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-piwik-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 16:26:27 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 53387cd8dea2bf98f8b9610da2df48b0d4f1788d * md5sum ce8bb1fde7fe45b32a80dbacb0c7f812 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) iQEcBAABAgAGBQJQM7aqAAoJEIXCXpWhbrlNiXIH/05VNDBrrrXaOs83RqzqGHDW 0i0+TbGbk5Lqq0pYk+RPO9ELtjDmEDJKxZQSXG5RwdoWUFuBx6R5W0lR47bnWgFU fH/WzmRwOBFDJIZBoKF4KbgYCT9NKMZctteXwEj10HNuf3krxxQofkERjR4efmNB jN3W6yWRmoMiAiRrn4rBjzAyx92g9C1tgMBSFRQCaoZRRps+CT6qtdn6CTEPvYsm ANp26LtcX6nyaLO0VEuFOz5DxbzH6yY7mhu93pjtYrjQ/kKSohYiyoWjspMMFBFA MTZeTzC5Y5B7VPmbYXb2si7GR8uK9KqAh7B+N3R3oQLfDzdKiSwH6Hs+ybnI2VY= =6CXd -----END PGP SIGNATURE-----