<= num_rounds
; u
++) {
63 sk
[u
] = _mm_loadu_si128((void *)(ctx
->skey
.skni
+ (u
<< 4)));
66 __m128i x0
, x1
, x2
, x3
, e0
, e1
, e2
, e3
;
68 x0
= _mm_loadu_si128((void *)(buf
+ 0));
70 x1
= _mm_loadu_si128((void *)(buf
+ 16));
71 x2
= _mm_loadu_si128((void *)(buf
+ 32));
72 x3
= _mm_loadu_si128((void *)(buf
+ 48));
74 x0
= _mm_loadu_si128((void *)(buf
+ 0));
76 x1
= _mm_loadu_si128((void *)(buf
+ 16));
95 x0
= _mm_xor_si128(x0
, sk
[0]);
96 x1
= _mm_xor_si128(x1
, sk
[0]);
97 x2
= _mm_xor_si128(x2
, sk
[0]);
98 x3
= _mm_xor_si128(x3
, sk
[0]);
99 x0
= _mm_aesdec_si128(x0
, sk
[1]);
100 x1
= _mm_aesdec_si128(x1
, sk
[1]);
101 x2
= _mm_aesdec_si128(x2
, sk
[1]);
102 x3
= _mm_aesdec_si128(x3
, sk
[1]);
103 x0
= _mm_aesdec_si128(x0
, sk
[2]);
104 x1
= _mm_aesdec_si128(x1
, sk
[2]);
105 x2
= _mm_aesdec_si128(x2
, sk
[2]);
106 x3
= _mm_aesdec_si128(x3
, sk
[2]);
107 x0
= _mm_aesdec_si128(x0
, sk
[3]);
108 x1
= _mm_aesdec_si128(x1
, sk
[3]);
109 x2
= _mm_aesdec_si128(x2
, sk
[3]);
110 x3
= _mm_aesdec_si128(x3
, sk
[3]);
111 x0
= _mm_aesdec_si128(x0
, sk
[4]);
112 x1
= _mm_aesdec_si128(x1
, sk
[4]);
113 x2
= _mm_aesdec_si128(x2
, sk
[4]);
114 x3
= _mm_aesdec_si128(x3
, sk
[4]);
115 x0
= _mm_aesdec_si128(x0
, sk
[5]);
116 x1
= _mm_aesdec_si128(x1
, sk
[5]);
117 x2
= _mm_aesdec_si128(x2
, sk
[5]);
118 x3
= _mm_aesdec_si128(x3
, sk
[5]);
119 x0
= _mm_aesdec_si128(x0
, sk
[6]);
120 x1
= _mm_aesdec_si128(x1
, sk
[6]);
121 x2
= _mm_aesdec_si128(x2
, sk
[6]);
122 x3
= _mm_aesdec_si128(x3
, sk
[6]);
123 x0
= _mm_aesdec_si128(x0
, sk
[7]);
124 x1
= _mm_aesdec_si128(x1
, sk
[7]);
125 x2
= _mm_aesdec_si128(x2
, sk
[7]);
126 x3
= _mm_aesdec_si128(x3
, sk
[7]);
127 x0
= _mm_aesdec_si128(x0
, sk
[8]);
128 x1
= _mm_aesdec_si128(x1
, sk
[8]);
129 x2
= _mm_aesdec_si128(x2
, sk
[8]);
130 x3
= _mm_aesdec_si128(x3
, sk
[8]);
131 x0
= _mm_aesdec_si128(x0
, sk
[9]);
132 x1
= _mm_aesdec_si128(x1
, sk
[9]);
133 x2
= _mm_aesdec_si128(x2
, sk
[9]);
134 x3
= _mm_aesdec_si128(x3
, sk
[9]);
135 if (num_rounds
== 10) {
136 x0
= _mm_aesdeclast_si128(x0
, sk
[10]);
137 x1
= _mm_aesdeclast_si128(x1
, sk
[10]);
138 x2
= _mm_aesdeclast_si128(x2
, sk
[10]);
139 x3
= _mm_aesdeclast_si128(x3
, sk
[10]);
140 } else if (num_rounds
== 12) {
141 x0
= _mm_aesdec_si128(x0
, sk
[10]);
142 x1
= _mm_aesdec_si128(x1
, sk
[10]);
143 x2
= _mm_aesdec_si128(x2
, sk
[10]);
144 x3
= _mm_aesdec_si128(x3
, sk
[10]);
145 x0
= _mm_aesdec_si128(x0
, sk
[11]);
146 x1
= _mm_aesdec_si128(x1
, sk
[11]);
147 x2
= _mm_aesdec_si128(x2
, sk
[11]);
148 x3
= _mm_aesdec_si128(x3
, sk
[11]);
149 x0
= _mm_aesdeclast_si128(x0
, sk
[12]);
150 x1
= _mm_aesdeclast_si128(x1
, sk
[12]);
151 x2
= _mm_aesdeclast_si128(x2
, sk
[12]);
152 x3
= _mm_aesdeclast_si128(x3
, sk
[12]);
154 x0
= _mm_aesdec_si128(x0
, sk
[10]);
155 x1
= _mm_aesdec_si128(x1
, sk
[10]);
156 x2
= _mm_aesdec_si128(x2
, sk
[10]);
157 x3
= _mm_aesdec_si128(x3
, sk
[10]);
158 x0
= _mm_aesdec_si128(x0
, sk
[11]);
159 x1
= _mm_aesdec_si128(x1
, sk
[11]);
160 x2
= _mm_aesdec_si128(x2
, sk
[11]);
161 x3
= _mm_aesdec_si128(x3
, sk
[11]);
162 x0
= _mm_aesdec_si128(x0
, sk
[12]);
163 x1
= _mm_aesdec_si128(x1
, sk
[12]);
164 x2
= _mm_aesdec_si128(x2
, sk
[12]);
165 x3
= _mm_aesdec_si128(x3
, sk
[12]);
166 x0
= _mm_aesdec_si128(x0
, sk
[13]);
167 x1
= _mm_aesdec_si128(x1
, sk
[13]);
168 x2
= _mm_aesdec_si128(x2
, sk
[13]);
169 x3
= _mm_aesdec_si128(x3
, sk
[13]);
170 x0
= _mm_aesdeclast_si128(x0
, sk
[14]);
171 x1
= _mm_aesdeclast_si128(x1
, sk
[14]);
172 x2
= _mm_aesdeclast_si128(x2
, sk
[14]);
173 x3
= _mm_aesdeclast_si128(x3
, sk
[14]);
175 x0
= _mm_xor_si128(x0
, ivx
);
176 x1
= _mm_xor_si128(x1
, e0
);
177 x2
= _mm_xor_si128(x2
, e1
);
178 x3
= _mm_xor_si128(x3
, e2
);
180 _mm_storeu_si128((void *)(buf
+ 0), x0
);
182 _mm_storeu_si128((void *)(buf
+ 16), x1
);
183 _mm_storeu_si128((void *)(buf
+ 32), x2
);
184 _mm_storeu_si128((void *)(buf
+ 48), x3
);
189 _mm_storeu_si128((void *)(buf
+ 16), x1
);
192 (void *)(buf
+ 32), x2
);
198 _mm_storeu_si128(iv
, ivx
);
203 /* see bearssl_block.h */
204 const br_block_cbcdec_class br_aes_x86ni_cbcdec_vtable
= {
205 sizeof(br_aes_x86ni_cbcdec_keys
),
208 (void (*)(const br_block_cbcdec_class
**, const void *, size_t))
209 &br_aes_x86ni_cbcdec_init
,
210 (void (*)(const br_block_cbcdec_class
*const *, void *, void *, size_t))
211 &br_aes_x86ni_cbcdec_run
216 /* see bearssl_block.h */
217 const br_block_cbcdec_class
*
218 br_aes_x86ni_cbcdec_get_vtable(void)