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-sencha-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 17:37:25 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 59c76d095112b9add14246191a8c98cced4fa7e8 * md5sum 19c28acc14cb17b1b86da350dcdf5759 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) iQEcBAABAgAGBQJQM8dBAAoJEIXCXpWhbrlNXskH/0PDabN2/WblO91MIeTlSe5H ApX++OZhONZDuNw2h7HgKTVe3QxpmwsmpTy/SPZxxyiJZFCvQjMEWSFgSo77W+i1 jlG5rBHEMNAvPfYcE3rz+fGXZn+sBO9HsgFGn0GDIqg/U3zhdVCwyW6DuzsseMv0 x9WqlUtfFJmNag/Fur3vFZVKhO7mblFipa+KDYqFWGG6sjmYE6qMKe/8k6nwhvjF d1WCcR1/z7FOkn3e4UMDLj11WGbz2QR848YAeGukZa6d5JXkc3OfpqJzzTxmpCT+ QpnddpCmRLD1hh8icF/YUYRJXMwXY5wxymTS+2MkRO7RHF31TtTNxJvz2QvuKoI= =1Iv5 -----END PGP SIGNATURE-----