+++ /dev/null
-/**
- * \file sha2.h
- *
- * Copyright (C) 2006-2010, Brainspark B.V.
- *
- * This file is part of PolarSSL (http://www.polarssl.org)
- * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef POLARSSL_SHA2_H
-#define POLARSSL_SHA2_H
-
-/**
- * \brief SHA-256 context structure
- */
-#ifndef HAVE_SHA2_CONTEXT
-#define HAVE_SHA2_CONTEXT
-typedef struct sha2_context sha2_context;
-#endif
-
-struct sha2_context
-{
- unsigned long total[2]; /*!< number of bytes processed */
- unsigned long state[8]; /*!< intermediate digest state */
- unsigned char buffer[64]; /*!< data block being processed */
-
- unsigned char ipad[64]; /*!< HMAC: inner padding */
- unsigned char opad[64]; /*!< HMAC: outer padding */
- int is224; /*!< 0 => SHA-256, else SHA-224 */
-};
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief SHA-256 context setup
- *
- * \param ctx context to be initialized
- * \param is224 0 = use SHA256, 1 = use SHA224
- */
-void sha2_starts( sha2_context *ctx, int is224 );
-
-/**
- * \brief SHA-256 process buffer
- *
- * \param ctx SHA-256 context
- * \param input buffer holding the data
- * \param ilen length of the input data
- */
-void sha2_update( sha2_context *ctx, const unsigned char *input, int ilen );
-
-/**
- * \brief SHA-256 final digest
- *
- * \param ctx SHA-256 context
- * \param output SHA-224/256 checksum result
- */
-void sha2_finish( sha2_context *ctx, unsigned char output[32] );
-
-/**
- * \brief Output = SHA-256( input buffer )
- *
- * \param input buffer holding the data
- * \param ilen length of the input data
- * \param output SHA-224/256 checksum result
- * \param is224 0 = use SHA256, 1 = use SHA224
- */
-void sha2( const unsigned char *input, int ilen,
- unsigned char output[32], int is224 );
-
-/**
- * \brief Output = SHA-256( file contents )
- *
- * \param path input file name
- * \param output SHA-224/256 checksum result
- * \param is224 0 = use SHA256, 1 = use SHA224
- *
- * \return 0 if successful, 1 if fopen failed,
- * or 2 if fread failed
- */
-int sha2_file( const char *path, unsigned char output[32], int is224 );
-
-/**
- * \brief SHA-256 HMAC context setup
- *
- * \param ctx HMAC context to be initialized
- * \param key HMAC secret key
- * \param keylen length of the HMAC key
- * \param is224 0 = use SHA256, 1 = use SHA224
- */
-void sha2_hmac_starts( sha2_context *ctx, const unsigned char *key, int keylen,
- int is224 );
-
-/**
- * \brief SHA-256 HMAC process buffer
- *
- * \param ctx HMAC context
- * \param input buffer holding the data
- * \param ilen length of the input data
- */
-void sha2_hmac_update( sha2_context *ctx, const unsigned char *input, int ilen );
-
-/**
- * \brief SHA-256 HMAC final digest
- *
- * \param ctx HMAC context
- * \param output SHA-224/256 HMAC checksum result
- */
-void sha2_hmac_finish( sha2_context *ctx, unsigned char output[32] );
-
-/**
- * \brief SHA-256 HMAC context reset
- *
- * \param ctx HMAC context to be reset
- */
-void sha2_hmac_reset( sha2_context *ctx );
-
-/**
- * \brief Output = HMAC-SHA-256( hmac key, input buffer )
- *
- * \param key HMAC secret key
- * \param keylen length of the HMAC key
- * \param input buffer holding the data
- * \param ilen length of the input data
- * \param output HMAC-SHA-224/256 result
- * \param is224 0 = use SHA256, 1 = use SHA224
- */
-void sha2_hmac( const unsigned char *key, int keylen,
- const unsigned char *input, int ilen,
- unsigned char output[32], int is224 );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* sha2.h */