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WIP security commit.

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Jonathan Naylor
2018-01-22 23:22:32 +00:00
parent 9105407836
commit 88b12104d3
9 changed files with 342 additions and 392 deletions
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21
NXDNCRC.h
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@@ -1,5 +1,5 @@
/*
* Copyright (C) 2015,2016,2018 by Jonathan Naylor G4KLX
* Copyright (C) 2018 by Jonathan Naylor G4KLX
*
* 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
@@ -19,19 +19,24 @@
#if !defined(NXDNCRC_H)
#define NXDNCRC_H
#include <cstdint>
class CNXDNCRC
{
public:
static bool checkFiveBit(bool* in, unsigned int tcrc);
static void encodeFiveBit(const bool* in, unsigned int& tcrc);
static bool checkCRC6(const unsigned char* in, unsigned int offset, unsigned int length);
static void encodeCRC6(unsigned char* in, unsigned int offset, unsigned int length);
static void addCCITT161(unsigned char* in, unsigned int length);
static void addCCITT162(unsigned char* in, unsigned int length);
static bool checkCRC12(const unsigned char* in, unsigned int offset, unsigned int length);
static void encodeCRC12(unsigned char* in, unsigned int offset, unsigned int length);
static bool checkCCITT161(const unsigned char* in, unsigned int length);
static bool checkCCITT162(const unsigned char* in, unsigned int length);
static bool checkCRC15(const unsigned char* in, unsigned int offset, unsigned int length);
static void encodeCRC15(unsigned char* in, unsigned int offset, unsigned int length);
static unsigned char crc8(const unsigned char* in, unsigned int length);
private:
static uint8_t createCRC6(const unsigned char* in, unsigned int offser, unsigned int length);
static uint16_t createCRC12(const unsigned char* in, unsigned int offser, unsigned int length);
static uint16_t createCRC15(const unsigned char* in, unsigned int offser, unsigned int length);
};
#endif