1 /* hmac.h
2  *
3  * Copyright (C) 2006-2021 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 
24 /*  hmac.h defines mini hamc openssl compatibility layer
25  *
26  */
27 
28 
29 #ifndef WOLFSSL_HMAC_H_
30 #define WOLFSSL_HMAC_H_
31 
32 #include <wolfssl/wolfcrypt/settings.h>
33 
34 #ifdef WOLFSSL_PREFIX
35 #include "prefix_hmac.h"
36 #endif
37 
38 #include <wolfssl/openssl/compat_types.h>
39 #include <wolfssl/openssl/opensslv.h>
40 
41 #ifdef __cplusplus
42     extern "C" {
43 #endif
44 
45 
46 WOLFSSL_API unsigned char* wolfSSL_HMAC(const WOLFSSL_EVP_MD* evp_md,
47                                const void* key, int key_len,
48                                const unsigned char* d, int n, unsigned char* md,
49                                unsigned int* md_len);
50 
51 WOLFSSL_API WOLFSSL_HMAC_CTX* wolfSSL_HMAC_CTX_new(void);
52 WOLFSSL_API int wolfSSL_HMAC_CTX_Init(WOLFSSL_HMAC_CTX* ctx);
53 WOLFSSL_API int wolfSSL_HMAC_CTX_copy(WOLFSSL_HMAC_CTX* des,
54                                        WOLFSSL_HMAC_CTX* src);
55 WOLFSSL_LOCAL int wolfSSL_HmacCopy(Hmac* des, Hmac* src);
56 WOLFSSL_API int wolfSSL_HMAC_Init(WOLFSSL_HMAC_CTX* ctx, const void* key,
57                                  int keylen, const WOLFSSL_EVP_MD* type);
58 WOLFSSL_API int wolfSSL_HMAC_Init_ex(WOLFSSL_HMAC_CTX* ctx, const void* key,
59                              int keylen, const EVP_MD* type, WOLFSSL_ENGINE* e);
60 WOLFSSL_API int wolfSSL_HMAC_Update(WOLFSSL_HMAC_CTX* ctx,
61                                    const unsigned char* data, int len);
62 WOLFSSL_API int wolfSSL_HMAC_Final(WOLFSSL_HMAC_CTX* ctx, unsigned char* hash,
63                                   unsigned int* len);
64 WOLFSSL_API int wolfSSL_HMAC_cleanup(WOLFSSL_HMAC_CTX* ctx);
65 WOLFSSL_API void wolfSSL_HMAC_CTX_cleanup(WOLFSSL_HMAC_CTX* ctx);
66 WOLFSSL_API void wolfSSL_HMAC_CTX_free(WOLFSSL_HMAC_CTX* ctx);
67 WOLFSSL_API size_t wolfSSL_HMAC_size(const WOLFSSL_HMAC_CTX *ctx);
68 WOLFSSL_API const WOLFSSL_EVP_MD *wolfSSL_HMAC_CTX_get_md(const WOLFSSL_HMAC_CTX *ctx);
69 
70 typedef struct WOLFSSL_HMAC_CTX HMAC_CTX;
71 
72 #define HMAC(a,b,c,d,e,f,g) wolfSSL_HMAC((a),(b),(c),(d),(e),(f),(g))
73 
74 #define HMAC_CTX_new wolfSSL_HMAC_CTX_new
75 #define HMAC_CTX_init wolfSSL_HMAC_CTX_Init
76 #define HMAC_CTX_copy wolfSSL_HMAC_CTX_copy
77 #define HMAC_CTX_free wolfSSL_HMAC_CTX_free
78 #define HMAC_CTX_cleanup wolfSSL_HMAC_CTX_cleanup
79 #define HMAC_CTX_reset wolfSSL_HMAC_cleanup
80 #define HMAC_Init_ex  wolfSSL_HMAC_Init_ex
81 #define HMAC_Init     wolfSSL_HMAC_Init
82 #define HMAC_Update   wolfSSL_HMAC_Update
83 #define HMAC_Final    wolfSSL_HMAC_Final
84 #define HMAC_cleanup  wolfSSL_HMAC_cleanup
85 #define HMAC_size     wolfSSL_HMAC_size
86 #define HMAC_CTX_get_md wolfSSL_HMAC_CTX_get_md
87 
88 
89 #ifdef __cplusplus
90     } /* extern "C" */
91 #endif
92 
93 
94 #endif /* WOLFSSL_HMAC_H_ */
95