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-sahana-eden-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 12:25:50 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 6b9907dd9aa1c1d00d9071225efb486d772de897 * md5sum deb2dbd43197569930c49fd7b051e339 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) iQEcBAABAgAGBQJQM35AAAoJEIXCXpWhbrlNVxkIAMnoyk7YPLYrlDRquLiHH1sp OLXw6joLdKioQNEpd8l5nWECbRlbqEpeKd1SlCVnRcen3nbsFGgLJKafxzDBWw7M LZZs2OGJR9ZMahRFTFg0IzXkUBWCusx+OGTan4nbiHSHfI2Rw5B8dws/RmEYISdd OAGl86Wj4b0zgs80XTHw9R57SExHB6CQr+QzBR2BreNFT0tnW531m1Zz5KBVOhJs xa31nx1oxULAuMtQRaCsUWFDJGei8YgeazSeR3OASuxqxIbByPqg35DeZhed7+YM O0rGqY+A3CSGegTNBBQQ64FjZrnn+yOOhOVmYIQz/XwRYBoClMt4dVO8mOd00So= =nmJK -----END PGP SIGNATURE-----