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-moodle-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 17:16:53 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d379bf66543a978a066b34425c57aeb87ad011f2 * md5sum 0b5d0fb89857ee92b12f3758b400bd92 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) iQEcBAABAgAGBQJSXXh6AAoJEIXCXpWhbrlNSXgH/1c24sOZW4pI/64FU69kfPyf FbC/dZSGIksTcJ092a5YdQZ/5Itb5a3Ryjr5CJkdaVNmf+FEmsa+jGH4LMlne4Oz fEiWZaXUc4qkf8fQ3qaq/6cAO1HYYSrV//tPqGVKajV144Cu7X1VTVspW9fHgTvQ RpngO7gELFtgOO8irZf412YAULLLymLFjX3Aqez99E4Iof6wX0zfDkOxGFsexjLY MQXK+OAJXTS30k4arYKk6mUoxbQgDPJVf5jMbI6FN3hlw82d4sbzU7KP9CZ7U4pO bNXQwoqAmEuu8VqmA9geMVRnyqo8YUqprAELmf6UgTJOZvlKRTv74PGXkjNBu3o= =LexZ -----END PGP SIGNATURE-----