SlackBuildsOrg/system/pwman

PWman (An NCurses password management program)

PWMan is a password manager which uses gpg encryption to safeguard your data.
It provides a simple and easy to use command line (NCurses) interface to 
manage, store, search and retrieve your passwords.

The look and feel is based on Jaakko Heinonen's abook.

BEFORE USING PWMAN

While compilation does not directly require it, usage relies on Gnu Privacy 
Guard (gpg) being installed. You will need to specify a GnuPG ID the
first time a user runs pwman, so this must be set up beforehand.

There is more information on the gpg manpage, but you can probably just run

 % gpg --gen-key

and follow the on-screen instructions.