GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories.
Throughout this documentation we assume GnuPG version 2.2.x as pre-installed in Ubuntu 20.04.
Store your private keys on a secure hardware device, and use it everywhere, instead of storing the as files on disks.
See GnuPG with Yubikey.
Encrypt, decrypt, digitally sign and verify your mail communications.
See Mail Client.