This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-postgresql-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 15:26:23 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d4a4df1448fd55033236d09cb393f271a3466cba * md5sum 1f76a875d7b1717507d633b4b4a42032 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrgcYAAoJEIXCXpWhbrlNvSEIAOPJ5Fxo3wHqMVqGYgl9um07 xvxKa/XiTabKx9SB7JFPMvV2j8WdrU6jk15ypchl5YInfKqcpYXI3FcE9mowJm/p VvctDBXRZ1rehlLn4UH2YRXVrDn0ZetqILDaWjNz4hKqeaFSWLRXYu9+ej1acFnT kuDhF/J/f1fY+6+VJgbMn35sh0ID1RGFLhJoGquxvbW9qih6Tp7vL75Lfb7ipB/K WDS4YWDFAm3zlLlJv7wl39KzEV2YSWtjNf/7Knny6AVG6KaGnAbGqUMayNQcX6Lq jGA4tdxBmfItSgmVJd5wPueL2jORfCpNnPStewBZcUO9NtHqYvQbSSlfHSSHF3Y= =OXe+ -----END PGP SIGNATURE-----