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-mediawiki-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 15:59:22 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 8c7ea3542b397659de4208398d88c28f37fea832 * md5sum 19b0331b67a1fef89c1e2bc721ff840a 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) iQEcBAABAgAGBQJQM7BOAAoJEIXCXpWhbrlN1EMH/RhG0wMAF0hV/sjphQTOZy8g nchs3H0wzc/cGnYq2UtF8YJYAMEKW5811lF3HaeTauwvo0qdf/mf/xhruefYGXbn M5UuQwpWh2oJM9+2stoD6SanrB6XzcwXQdqpfuWAICirKWDrKTUk58o4NXkDPzZ6 fDHf6mE0TTh8uaxhTnlhWHMn6+Oj8cvaxmpPSLDKDkNVEDP0FMfjblsAFFg1+jsc kbnplJmHmV0RO76bPNJw+QOVTXnjITugfXvdX50tM2dt+HQgLTk+hrVhRy3hVSuU hEH9eiMD9H1WBGT1S2gY/9RSTW7JMLklNKts0lKzQD2g2XATbJ6sD7wHpT7IsX8= =giqJ -----END PGP SIGNATURE-----