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-twiki-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 10:31:06 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 8563c7eb2826c1362f40f667eb9dd76e28b5c83c * md5sum f41b42cc4773f3d52e13f7b992175c75 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) iQEcBAABAgAGBQJSXmrkAAoJEIXCXpWhbrlN77MIAKzSA0NlUO/yPWgpOGl5VkRO lyFKwbDJJOIOW0VHi+JgnZ3VUZt2tBCon6F4iyjA0FAjMo8VSSxwwDH/eQYPRUZO YWn+DpS//oFjjETL61NEiq03qgCO7n1fm2xNXrk3hJX5sWCnhkycF7F/q1vf8DQU 6P+TrJ7QyXHQmII0jlgQSsnrVmkcA8xsjtdowfAoickkwBDhTDTR2rERZjgFWyfX vCD1s4rO/Edn9hZJyOfxU1lEec+5Vg7gv+hTw1NSU/wcv70m4JrqRx9Ke1bNiaAW K9188WIrd2H6CxTv63adQRZlByT91h0GyfnX6qXQvqIug4Y9nAmKk57VpwH7XgA= =WpUO -----END PGP SIGNATURE-----