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-tomatocart-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Wed Jun 5 00:45:57 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c0953757d7ac921009918b70ef6991baf457e975 * md5sum 33adabaf6735063bd60969f777819d8a 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) iQEcBAABAgAGBQJRroo7AAoJEIXCXpWhbrlN0UIIALWg/YUQHLw7kFtC9dqysZ2S 4NrW80l8+97cb2i9CscNVN1S1HT+2jrjH/vUnBbiYyrvLdU2ALbNmIq0EvsNCShO /g9UgUhuyke7JJflaZ8K+9HpJEiRhT1JaqWV58xg0oDrrOLjdTvdxfc/5RnUbYMn gShahZVEZlLbBW3fWVq3U0B+YAa3vSSlsUJrldlnCphmcqZyZijkxHnIBPGw3rj3 m8oeu2/ESbHVVzXGdc8l25+ox+frBb1Wa7XbTEjgkYGFC9TDi7vHaCubwsAaMUgv LVzwCvEG6ju08FuvwiGzrzHuyJ5rClMk7FQEVSotFSXHMMhhYd4Yv2pGnlAt1+o= =FA9q -----END PGP SIGNATURE-----