1 /** 2 * \file sha1.h 3 * 4 * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine 5 * 6 * Copyright (C) 2009 Paul Bakker <polarssl_maintainer at polarssl dot org> 7 * 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 14 * * Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * * Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * * Neither the names of PolarSSL or XySSL nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include "netif/ppp/ppp_opts.h" 37 #if LWIP_INCLUDED_POLARSSL_SHA1 38 39 #ifndef LWIP_INCLUDED_POLARSSL_SHA1_H 40 #define LWIP_INCLUDED_POLARSSL_SHA1_H 41 42 /** 43 * \brief SHA-1 context structure 44 */ 45 typedef struct 46 { 47 unsigned long total[2]; /*!< number of bytes processed */ 48 unsigned long state[5]; /*!< intermediate digest state */ 49 unsigned char buffer[64]; /*!< data block being processed */ 50 } 51 sha1_context; 52 53 #ifdef __cplusplus 54 extern "C" { 55 #endif 56 57 /** 58 * \brief SHA-1 context setup 59 * 60 * \param ctx context to be initialized 61 */ 62 void sha1_starts( sha1_context *ctx ); 63 64 /** 65 * \brief SHA-1 process buffer 66 * 67 * \param ctx SHA-1 context 68 * \param input buffer holding the data 69 * \param ilen length of the input data 70 */ 71 void sha1_update( sha1_context *ctx, const unsigned char *input, int ilen ); 72 73 /** 74 * \brief SHA-1 final digest 75 * 76 * \param ctx SHA-1 context 77 * \param output SHA-1 checksum result 78 */ 79 void sha1_finish( sha1_context *ctx, unsigned char output[20] ); 80 81 /** 82 * \brief Output = SHA-1( input buffer ) 83 * 84 * \param input buffer holding the data 85 * \param ilen length of the input data 86 * \param output SHA-1 checksum result 87 */ 88 void sha1( unsigned char *input, int ilen, unsigned char output[20] ); 89 90 #ifdef __cplusplus 91 } 92 #endif 93 94 #endif /* LWIP_INCLUDED_POLARSSL_SHA1_H */ 95 96 #endif /* LWIP_INCLUDED_POLARSSL_SHA1 */ 97