00001 /* crypto/hmac/hmac.h */ 00002 /* Copyright (C) 1995-1998 Eric Young ([email protected]) 00003 * All rights reserved. 00004 * 00005 * This package is an SSL implementation written 00006 * by Eric Young ([email protected]). 00007 * The implementation was written so as to conform with Netscapes SSL. 00008 * 00009 * This library is free for commercial and non-commercial use as long as 00010 * the following conditions are aheared to. The following conditions 00011 * apply to all code found in this distribution, be it the RC4, RSA, 00012 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 00013 * included with this distribution is covered by the same copyright terms 00014 * except that the holder is Tim Hudson ([email protected]). 00015 * 00016 * Copyright remains Eric Young's, and as such any Copyright notices in 00017 * the code are not to be removed. 00018 * If this package is used in a product, Eric Young should be given attribution 00019 * as the author of the parts of the library used. 00020 * This can be in the form of a textual message at program startup or 00021 * in documentation (online or textual) provided with the package. 00022 * 00023 * Redistribution and use in source and binary forms, with or without 00024 * modification, are permitted provided that the following conditions 00025 * are met: 00026 * 1. Redistributions of source code must retain the copyright 00027 * notice, this list of conditions and the following disclaimer. 00028 * 2. Redistributions in binary form must reproduce the above copyright 00029 * notice, this list of conditions and the following disclaimer in the 00030 * documentation and/or other materials provided with the distribution. 00031 * 3. All advertising materials mentioning features or use of this software 00032 * must display the following acknowledgement: 00033 * "This product includes cryptographic software written by 00034 * Eric Young ([email protected])" 00035 * The word 'cryptographic' can be left out if the rouines from the library 00036 * being used are not cryptographic related :-). 00037 * 4. If you include any Windows specific code (or a derivative thereof) from 00038 * the apps directory (application code) you must include an acknowledgement: 00039 * "This product includes software written by Tim Hudson ([email protected])" 00040 * 00041 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 00042 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00043 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00044 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 00045 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00046 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00047 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00048 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00049 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00050 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00051 * SUCH DAMAGE. 00052 * 00053 * The licence and distribution terms for any publically available version or 00054 * derivative of this code cannot be changed. i.e. this code cannot simply be 00055 * copied and put under another distribution licence 00056 * [including the GNU Public Licence.] 00057 */ 00058 /* 00059 © Portions copyright (c) 2006 Nokia Corporation. All rights reserved. 00060 */ 00061 00062 #ifndef HEADER_HMAC_H 00063 #define HEADER_HMAC_H 00064 00065 #if (defined(__SYMBIAN32__) && !defined(SYMBIAN)) 00066 #define SYMBIAN 00067 #endif 00068 00069 #ifdef SYMBIAN 00070 #include <e32def.h> 00071 #endif 00072 #include <openssl/opensslconf.h> 00073 00074 #ifdef OPENSSL_NO_HMAC 00075 #error HMAC is disabled. 00076 #endif 00077 00078 #include <openssl/evp.h> 00079 00080 #define HMAC_MAX_MD_CBLOCK 128 /* largest known is SHA512 */ 00081 00082 #ifdef __cplusplus 00083 extern "C" { 00084 #endif 00085 00086 typedef struct hmac_ctx_st 00087 { 00088 const EVP_MD *md; 00089 EVP_MD_CTX md_ctx; 00090 EVP_MD_CTX i_ctx; 00091 EVP_MD_CTX o_ctx; 00092 unsigned int key_length; 00093 unsigned char key[HMAC_MAX_MD_CBLOCK]; 00094 } HMAC_CTX; 00095 00096 #define HMAC_size(e) (EVP_MD_size((e)->md)) 00097 00098 00099 IMPORT_C void HMAC_CTX_init(HMAC_CTX *ctx); 00100 IMPORT_C void HMAC_CTX_cleanup(HMAC_CTX *ctx); 00101 00102 #define HMAC_cleanup(ctx) HMAC_CTX_cleanup(ctx) /* deprecated */ 00103 00104 IMPORT_C void HMAC_Init(HMAC_CTX *ctx, const void *key, int len, 00105 const EVP_MD *md); /* deprecated */ 00106 IMPORT_C void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, 00107 const EVP_MD *md, ENGINE *impl); 00108 IMPORT_C void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len); 00109 IMPORT_C void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len); 00110 IMPORT_C unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len, 00111 const unsigned char *d, size_t n, unsigned char *md, 00112 unsigned int *md_len); 00113 00114 00115 #ifdef __cplusplus 00116 } 00117 #endif 00118 00119 #endif