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-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 20:39:08 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 791d6402b5e6b4c21057c1ebb8467d31e68d0c11 * md5sum 9ef0f1e9ce9822e4e49f585ffc968f1d 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) iQEcBAABAgAGBQJSXafiAAoJEIXCXpWhbrlNq4kH/RIHfvvykn3BUINopEYOgeC/ YCRI8N2krzz/tOYWU3quAsItTM1oPXsXTxUWYs7HSy4eZRZSKekjoM07Lri6u15u PDtuPRrCGfU+DiqgkgCDqzvudMAFxptqEmo6PO0fhpT52vSwpcvCAovPphpvh8uW RYcRY3hxDWgaGX3aw9QUAh08R8XbtVL49XvTIE+KDEtYGsXrhYI3TFzHTQBBsubb fuYVfkiIWyozRi2oL4aa4/JwKxv8zS37pKYg+ZdCyYUTgIqtYSRUv4FNtylXyz3H Bf2GMDrpiHe+c7RopaVLN0a4Y2HB6J7yqgjKRF9ugv3wlN59j0qlMkvZ/zwTfIY= =PnvJ -----END PGP SIGNATURE-----