impass binary package in Ubuntu Focal amd64

 Impass is a secure password manager that relies on your OpenPGP key
 for security and is designed to integrate in a minimal fashion into
 any X11 window manager.
 .
 Passwords and context strings are stored in a single
 OpenPGP-encrypted and signed file (meaning entry contexts are not
 exposed to the filesystem). Along with a simple command-line
 interface, there is a streamlined GUI meant for X11 window manager
 integration. When invoked, the GUI produces a prompt to search
 stored contexts. New entries can also easily be created. Passwords
 are securely retrieved without displaying on the screen. Multiple
 retrieval methods are available, including auto-typing them directly
 into an X11 window (default), or inserting them into the X11 clipboard.

Source package