mirror of
https://github.com/moonlight-stream/moonlight-android.git
synced 2025-07-20 03:23:07 +00:00
Add support for secure pairing and input encryption to fix GFE 2.1 compatibility.
TODO: Needs a LimelightCryptoProvider implementation for each platform to work. Untested (and probably broken) on Android. Needs more testing in general, especially in corner cases.
This commit is contained in:
Cameron Gutman
parent
4a2ee91700
commit
07cf96c5ce
@ -4,5 +4,6 @@
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
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<classpathentry kind="lib" path="libs/xpp3-1.1.4c.jar"/>
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<classpathentry kind="lib" path="libs/tinyrtsp.jar"/>
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<classpathentry kind="lib" path="libs/commons-codec-1.9.jar"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>
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BIN
moonlight-common/libs/commons-codec-1.9.jar
Normal file
BIN
moonlight-common/libs/commons-codec-1.9.jar
Normal file
Binary file not shown.
@ -5,11 +5,15 @@ import java.net.InetAddress;
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import java.net.NetworkInterface;
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import java.net.SocketException;
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import java.net.UnknownHostException;
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import java.security.NoSuchAlgorithmException;
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import java.util.Enumeration;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import javax.crypto.KeyGenerator;
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import javax.crypto.SecretKey;
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import org.xmlpull.v1.XmlPullParserException;
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import com.limelight.LimeLog;
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@ -19,8 +23,10 @@ import com.limelight.nvstream.av.video.VideoDecoderRenderer;
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import com.limelight.nvstream.av.video.VideoStream;
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import com.limelight.nvstream.control.ControlStream;
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import com.limelight.nvstream.http.GfeHttpResponseException;
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import com.limelight.nvstream.http.LimelightCryptoProvider;
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import com.limelight.nvstream.http.NvApp;
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import com.limelight.nvstream.http.NvHTTP;
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import com.limelight.nvstream.http.PairingManager;
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import com.limelight.nvstream.input.NvController;
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import com.limelight.nvstream.rtsp.RtspConnection;
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@ -28,6 +34,7 @@ public class NvConnection {
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private String host;
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private NvConnectionListener listener;
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private StreamConfiguration config;
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private LimelightCryptoProvider cryptoProvider;
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private InetAddress hostAddr;
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private ControlStream controlStream;
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@ -41,19 +48,38 @@ public class NvConnection {
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private VideoDecoderRenderer videoDecoderRenderer;
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private AudioRenderer audioRenderer;
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private String localDeviceName;
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private SecretKey riKey;
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private ThreadPoolExecutor threadPool;
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public NvConnection(String host, NvConnectionListener listener, StreamConfiguration config)
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public NvConnection(String host, NvConnectionListener listener, StreamConfiguration config, LimelightCryptoProvider cryptoProvider)
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{
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this.host = host;
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this.listener = listener;
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this.config = config;
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this.cryptoProvider = cryptoProvider;
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try {
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// This is unique per connection
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this.riKey = generateRiAesKey();
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} catch (NoSuchAlgorithmException e) {
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// Should never happen
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e.printStackTrace();
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}
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this.threadPool = new ThreadPoolExecutor(1, 1, Long.MAX_VALUE, TimeUnit.DAYS,
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new LinkedBlockingQueue<Runnable>(), new ThreadPoolExecutor.DiscardPolicy());
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}
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private static SecretKey generateRiAesKey() throws NoSuchAlgorithmException {
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KeyGenerator keyGen = KeyGenerator.getInstance("AES");
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// RI keys are 128 bits
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keyGen.init(128);
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return keyGen.generateKey();
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}
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public static String getMacAddressString() throws SocketException {
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Enumeration<NetworkInterface> ifaceList;
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NetworkInterface selectedIface = null;
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@ -136,24 +162,18 @@ public class NvConnection {
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private boolean startSteamBigPicture() throws XmlPullParserException, IOException
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{
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NvHTTP h = new NvHTTP(hostAddr, getMacAddressString(), localDeviceName);
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NvHTTP h = new NvHTTP(hostAddr, getMacAddressString(), localDeviceName, cryptoProvider);
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if (h.getAppVersion().startsWith("1.")) {
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if (h.getServerVersion().startsWith("1.")) {
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listener.displayMessage("Limelight now requires GeForce Experience 2.0.1 or later. Please upgrade GFE on your PC and try again.");
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return false;
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}
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if (!h.getPairState()) {
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if (h.getPairState() != PairingManager.PairState.PAIRED) {
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listener.displayMessage("Device not paired with computer");
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return false;
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}
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int sessionId = h.getSessionId();
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if (sessionId == 0) {
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listener.displayMessage("Invalid session ID");
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return false;
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}
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NvApp app = h.getSteamApp();
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if (app == null) {
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listener.displayMessage("Steam not found in GFE app list");
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@ -163,7 +183,7 @@ public class NvConnection {
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// If there's a game running, resume it
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if (h.getCurrentGame() != 0) {
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try {
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if (!h.resumeApp()) {
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if (!h.resumeApp(riKey)) {
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listener.displayMessage("Failed to resume existing session");
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return false;
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}
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@ -185,7 +205,7 @@ public class NvConnection {
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else {
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// Launch the app since it's not running
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int gameSessionId = h.launchApp(app.getAppId(), config.getWidth(),
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config.getHeight(), config.getRefreshRate());
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config.getHeight(), config.getRefreshRate(), riKey);
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if (gameSessionId == 0) {
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listener.displayMessage("Failed to launch application");
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return false;
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@ -231,7 +251,7 @@ public class NvConnection {
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// it to the instance variable once the object is properly initialized.
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// This avoids the race where inputStream != null but inputStream.initialize()
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// has not returned yet.
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NvController tempController = new NvController(hostAddr);
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NvController tempController = new NvController(hostAddr, riKey);
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tempController.initialize();
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inputStream = tempController;
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return true;
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@ -0,0 +1,9 @@
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package com.limelight.nvstream.http;
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import java.security.cert.X509Certificate;
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import java.security.interfaces.RSAPrivateKey;
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public interface LimelightCryptoProvider {
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public X509Certificate getClientCertificate();
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public RSAPrivateKey getClientPrivateKey();
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}
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@ -3,13 +3,20 @@ package com.limelight.nvstream.http;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.Reader;
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import java.io.StringReader;
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import java.net.Inet6Address;
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import java.net.InetAddress;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.net.URLConnection;
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import java.util.LinkedList;
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import java.util.Scanner;
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import java.util.Stack;
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import javax.crypto.SecretKey;
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import org.apache.commons.codec.binary.Base64;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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import org.xmlpull.v1.XmlPullParserFactory;
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@ -17,13 +24,14 @@ import org.xmlpull.v1.XmlPullParserFactory;
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public class NvHTTP {
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private String uniqueId;
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private PairingManager pm;
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public static final int PORT = 47989;
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public static final int PORT = 47984;
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public static final int CONNECTION_TIMEOUT = 5000;
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public String baseUrl;
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public NvHTTP(InetAddress host, String uniqueId, String deviceName) {
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public NvHTTP(InetAddress host, String uniqueId, String deviceName, LimelightCryptoProvider cryptoProvider) {
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this.uniqueId = uniqueId;
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String safeAddress;
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@ -35,16 +43,16 @@ public class NvHTTP {
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safeAddress = host.getHostAddress();
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}
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this.baseUrl = "http://" + safeAddress + ":" + PORT;
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this.baseUrl = "https://" + safeAddress + ":" + PORT;
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this.pm = new PairingManager(this, cryptoProvider);
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}
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private String getXmlString(InputStream in, String tagname)
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throws XmlPullParserException, IOException {
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static String getXmlString(Reader r, String tagname) throws XmlPullParserException, IOException {
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XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
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factory.setNamespaceAware(true);
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XmlPullParser xpp = factory.newPullParser();
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xpp.setInput(new InputStreamReader(in));
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xpp.setInput(r);
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int eventType = xpp.getEventType();
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Stack<String> currentTag = new Stack<String>();
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@ -70,8 +78,16 @@ public class NvHTTP {
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return null;
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}
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static String getXmlString(String str, String tagname) throws XmlPullParserException, IOException {
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return getXmlString(new StringReader(str), tagname);
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}
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private void verifyResponseStatus(XmlPullParser xpp) throws GfeHttpResponseException {
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static String getXmlString(InputStream in, String tagname) throws XmlPullParserException, IOException {
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return getXmlString(new InputStreamReader(in), tagname);
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}
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private static void verifyResponseStatus(XmlPullParser xpp) throws GfeHttpResponseException {
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int statusCode = Integer.parseInt(xpp.getAttributeValue(XmlPullParser.NO_NAMESPACE, "status_code"));
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if (statusCode != 200) {
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throw new GfeHttpResponseException(statusCode, xpp.getAttributeValue(XmlPullParser.NO_NAMESPACE, "status_message"));
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@ -80,31 +96,37 @@ public class NvHTTP {
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private InputStream openHttpConnection(String url) throws IOException {
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URLConnection conn = new URL(url).openConnection();
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System.out.println(conn.getURL());
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conn.setConnectTimeout(CONNECTION_TIMEOUT);
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conn.setDefaultUseCaches(false);
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conn.setUseCaches(false);
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conn.connect();
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return conn.getInputStream();
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}
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String openHttpConnectionToString(String url) throws MalformedURLException, IOException {
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Scanner s = new Scanner(openHttpConnection(url));
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String str = "";
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while (s.hasNext()) {
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str += s.next() + " ";
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}
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s.close();
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System.out.println(str);
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return str;
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}
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public String getAppVersion() throws XmlPullParserException, IOException {
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InputStream in = openHttpConnection(baseUrl + "/appversion");
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public String getServerVersion() throws XmlPullParserException, IOException {
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InputStream in = openHttpConnection(baseUrl + "/serverinfo?uniqueid=" + uniqueId);
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return getXmlString(in, "appversion");
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}
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public boolean getPairState() throws IOException, XmlPullParserException {
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InputStream in = openHttpConnection(baseUrl + "/pairstate?uniqueid=" + uniqueId);
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String paired = getXmlString(in, "paired");
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return Integer.valueOf(paired) != 0;
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}
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public int getSessionId() throws IOException, XmlPullParserException {
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InputStream in = openHttpConnection(baseUrl + "/pair?uniqueid=" + uniqueId);
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String sessionId = getXmlString(in, "sessionid");
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return Integer.parseInt(sessionId);
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public PairingManager.PairState getPairState() throws IOException, XmlPullParserException {
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return pm.getPairState(uniqueId);
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}
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public int getCurrentGame() throws IOException, XmlPullParserException {
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InputStream in = openHttpConnection(baseUrl + "/serverinfo");
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InputStream in = openHttpConnection(baseUrl + "/serverinfo?uniqueid=" + uniqueId);
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String game = getXmlString(in, "currentgame");
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return Integer.parseInt(game);
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}
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@ -120,6 +142,10 @@ public class NvHTTP {
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return null;
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}
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public PairingManager.PairState pair(String pin) throws Exception {
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return pm.pair(uniqueId, pin);
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}
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public LinkedList<NvApp> getAppList() throws GfeHttpResponseException, IOException, XmlPullParserException {
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InputStream in = openHttpConnection(baseUrl + "/applist?uniqueid=" + uniqueId);
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XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
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@ -161,18 +187,19 @@ public class NvHTTP {
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return appList;
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}
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// Returns gameSession XML attribute
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public int launchApp(int appId, int width, int height, int refreshRate) throws IOException, XmlPullParserException {
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public int launchApp(int appId, int width, int height, int refreshRate, SecretKey inputKey) throws IOException, XmlPullParserException {
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InputStream in = openHttpConnection(baseUrl +
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"/launch?uniqueid=" + uniqueId +
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"&appid=" + appId +
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"&mode=" + width + "x" + height + "x" + refreshRate);
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"&mode=" + width + "x" + height + "x" + refreshRate +
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"&additionalStates=1&sops=1&rikey="+Base64.encodeBase64String(inputKey.getEncoded()));
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String gameSession = getXmlString(in, "gamesession");
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return Integer.parseInt(gameSession);
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}
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public boolean resumeApp() throws IOException, XmlPullParserException {
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InputStream in = openHttpConnection(baseUrl + "/resume?uniqueid=" + uniqueId);
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public boolean resumeApp(SecretKey inputKey) throws IOException, XmlPullParserException {
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InputStream in = openHttpConnection(baseUrl + "/resume?uniqueid=" + uniqueId +
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"&rikey="+Base64.encodeBase64String(inputKey.getEncoded()));
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String resume = getXmlString(in, "resume");
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return Integer.parseInt(resume) != 0;
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}
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@ -0,0 +1,325 @@
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package com.limelight.nvstream.http;
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import javax.crypto.BadPaddingException;
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import javax.crypto.Cipher;
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import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.NoSuchPaddingException;
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import javax.crypto.SecretKey;
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import javax.crypto.ShortBufferException;
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import javax.crypto.spec.SecretKeySpec;
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import javax.net.ssl.*;
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import org.xmlpull.v1.XmlPullParserException;
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import java.security.cert.Certificate;
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import java.security.cert.CertificateException;
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import java.io.*;
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import java.net.MalformedURLException;
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import java.net.Socket;
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import java.security.*;
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import java.security.cert.*;
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import java.util.Arrays;
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public class PairingManager {
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private NvHTTP http;
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private PrivateKey pk;
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private X509Certificate cert;
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private SecretKey aesKey;
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byte[] privKeyBytes;
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byte[] pubKeyBytes;
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public enum PairState {
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NOT_PAIRED,
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PAIRED,
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PIN_WRONG,
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FAILED
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}
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public PairingManager(NvHTTP http, LimelightCryptoProvider cryptoProvider) {
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this.http = http;
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this.cert = cryptoProvider.getClientCertificate();
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this.pk = cryptoProvider.getClientPrivateKey();
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// Update the trust manager and key manager to use our certificate and PK
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installSslKeysAndTrust();
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}
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public void installSslKeysAndTrust() {
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// Create a trust manager that does not validate certificate chains
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TrustManager[] trustAllCerts = new TrustManager[] {
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new X509TrustManager() {
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public X509Certificate[] getAcceptedIssuers() {
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return new X509Certificate[0];
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}
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public void checkClientTrusted(X509Certificate[] certs, String authType) {}
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public void checkServerTrusted(X509Certificate[] certs, String authType) {}
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}};
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KeyManager[] ourKeyman = new KeyManager[] {
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new X509KeyManager() {
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public String chooseClientAlias(String[] keyTypes,
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Principal[] issuers, Socket socket) {
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return "Limelight-RSA";
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}
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public String chooseServerAlias(String keyType, Principal[] issuers,
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Socket socket) {
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return null;
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}
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public X509Certificate[] getCertificateChain(String alias) {
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return new X509Certificate[] {cert};
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}
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public String[] getClientAliases(String keyType, Principal[] issuers) {
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return null;
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}
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public PrivateKey getPrivateKey(String alias) {
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return pk;
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}
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public String[] getServerAliases(String keyType, Principal[] issuers) {
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return null;
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}
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}
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};
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// Ignore differences between given hostname and certificate hostname
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HostnameVerifier hv = new HostnameVerifier() {
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public boolean verify(String hostname, SSLSession session) { return true; }
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};
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// Install the all-trusting trust manager
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try {
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SSLContext sc = SSLContext.getInstance("SSL");
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sc.init(ourKeyman, trustAllCerts, new SecureRandom());
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HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
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HttpsURLConnection.setDefaultHostnameVerifier(hv);
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} catch (Exception e) {}
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}
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final private static char[] hexArray = "0123456789ABCDEF".toCharArray();
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private static String bytesToHex(byte[] bytes) {
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char[] hexChars = new char[bytes.length * 2];
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for ( int j = 0; j < bytes.length; j++ ) {
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int v = bytes[j] & 0xFF;
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hexChars[j * 2] = hexArray[v >>> 4];
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hexChars[j * 2 + 1] = hexArray[v & 0x0F];
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}
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return new String(hexChars);
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}
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private static byte[] hexToBytes(String s) {
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int len = s.length();
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byte[] data = new byte[len / 2];
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for (int i = 0; i < len; i += 2) {
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data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
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+ Character.digit(s.charAt(i+1), 16));
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}
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return data;
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}
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private X509Certificate extractPlainCert(String text) throws XmlPullParserException, IOException, CertificateException
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{
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String certText = NvHTTP.getXmlString(text, "plaincert");
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byte[] certBytes = hexToBytes(certText);
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CertificateFactory cf = CertificateFactory.getInstance("X.509");
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return (X509Certificate)cf.generateCertificate(new ByteArrayInputStream(certBytes));
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}
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private byte[] generateRandomBytes(int length)
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{
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byte[] rand = new byte[length];
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new SecureRandom().nextBytes(rand);
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return rand;
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}
|
||||
|
||||
private static byte[] saltPin(byte[] salt, String pin) throws UnsupportedEncodingException {
|
||||
byte[] saltedPin = new byte[salt.length + pin.length()];
|
||||
System.arraycopy(salt, 0, saltedPin, 0, salt.length);
|
||||
System.arraycopy(pin.getBytes("UTF-8"), 0, saltedPin, salt.length, pin.length());
|
||||
return saltedPin;
|
||||
}
|
||||
|
||||
private static byte[] toSHA1Bytes(byte[] convertme) {
|
||||
MessageDigest md = null;
|
||||
try {
|
||||
md = MessageDigest.getInstance("SHA-1");
|
||||
}
|
||||
catch(NoSuchAlgorithmException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
return md.digest(convertme);
|
||||
}
|
||||
|
||||
private static boolean verifySignature(byte[] data, byte[] signature, Certificate cert) throws NoSuchAlgorithmException, SignatureException, InvalidKeyException {
|
||||
Signature sig = Signature.getInstance("SHA256withRSA");
|
||||
sig.initVerify(cert.getPublicKey());
|
||||
sig.update(data);
|
||||
return sig.verify(signature);
|
||||
}
|
||||
|
||||
private static byte[] signData(byte[] data, PrivateKey key) throws NoSuchAlgorithmException, SignatureException, InvalidKeyException {
|
||||
Signature sig = Signature.getInstance("SHA256withRSA");
|
||||
sig.initSign(key);
|
||||
sig.update(data);
|
||||
byte[] signature = new byte[256];
|
||||
sig.sign(signature, 0, signature.length);
|
||||
return signature;
|
||||
}
|
||||
|
||||
private static byte[] decryptAes(byte[] encryptedData, SecretKey secretKey) throws NoSuchAlgorithmException, SignatureException,
|
||||
InvalidKeyException, ShortBufferException, IllegalBlockSizeException, BadPaddingException, NoSuchPaddingException {
|
||||
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
|
||||
|
||||
int blockRoundedSize = ((encryptedData.length + 15) / 16) * 16;
|
||||
byte[] blockRoundedEncrypted = Arrays.copyOf(encryptedData, blockRoundedSize);
|
||||
byte[] fullDecrypted = new byte[blockRoundedSize];
|
||||
|
||||
cipher.init(Cipher.DECRYPT_MODE, secretKey);
|
||||
cipher.doFinal(blockRoundedEncrypted, 0,
|
||||
blockRoundedSize, fullDecrypted);
|
||||
return fullDecrypted;
|
||||
}
|
||||
|
||||
private static byte[] encryptAes(byte[] data, SecretKey secretKey) throws NoSuchAlgorithmException, SignatureException,
|
||||
InvalidKeyException, ShortBufferException, IllegalBlockSizeException, BadPaddingException, NoSuchPaddingException {
|
||||
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
|
||||
|
||||
int blockRoundedSize = ((data.length + 15) / 16) * 16;
|
||||
byte[] blockRoundedData = Arrays.copyOf(data, blockRoundedSize);
|
||||
|
||||
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
|
||||
return cipher.doFinal(blockRoundedData);
|
||||
}
|
||||
|
||||
private static SecretKey generateAesKey(byte[] keyData) {
|
||||
byte[] aesTruncated = Arrays.copyOf(toSHA1Bytes(keyData), 16);
|
||||
System.out.println("AES key data: "+bytesToHex(aesTruncated));
|
||||
return new SecretKeySpec(aesTruncated, "AES");
|
||||
}
|
||||
|
||||
private static byte[] concatBytes(byte[] a, byte[] b) {
|
||||
byte[] c = new byte[a.length + b.length];
|
||||
System.arraycopy(a, 0, c, 0, a.length);
|
||||
System.arraycopy(b, 0, c, a.length, b.length);
|
||||
return c;
|
||||
}
|
||||
|
||||
public PairState getPairState(String uniqueId) throws MalformedURLException, IOException, XmlPullParserException {
|
||||
String serverInfo = http.openHttpConnectionToString(http.baseUrl + "/serverinfo?uniqueid="+uniqueId);
|
||||
if (!NvHTTP.getXmlString(serverInfo, "PairStatus").equals("1")) {
|
||||
return PairState.NOT_PAIRED;
|
||||
}
|
||||
|
||||
String pairChallenge = http.openHttpConnectionToString(http.baseUrl + "/pair?uniqueid="+uniqueId+"&devicename=roth&updateState=1&phrase=pairchallenge");
|
||||
if (NvHTTP.getXmlString(pairChallenge, "paired").equals("1")) {
|
||||
return PairState.PAIRED;
|
||||
}
|
||||
else {
|
||||
return PairState.NOT_PAIRED;
|
||||
}
|
||||
}
|
||||
|
||||
public PairState pair(String uniqueId, String pin) throws MalformedURLException, IOException, XmlPullParserException, CertificateException, InvalidKeyException, NoSuchAlgorithmException, SignatureException, ShortBufferException, IllegalBlockSizeException, BadPaddingException, NoSuchPaddingException {
|
||||
// Generate a salt for hashing the PIN
|
||||
byte[] salt = generateRandomBytes(16);
|
||||
System.out.println("Using salt: "+bytesToHex(salt));
|
||||
|
||||
// Combine the salt and pin, then create an AES key from them
|
||||
byte[] saltAndPin = saltPin(salt, pin);
|
||||
aesKey = generateAesKey(saltAndPin);
|
||||
|
||||
// Send the salt and get the server cert
|
||||
String getCert = http.openHttpConnectionToString(http.baseUrl +
|
||||
"/pair?uniqueid="+uniqueId+"&devicename=roth&updateState=1&phrase=getservercert&salt="+bytesToHex(salt)+"&clientcert="+bytesToHex(pubKeyBytes));
|
||||
if (!NvHTTP.getXmlString(getCert, "paired").equals("1")) {
|
||||
return PairState.FAILED;
|
||||
}
|
||||
X509Certificate serverCert = extractPlainCert(getCert);
|
||||
System.out.println(serverCert);
|
||||
|
||||
// Generate a random challenge and encrypt it with our AES key
|
||||
byte[] randomChallenge = generateRandomBytes(16);
|
||||
System.out.println("Unencrypted challenge: "+bytesToHex(randomChallenge));
|
||||
byte[] encryptedChallenge = encryptAes(randomChallenge, aesKey);
|
||||
System.out.println("Encrypted challenge: "+bytesToHex(encryptedChallenge));
|
||||
|
||||
// Send the encrypted challenge to the server
|
||||
String challengeResp = http.openHttpConnectionToString(http.baseUrl +
|
||||
"/pair?uniqueid="+uniqueId+"&devicename=roth&updateState=1&clientchallenge="+bytesToHex(encryptedChallenge));
|
||||
if (!NvHTTP.getXmlString(challengeResp, "paired").equals("1")) {
|
||||
return PairState.FAILED;
|
||||
}
|
||||
|
||||
// Decode the server's response and subsequent challenge
|
||||
byte[] encServerChallengeResponse = hexToBytes(NvHTTP.getXmlString(challengeResp, "challengeresponse"));
|
||||
System.out.println("Encrypted challenge response: "+bytesToHex(encServerChallengeResponse));
|
||||
byte[] decServerChallengeResponse = decryptAes(encServerChallengeResponse, aesKey);
|
||||
System.out.println("Decrypted challenge response: "+bytesToHex(decServerChallengeResponse));
|
||||
|
||||
byte[] serverResponse = Arrays.copyOfRange(decServerChallengeResponse, 0, 20);
|
||||
byte[] serverChallenge = Arrays.copyOfRange(decServerChallengeResponse, 20, 36);
|
||||
System.out.println("Server response: "+bytesToHex(serverResponse));
|
||||
System.out.println("Server challenge: "+bytesToHex(serverChallenge));
|
||||
|
||||
// Using another 16 bytes secret, compute a challenge response hash using the secret, our cert sig, and the challenge
|
||||
byte[] clientSecret = generateRandomBytes(16);
|
||||
byte[] challengeRespHash = toSHA1Bytes(concatBytes(concatBytes(serverChallenge, cert.getSignature()), clientSecret));
|
||||
System.out.println("Client challenge response hash: "+bytesToHex(challengeRespHash));
|
||||
byte[] challengeRespEncrypted = encryptAes(challengeRespHash, aesKey);
|
||||
System.out.println("Client challenge response encrypted: "+bytesToHex(challengeRespEncrypted));
|
||||
String secretResp = http.openHttpConnectionToString(http.baseUrl +
|
||||
"/pair?uniqueid="+uniqueId+"&devicename=roth&updateState=1&serverchallengeresp="+bytesToHex(challengeRespEncrypted));
|
||||
if (!NvHTTP.getXmlString(secretResp, "paired").equals("1")) {
|
||||
return PairState.FAILED;
|
||||
}
|
||||
|
||||
// Get the server's signed secret
|
||||
byte[] serverSecretResp = hexToBytes(NvHTTP.getXmlString(secretResp, "pairingsecret"));
|
||||
byte[] serverSecret = Arrays.copyOfRange(serverSecretResp, 0, 16);
|
||||
byte[] serverSignature = Arrays.copyOfRange(serverSecretResp, 16, 272);
|
||||
|
||||
// Ensure the authenticity of the data
|
||||
if (!verifySignature(serverSecret, serverSignature, serverCert)) {
|
||||
// Cancel the pairing process
|
||||
http.openHttpConnectionToString(http.baseUrl + "/unpair?uniqueid="+uniqueId);
|
||||
|
||||
// Looks like a MITM
|
||||
return PairState.FAILED;
|
||||
}
|
||||
|
||||
// Ensure the server challenge matched what we expected (aka the PIN was correct)
|
||||
byte[] serverChallengeRespHash = toSHA1Bytes(concatBytes(concatBytes(randomChallenge, serverCert.getSignature()), serverSecret));
|
||||
System.out.println("Re-calculated server challenge response hash: "+bytesToHex(serverChallengeRespHash));
|
||||
System.out.println("Original challenge response: "+bytesToHex(serverResponse));
|
||||
if (!Arrays.equals(serverChallengeRespHash, serverResponse)) {
|
||||
// Cancel the pairing process
|
||||
http.openHttpConnectionToString(http.baseUrl + "/unpair?uniqueid="+uniqueId);
|
||||
|
||||
// Probably got the wrong PIN
|
||||
return PairState.PIN_WRONG;
|
||||
}
|
||||
|
||||
// Send the server our signed secret
|
||||
byte[] clientPairingSecret = concatBytes(clientSecret, signData(clientSecret, pk));
|
||||
System.out.println("Client pairing secret: "+bytesToHex(clientPairingSecret));
|
||||
String clientSecretResp = http.openHttpConnectionToString(http.baseUrl +
|
||||
"/pair?uniqueid="+uniqueId+"&devicename=roth&updateState=1&clientpairingsecret="+bytesToHex(clientPairingSecret));
|
||||
if (!NvHTTP.getXmlString(clientSecretResp, "paired").equals("1")) {
|
||||
return PairState.FAILED;
|
||||
}
|
||||
|
||||
// Do the initial challenge (seems neccessary for us to show as paired)
|
||||
String pairChallenge = http.openHttpConnectionToString(http.baseUrl + "/pair?uniqueid="+uniqueId+"&devicename=roth&updateState=1&phrase=pairchallenge");
|
||||
if (!NvHTTP.getXmlString(pairChallenge, "paired").equals("1")) {
|
||||
return PairState.FAILED;
|
||||
}
|
||||
|
||||
return PairState.PAIRED;
|
||||
}
|
||||
}
|
||||
@ -5,6 +5,15 @@ import java.io.OutputStream;
|
||||
import java.net.InetAddress;
|
||||
import java.net.InetSocketAddress;
|
||||
import java.net.Socket;
|
||||
import java.security.InvalidAlgorithmParameterException;
|
||||
import java.security.InvalidKeyException;
|
||||
import java.security.NoSuchAlgorithmException;
|
||||
import java.util.Arrays;
|
||||
|
||||
import javax.crypto.Cipher;
|
||||
import javax.crypto.NoSuchPaddingException;
|
||||
import javax.crypto.SecretKey;
|
||||
import javax.crypto.spec.IvParameterSpec;
|
||||
|
||||
public class NvController {
|
||||
|
||||
@ -15,10 +24,27 @@ public class NvController {
|
||||
private InetAddress host;
|
||||
private Socket s;
|
||||
private OutputStream out;
|
||||
private Cipher riCipher;
|
||||
|
||||
|
||||
public NvController(InetAddress host)
|
||||
private final static byte[] ENCRYPTED_HEADER = new byte[] {0x00, 0x00, 0x00, 0x20};
|
||||
|
||||
public NvController(InetAddress host, SecretKey riKey)
|
||||
{
|
||||
this.host = host;
|
||||
try {
|
||||
// This cipher is guaranteed to be supported
|
||||
this.riCipher = Cipher.getInstance("AES/CBC/NoPadding");
|
||||
this.riCipher.init(Cipher.ENCRYPT_MODE, riKey, new IvParameterSpec(new byte[16]));
|
||||
} catch (NoSuchAlgorithmException e) {
|
||||
e.printStackTrace();
|
||||
} catch (NoSuchPaddingException e) {
|
||||
e.printStackTrace();
|
||||
} catch (InvalidKeyException e) {
|
||||
e.printStackTrace();
|
||||
} catch (InvalidAlgorithmParameterException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
public void initialize() throws IOException
|
||||
@ -36,36 +62,51 @@ public class NvController {
|
||||
} catch (IOException e) {}
|
||||
}
|
||||
|
||||
private byte[] encryptAesInputData(byte[] data) throws Exception {
|
||||
// Input data is rounded to units of 32 bytes
|
||||
byte[] blockRoundedData = Arrays.copyOf(data, 32);
|
||||
return riCipher.update(blockRoundedData);
|
||||
}
|
||||
|
||||
private void sendPacket(InputPacket packet) throws IOException {
|
||||
out.write(ENCRYPTED_HEADER);
|
||||
byte[] encryptedInput;
|
||||
try {
|
||||
encryptedInput = encryptAesInputData(packet.toWire());
|
||||
} catch (Exception e) {
|
||||
// Should never happen
|
||||
e.printStackTrace();
|
||||
return;
|
||||
}
|
||||
out.write(encryptedInput);
|
||||
out.flush();
|
||||
}
|
||||
|
||||
public void sendControllerInput(short buttonFlags, byte leftTrigger, byte rightTrigger,
|
||||
short leftStickX, short leftStickY, short rightStickX, short rightStickY) throws IOException
|
||||
{
|
||||
out.write(new ControllerPacket(buttonFlags, leftTrigger,
|
||||
sendPacket(new ControllerPacket(buttonFlags, leftTrigger,
|
||||
rightTrigger, leftStickX, leftStickY,
|
||||
rightStickX, rightStickY).toWire());
|
||||
out.flush();
|
||||
rightStickX, rightStickY));
|
||||
}
|
||||
|
||||
public void sendMouseButtonDown(byte mouseButton) throws IOException
|
||||
{
|
||||
out.write(new MouseButtonPacket(true, mouseButton).toWire());
|
||||
out.flush();
|
||||
sendPacket(new MouseButtonPacket(true, mouseButton));
|
||||
}
|
||||
|
||||
public void sendMouseButtonUp(byte mouseButton) throws IOException
|
||||
{
|
||||
out.write(new MouseButtonPacket(false, mouseButton).toWire());
|
||||
out.flush();
|
||||
sendPacket(new MouseButtonPacket(false, mouseButton));
|
||||
}
|
||||
|
||||
public void sendMouseMove(short deltaX, short deltaY) throws IOException
|
||||
{
|
||||
out.write(new MouseMovePacket(deltaX, deltaY).toWire());
|
||||
out.flush();
|
||||
sendPacket(new MouseMovePacket(deltaX, deltaY));
|
||||
}
|
||||
|
||||
public void sendKeyboardInput(short keyMap, byte keyDirection, byte modifier) throws IOException
|
||||
{
|
||||
out.write(new KeyboardPacket(keyMap, keyDirection, modifier).toWire());
|
||||
out.flush();
|
||||
sendPacket(new KeyboardPacket(keyMap, keyDirection, modifier));
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user