void num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
uint64_t bytes_to_num(uint8_t* src, size_t len);
char * printBits(size_t const size, void const * const ptr);
-uint8_t *SwapEndian64(uint8_t *src, size_t len);
+uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize);
char param_getchar(const char *line, int paramnum);
uint8_t param_get8(const char *line, int paramnum);
uint8_t GetParity( char *string, uint8_t type, int length);
void wiegand_add_parity(char *target, char *source, char length);
+void xor(unsigned char *dst, unsigned char *src, size_t len);
+int32_t le24toh(uint8_t data[3]);