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-torrentserver-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:40:39 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum f339c6ba5b78808d500c34694a1ad455587ac263 * md5sum 9da99b237e308be4d7a7e4466c029ace 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) iQEcBAABAgAGBQJQM7n4AAoJEIXCXpWhbrlNzUkIAJpNCPbLbAilCYQAhxocQAqz xqHz3hMgIgI2Kc+IVxLWg/bJHEpt4zVGCVn1TGVCe0QgRV/tPwAigCo38hyXHMBY 5hipvcHu4mlpG5GDx3/9Mzq8krVBzH5/LmP77VrR01rQf2EodT61OW+n7KdSt7q7 TFyAxd8EHk7Z0JvIxPrlzFSwxQA5YnehjOGqr4YhEEyFk/xS4+6JZgsHkKPrTCHL L6Wm4buBrBg5JpCdqrePjm04dMjXuSt9FTKq12uymKbVRxVRv+xCGYfETZj7TJCs DPleRwCNiHG8dTMl9YovefogAakUGyCqjes0sL9jfZdUJqghw8Jh8C1MNGPM3Z0= =94F8 -----END PGP SIGNATURE-----