Here are the reproduction steps: $ snapcraft create-key test We're supposed to get following result $ snapcraft list-keys     Name SHA3-384 fingerprint - test <fingerprint> (not registered) But, list-keys returns no keys $ snapcraft list-keys No keys have been registered. See 'snapcraft register-key --help' to register a key. Need to register the first key. $ snapcraft register-key test $ snapcraft list-keys     Name SHA3-384 fingerprint * test <fingerprint> After the first key is registered, list-keys can show the non-registered key. $ snapcraft create-key serial $ snapcraft list-keys     Name SHA3-384 fingerprint * test <fingerprint> - serial <fingerprint> (not registered) --- $ snap list Name Version Rev Tracking Publisher Notes snapcraft 3.8 3440 stable canonical* classic