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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/* Copyright (c) 2017, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#ifndef OPENSSL_HEADER_AES_INTERNAL_H
#define OPENSSL_HEADER_AES_INTERNAL_H
#include <stdlib.h>
#include <CNIOBoringSSL_cpu.h>
#if defined(__cplusplus)
extern "C" {
#endif
#if !defined(OPENSSL_NO_ASM)
#if defined(OPENSSL_X86) || defined(OPENSSL_X86_64)
#define HWAES
#define HWAES_ECB
OPENSSL_INLINE int hwaes_capable(void) {
return (OPENSSL_ia32cap_get()[1] & (1 << (57 - 32))) != 0;
}
#define VPAES
#if defined(OPENSSL_X86_64)
#define VPAES_CTR32
#endif
#define VPAES_CBC
OPENSSL_INLINE int vpaes_capable(void) {
return (OPENSSL_ia32cap_get()[1] & (1 << (41 - 32))) != 0;
}
#elif defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)
#define HWAES
OPENSSL_INLINE int hwaes_capable(void) { return CRYPTO_is_ARMv8_AES_capable(); }
#if defined(OPENSSL_ARM)
#define BSAES
#define VPAES
#define VPAES_CTR32
OPENSSL_INLINE int bsaes_capable(void) { return CRYPTO_is_NEON_capable(); }
OPENSSL_INLINE int vpaes_capable(void) { return CRYPTO_is_NEON_capable(); }
#endif
#if defined(OPENSSL_AARCH64)
#define VPAES
#define VPAES_CBC
#define VPAES_CTR32
OPENSSL_INLINE int vpaes_capable(void) { return CRYPTO_is_NEON_capable(); }
#endif
#elif defined(OPENSSL_PPC64LE)
#define HWAES
OPENSSL_INLINE int hwaes_capable(void) {
return CRYPTO_is_PPC64LE_vcrypto_capable();
}
#endif
#endif // !NO_ASM
#if defined(HWAES)
int aes_hw_set_encrypt_key(const uint8_t *user_key, const int bits,
AES_KEY *key);
int aes_hw_set_decrypt_key(const uint8_t *user_key, const int bits,
AES_KEY *key);
void aes_hw_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
void aes_hw_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length,
const AES_KEY *key, uint8_t *ivec, const int enc);
void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len,
const AES_KEY *key, const uint8_t ivec[16]);
#else
// If HWAES isn't defined then we provide dummy functions for each of the hwaes
// functions.
OPENSSL_INLINE int hwaes_capable(void) { return 0; }
OPENSSL_INLINE int aes_hw_set_encrypt_key(const uint8_t *user_key, int bits,
AES_KEY *key) {
abort();
}
OPENSSL_INLINE int aes_hw_set_decrypt_key(const uint8_t *user_key, int bits,
AES_KEY *key) {
abort();
}
OPENSSL_INLINE void aes_hw_encrypt(const uint8_t *in, uint8_t *out,
const AES_KEY *key) {
abort();
}
OPENSSL_INLINE void aes_hw_decrypt(const uint8_t *in, uint8_t *out,
const AES_KEY *key) {
abort();
}
OPENSSL_INLINE void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out,
size_t length, const AES_KEY *key,
uint8_t *ivec, int enc) {
abort();
}
OPENSSL_INLINE void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out,
size_t len, const AES_KEY *key,
const uint8_t ivec[16]) {
abort();
}
#endif // !HWAES
#if defined(HWAES_ECB)
void aes_hw_ecb_encrypt(const uint8_t *in, uint8_t *out, size_t length,
const AES_KEY *key, const int enc);
#endif // HWAES_ECB
#if defined(BSAES)
// Note |bsaes_cbc_encrypt| requires |enc| to be zero.
void bsaes_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length,
const AES_KEY *key, uint8_t ivec[16], int enc);
void bsaes_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len,
const AES_KEY *key, const uint8_t ivec[16]);
// VPAES to BSAES conversions are available on all BSAES platforms.
void vpaes_encrypt_key_to_bsaes(AES_KEY *out_bsaes, const AES_KEY *vpaes);
void vpaes_decrypt_key_to_bsaes(AES_KEY *out_bsaes, const AES_KEY *vpaes);
#else
OPENSSL_INLINE char bsaes_capable(void) { return 0; }
// On other platforms, bsaes_capable() will always return false and so the
// following will never be called.
OPENSSL_INLINE void bsaes_cbc_encrypt(const uint8_t *in, uint8_t *out,
size_t length, const AES_KEY *key,
uint8_t ivec[16], int enc) {
abort();
}
OPENSSL_INLINE void bsaes_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out,
size_t len, const AES_KEY *key,
const uint8_t ivec[16]) {
abort();
}
OPENSSL_INLINE void vpaes_encrypt_key_to_bsaes(AES_KEY *out_bsaes,
const AES_KEY *vpaes) {
abort();
}
OPENSSL_INLINE void vpaes_decrypt_key_to_bsaes(AES_KEY *out_bsaes,
const AES_KEY *vpaes) {
abort();
}
#endif // !BSAES
#if defined(VPAES)
// On platforms where VPAES gets defined (just above), then these functions are
// provided by asm.
int vpaes_set_encrypt_key(const uint8_t *userKey, int bits, AES_KEY *key);
int vpaes_set_decrypt_key(const uint8_t *userKey, int bits, AES_KEY *key);
void vpaes_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
void vpaes_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
#if defined(VPAES_CBC)
void vpaes_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length,
const AES_KEY *key, uint8_t *ivec, int enc);
#endif
#if defined(VPAES_CTR32)
void vpaes_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len,
const AES_KEY *key, const uint8_t ivec[16]);
#endif
#else
OPENSSL_INLINE char vpaes_capable(void) { return 0; }
// On other platforms, vpaes_capable() will always return false and so the
// following will never be called.
OPENSSL_INLINE int vpaes_set_encrypt_key(const uint8_t *userKey, int bits,
AES_KEY *key) {
abort();
}
OPENSSL_INLINE int vpaes_set_decrypt_key(const uint8_t *userKey, int bits,
AES_KEY *key) {
abort();
}
OPENSSL_INLINE void vpaes_encrypt(const uint8_t *in, uint8_t *out,
const AES_KEY *key) {
abort();
}
OPENSSL_INLINE void vpaes_decrypt(const uint8_t *in, uint8_t *out,
const AES_KEY *key) {
abort();
}
OPENSSL_INLINE void vpaes_cbc_encrypt(const uint8_t *in, uint8_t *out,
size_t length, const AES_KEY *key,
uint8_t *ivec, int enc) {
abort();
}
#endif // !VPAES
int aes_nohw_set_encrypt_key(const uint8_t *key, unsigned bits,
AES_KEY *aeskey);
int aes_nohw_set_decrypt_key(const uint8_t *key, unsigned bits,
AES_KEY *aeskey);
void aes_nohw_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
void aes_nohw_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
void aes_nohw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out,
size_t blocks, const AES_KEY *key,
const uint8_t ivec[16]);
void aes_nohw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len,
const AES_KEY *key, uint8_t *ivec, const int enc);
#if defined(__cplusplus)
} // extern C
#endif
#endif // OPENSSL_HEADER_AES_INTERNAL_H
|
