How could I change the identity of Tor7.0 by Qt5?

tham

Do anyone try to do that with Qt?I search through internet but cannot find anyone tried it with Qt.

Qt version : Qt5.6.2 vc2015 32bits
os : win10 64bits

Following are my solution, but it do not work

Step 1 : Add HashedControlPassword in the file torrc

Go to "your_location\Tor Browser\Browser\TorBrowser\Data\Tor"
Open torrc by text editor
Add following text

HashedControlPassword 16:872860B76453A77D60CA2BB8C1A7042072093276A3D701AD684053EC4E

Step 2 : start tor browser, make sure it is connected

Step 3 : Use QTcpSocket and QUdpSocket to ask tor to renew the identity

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow),
    socket_(new socket_type(this))
{
    ui->setupUi(this);

    connect(socket_, &QUdpSocket::readyRead, this, &MainWindow::read_tor_msg);
    connect(socket_, static_cast<void(socket_type::*)(QAbstractSocket::SocketError)>(&socket_type::error),
            this, &MainWindow::error);
    connect(socket_, &socket_type::connected, [this]()
    {
        qDebug()<<"socket is connected";
        if(ui->lineEditMessage->text().isEmpty()){
            qDebug()<<"send msg:"<<"AUTHENTICATE \"16:872860B76453A77D60CA2BB8C1A7042072093276A3D701AD684053EC4E\"\r\n";
            socket_->write("AUTHENTICATE \"16:872860B76453A77D60CA2BB8C1A7042072093276A3D701AD684053EC4E\"\r\n");
        }else{
            qDebug()<<"send msg:"<<ui->lineEditMessage->text().toLatin1();
            socket_->write(ui->lineEditMessage->text().toLatin1());
        }
    });
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::error(QAbstractSocket::SocketError error)
{
    qDebug()<<__func__<<":"<<error;
}

void MainWindow::read_tor_msg()
{
    static size_t count = 0;
    qDebug()<<"read tor msg:"<<count++<<"="<<socket_->readAll();
}

void MainWindow::on_pushButtonSendMsg_clicked()
{
    socket_->abort();
    socket_->connectToHost(ui->lineEditHost->text(), ui->spinBoxPort->value());
}

Step 4 : results?

If I connect with TCP socket, it always reply me "QAbstractSocket::RemoteHostClosedError"
If I connect with UDP socket, it always give me empty message

Whole project are place at mega, depend on Qt5.6.2 only. I am 100% sure the host and port are correct, because I have used it as proxy to test my ip address on "http://ipaddress.com/".

Eddy

Hi tham,

I stumbled on this tutorial on using Qt with Tor and remembered your question here in the Qt forum.

I haven't looked in it myself, but maybe you can get some information out of it that is usefull.

hope it helps

tham

@Eddy Thanks for the link, but this tutorial cannot solve my problem, it is too old, today Tor need another solution to renew the ip address

Eddy

@tham

today Tor need another solution to renew the ip address

Maybe you migth ask at the Tor developers/ users more details on how to do it, let's say in a pure C++ way.

Hope it helps

tham

The problem is solved, the problem is the password, I should enter the actual password but not the hashed codes, how silly I was.

For more details, please read this post. QTcpSocket works too.