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-phreedom-12.1-squeeze-i386.iso.sig gpg: Signature made Thu Apr 18 13:36:51 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 7b85157e8849015e845a2e2753de33cb910974a9 * md5sum 1270c5b3b80e2591c2c9bb391988a995 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) iQEcBAABAgAGBQJRb/bpAAoJEIXCXpWhbrlNKdEIALC4AFQDFpOJR6pQcVCOPfh/ cltcltr1412UbPjeFfeEY3gwg9zq+R23kuLwjOe6/cWKOpv7I3ZV67m//vuTY1+6 NtqPhFjfGeKcDaL/SA/PtsUw3PqcN1V5KuFjRSQy+zXsvSCzMfNH6VfJO5FLl+9U 3o1sb1r8spkWCN0Sj5cpnS//h1V0ODPOIfLFF+JZvLYMplpol9oXZgktTO/fTzX2 sThIyb7GEehbkjCbAtv3rO2J6BayrusaezpUdfx0MzNjxEvbMIXkQLLdfanQdaQi c4FKZ22kxNUJchfHvZtF7W2TJ4BjWpZDtWbZKMshr9rR5GzMjRB4DiQoZjIeqzo= =NzPT -----END PGP SIGNATURE-----