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-roundup-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:15:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 727c35ccb822b45f7bd405ac2076590344cc11e1 * md5sum f4f49f7e41ac1300fc3512863e972fb1 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) iQEcBAABAgAGBQJSXmdAAAoJEIXCXpWhbrlNWeIH/iwGlZe9GAQR3sdvkpxyX/Yz EUAV8BwunM+Fehg6Hhtg8DsyW8bJmU8fZ7GbDv3DJA+/Ys1c8IgBifjXztNPezNc H1ASrM6Dg3SH3YiCRcAaoRZNCxsademF5Zs7LBpsRAfuuoJxMJlh1rZUwXrTWfy3 Zorxs6iymNsl5Zk6N4IszrZdrvfEXGVwadHulpiMyJjk/bXs/5pNqOIUWrVQX8Bp oIXd9k4JWh0E8BSZvQi1vZFBGYyMiWB9/oU7f8zsYeleAuj34jXwhv4aaKAyRnfR I/WqI29wqWZV6rxd/OzTIVqfk7o40m3qYx0U8YMCwZWZUgDuztU9iRx18pPZiTA= =ibO2 -----END PGP SIGNATURE-----