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-web2py-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 20:38:30 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 566a33778cdc4f10ce7ed95e734d612a33a8a85c * md5sum 973a58c086e61af758002fc07d403233 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) iQEcBAABAgAGBQJSXae7AAoJEIXCXpWhbrlN6CQIAMfdcRSCgqYQQ+/H0Lv9OM7Q M0azflq0RYn/5CSpyo0abSG4FKn0Vu2LhFJfkBhch0WYvJeHcBG0fxvuavjrMwO7 ITdvSLvgLGdM/h356YL0n1NVHTTFNBbFVwi5HN4aq2+GvOjrdPMsZWcYLGCCZbGN KHa10Gd+m9VMasdHcMkJV2BkK4QUHItDiRNZBFnpW9UO/P6i8XmkVzUNeevvSyzh JV/d4bjgzeINCbSIFRt82NxmLQelikXiwwVIN1lkWN1i7MH4opgO/y8X9CYawzvR XuIztClKSDoWT9BVyrEkW5oRtci3vBnpNeEEPhkkFlqJJ4HRXqby4BBI31dBNIQ= =kLBn -----END PGP SIGNATURE-----