import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.NoSuchAlgorithmException;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;

public class Prog {

    public static void main(String[] args) throws Exception {
        makeRequest();
    }

    public static void makeRequest() throws Exception {

        String url = "https://test-as.sgx.trustedservices.intel.com:443/attestation/sgx/v2/sigrl/00000010";
        URL target = new URL(url);

        /* Force TLSv1.2 */
        SSLContext sc = SSLContext.getInstance("TLSv1.2");
        sc.init(null, null, new java.security.SecureRandom());

        /* Set up HTTP properties. */
        HttpsURLConnection connection = (HttpsURLConnection) target.openConnection();
        connection.setSSLSocketFactory(sc.getSocketFactory());
        connection.setRequestMethod("GET");
        connection.setDoOutput(true);

        /* Obtain and check response status quote. */
        int responseCode = connection.getResponseCode();

        /* Read response body into a String */
        BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String inputLine;
        StringBuffer responseBuffer = new StringBuffer();
        while((inputLine = in.readLine()) != null){
            responseBuffer.append(inputLine);
        }
        in.close();
        String response = responseBuffer.toString();

        /* Evaluate result and print messages. */
        System.out.println("HTTP response status code: " + responseCode + "\n");
        System.out.println(response);
    }
}