GPG

GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP). GnuPG allows you to encrypt and sign your data and communications; it features a versatile key management system, along with access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.

• https://blog.miniasp.com/post/2022/05/11/gnupg
• https://gist.github.com/abtrout/d64fb11ad6f9f49fa325
• https://woile.dev/posts/sharing-team-secrets/
• https://www.ietf.org/rfc/rfc4880.txt