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-plone-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:10:50 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 83d52ee6a1d4208da5dcd6f6910350794b5344a5 * md5sum d975ca2d2111030c4bebc706a8428769 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) iQEcBAABAgAGBQJSXmYhAAoJEIXCXpWhbrlN+pMIAJdqs0DlxqdJIKpjXogVbUZx u7KPI/moT9nlAf2GETtr9iNrUejHZdLUHNEYWP80AZGQbOkWsHnbZqyHH4eaWEp6 0N+qxyslZljNu4gqu1yvY3OFLykqrYHDK5VzGdGFUtqIcqThCO22zNjIdPo4P1gC B5gHGwN3Z6Wp8E+EriI9J4MDbpSwxNTQZBcejQpol6LY8kEBeNHyosj5mi6eoYtT 7bbD4YAmM7Y/V6WL+qPwGOuT4KQ7ykUaa7XJiStFE84FHvQ8aLr+5xgre+Yd85Vh qdHKrquw8mYIGkbhFGIUaEI6/Wl6dPhHk9sDOsX7GI5w0eMDK/2yN3U4lVWhMyg= =6URO -----END PGP SIGNATURE-----