// User wants to verify password against stored hash.
 private void PasswordVerify_Click(object sender, EventArgs e)
 {
     if (PasswordVerifier.PasswordVerify(this.txtPassword.Text, this.txtFullHash.Text))
     {
         this.lblVerify.Text = "Verified successfully";
     }
     else
     {
         this.lblVerify.Text = "Verification failed!";
     }
 }