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-zurmo-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 10:01:17 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1a084b1de9c5583ccdd85f9d4a2fc5027d64e620 * md5sum 8de9eb1baa0caca8b2a3b1897f45f8d1 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) iQEcBAABAgAGBQJSc3vlAAoJEIXCXpWhbrlNgoUH/1s5hUya7hjeCm9at4cwozP4 2jk62A//XPHCvgzqOu+dfKppWBWdaT+rWpVwMaGaR+yXD1FIhseJuPNvLMO0pSwh JwF5vn/oUcR5O0Dn2H2YiFGx3yqmVc4Bg2QQ8nQnB1+5LLis02ASHoAbSUkM+3xU XKvZCEpVfEOaZw71cYA8PNEVtVd3hWd1tr7jSiWsaJ8smBdseKSioQeHOkfTtl4x dPd87bhkX71hPGXAM+qsKUvk4daafKb2t1j5abz5/CxWkKsCLg5caIOkILaab2X6 HZf3hywxUFk6lB8tNPsGWExtcVtPzWHLm4v1ye2NxUwAgzEBNb1F9FFVLUJrGc8= =0efk -----END PGP SIGNATURE-----