This article outlines using the new rpgp CLI tool to inspect OpenPGP certificates (aka “public keys”)1. The rpgp tool is available as part of the rpgpie crate. This article describes the tool as of rpgpie version 0.6.6. rpgp can be installed with the Rust cargo tool like this: cargo install rpgpie --features=cli). Different views of OpenPGP certificate internals # The rpgp tool can show information about OpenPGP certificates in two different modes: