I’m trying a sample app to configure the Google License Service LVL in Android
following the instructions found HERE
I have just tried to configure a base app with the included code
public class MainActivity extends Activity {
private static final String BASE64_PUBLIC_KEY = "mykeywithoutspaces";
// Generate your own 20 random bytes, and put them here.
private static final byte[] SALT = new byte[] {
-00, 65, 30, -128, -58, -57, 00, -64, 51, 32, -95, -45, 77, -117, -36, -15, -11, 32, -64,
89
};
private TextView mStatusText;
private Button mCheckLicenseButton;
private LicenseCheckerCallback mLicenseCheckerCallback;
private LicenseChecker mChecker;
// A handler on the UI thread.
private Handler mHandler;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.main);
mStatusText = (TextView) findViewById(R.id.status_text);
mCheckLicenseButton = (Button) findViewById(R.id.check_license_button);
mCheckLicenseButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
doCheck();
}
});
mHandler = new Handler();
// Try to use more data here. ANDROID_ID is a single point of attack.
String deviceId = Secure.getString(getContentResolver(), Secure.ANDROID_ID);
// Library calls this when it's done.
mLicenseCheckerCallback = new MyLicenseCheckerCallback();
// Construct the LicenseChecker with a policy.
mChecker = new LicenseChecker(
this, new ServerManagedPolicy(this,
new AESObfuscator(SALT, getPackageName(), deviceId)),
BASE64_PUBLIC_KEY);
doCheck();
}
protected Dialog onCreateDialog(int id) {
final boolean bRetry = id == 1;
return new AlertDialog.Builder(this)
.setTitle(R.string.unlicensed_dialog_title)
.setMessage(bRetry ? R.string.unlicensed_dialog_retry_body : R.string.unlicensed_dialog_body)
.setPositiveButton(bRetry ? R.string.retry_button : R.string.buy_button, new DialogInterface.OnClickListener() {
boolean mRetry = bRetry;
public void onClick(DialogInterface dialog, int which) {
if ( mRetry ) {
doCheck();
} else {
Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(
"http://market.android.com/details?id=" + getPackageName()));
startActivity(marketIntent);
}
}
})
.setNegativeButton(R.string.quit_button, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
}).create();
}
private void doCheck() {
mCheckLicenseButton.setEnabled(false);
setProgressBarIndeterminateVisibility(true);
mStatusText.setText(R.string.checking_license);
mChecker.checkAccess(mLicenseCheckerCallback);
}
private void displayResult(final String result) {
mHandler.post(new Runnable() {
public void run() {
mStatusText.setText(result);
setProgressBarIndeterminateVisibility(false);
mCheckLicenseButton.setEnabled(true);
}
});
}
private void displayDialog(final boolean showRetry) {
mHandler.post(new Runnable() {
public void run() {
setProgressBarIndeterminateVisibility(false);
showDialog(showRetry ? 1 : 0);
mCheckLicenseButton.setEnabled(true);
}
});
}
private class MyLicenseCheckerCallback implements LicenseCheckerCallback {
public void allow(int policyReason) {
if (isFinishing()) {
// Don't update UI if Activity is finishing.
return;
}
// Should allow user access.
displayResult(getString(R.string.allow));
}
public void dontAllow(int policyReason) {
if (isFinishing()) {
// Don't update UI if Activity is finishing.
return;
}
displayResult(getString(R.string.dont_allow));
// Should not allow access. In most cases, the app should assume
// the user has access unless it encounters this. If it does,
// the app should inform the user of their unlicensed ways
// and then either shut down the app or limit the user to a
// restricted set of features.
// In this example, we show a dialog that takes the user to Market.
// If the reason for the lack of license is that the service is
// unavailable or there is another problem, we display a
// retry button on the dialog and a different message.
displayDialog(policyReason == Policy.RETRY);
}
public void applicationError(int errorCode) {
if (isFinishing()) {
// Don't update UI if Activity is finishing.
return;
}
String result = String.format(getString(R.string.application_error), errorCode);
displayResult(result);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
mChecker.onDestroy();
}
}
But unfortunately the app crash on start with the error
10-03 01:10:20.309: E/AndroidRuntime(2145): FATAL EXCEPTION: main
10-03 01:10:20.309: E/AndroidRuntime(2145): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.market.licensing/com.example.android.market.licensing.MainActivity}: java.lang.IllegalArgumentException: java.security.spec.InvalidKeySpecException: java.io.IOException: corrupted stream - out of bounds length found
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.os.Handler.dispatchMessage(Handler.java:99)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.os.Looper.loop(Looper.java:130)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.app.ActivityThread.main(ActivityThread.java:3687)
10-03 01:10:20.309: E/AndroidRuntime(2145): at java.lang.reflect.Method.invokeNative(Native Method)
10-03 01:10:20.309: E/AndroidRuntime(2145): at java.lang.reflect.Method.invoke(Method.java:507)
10-03 01:10:20.309: E/AndroidRuntime(2145): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
10-03 01:10:20.309: E/AndroidRuntime(2145): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
10-03 01:10:20.309: E/AndroidRuntime(2145): at dalvik.system.NativeStart.main(Native Method)
10-03 01:10:20.309: E/AndroidRuntime(2145): Caused by: java.lang.IllegalArgumentException: java.security.spec.InvalidKeySpecException: java.io.IOException: corrupted stream - out of bounds length found
10-03 01:10:20.309: E/AndroidRuntime(2145): at com.google.android.vending.licensing.LicenseChecker.generatePublicKey(LicenseChecker.java:121)
10-03 01:10:20.309: E/AndroidRuntime(2145): at com.google.android.vending.licensing.LicenseChecker.<init>(LicenseChecker.java:92)
10-03 01:10:20.309: E/AndroidRuntime(2145): at com.example.android.market.licensing.MainActivity.onCreate(MainActivity.java:100)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-03 01:10:20.309: E/AndroidRuntime(2145): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
10-03 01:10:20.309: E/AndroidRuntime(2145): ... 11 more
10-03 01:10:20.309: E/AndroidRuntime(2145): Caused by: java.security.spec.InvalidKeySpecException: java.io.IOException: corrupted stream - out of bounds length found
10-03 01:10:20.309: E/AndroidRuntime(2145): at org.bouncycastle.jce.provider.JDKKeyFactory.engineGeneratePublic(JDKKeyFactory.java:92)
10-03 01:10:20.309: E/AndroidRuntime(2145): at org.bouncycastle.jce.provider.JDKKeyFactory$RSA.engineGeneratePublic(JDKKeyFactory.java:396)
10-03 01:10:20.309: E/AndroidRuntime(2145): at java.security.KeyFactory.generatePublic(KeyFactory.java:177)
10-03 01:10:20.309: E/AndroidRuntime(2145): at com.google.android.vending.licensing.LicenseChecker.generatePublicKey(LicenseChecker.java:112)
What is wrong?
In the line
private static final String BASE64_PUBLIC_KEY = "mykeywithoutspaces";
I have set my real public key
The Key On Google Developers console has changed when I have edited some profile information on Google Account.
I have update the key and everything works now.