title: Google Play App Signing and Facebook Login
body: <p>I uploaded my signed apk using the new Google App Signing, and found out I need to change the authentication keys in order for the APIs to keep working.
  The SHA1 is given directly on the google play console, so I used it successfully with for my Google APIs, however Facebook login key is different (28 characters ending by "=" ). 
  Since I don't know the alias of the new keystore created by google, I don't know how to get this  key.
  Hope someone can help.
  Cheers,</p>
  
  <p>Q</p>