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-lamp-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 13:41:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum aaf210bc11d93e9c3b73016a257d2ed43f328f66 * md5sum 5f9ac24cc997ac5689726cb984208069 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) iQEcBAABAgAGBQJRre6HAAoJEIXCXpWhbrlN5pMIANLfKzmnwi6tByvJUY3IOxs8 S+zcxI+CojzC6IM72Djg732IyPfsVW32kZ6alOmYLqYXrnD3yE7wX+DhaFBt/91r qswqt4fexxL4Fhv5lLuAe7D3AAJOzKLVRQg5qam5ZeVKwCvPUS3iPrENHEnCI/hp ubhyfc+lhDroeeMIaAKDVNaAh/dKLGxOw/gC+drOwFtN20IkMvS+DfpzUxd2GSZZ 577zU69JXVf7y/oCbRR1EZOAXRBmJas1WbhQuSmCoOsAB6bHzbpmyA8LsPj//eDO 8Arlo2GPpLJ4oD9ps/GkS4r82TmJVzByGum6QwAhE9V1aXUXLCeP069A8vfO72Q= =7h/e -----END PGP SIGNATURE-----