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 debian-6-turnkey-simplemachines_12.0-1_i386.tar.gz.sig gpg: Signature made Tue Aug 21 14:41:20 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum b722c83c2dacdd2b0147cbbd1adf195348ff9e49 * md5sum 6dcbe7199bbbd225f9b4d1b68c6f6d2a 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) iQEcBAABAgAGBQJQM54IAAoJEIXCXpWhbrlNnJcIAKguUk2/hl/8PZWPZMzQ4BXd IMrvgNYDG7Vc5/oRrtlOFs3fAWKSxS28aSub6MwD7EidRqZYq3QhnnoUgFEgsgco 8ij6dBYwcWgfQTePs3dnn0TO+kbz1vhLZ8+2ppL3hSjnJYYUJ2tGHgmYTTlh/ecP yU/QI15FPs9TAca0H3IA7aoSiy1h/FfaWWVKAedW0DDPmE2KdJHtFM43lFDQmd+6 lhtK7Th293GnHYj6L1v9PaA3h5N5RiIFDCWGbW6MKkHOAuGG/kfDaQqEZ3Vt0G3h a7qkCAcjHsZLLnD+AO5m16SA0WfDAwHeJ+ohq3u202UrD30AgDF+WiUKAeHiMXE= =OFiz -----END PGP SIGNATURE-----