#ifndef ENCRYPTION_H
#define ENCRYPTION_H
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>

extern const uint8_t XOR_KEY;   

size_t xorCryptBytes(const uint8_t *in, uint8_t *out, size_t len, uint8_t key);
uint16_t computeCRC16(const uint8_t *data, size_t len);

#endif