I am trying to educate myself on the use of encryption keys and I've been experimenting with this old Linus Torvalds’ key that I found
I am interested to display the usage flags but neither
gpg2 --list-keys 449FA3AB nor
gpg2 --fingerprint 449FA3AB display the usage flags.
The only way I've found to get the usage flag information is this hackish way.
$ gpg2 --edit-key 449FA3AB gpg (GnuPG) 2.0.26; Copyright (C) 2013 Free Software Foundation, Inc. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. pub 1024D/449FA3AB created: 1999-10-05 expired: 2001-10-04 usage: SCA trust: unknown validity: expired sub 2048g/BFF491C5 created: 1999-10-05 expired: 2001-10-04 usage: E [ expired] (1). Linus Torvalds <email@example.com> gpg> quit $
What is the official way to display the usage flags?