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-vanilla-12.1-squeeze-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 17:02:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d50f32187ad84944a8ed4600ebd7dc3bfe5097fd * md5sum 746ebbe623936cd2ae6b3af49b220677 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) iQEcBAABAgAGBQJRrh2BAAoJEIXCXpWhbrlN2oUH/3XLbfHn/3MP4MEe1a3v1G56 Wq+2Of8ctT6z86r/1NxyA5Ycr1+2mkEFLZ1FCFn+1Q2Hvum4pqzjsWIVj6jOlH/6 UBkyq6M3XH48UcxczDQPA5KpFF7iK0XP7kSfbPNHjNiJuliVC80LhQQkkDgmVYSZ NJfTlPL1VBEoyRZHXIcqDbqT7il5L12Lo6PnltDWZvJ9+bpggzfc3Ux0K5kIVxv9 PWBk5rnW6On4nz1YfAvbG7Sgo+hCLZghNrSYec1sjb7SeQo4gOM+xsvozdmKdYeM Lf7q0EEm8qo+eMI3Ph6NlZ433viZ1xlIQZk4o4rMX0+HOejHsq2xuXxTIdyEhQs= =xagL -----END PGP SIGNATURE-----