source: UsbWattMeter/trunk/wolfssl-3.7.0/wolfssl/wolfcrypt/aes.h@ 473

Last change on this file since 473 was 167, checked in by coas-nagasima, 8 years ago

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1/* aes.h
2 *
3 * Copyright (C) 2006-2015 wolfSSL Inc.
4 *
5 * This file is part of wolfSSL. (formerly known as CyaSSL)
6 *
7 * wolfSSL is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * wolfSSL is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22#ifndef WOLF_CRYPT_AES_H
23#define WOLF_CRYPT_AES_H
24
25#include <wolfssl/wolfcrypt/types.h>
26
27#ifndef NO_AES
28
29/* included for fips @wc_fips */
30#ifdef HAVE_FIPS
31#include <cyassl/ctaocrypt/aes.h>
32#if defined(CYASSL_AES_COUNTER) && !defined(WOLFSSL_AES_COUNTER)
33 #define WOLFSSL_AES_COUNTER
34#endif
35#if !defined(WOLFSSL_AES_DIRECT) && defined(CYASSL_AES_DIRECT)
36 #define WOLFSSL_AES_DIRECT
37#endif
38#endif
39
40#ifndef HAVE_FIPS /* to avoid redefinition of macros */
41#ifdef HAVE_CAVIUM
42 #include <wolfssl/ctaocrypt/logging.h>
43 #include "cavium_common.h"
44#endif
45
46#ifdef WOLFSSL_AESNI
47
48#include <wmmintrin.h>
49
50#if !defined (ALIGN16)
51 #if defined (__GNUC__)
52 #define ALIGN16 __attribute__ ( (aligned (16)))
53 #elif defined(_MSC_VER)
54 /* disable align warning, we want alignment ! */
55 #pragma warning(disable: 4324)
56 #define ALIGN16 __declspec (align (16))
57 #else
58 #define ALIGN16
59 #endif
60#endif
61
62#endif /* WOLFSSL_AESNI */
63
64#if !defined (ALIGN16)
65 #define ALIGN16
66#endif
67#endif /* HAVE_FIPS */
68
69#ifdef __cplusplus
70 extern "C" {
71#endif
72
73#ifndef HAVE_FIPS /* to avoid redefinition of structures */
74#define WOLFSSL_AES_CAVIUM_MAGIC 0xBEEF0002
75
76enum {
77 AES_ENC_TYPE = 1, /* cipher unique type */
78 AES_ENCRYPTION = 0,
79 AES_DECRYPTION = 1,
80 AES_BLOCK_SIZE = 16
81};
82
83
84typedef struct Aes {
85 /* AESNI needs key first, rounds 2nd, not sure why yet */
86 ALIGN16 word32 key[60];
87 word32 rounds;
88
89 ALIGN16 word32 reg[AES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
90 ALIGN16 word32 tmp[AES_BLOCK_SIZE / sizeof(word32)]; /* same */
91
92#ifdef HAVE_AESGCM
93 ALIGN16 byte H[AES_BLOCK_SIZE];
94#ifdef GCM_TABLE
95 /* key-based fast multiplication table. */
96 ALIGN16 byte M0[256][AES_BLOCK_SIZE];
97#endif /* GCM_TABLE */
98#endif /* HAVE_AESGCM */
99#ifdef WOLFSSL_AESNI
100 byte use_aesni;
101#endif /* WOLFSSL_AESNI */
102#ifdef HAVE_CAVIUM
103 AesType type; /* aes key type */
104 int devId; /* nitrox device id */
105 word32 magic; /* using cavium magic */
106 word64 contextHandle; /* nitrox context memory handle */
107#endif
108#ifdef WOLFSSL_AES_COUNTER
109 word32 left; /* unsued bytes left from last call */
110#endif
111#ifdef WOLFSSL_PIC32MZ_CRYPT
112 word32 key_ce[AES_BLOCK_SIZE*2/sizeof(word32)] ;
113 word32 iv_ce [AES_BLOCK_SIZE /sizeof(word32)] ;
114 int keylen ;
115#endif
116#ifdef WOLFSSL_TI_CRYPT
117 int keylen ;
118#endif
119} Aes;
120
121
122#ifdef HAVE_AESGCM
123typedef struct Gmac {
124 Aes aes;
125} Gmac;
126#endif /* HAVE_AESGCM */
127#endif /* HAVE_FIPS */
128
129WOLFSSL_API int wc_AesSetKey(Aes* aes, const byte* key, word32 len,
130 const byte* iv, int dir);
131WOLFSSL_API int wc_AesSetIV(Aes* aes, const byte* iv);
132WOLFSSL_API int wc_AesCbcEncrypt(Aes* aes, byte* out,
133 const byte* in, word32 sz);
134WOLFSSL_API int wc_AesCbcDecrypt(Aes* aes, byte* out,
135 const byte* in, word32 sz);
136
137/* AES-CTR */
138#ifdef WOLFSSL_AES_COUNTER
139 WOLFSSL_API void wc_AesCtrEncrypt(Aes* aes, byte* out,
140 const byte* in, word32 sz);
141#endif
142/* AES-DIRECT */
143#if defined(WOLFSSL_AES_DIRECT)
144 WOLFSSL_API void wc_AesEncryptDirect(Aes* aes, byte* out, const byte* in);
145 WOLFSSL_API void wc_AesDecryptDirect(Aes* aes, byte* out, const byte* in);
146 WOLFSSL_API int wc_AesSetKeyDirect(Aes* aes, const byte* key, word32 len,
147 const byte* iv, int dir);
148#endif
149#ifdef HAVE_AESGCM
150 WOLFSSL_API int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len);
151 WOLFSSL_API int wc_AesGcmEncrypt(Aes* aes, byte* out,
152 const byte* in, word32 sz,
153 const byte* iv, word32 ivSz,
154 byte* authTag, word32 authTagSz,
155 const byte* authIn, word32 authInSz);
156 WOLFSSL_API int wc_AesGcmDecrypt(Aes* aes, byte* out,
157 const byte* in, word32 sz,
158 const byte* iv, word32 ivSz,
159 const byte* authTag, word32 authTagSz,
160 const byte* authIn, word32 authInSz);
161
162 WOLFSSL_API int wc_GmacSetKey(Gmac* gmac, const byte* key, word32 len);
163 WOLFSSL_API int wc_GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz,
164 const byte* authIn, word32 authInSz,
165 byte* authTag, word32 authTagSz);
166#endif /* HAVE_AESGCM */
167#ifdef HAVE_AESCCM
168 WOLFSSL_API void wc_AesCcmSetKey(Aes* aes, const byte* key, word32 keySz);
169 WOLFSSL_API int wc_AesCcmEncrypt(Aes* aes, byte* out,
170 const byte* in, word32 inSz,
171 const byte* nonce, word32 nonceSz,
172 byte* authTag, word32 authTagSz,
173 const byte* authIn, word32 authInSz);
174 WOLFSSL_API int wc_AesCcmDecrypt(Aes* aes, byte* out,
175 const byte* in, word32 inSz,
176 const byte* nonce, word32 nonceSz,
177 const byte* authTag, word32 authTagSz,
178 const byte* authIn, word32 authInSz);
179#endif /* HAVE_AESCCM */
180
181#ifdef HAVE_CAVIUM
182 WOLFSSL_API int wc_AesInitCavium(Aes*, int);
183 WOLFSSL_API void wc_AesFreeCavium(Aes*);
184#endif
185
186#ifdef __cplusplus
187 } /* extern "C" */
188#endif
189
190
191#endif /* NO_AES */
192#endif /* WOLF_CRYPT_AES_H */
193
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