93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
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/**
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* \file des.h
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*
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* Based on XySSL: Copyright (C) 2006-2008 Christophe Devine
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*
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* Copyright (C) 2009 Paul Bakker <polarssl_maintainer at polarssl dot org>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the names of PolarSSL or XySSL nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "lwip/opt.h"
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#if LWIP_INCLUDED_POLARSSL_DES
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#ifndef LWIP_INCLUDED_POLARSSL_DES_H
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#define LWIP_INCLUDED_POLARSSL_DES_H
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#define DES_ENCRYPT 1
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#define DES_DECRYPT 0
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/**
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* \brief DES context structure
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*/
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typedef struct
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{
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int mode; /*!< encrypt/decrypt */
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unsigned long sk[32]; /*!< DES subkeys */
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}
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des_context;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief DES key schedule (56-bit, encryption)
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*
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* \param ctx DES context to be initialized
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* \param key 8-byte secret key
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*/
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void des_setkey_enc( des_context *ctx, unsigned char key[8] );
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/**
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* \brief DES key schedule (56-bit, decryption)
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*
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* \param ctx DES context to be initialized
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* \param key 8-byte secret key
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*/
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void des_setkey_dec( des_context *ctx, unsigned char key[8] );
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/**
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* \brief DES-ECB block encryption/decryption
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*
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* \param ctx DES context
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* \param input 64-bit input block
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* \param output 64-bit output block
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*/
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void des_crypt_ecb( des_context *ctx,
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const unsigned char input[8],
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unsigned char output[8] );
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_INCLUDED_POLARSSL_DES_H */
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#endif /* LWIP_INCLUDED_POLARSSL_DES */
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