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_cbcenc_init(br_aes_x86ni_cbcenc_keys
*ctx
,
43 const void *key
, size_t len
)
45 ctx
->vtable
= &br_aes_x86ni_cbcenc_vtable
;
46 ctx
->num_rounds
= br_aes_x86ni_keysched_enc(ctx
->skey
.skni
, key
, len
);
49 /* see bearssl_block.h */
52 br_aes_x86ni_cbcenc_run(const br_aes_x86ni_cbcenc_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)));
69 x
= _mm_xor_si128(_mm_loadu_si128((void *)buf
), ivx
);
70 x
= _mm_xor_si128(x
, sk
[0]);
71 x
= _mm_aesenc_si128(x
, sk
[1]);
72 x
= _mm_aesenc_si128(x
, sk
[2]);
73 x
= _mm_aesenc_si128(x
, sk
[3]);
74 x
= _mm_aesenc_si128(x
, sk
[4]);
75 x
= _mm_aesenc_si128(x
, sk
[5]);
76 x
= _mm_aesenc_si128(x
, sk
[6]);
77 x
= _mm_aesenc_si128(x
, sk
[7]);
78 x
= _mm_aesenc_si128(x
, sk
[8]);
79 x
= _mm_aesenc_si128(x
, sk
[9]);
80 if (num_rounds
== 10) {
81 x
= _mm_aesenclast_si128(x
, sk
[10]);
82 } else if (num_rounds
== 12) {
83 x
= _mm_aesenc_si128(x
, sk
[10]);
84 x
= _mm_aesenc_si128(x
, sk
[11]);
85 x
= _mm_aesenclast_si128(x
, sk
[12]);
87 x
= _mm_aesenc_si128(x
, sk
[10]);
88 x
= _mm_aesenc_si128(x
, sk
[11]);
89 x
= _mm_aesenc_si128(x
, sk
[12]);
90 x
= _mm_aesenc_si128(x
, sk
[13]);
91 x
= _mm_aesenclast_si128(x
, sk
[14]);
94 _mm_storeu_si128((void *)buf
, x
);
98 _mm_storeu_si128(iv
, ivx
);
101 /* see bearssl_block.h */
102 const br_block_cbcenc_class br_aes_x86ni_cbcenc_vtable
= {
103 sizeof(br_aes_x86ni_cbcenc_keys
),
106 (void (*)(const br_block_cbcenc_class
**, const void *, size_t))
107 &br_aes_x86ni_cbcenc_init
,
108 (void (*)(const br_block_cbcenc_class
*const *, void *, void *, size_t))
109 &br_aes_x86ni_cbcenc_run
112 /* see bearssl_block.h */
113 const br_block_cbcenc_class
*
114 br_aes_x86ni_cbcenc_get_vtable(void)
116 return br_aes_x86ni_supported() ? &br_aes_x86ni_cbcenc_vtable
: NULL
;
121 /* see bearssl_block.h */
122 const br_block_cbcenc_class
*
123 br_aes_x86ni_cbcenc_get_vtable(void)