Terminal User Interface for GnuPG.

It aims to ease the key management operations such as listing/exporting/signing
by providing an interface along with the command-line fallback for more complex
operations.
It is not trying to be a full-fledged interface for all the features that gpg
provides but it tries to bring a more interactive approach to key management.

Homepage:
https://github.com/orhun/gpg-tui/
