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feature: Encrypt for server address

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This commit is contained in:
yuanyuanxiang
2025-05-27 04:15:35 +08:00
parent 2c4e8528b8
commit 26470b6ad3
3 changed files with 61 additions and 6 deletions
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33
common/commands.h
View File

@@ -58,8 +58,7 @@ typedef void* LPVOID, * HANDLE;
#define CancelIo(p) close(reinterpret_cast<intptr_t>(p))
#endif
#include <string>
#include <vector>
#include "ip_enc.h"
#include <time.h>
#include <unordered_map>
@@ -352,10 +351,16 @@ public:
int FlagLen() const {
return strlen(szFlag);
}
const char* ServerIP()const {
const char* ServerIP(){
if (bEncrypt) {
Decrypt();
}
return szServerIP;
}
int ServerPort()const {
int ServerPort() {
if (bEncrypt) {
Decrypt();
}
return atoi(szPort);
}
int ClientType()const {
@@ -372,8 +377,24 @@ public:
return modified;
}
bool IsValid()const {
return strlen(szServerIP) != 0 && atoi(szPort) > 0;
void Encrypt() {
if (!bEncrypt){
bEncrypt = true;
StreamCipher cipher(0x12345678);
cipher.process((uint8_t*)szServerIP, sizeof(szServerIP));
cipher.process((uint8_t*)szPort, sizeof(szPort));
}
}
void Decrypt() {
if (bEncrypt) {
bEncrypt = false;
StreamCipher cipher(0x12345678);
cipher.process((uint8_t*)szServerIP, sizeof(szServerIP));
cipher.process((uint8_t*)szPort, sizeof(szPort));
}
}
bool IsValid() {
return strlen(ServerIP()) != 0 && ServerPort() > 0;
}
int Size() const {
return sizeof(CONNECT_ADDRESS);

33
common/ip_enc.h Normal file
View File

@@ -0,0 +1,33 @@
#pragma once
#include <vector>
#include <cstdint>
#include <string>
// Encode for IP and Port.
// provided by ChatGPT.
class StreamCipher {
private:
uint32_t state;
// <20>򵥷<EFBFBD><F2B5A5B7><EFBFBD><EFBFBD><EFBFBD>α<EFBFBD><CEB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
uint8_t prngNext() {
// <20><><EFBFBD>ӣ<EFBFBD>xorshift32<33><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
state ^= (state << 13);
state ^= (state >> 17);
state ^= (state << 5);
// <20>ٻ<EFBFBD><D9BB><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>򵥵ķ<F2B5A5B5><C4B7><EFBFBD><EFBFBD>Ա任
uint8_t out = (state & 0xFF) ^ ((state >> 8) & 0xFF);
return out;
}
public:
StreamCipher(uint32_t key) : state(key) {}
// <20><><EFBFBD>ܽ<EFBFBD><DCBD>ܣ<EFBFBD><DCA3>Գƣ<D4B3><C6A3><EFBFBD><EFBFBD>Ȳ<EFBFBD><C8B2>䣩
void process(uint8_t* data, size_t len) {
for (size_t i = 0; i < len; ++i) {
data[i] ^= prngNext();
}
}
};

1
server/2015Remote/BuildDlg.cpp
View File

@@ -151,6 +151,7 @@ void CBuildDlg::OnBnClickedOk()
SAFE_DELETE_ARRAY(szBuffer);
return;
}
g_ConnectAddress.Encrypt();
try
{
// <20><><EFBFBD>±<EFBFBD>ʶ