1/* 2 * Copyright (c) 2005 Kungliga Tekniska Högskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34/* $Id: hmac.h,v 1.1.1.1 2011/06/10 09:34:43 andrew Exp $ */ 35 36#ifndef HEIM_HMAC_H 37#define HEIM_HMAC_H 1 38 39#include <hcrypto/evp.h> 40 41/* symbol renaming */ 42#define HMAC_CTX_init hc_HMAC_CTX_init 43#define HMAC_CTX_cleanup hc_HMAC_CTX_cleanup 44#define HMAC_size hc_HMAC_size 45#define HMAC_Init_ex hc_HMAC_Init_ex 46#define HMAC_Update hc_HMAC_Update 47#define HMAC_Final hc_HMAC_Final 48#define HMAC hc_HMAC 49 50/* 51 * 52 */ 53 54#define HMAC_MAX_MD_CBLOCK 64 55 56typedef struct hc_HMAC_CTX HMAC_CTX; 57 58struct hc_HMAC_CTX { 59 const EVP_MD *md; 60 ENGINE *engine; 61 EVP_MD_CTX *ctx; 62 size_t key_length; 63 void *opad; 64 void *ipad; 65 void *buf; 66}; 67 68 69void HMAC_CTX_init(HMAC_CTX *); 70void HMAC_CTX_cleanup(HMAC_CTX *ctx); 71 72size_t HMAC_size(const HMAC_CTX *ctx); 73 74void HMAC_Init_ex(HMAC_CTX *, const void *, size_t, 75 const EVP_MD *, ENGINE *); 76void HMAC_Update(HMAC_CTX *ctx, const void *data, size_t len); 77void HMAC_Final(HMAC_CTX *ctx, void *md, unsigned int *len); 78 79void * HMAC(const EVP_MD *evp_md, const void *key, size_t key_len, 80 const void *data, size_t n, void *md, unsigned int *md_len); 81 82#endif /* HEIM_HMAC_H */ 83