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 debian-7-turnkey-zurmo_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 10:52:30 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d9b6bcc9ea5ca14a2614418ba6bc225de7277947 * md5sum 0515b0dc59ec18f315174afc259bfefc 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXm/nAAoJEIXCXpWhbrlNpkQH/iS5PUTItRXZXQr0UNn+lYx3 0h8/LHo/N+kspfOs5q9J/akrDgZoI/PR9s9Mjz2VRP3/bXAKUUHPps+2hHQy+IzE lZWyD9oa0GpuGpFn6M6LgwZXr9ZN7LjBiu7siRw10N2SgXg/ZrgkQX6We6P85kjz iLO3MHyIgAeA8TmtFPFOgGHiujqy4LrUrw5Wf7F3KBqrlaDkXAjniyg6++2klcRd yYgX0H0nbP+wP8llUnhYntH1eFPSLUq7t1kJKNaXQuHNiqfaq3yLyo1/A3IjLfe1 5NPI/rYqo5+DIBLuaEvYSxByAwPfUgZH5Xl3S9r4SIRJR785LQOmUzah9856/d0= =2uZA -----END PGP SIGNATURE-----