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-observium-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Thu Oct 17 18:16:17 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0b6a090da519a8bdec3c1ea621d4c52248444ea6 * md5sum f4592752c84b9fbd325a1b28d4edab99 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) iQEcBAABAgAGBQJSYCllAAoJEIXCXpWhbrlNOwgH/1QqZZ/kIvb8yKpxzyaGBud/ kysxkd2V7zBB2JPUEJLS+rzfVJ0R09IgHLPEoFTpYdecCFg9UpBzKXxwzmfMF8Sn gbCmg2o/enHHHpv+CD5U8DFvsxdb2x5+XRFCgYcNfZdKOIRpscpWk8vlebPlhWg1 Aeld0aXEnpnP1Y0lWtZbaMBpoEs3xhL4FqA5ZzbAZE/RIzsPLEHEd451l2yLgeC5 o6LJCM90sDpY+WJ6PWwYy6FVAsXhldo77IQ4mmlaxK0wL5Z8278xIkb2V9ifaSZj l+NmJl87gNEwe7KeQiSLW2ScQNLpKUCdvrW2Dne2vmChiPo30f8BRzpAsu3qZ/Q= =3YMu -----END PGP SIGNATURE-----