function Verify(sSignedMessage, dataToVerify) {
    var oSignedData = cadesplugin.CreateObjectAsync("CAdESCOM.CadesSignedData");
    try {
        oSignedData.ContentEncoding = CADESCOM_BASE64_TO_BINARY;
        oSignedData.Content = dataToVerify;
        oSignedData.then(function(data) {
            data.VerifyCades(sSignedMessage, CADESCOM_CADES_BES, true);
        });
    } catch (err) {
        alert("Не удалось проверить подпись. Ошибка: " + cadesplugin.getLastError(err));
        return false;
    }

    return true;
}