Calculate typora IV by calling main.node.

calc_typora_iv.cpp

#include <windows.h>
#include <iostream>
#include <iomanip>
typedef int64_t(*FunctionPtr)(int64_t* array, int64_t p2, int64_t p3);
int main() {
    HMODULE hModule = LoadLibrary(L"./main.node");
    DWORD_PTR baseAddress = (DWORD_PTR)hModule;
    DWORD_PTR functionOffset = 0x1992;
    DWORD_PTR functionAddress = baseAddress + functionOffset;
    FunctionPtr func = (FunctionPtr)functionAddress;
    if (!func) {
        std::cerr << "无法获取函数指针" << std::endl;
        FreeLibrary(hModule);
        return 1;
    }
    const int64_t arrayLength = 3;
    int64_t inputArray[arrayLength] = { 0,0 ,0 };
    int64_t len = 139969;
    int64_t param3 = 0x10;
    byte last_byte = 0xb7;
    int64_t result = func(inputArray, (len % 256) ^ last_byte, 0x10);
    byte* res = (byte*)(inputArray[0]);
    for (size_t i = 0; i < 16; i++)
    {
        std::cout << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(res[i]);
    }
    FreeLibrary(hModule);
    return 0;
}