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master
flaneth
firmware.dartboard
xtea.h
initial commit after making CF identify work
Stefan Schuermans
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e8658d5
at 2012-04-15 19:57:57
xtea.h
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/* flaneth - flash and ethernet - dartboard mod * version 0.1 date 2008-11-09 * Copyright (C) 2007-2008 Stefan Schuermans <stefan@schuermans.info> * Copyleft: GNU public license V2 - http://www.gnu.org/copyleft/gpl.html * a BlinkenArea project - http://www.blinkenarea.org/ */ #ifndef INC_xtea #define INC_xtea #include <stdint.h> // XTEA encryption // rounds should be at least 32 // p_in == p_out is allowed // p_prev must be initialized to zero before first call to this function extern void xtea_enc( uint32_t key[4], uint8_t rounds, uint64_t * p_in, uint64_t * p_out, unsigned int block_cnt, uint64_t * p_prev ); // XTEA decryption // rounds should be at least 32 // p_in == p_out is allowed // p_prev must be initialized to zero before first call to this function extern void xtea_dec( uint32_t key[4], uint8_t rounds, uint64_t * p_in, uint64_t * p_out, unsigned int block_cnt, uint64_t * p_prev ); #endif // #ifndef INC_xtea
