I'm using an OS X machine, and I've noticed that in the process of setting up an automated backup a long time ago, I must have also installed a Mac implementation of OpenPGP (though I unfortunately don't remember which implementation it may have been).
That means that I now conveniently have a nice set of OpenPGP services available. For example, when right-clicking a file on the desktop, I now have a "services" submenu that includes "OpenPGP: Validate," "OpenPGP: Sign File," "OpenPGP: Import," "OpenPGP: Encrypt File" and "OpenPGP: Decrypt File."
Since these options are available, I would like to do three things:
-- Determine what implementation I'm likely to have
-- Find any existing public key that I may have, in order that I might use it for general, non-backup-related purposes like OTR chatting or email encryption.
-- If no such key exists (which is unlikely), generate such a key. (It's fine if I don't have a CA vouching for my key -- this will be with friends who can verify keys in person.)
Thanks for your thoughts.