eive-obsw/thirdparty/libcsp/include/csp/crypto/csp_xtea.h

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2021-03-04 18:29:28 +01:00
/*
Cubesat Space Protocol - A small network-layer protocol designed for Cubesats
Copyright (C) 2012 GomSpace ApS (http://www.gomspace.com)
Copyright (C) 2012 AAUSAT3 Project (http://aausat3.space.aau.dk)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _CSP_XTEA_H_
#define _CSP_XTEA_H_
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define CSP_XTEA_IV_LENGTH 8
/**
* XTEA encrypt byte array
* @param plain Pointer to plain text
* @param len Length of plain text
* @param iv Initialization vector
*/
int csp_xtea_encrypt(uint8_t * plain, const uint32_t len, uint32_t iv[2]);
/**
* Decrypt XTEA encrypted byte array
* @param cipher Pointer to cipher text
* @param len Length of plain text
* @param iv Initialization vector
*/
int csp_xtea_decrypt(uint8_t * cipher, const uint32_t len, uint32_t iv[2]);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif // _CSP_XTEA_H_