59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
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/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
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* the GNU General Public License.
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*
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* Copyright 2006 Develer S.r.l. (http://www.develer.com/)
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*
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* -->
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*
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* \brief TEA Tiny Encription Algorith functions.
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*
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* Documentation for TEA is available at
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* http://en.wikipedia.org/wiki/Tiny_Encryption_Algorithm
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*
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* \author Francesco Sacchi <batt@develer.com>
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*
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* $WIZ$ module_name = "tea"
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*/
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#ifndef ALGO_TEA_H
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#define ALGO_TEA_H
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#include <cfg/compiler.h>
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#define TEA_KEY_LEN 16 //!< TEA key size.
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#define TEA_BLOCK_LEN 8 //!< TEA block length.
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#define DELTA 0x9E3779B9 //!< Magic value. (Golden number * 2^31)
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#define ROUNDS 32 //!< Number of rounds.
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void tea_enc(void *_v, void *_k);
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void tea_dec(void *_v, void *_k);
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#endif /* ALGO_TEA_H */
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