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-lighttpd-php-fastcgi-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 15:36:49 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 0e2ded1791b25b6ac604e6c1d846552e37ef49cc * md5sum 590f9157fad469f5822244d1a3f60f04 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) iQEcBAABAgAGBQJQM6sHAAoJEIXCXpWhbrlNsmAIAIqESV+RteIndvoS91/niBQy 3MxD/c50jBF3mZS23dzhQwagYSKUDmjR4drk//qQp14FhCpqdlToEAdbq7ifIpn/ 66b6idwaRdF57HH6Rv/uQOySBRXzebWm3521g9eJVVxkHOynshLYK9UeGT/Q8J6l GFdWVEeKiKsUAhNB0npNT4AODOEpaBfi9yISGP37cOT+lWL234Uso7LaxWc+V27q ARZD0d0ZfpwpbNdjquGhTn7NrUgQb9gQDvQkKtND97wuktYheUOUijODGzGKBn3Y bht5o7tBqOMfQK3K17EZAHraEj7mazBDyrdf/MciBqWVXAtFd+gYweCCV6y6z9g= =jLsU -----END PGP SIGNATURE-----