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_ctr_class
*
32 br_aes_x86ni_ctr_get_vtable(void)
34 return br_aes_x86ni_supported() ? &br_aes_x86ni_ctr_vtable
: NULL
;
37 /* see bearssl_block.h */
39 br_aes_x86ni_ctr_init(br_aes_x86ni_ctr_keys
*ctx
,
40 const void *key
, size_t len
)
42 ctx
->vtable
= &br_aes_x86ni_ctr_vtable
;
43 ctx
->num_rounds
= br_aes_x86ni_keysched_enc(ctx
->skey
.skni
, key
, len
);
48 /* see bearssl_block.h */
49 BR_TARGET("sse2,sse4.1,aes")
51 br_aes_x86ni_ctr_run(const br_aes_x86ni_ctr_keys
*ctx
,
52 const void *iv
, uint32_t cc
, void *data
, size_t len
)
55 unsigned char ivbuf
[16];
62 memcpy(ivbuf
, iv
, 12);
63 num_rounds
= ctx
->num_rounds
;
64 for (u
= 0; u
<= num_rounds
; u
++) {
65 sk
[u
] = _mm_loadu_si128((void *)(ctx
->skey
.skni
+ (u
<< 4)));
67 ivx
= _mm_loadu_si128((void *)ivbuf
);
69 __m128i x0
, x1
, x2
, x3
;
71 x0
= _mm_insert_epi32(ivx
, br_bswap32(cc
+ 0), 3);
72 x1
= _mm_insert_epi32(ivx
, br_bswap32(cc
+ 1), 3);
73 x2
= _mm_insert_epi32(ivx
, br_bswap32(cc
+ 2), 3);
74 x3
= _mm_insert_epi32(ivx
, br_bswap32(cc
+ 3), 3);
75 x0
= _mm_xor_si128(x0
, sk
[0]);
76 x1
= _mm_xor_si128(x1
, sk
[0]);
77 x2
= _mm_xor_si128(x2
, sk
[0]);
78 x3
= _mm_xor_si128(x3
, sk
[0]);
79 x0
= _mm_aesenc_si128(x0
, sk
[1]);
80 x1
= _mm_aesenc_si128(x1
, sk
[1]);
81 x2
= _mm_aesenc_si128(x2
, sk
[1]);
82 x3
= _mm_aesenc_si128(x3
, sk
[1]);
83 x0
= _mm_aesenc_si128(x0
, sk
[2]);
84 x1
= _mm_aesenc_si128(x1
, sk
[2]);
85 x2
= _mm_aesenc_si128(x2
, sk
[2]);
86 x3
= _mm_aesenc_si128(x3
, sk
[2]);
87 x0
= _mm_aesenc_si128(x0
, sk
[3]);
88 x1
= _mm_aesenc_si128(x1
, sk
[3]);
89 x2
= _mm_aesenc_si128(x2
, sk
[3]);
90 x3
= _mm_aesenc_si128(x3
, sk
[3]);
91 x0
= _mm_aesenc_si128(x0
, sk
[4]);
92 x1
= _mm_aesenc_si128(x1
, sk
[4]);
93 x2
= _mm_aesenc_si128(x2
, sk
[4]);
94 x3
= _mm_aesenc_si128(x3
, sk
[4]);
95 x0
= _mm_aesenc_si128(x0
, sk
[5]);
96 x1
= _mm_aesenc_si128(x1
, sk
[5]);
97 x2
= _mm_aesenc_si128(x2
, sk
[5]);
98 x3
= _mm_aesenc_si128(x3
, sk
[5]);
99 x0
= _mm_aesenc_si128(x0
, sk
[6]);
100 x1
= _mm_aesenc_si128(x1
, sk
[6]);
101 x2
= _mm_aesenc_si128(x2
, sk
[6]);
102 x3
= _mm_aesenc_si128(x3
, sk
[6]);
103 x0
= _mm_aesenc_si128(x0
, sk
[7]);
104 x1
= _mm_aesenc_si128(x1
, sk
[7]);
105 x2
= _mm_aesenc_si128(x2
, sk
[7]);
106 x3
= _mm_aesenc_si128(x3
, sk
[7]);
107 x0
= _mm_aesenc_si128(x0
, sk
[8]);
108 x1
= _mm_aesenc_si128(x1
, sk
[8]);
109 x2
= _mm_aesenc_si128(x2
, sk
[8]);
110 x3
= _mm_aesenc_si128(x3
, sk
[8]);
111 x0
= _mm_aesenc_si128(x0
, sk
[9]);
112 x1
= _mm_aesenc_si128(x1
, sk
[9]);
113 x2
= _mm_aesenc_si128(x2
, sk
[9]);
114 x3
= _mm_aesenc_si128(x3
, sk
[9]);
115 if (num_rounds
== 10) {
116 x0
= _mm_aesenclast_si128(x0
, sk
[10]);
117 x1
= _mm_aesenclast_si128(x1
, sk
[10]);
118 x2
= _mm_aesenclast_si128(x2
, sk
[10]);
119 x3
= _mm_aesenclast_si128(x3
, sk
[10]);
120 } else if (num_rounds
== 12) {
121 x0
= _mm_aesenc_si128(x0
, sk
[10]);
122 x1
= _mm_aesenc_si128(x1
, sk
[10]);
123 x2
= _mm_aesenc_si128(x2
, sk
[10]);
124 x3
= _mm_aesenc_si128(x3
, sk
[10]);
125 x0
= _mm_aesenc_si128(x0
, sk
[11]);
126 x1
= _mm_aesenc_si128(x1
, sk
[11]);
127 x2
= _mm_aesenc_si128(x2
, sk
[11]);
128 x3
= _mm_aesenc_si128(x3
, sk
[11]);
129 x0
= _mm_aesenclast_si128(x0
, sk
[12]);
130 x1
= _mm_aesenclast_si128(x1
, sk
[12]);
131 x2
= _mm_aesenclast_si128(x2
, sk
[12]);
132 x3
= _mm_aesenclast_si128(x3
, sk
[12]);
134 x0
= _mm_aesenc_si128(x0
, sk
[10]);
135 x1
= _mm_aesenc_si128(x1
, sk
[10]);
136 x2
= _mm_aesenc_si128(x2
, sk
[10]);
137 x3
= _mm_aesenc_si128(x3
, sk
[10]);
138 x0
= _mm_aesenc_si128(x0
, sk
[11]);
139 x1
= _mm_aesenc_si128(x1
, sk
[11]);
140 x2
= _mm_aesenc_si128(x2
, sk
[11]);
141 x3
= _mm_aesenc_si128(x3
, sk
[11]);
142 x0
= _mm_aesenc_si128(x0
, sk
[12]);
143 x1
= _mm_aesenc_si128(x1
, sk
[12]);
144 x2
= _mm_aesenc_si128(x2
, sk
[12]);
145 x3
= _mm_aesenc_si128(x3
, sk
[12]);
146 x0
= _mm_aesenc_si128(x0
, sk
[13]);
147 x1
= _mm_aesenc_si128(x1
, sk
[13]);
148 x2
= _mm_aesenc_si128(x2
, sk
[13]);
149 x3
= _mm_aesenc_si128(x3
, sk
[13]);
150 x0
= _mm_aesenclast_si128(x0
, sk
[14]);
151 x1
= _mm_aesenclast_si128(x1
, sk
[14]);
152 x2
= _mm_aesenclast_si128(x2
, sk
[14]);
153 x3
= _mm_aesenclast_si128(x3
, sk
[14]);
156 x0
= _mm_xor_si128(x0
,
157 _mm_loadu_si128((void *)(buf
+ 0)));
158 x1
= _mm_xor_si128(x1
,
159 _mm_loadu_si128((void *)(buf
+ 16)));
160 x2
= _mm_xor_si128(x2
,
161 _mm_loadu_si128((void *)(buf
+ 32)));
162 x3
= _mm_xor_si128(x3
,
163 _mm_loadu_si128((void *)(buf
+ 48)));
164 _mm_storeu_si128((void *)(buf
+ 0), x0
);
165 _mm_storeu_si128((void *)(buf
+ 16), x1
);
166 _mm_storeu_si128((void *)(buf
+ 32), x2
);
167 _mm_storeu_si128((void *)(buf
+ 48), x3
);
172 unsigned char tmp
[64];
174 _mm_storeu_si128((void *)(tmp
+ 0), x0
);
175 _mm_storeu_si128((void *)(tmp
+ 16), x1
);
176 _mm_storeu_si128((void *)(tmp
+ 32), x2
);
177 _mm_storeu_si128((void *)(tmp
+ 48), x3
);
178 for (u
= 0; u
< len
; u
++) {
181 cc
+= (uint32_t)len
>> 4;
190 /* see bearssl_block.h */
191 const br_block_ctr_class br_aes_x86ni_ctr_vtable
= {
192 sizeof(br_aes_x86ni_ctr_keys
),
195 (void (*)(const br_block_ctr_class
**, const void *, size_t))
196 &br_aes_x86ni_ctr_init
,
197 (uint32_t (*)(const br_block_ctr_class
*const *,
198 const void *, uint32_t, void *, size_t))
199 &br_aes_x86ni_ctr_run
204 /* see bearssl_block.h */
205 const br_block_ctr_class
*
206 br_aes_x86ni_ctr_get_vtable(void)