Android single sign-on

I'm getting login failed invalid key error while using an updated version of Facebook. If I delete it - it's working fine..

What is the correct way of creating a hash key?

I know that there are a lot of questions and answers for single sign on in Android, but none helped me to implement single sign-on in Android.

My code:

public class Main extends Activity {
    Facebook facebook = new Facebook("XXXXXXXXXX");

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        facebook.authorize(this, new DialogListener() {
            @Override
            public void onComplete(Bundle values开发者_运维知识库) {}

            @Override
            public void onFacebookError(FacebookError error) {}

            @Override
            public void onError(DialogError e) {}

            @Override
            public void onCancel() {}
        });
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        facebook.authorizeCallback(requestCode, resultCode, data);
    }
}

Then I generated a hash key using the command

keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64

Also, I am having OpenSSL and given the location of OpenSSL upto openssl.exe..

After I hit Enter it is asking for a password and I gave android as the password. Then I got a key and filled in "My Application".

The correct way to create a hash key

Please follow the following steps.

Here are the steps:

1. Download OpenSSL from Google Code

2. Extract it. Create a folder- OpenSSL in C:/ and copy the extracted code here.

3. detect the debug.keystore file path. If you don't find it, then do a search in C:/ and use the path in the command in next step.

4. detect your keytool.exe path and go to that dir/ in a command prompt and run this command (in one line):

   $ keytool -exportcert -alias androiddebugkey -keystore "C:\Documents and Settings\Administrator.android\debug.keystore" | "C:\OpenSSL\bin\openssl" sha1 -binary |"C:\OpenSSL\bin\openssl" base64

5. it will ask for a password. Put "android", that's all. You will get a key-hash.

First, you need to create the hash key using the below code according to your path.

C:\Documents and Settings\Logistic103>keytool -export -alias androiddebugkey -keystore "C:\Documents and Settings\Logistic103\.android\debug.keystore" | E:\Downloads\openssl-0.9.8k_WIN32\bin\openssl.exe sha1 -binary | E:\Downloads\openssl-0.9.8k_WIN32\bin\openssl.exe enc -a -e

Then enter the password:

Enter keystore password:  android

Then go to Facebook developers and login into Facebook. After login goto your application and click on edit setttings link:

Then add the generated key as under to your application,

And that's how you do it ;)

The above steps works well for me.

better use this piece of code

  try {
        PackageInfo info = getPackageManager().getPackageInfo("your.package",
                PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("YOURHASH KEY:",
                    Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }
    } catch (NameNotFoundException e) {

    } catch (NoSuchAlgorithmException e) {

    }

Please follow this link Generate correct Hash Key

You can generate Hash key problematically for both signed and unsigned app. And copy this key from your Logcat.

Well, this might not be an answer, I guess you checked Android, the Facebook SDK, SSO, and You.

Are you using Windows XP for generating a hash? Maybe there lies the problem.