function Authenticate() {
    try {
        var cipherText = $("#source").val();
        var password = $("#password").val();
        var plainText = sjcl.decrypt(password, cipherText);
        var d = eval("(" + plainText + ")");
        $("#title").text(d.Title);
        $("#date").text(d.Date);
        $("#content").html(d.Content.replace(/"/g, "\""));
    }
    catch (err) {
        $("#password").val("");
        alert("Authentication Failure");
    }
}