Example #1
0
        private void btnDelete_Click(object sender, EventArgs e)
        {
            string username       = txtUsername.Text;
            string password       = txtPassword.Text;
            bool   userExists     = false;
            string salt           = "";
            string hashedPassword = "";
            string hashControl    = "";

            try
            {
                //user.login-file openen en lijn inlezen
                input = File.OpenText(path + "/user.login");
                line  = input.ReadLine();
                char     separator = ',';
                string[] words;

                //salt en hash bepalen van users in bestand
                while (line != null && !userExists)
                {
                    lineCounter++;
                    words = line.Split(separator);

                    if (words[0] == username)
                    {
                        userExists = true;

                        salt           = words[1];
                        hashedPassword = words[2];

                        byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
                        byte[] saltBytes     = Encoding.UTF8.GetBytes(salt);
                        hashControl = PasswordStorage.HashPassword(passwordBytes, saltBytes, 50000); //Maakt nieuwe hash om te controleren
                    }
                    else
                    {
                        line = input.ReadLine();
                    }

                    input.Close();
                }
            }
            catch (IOException)
            {
                MessageBox.Show("Close the 'user.login'-file before logging in.", "'user.login'-file is open.");
                return;
            }

            if (!userExists)
            {
                lbl1.Text = "This user does not exist.";
                lbl2.Text = "";
                return;
            }

            if (hashedPassword != hashControl)
            {
                lbl1.Text = "The password is incorrect.";
                lbl2.Text = "";
                return;
            }
            else
            {
                DeleteUser(username);

                FormRegister regForm = new FormRegister(lf);
                regForm.Show();

                this.Hide();
            }
        }
Example #2
0
        //NIEUWE USER MAKEN
        private void CreateUser()
        {
            bool containsSpace = false;

            try
            {
                writer = File.AppendText(path + "/user.login");

                //Username controleren en in user.login zetten
                for (int i = 0; i < username.Length; i++)
                {
                    if (username[i] == ' ')
                    {
                        lblNotification.Text = "Username can not contain a space.";
                        containsSpace        = true;
                        return;
                    }
                }

                //Password controleren
                for (int i = 0; i < password.Length; i++)
                {
                    if (password[i] == ' ')
                    {
                        lblNotification.Text = "Password can not contain a space.";
                        containsSpace        = true;
                        return;
                    }
                }

                if (!containsSpace)
                {
                    writer.Write(username + ",");
                }

                //Salt maken en in user.login zetten
                string salt = PasswordStorage.GenerateSalt();
                writer.Write(salt + ",");

                byte[] saltBytes     = Encoding.UTF8.GetBytes(salt);
                byte[] passwordBytes = Encoding.UTF8.GetBytes(password);

                //Password + salt hashen en in user.login zetten
                string hashedPassword = PasswordStorage.HashPassword(passwordBytes, saltBytes, 50000);
                writer.WriteLine(hashedPassword);

                loginForm.userCreated = true;

                //Public en private key van deze gebruiker genereren
                RSAWithRSAParameterKey rsaParams = new RSAWithRSAParameterKey(username);
                rsaParams.GeneratePrivatePublicKeys();

                CreateFolder(); //Folders voor de gebruiker maken
            }
            catch (IOException)
            {
                MessageBox.Show("Close the user.login-file before registering.", "Close user.login-file.");
                return;
            }
            finally
            {
                writer.Close();

                if (!containsSpace)
                {
                    this.Close();
                }
            }
        }
Example #3
0
        //INLOGGEN DOOR KLIK OP LOGIN-BUTTON
        private void btnLogin_Click_1(object sender, EventArgs e)
        {
            userExists = false; //Terug op false zetten voor het geval het nog op true staat
            username   = txtUsername.Text;
            password   = txtPassword.Text;
            userExists = false;

            string hashControl = "";

            //Zoeken naar gebruikersnaam in login-file (om vervolgens in te loggen)
            try
            {
                //user.login-file openen en eerste lijn lezen
                reader = File.OpenText(path + "/user.login");
                string   line      = reader.ReadLine();
                char     separator = ',';
                string[] words;

                while (line != null && !userExists)
                {
                    words = line.Split(separator);

                    //Username-check
                    if (words[0] == username)
                    {
                        userExists = true;

                        //Salt en byte opslaan en omzetten naar byte-array
                        salt = words[1];
                        byte[] saltBytes = Encoding.UTF8.GetBytes(salt);
                        hashedPassword = words[2];
                        byte[] passwordBytes = Encoding.UTF8.GetBytes(password);

                        hashControl = PasswordStorage.HashPassword(passwordBytes, saltBytes, 50000); //Maakt nieuwe hash om te controleren
                                                                                                     //of deze overeenkomt met die wat er werkelijk staat
                    }
                    else
                    {
                        line = reader.ReadLine();
                    }
                }
            }
            catch (IOException)
            {
                MessageBox.Show("Close the user.login-file before logging in.", "Close user.login-file.");
                return;
            }
            finally
            {
                reader.Close();
            }

            //labelopmaak aanpassen
            lblNotification.ForeColor = Color.Red;
            lblNotification.Font      = new Font(lblNotification.Font, FontStyle.Bold);

            if (!userExists)
            {
                lblNotification.Text = "This user does not exist.";
                return;
            }

            if (hashedPassword != hashControl)
            {
                lblNotification.Text = "The password is incorrect.";
                return;
            }
            else
            {
                MainWindow mainWindow = new MainWindow(this);
                mainWindow.Show();

                this.Hide();
            }
        }