////databse coonection
        SqlConnection con = new SqlConnection("server=ARETE-4;Initial catalog=test;uid=sa;pwd=;");
        con.Open();
        SqlDataAdapter ad = new SqlDataAdapter("select Name as s from contacts where id='5'", con);
        DataSet ds = new DataSet();
        ad.Fill(ds,"t1");
        String s1 = ds.Tables[0].Rows[0][0].ToString();
        // Setup the encryption object for 128-bit AES encryption.
        Chilkat.Crypt crypt = new Chilkat.Crypt();
        crypt.UnlockComponent("UnlockCode");
        crypt.SetAlgorithmRijndael();
        crypt.KeyLength = 128;
        crypt.SetSecretKeyViaPassPhrase("myPassword");

        // Encrypt Unicode characters (2 bytes per character)
        System.Text.UnicodeEncoding enc = new System.Text.UnicodeEncoding();
        TextBox1.Text =crypt.DecryptStr(crypt.DecodeBase64(s1));
        String s3=TextBox1.Text;
        String s2 = textBox2.Text;
        if (s3 == s2)
        {
            Response.Write("");
        }
        else 
        {
            Response.Write("");
        }
    }