Android Keytool v1.0 User Guide
You want to integrate your Android app with Facebook Android SDK, Google Play Services or Firebase.
With Facebook, you need to config key hash. You can use Facebook manual to get your own key hash.
But you need to know command line :(.
Don't worry! With my tool, you can get Facebook key hash or SHA1 fingerprint or MD5 of the certificate without command line. Both developer and production can use, so easy! You only need to install Java Runtime Environment (JRE).
Author: quydm
Download link: https://github.com/quydm/android-keytool
Website: http://quydo.me