How to create a Facebook key hash?

Question

In the Facebook android tutorial we are told to use following code to create a key hash:

keytool -exportcert -alias androiddebugkey -keystore ~/.andro

Answer 1

One brute force option is to just go ahead and try to share something from your app. My app then displays a Facebook page with the key it is trying to match. Then you can just copy this key and put it in your Facebook 'Settings' page on your developer Facebook account.

Not ideal, but in a pinch it may be helpful.