protected void Button1_Click(object sender, EventArgs e) { if (String.IsNullOrEmpty(TextBox1.Text)) { Response.Redirect(@"\LOGIN\UI\signIn.aspx"); } // HashBasic pBuffer = new HashBasic(); Securehash sBuffer = new Securehash(); //Securehash sbuf; //new Securehash(); Register key = new Register(); string keyA = key.AKeyFsequence().Tables[0].Rows[0][0].ToString(); string keyB = sBuffer.Guid(TextBox5.Text); if (keyA.Equals(keyB, StringComparison.Ordinal)) //if (key.AKeyFsequence().Tables[0].Rows[0][0].ToString().Equals(sBuffer.Guid(TextBox5.Text), StringComparison.Ordinal))//comparison {DATABSEphaseaKEY & Akey} { if (key.KeyFsequenceAll(TextBox1.Text).Tables[0].Rows.Count != 0) { if (key.KeyFsequenceAll(TextBox1.Text).Tables[0].Rows[0][1].ToString().Equals(TextBox1.Text, StringComparison.Ordinal)) { //returns ture when username exist. TextBox1.ForeColor = Color.Red; Button1.Text = "R E L O A D"; } } else { string passphase = sBuffer.Guid(TextBox4.Text); string stream = AESThenHMAC.SimpleEncryptWithPassword(TextBox4.Text, passphase); if ((key.KeyManagerInsertQ(TextBox1.Text, TextBox2.Text, TextBox3.Text, stream)).Equals(1)) { Response.Redirect(@"\LOGIN\UI\signIn.aspx"); } else { Button1.Text = "I -E R R O R."; //@non-updation } } } else { Button1.Text = "permission denied"; } }