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-ezpublish-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 08:45:59 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e8898ce04955047c11b0daf07ff4112d03c5f570 * md5sum af91890a3851ebc1a758d50330626efa 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) iQEcBAABAgAGBQJSXlI6AAoJEIXCXpWhbrlNmNkIANWjbRiOJW51X6MTXKvqjsqk xyDLSSj7xUaVfmsvBkLHgTCbkm5xZusK3TmulTdIRn/nhHaqPohQGkmAbFSxZpT+ OAXIhrjtvb7HW0tvfp3HhWeKr1hf9XewbeAt9+2reWhdLVpqW0NmTeVwmbtUJEmn NypFQZK/ivTbSH7c6IG1b2juo+nwRh90MJJX04GlnMKzjPksJzYQL4Ja+WK4UKOp 72qeZICI+JtbDdZj9HH59DKpSEiV0BISj6jP4qtOqQd+O4KBpcUezB+d6vCQW8+/ 3JROh5zCe1gMCRsCXvwSVTj01tQovLiJ5kHHJthj/mrbuL3ZVm1I0HqRXZ6q2TU= =aA8L -----END PGP SIGNATURE-----