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-magento-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 09:10:50 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 996d1b50ac7126df1054be07ba492bd562089471 * md5sum f08f8bde8846d687af710f41e460c1e1 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) iQEcBAABAgAGBQJSXlgRAAoJEIXCXpWhbrlN1NwH/jnicYTVIUBmUVamKYbeCoGQ zy/tkIuJGLyNO/sX/a57GGs/1579+2WuXJMXsxtwmYL4Pm3Bffe7REIRISJlQPaM bK50pa8cmBndojnYuEmNH1bW91znzXlbD2HV7PdSrT74q1dL8v4Zj3DUNrWs/bcQ ap+907mTT7xIiuN9ZSTlaSsiUs0zsjR5pUIaCaggyje/9fyi5cE+Wnsd/eB7dVKX 0nicBuG6dNjaSPVm4Nt97vXFfD2e8lGZOAGT4CvUhG/ENtL6Wq/EXH0hVtYhGILE DDBBdk1N7FdkURKg90vijDIUllRGQMzDDTj9AjkKfCatX81r8qeMn0O/dfazVOA= =yi0Q -----END PGP SIGNATURE-----