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-appflower-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 15:14:46 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 3f232f3c9b39ec9bebcaad6e4ee0638257a65e16 * md5sum f23cb813cf9e6854937a07ee5d6fd749 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) iQEcBAABAgAGBQJQM6XcAAoJEIXCXpWhbrlN3nIH/0l7ff3Bz9GfCf5KJHlL6Rk5 0UhbdQseGnFrMzN9iGs7G6rmEAz11Ox7BDFby4HEr+btrDatYqvdTHHJySh8KnVc TOxojQECtk0H8TO3wybVidk6ogHXQGT1MSEWYwV7pUPBNFSfm8cBtfcVkWvjfMpr N5hjbsLx8rH7uZ7gdJue3icfsNc7CRdlVY9HwzQE4mMkXib6ZrrcyR8SnIspAapS 7wlcMH4s6C22p0ZbgaVurac25lvUB3F6lxn2QjVukQyrgT3qrUc9eHJtb+U4bqDK QgjlWnoU9qgpt0am7DE6X2hHh0WiaHZmRHHH36Wzx/Q1Cjx5PT5IjDTx06iRdmA= =FsqA -----END PGP SIGNATURE-----