46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
#pragma once
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// Objects for encrypting/decrypting
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//
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// created on 2023-04-04
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#include "data.h"
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enum encryptor
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{
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ENCRYPT_NONE = 0,
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ENCRYPT_BASE64,
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ENCRYPT_AES,
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ENCRYPT_ZIP,
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};
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enum encrypt_cmd
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{
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ENCRYPT_CMD_NONE = 0,
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ENCRYPT_CMD_XOR_PID, // cmd ^= pack_id
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ENCRYPT_CMD_ADD_PID, // cmd += pack_id
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ENCRYPT_CMD_SUB_PID, // cmd -= pack_id
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};
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// Function: encrypting & decrypting packet
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//
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// Parameters: packet - pointer to the base packet
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//
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// data - cipher/plain data
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//
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// size - [in]: bytes of source 'data';
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//
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// cmd_type - member 'cmd' encrypting method
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//
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// type - payload encrypting method
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//
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// enc_data - encrypting data for payload encrypting method
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//
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// Return: 'cmd' returned on origin packet, and returning value is for payload only. nullptr on failure
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//
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// NOTE: nullptr also returned if data was nullptr or size was ZERO
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//
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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);
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dyn_mem_ptr packet_decrypt(dyn_mem_ptr packet);
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