#pragma once

// Objects for encrypting/decrypting
//
// created on 2023-04-04


#include "data.h"


enum encryptor
{
	ENCRYPT_NONE = 0,
	ENCRYPT_BASE64,
	ENCRYPT_AES,
	ENCRYPT_ZIP,
};
enum encrypt_cmd
{
	ENCRYPT_CMD_NONE = 0,
	ENCRYPT_CMD_XOR_PID,	// cmd ^= pack_id
	ENCRYPT_CMD_ADD_PID,	// cmd += pack_id
	ENCRYPT_CMD_SUB_PID,	// cmd -= pack_id
};

// Function:	encrypting & decrypting packet
// 
// Parameters:	packet - pointer to the base packet 
// 
//				data - cipher/plain data
// 
//				size - [in]: bytes of source 'data';
// 
//				cmd_type - member 'cmd' encrypting method
// 
//				type - payload encrypting method
// 
//				enc_data - encrypting data for payload encrypting method
// 
// Return:		'cmd' returned on origin packet, and returning value is for payload only. nullptr on failure
// 
// NOTE:		nullptr also returned if data was nullptr or size was ZERO
//
dyn_mem_ptr packet_encrypt(dyn_mem_ptr packet, uint32_t cmd_type = ENCRYPT_CMD_NONE, uint32_t type = ENCRYPT_NONE, uint8_t enc_data = 0);
dyn_mem_ptr packet_decrypt(dyn_mem_ptr packet);