People check in fake private keys to git repos all the time for testing. My own tests have private keys too. They're just sample, unused, publicly advertised pr

People check in fake private keys to git repos all the time for testing. My own tests have private keys too. They're just sample, unused, publicly advertised private keys I found online. They're useful to make sure your code is working end to end with some private key. EDIT: For example, here: https://ospkibook.sourceforge.net/docs/OSPKI-2.4.7/OSPKI-html/sample-priv-key.htm https://ospkibook.sourceforge.net/docs/OSPKI-2.4.7/OSPKI-htm... or here: https://docs.vmware.com/en/VMware-NSX-Data-Center-for-vSphere/6.4/com.vmware.nsx.admin.doc/GUID-BBC4804F-AC54-4DD2-BF6B-ECD2F60083F6.html https://docs.vmware.com/en/VMware-NSX-Data-Center-for-vSpher... or: https://www.ietf.org/archive/id/draft-bre-openpgp-samples-01.html https://www.ietf.org/archive/id/draft-bre-openpgp-samples-01...