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-moinmoin-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 09:25:16 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 7604f1e9f473a9b7d3903c6b1c8c9b5f3ee334b1 * md5sum e676c3d4423986927dec3d92ecee8ee7 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) iQEcBAABAgAGBQJSXlt0AAoJEIXCXpWhbrlNET0IANzBcQCS3pnCiFvHMw9zIzH7 rltS1eVDn51VH1rYmvhLbiDwVVQ/hLxFMFCtUsuMQImLLKSGFDjWcplF1SUTsubJ 3qni1v3VFjFv1tM917ek7QzE9Q7HWxINbNvEpVIlLTPiZHHZ/EQIJtLrr5qF2HDu TtfNPrMeUjBZ0461Kh0jmBEKXa+lo9KQReQL/31GFPu+Vi36xd3DOmaDU+2I4xo/ ZZZcDSnPCtEBkXIB+4iA97Hw0EUeF6aw6T/zgKmxp0zzV/1NecaQIFbl0nCV9hkp 3A5SgAMtvUnqBn5QkPwONgYon5bZtsaFooV7/cmx5zkTzmZvKtNRZNKBdohk42M= =B1P0 -----END PGP SIGNATURE-----