Android single sign-on

Question

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) {}

            @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".

score 7 · Answer 1 · edited May 11 '12 at 18:32

The correct way to create a hash key

Please follow the following steps.

Here are the steps:

Download OpenSSL from Google Code
Extract it. Create a folder- OpenSSL in C:/ and copy the extracted code here.
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.
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
it will ask for a password. Put "android", that's all. You will get a key-hash.

score 6 · Answer 2 · edited May 11 '12 at 18:36

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:

Enter image description here

Then add the generated key as under to your application,

Enter image description here

And that's how you do it ;)

The above steps works well for me.

@Venky hi, I was having the same problem before 4-5 months and I finally solved it by following the above steps, but I remember that I had changes some code in facebook api but I dont remember it rit now, i ll revert u asap — Maulik J, Oct 19 '11 at 12:01

score 0 · Answer 3 · answered Mar 19 '13 at 10:43

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) {

    }

score 0 · Answer 4 · edited May 23 '17 at 10:30

0

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.

edited May 23 '17 at 10:30

Community

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answered Mar 28 '13 at 07:18

Atul Bhardwaj

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score -1 · Answer 5 · edited May 11 '12 at 18:34

-1

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.

edited May 11 '12 at 18:34

Peter Mortensen

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answered Oct 14 '11 at 10:57

Pratik Bhat

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wel, it may not be an error of invalid key at all, i had a similar error, of invalid access token...saying user might have changed his password... but actually it was a different issue – Pratik Bhat Oct 18 '11 at 12:31

Android single sign-on

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