1 | /* hmac.h
|
---|
2 | *
|
---|
3 | * Copyright (C) 2006-2017 wolfSSL Inc.
|
---|
4 | *
|
---|
5 | * This file is part of wolfSSL.
|
---|
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 02110-1335, USA
|
---|
20 | */
|
---|
21 |
|
---|
22 | /*!
|
---|
23 | \file wolfssl/wolfcrypt/hmac.h
|
---|
24 | */
|
---|
25 |
|
---|
26 | #ifndef NO_HMAC
|
---|
27 |
|
---|
28 | #ifndef WOLF_CRYPT_HMAC_H
|
---|
29 | #define WOLF_CRYPT_HMAC_H
|
---|
30 |
|
---|
31 | #include <wolfssl/wolfcrypt/hash.h>
|
---|
32 |
|
---|
33 | #if defined(HAVE_FIPS) && \
|
---|
34 | (!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))
|
---|
35 | /* for fips @wc_fips */
|
---|
36 | #include <cyassl/ctaocrypt/hmac.h>
|
---|
37 | #define WC_HMAC_BLOCK_SIZE HMAC_BLOCK_SIZE
|
---|
38 | #endif
|
---|
39 |
|
---|
40 |
|
---|
41 | #if defined(HAVE_FIPS) && \
|
---|
42 | defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
|
---|
43 | #include <wolfssl/wolfcrypt/fips.h>
|
---|
44 | #endif
|
---|
45 |
|
---|
46 | #ifdef __cplusplus
|
---|
47 | extern "C" {
|
---|
48 | #endif
|
---|
49 |
|
---|
50 | /* avoid redefinition of structs */
|
---|
51 | #if !defined(HAVE_FIPS) || \
|
---|
52 | (defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
|
---|
53 |
|
---|
54 | #ifdef WOLFSSL_ASYNC_CRYPT
|
---|
55 | #include <wolfssl/wolfcrypt/async.h>
|
---|
56 | #endif
|
---|
57 |
|
---|
58 | #ifndef NO_OLD_WC_NAMES
|
---|
59 | #define HMAC_BLOCK_SIZE WC_HMAC_BLOCK_SIZE
|
---|
60 | #endif
|
---|
61 |
|
---|
62 | enum {
|
---|
63 | HMAC_FIPS_MIN_KEY = 14, /* 112 bit key length minimum */
|
---|
64 |
|
---|
65 | IPAD = 0x36,
|
---|
66 | OPAD = 0x5C,
|
---|
67 |
|
---|
68 | /* If any hash is not enabled, add the ID here. */
|
---|
69 | #ifdef NO_MD5
|
---|
70 | WC_MD5 = WC_HASH_TYPE_MD5,
|
---|
71 | #endif
|
---|
72 | #ifdef NO_SHA
|
---|
73 | WC_SHA = WC_HASH_TYPE_SHA,
|
---|
74 | #endif
|
---|
75 | #ifdef NO_SHA256
|
---|
76 | WC_SHA256 = WC_HASH_TYPE_SHA256,
|
---|
77 | #endif
|
---|
78 | #ifndef WOLFSSL_SHA512
|
---|
79 | WC_SHA512 = WC_HASH_TYPE_SHA512,
|
---|
80 | #endif
|
---|
81 | #ifndef WOLFSSL_SHA384
|
---|
82 | WC_SHA384 = WC_HASH_TYPE_SHA384,
|
---|
83 | #endif
|
---|
84 | #ifndef HAVE_BLAKE2
|
---|
85 | BLAKE2B_ID = WC_HASH_TYPE_BLAKE2B,
|
---|
86 | #endif
|
---|
87 | #ifndef WOLFSSL_SHA224
|
---|
88 | WC_SHA224 = WC_HASH_TYPE_SHA224,
|
---|
89 | #endif
|
---|
90 | #ifndef WOLFSSL_SHA3
|
---|
91 | WC_SHA3_224 = WC_HASH_TYPE_SHA3_224,
|
---|
92 | WC_SHA3_256 = WC_HASH_TYPE_SHA3_256,
|
---|
93 | WC_SHA3_384 = WC_HASH_TYPE_SHA3_384,
|
---|
94 | WC_SHA3_512 = WC_HASH_TYPE_SHA3_512,
|
---|
95 | #endif
|
---|
96 | };
|
---|
97 |
|
---|
98 | /* Select the largest available hash for the buffer size. */
|
---|
99 | #define WC_HMAC_BLOCK_SIZE WC_MAX_BLOCK_SIZE
|
---|
100 |
|
---|
101 | #if !defined(WOLFSSL_SHA3) && !defined(WOLFSSL_SHA512) && !defined(HAVE_BLAKE2) && \
|
---|
102 | !defined(WOLFSSL_SHA384) && defined(NO_SHA256) && defined(WOLFSSL_SHA224) && \
|
---|
103 | defined(NO_SHA) && defined(NO_MD5)
|
---|
104 | #error "You have to have some kind of hash if you want to use HMAC."
|
---|
105 | #endif
|
---|
106 |
|
---|
107 |
|
---|
108 | /* hash union */
|
---|
109 | typedef union {
|
---|
110 | #ifndef NO_MD5
|
---|
111 | wc_Md5 md5;
|
---|
112 | #endif
|
---|
113 | #ifndef NO_SHA
|
---|
114 | wc_Sha sha;
|
---|
115 | #endif
|
---|
116 | #ifdef WOLFSSL_SHA224
|
---|
117 | wc_Sha224 sha224;
|
---|
118 | #endif
|
---|
119 | #ifndef NO_SHA256
|
---|
120 | wc_Sha256 sha256;
|
---|
121 | #endif
|
---|
122 | #ifdef WOLFSSL_SHA384
|
---|
123 | wc_Sha384 sha384;
|
---|
124 | #endif
|
---|
125 | #ifdef WOLFSSL_SHA512
|
---|
126 | wc_Sha512 sha512;
|
---|
127 | #endif
|
---|
128 | #ifdef HAVE_BLAKE2
|
---|
129 | Blake2b blake2b;
|
---|
130 | #endif
|
---|
131 | #ifdef WOLFSSL_SHA3
|
---|
132 | wc_Sha3 sha3;
|
---|
133 | #endif
|
---|
134 | } Hash;
|
---|
135 |
|
---|
136 | /* Hmac digest */
|
---|
137 | typedef struct Hmac {
|
---|
138 | Hash hash;
|
---|
139 | word32 ipad[WC_HMAC_BLOCK_SIZE / sizeof(word32)]; /* same block size all*/
|
---|
140 | word32 opad[WC_HMAC_BLOCK_SIZE / sizeof(word32)];
|
---|
141 | word32 innerHash[WC_MAX_DIGEST_SIZE / sizeof(word32)];
|
---|
142 | void* heap; /* heap hint */
|
---|
143 | byte macType; /* md5 sha or sha256 */
|
---|
144 | byte innerHashKeyed; /* keyed flag */
|
---|
145 |
|
---|
146 | #ifdef WOLFSSL_ASYNC_CRYPT
|
---|
147 | WC_ASYNC_DEV asyncDev;
|
---|
148 | word16 keyLen; /* hmac key length (key in ipad) */
|
---|
149 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
150 | } Hmac;
|
---|
151 |
|
---|
152 | #endif /* HAVE_FIPS */
|
---|
153 |
|
---|
154 | /* does init */
|
---|
155 | WOLFSSL_API int wc_HmacSetKey(Hmac*, int type, const byte* key, word32 keySz);
|
---|
156 | WOLFSSL_API int wc_HmacUpdate(Hmac*, const byte*, word32);
|
---|
157 | WOLFSSL_API int wc_HmacFinal(Hmac*, byte*);
|
---|
158 | WOLFSSL_API int wc_HmacSizeByType(int type);
|
---|
159 |
|
---|
160 | WOLFSSL_API int wc_HmacInit(Hmac* hmac, void* heap, int devId);
|
---|
161 | WOLFSSL_API void wc_HmacFree(Hmac*);
|
---|
162 |
|
---|
163 | WOLFSSL_API int wolfSSL_GetHmacMaxSize(void);
|
---|
164 |
|
---|
165 | WOLFSSL_LOCAL int _InitHmac(Hmac* hmac, int type, void* heap);
|
---|
166 |
|
---|
167 | #ifdef HAVE_HKDF
|
---|
168 |
|
---|
169 | WOLFSSL_API int wc_HKDF_Extract(int type, const byte* salt, word32 saltSz,
|
---|
170 | const byte* inKey, word32 inKeySz, byte* out);
|
---|
171 | WOLFSSL_API int wc_HKDF_Expand(int type, const byte* inKey, word32 inKeySz,
|
---|
172 | const byte* info, word32 infoSz,
|
---|
173 | byte* out, word32 outSz);
|
---|
174 |
|
---|
175 | WOLFSSL_API int wc_HKDF(int type, const byte* inKey, word32 inKeySz,
|
---|
176 | const byte* salt, word32 saltSz,
|
---|
177 | const byte* info, word32 infoSz,
|
---|
178 | byte* out, word32 outSz);
|
---|
179 |
|
---|
180 | #endif /* HAVE_HKDF */
|
---|
181 |
|
---|
182 | #ifdef __cplusplus
|
---|
183 | } /* extern "C" */
|
---|
184 | #endif
|
---|
185 |
|
---|
186 | #endif /* WOLF_CRYPT_HMAC_H */
|
---|
187 |
|
---|
188 | #endif /* NO_HMAC */
|
---|
189 |
|
---|