PasswordBox and MVVM

Question

We have the following scenario:

1. MVVM userinterface where a user can place his password (actually a PasswordBox)
2. Server that shall do some wor

Answer 1

depending on your understanding of mvvm (in my way code behind is allowed in some cases)

so i create a PasswordBox and also a named TextBlock

Xaml

codebehind

    private void pwBoxUser_PasswordChanged(object sender, RoutedEventArgs e)
    {
        var pBox =sender as PasswordBox;
        string blank=pBox.Password;

        //to crypt my blank Password
        var sMD5 = myMD5.toMD5(blank); //implement your crypt logic here
        blank ="";

        MD5pw.Text = sMD5;
    }

like you can see your password is save and you can easy bind to it