This package holds public keys for the Cumulus repositories.

cumulus-dev-keyring.gpg    holds key for dev repo:         Cumulus-dev-4
cumulus-stable-keyring.gpg holds key for stable repo:      Cumulus-stable-4
cumulus-release-keyring    holds key for the release repo: CumulusLinux-4
stretch-keys.gpg           holds Stretch release and security updates keys
