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-e107-12.0-squeeze-x86.iso.sig gpg: Signature made Sat Aug 18 17:01:53 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 486b0b7b97707cfa6add278c7ef31225712d3db3 * md5sum f0a8b1c7483ac49d221fce785d2b8a19 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) iQEcBAABAgAGBQJQL8p3AAoJEIXCXpWhbrlN+BkIAIV71T4V5jEVbIkdLFACMKMP 9AEYhKNb2RSxgDgnJrEdbmz3JBrnCicVI4D2X5JhBCmH8L4PsqjD/1SAVPgk8oqn U8OO7nHIlxnjtZP7nRi9Ernqw5lO2vKUe69c2fByjeqnvzTGbwsgtMcP0YiaigAu eIKvEhLn/CFbrxic/7Wo9MKU3pujZItwN5LE35IA+iSAFo6ewSGrsrBACrrNlbB2 7nUVRsPGDNeiWThR2SfeKOTq0dqQpvOjeUqFBy6fs+MiIxTUBNdO0Wy1jpY+Yx2u ISEfkDrB2H0GFHm1nIwCS94bMyLYbu5rjc5/ljAZsl9/M+TpSYgl6WNwHIpccmY= =KAiS -----END PGP SIGNATURE-----