private void Btn_create_Click(object sender, EventArgs e) { string name = Txt_nam_create.Text; string surname = Txt_sur_create.Text; string email = Txt_email_create.Text; string nonHashPassword = Txt_pass_create.Text; var data = Encoding.ASCII.GetBytes(nonHashPassword); var sha1 = new SHA1CryptoServiceProvider(); var sha1data = sha1.ComputeHash(data); string hashedPassword = System.Text.Encoding.UTF8.GetString(sha1data); api.insertAdmin(name, surname, email, hashedPassword); display(); }