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-mambo-12.1-squeeze-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 14:23:07 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum af561581511f644537811a51837c2a49180cb351 * md5sum addd74d82b1f121fce7ef0dd4da3816b 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) iQEcBAABAgAGBQJRrfhEAAoJEIXCXpWhbrlNzT0IAL3Om7kYsbmcVXV1hQWsxKNc dScMUbZPte2/dFgz47k2MzzZ3rx1sNwsL0hMhWrvRS8FMR+l20h3bTnb4MDUldmx LurY5B1kjxfsAbL6i7gdLpz4IQqewRNNi+FHLRegWjj++0dyWKDt+W0UL/7rD7ly 0/MuAadqHjUOgrQbyxtoz/cvffOF2Az8iHi40rk52AH4wxe5arJDOsUFWksXmsWw uoKp9hgYxN1a0RkDqPBLymqPr7xzyVJiHS4llGKE4xB4icoARv2qNPmkp8lhrXA4 BgiR1A5WKM3oajbUcmJY6dtDWZRiQ4cag1cFuxvFYnR39ZKnXd6rZxc0m3I3csU= =cyEo -----END PGP SIGNATURE-----