CRC32_SOFTWARE_SECURITY.cpp

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*   Copyright (C) 2021 by Keowu                                                          *
*   Contact me: joaovitordev@protonmail.ch                                               *
*   www.joaovitor.gq                                                                     *
*   www.github.com/keowu                                                                 *
*                                                                                        *
******************************************************************************************/
#include <iostream>

//__________________________________
// INCLUDE FOR ATHERCRC32 LIB
//__________________________________
#include "includes/ATHERCRC32.h"
//__________________________________

//Test header
//__________________________________
#include "CRC32_SOFTWARE_SECURITY.h"
//__________________________________

#include <locale.h>

bool minhaFuncao() {
    std::cout << "Hi, from ATHER CRC32" << std::endl;
    return false;
}

void minhaFuncaoErrada() {
    int i = 0;
}


void MyClassTest::MyFunction() {
    std::cout << "Class, CRC32 :) WITH ANY TYPE !" << std::endl;
}


int main()
{
    // Set Locale VS2019
    setlocale(LC_ALL, ".utf8");

    std::cout << "Hello World! from João Ferreira(@keowu teste) | Hello, from ATHERCRC32 :) \n";

    // Create an ATHERCRC instance
    ATHERCRC32* ATHERCRC = new ATHERCRC32();
    ATHERCRC32_WARNING* ATHERCRCWARNING = new ATHERCRC32_WARNING();

    // We get the size of the process memory function
    unsigned int iTamanho = ATHERCRC->obtemTamanhoDeUmaFuncaoDaMemoria(minhaFuncao);

    // We write the size for testing
    std::cout << "My function size of" << std::hex << iTamanho << std::endl;

    // We calculate the CRC32
    uint32_t CRC32MinhaFuncao = ATHERCRC->calcularCRC32DEUMAFUNCAO(minhaFuncao, iTamanho);

    /// ________________________________________________________________
    /// <summary>
    ///  Chamadas para as funções desejadas
    /// </summary>
    /// ________________________________________________________________
    minhaFuncao();

    minhaFuncaoErrada();
    /// ________________________________________________________________

    // We write the CRC32 value from the process memory
    std::cout << "The CRC32 is: " << std::hex << CRC32MinhaFuncao << std::endl;

    // It will be displayed and calculated that the CRC32 of the memory block is correct
    ATHERCRCWARNING->AntiMemoryWriteDectLite(minhaFuncao, iTamanho, CRC32MinhaFuncao);

    // It will be displayed and calculated that the CRC32 of the memory block is wrong and has been changed
    ATHERCRCWARNING->AntiMemoryWriteDectLite(minhaFuncaoErrada, iTamanho, CRC32MinhaFuncao);

    // It will be displayed and calculated that the CRC32 of the memory block is correct
    ATHERCRCWARNING->AntiMemoryWriteDetect(minhaFuncao, iTamanho, CRC32MinhaFuncao, true);

    // It will be displayed and calculated that the CRC32 of the memory block is wrong and has been changed and terminates the application
    ATHERCRCWARNING->AntiMemoryWriteDetect(minhaFuncaoErrada, iTamanho, CRC32MinhaFuncao, true);

    //________________________CRC-32 FOR CLASSES OR NON VOID FUNCTIONS

    // Test class instance
    MyClassTest *myclass = new MyClassTest();

    // Getting a pointer to a specific method / function of a class
    auto pFuncaoParaVoidCasting = ATHERCRC->pvoid_cast(&MyClassTest::MyFunction);
    
    // Calculating the size in memory
    iTamanho = ATHERCRC->obtemTamanhoDeUmaFuncaoDaMemoria(pFuncaoParaVoidCasting);

    // Calculating the CRC32
    CRC32MinhaFuncao = ATHERCRC->calcularCRC32DEUMAFUNCAO(pFuncaoParaVoidCasting, iTamanho);

    std::cout << "The CRC32 of my nonvoid function is: " << std::hex << CRC32MinhaFuncao << std::endl;

    // Validating to see if there were any changes in memory in a LITE way
    ATHERCRCWARNING->AntiMemoryWriteDectLite(pFuncaoParaVoidCasting, iTamanho, CRC32MinhaFuncao);

    // Validating to see if there were any changes in memory in a HARD way
    ATHERCRCWARNING->AntiMemoryWriteDetect(pFuncaoParaVoidCasting, iTamanho, CRC32MinhaFuncao, true);

}