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 <release@turnkeylinux.com>

    $ gpg --verify turnkey-typo3-12.1-squeeze-i386.iso.sig
      gpg: Signature made Thu Apr 18 14:18:07 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  a2fed6052ce2ff7cffdf87efe85e19e02e1feec5
    * md5sum   f35c8221340e5686865a3a185cc99815

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)

iQEcBAABAgAGBQJRcACSAAoJEIXCXpWhbrlNSk0IAMJkcwJWAqHsZWKUtSYZYvPx
bFuRtmtu9qbeih4BECk2blrRoH/x7ZtUA38HOf2qhAhl3L5x+MV9o6VTlqO/qCMv
q8E4TMKZFWGY4GNt9Yt5D1i6uVfvLGXqeky/2uAzYO8IgFmuquLPtemleDFVbH1X
gsvtn1DltNVbXfXmoINPBrZV/CmPFnO7V4h3RzuOhaU5a0CfMaVKoG9XxfSpjns7
/jTfvKYJfhAZ6n6yuaMcSIHRa+9+CMk79t4SyT3z1nOYrFuxc8kUEIjaaqVDRwlK
4GiwjSiObYRzKRv6RQRnnTdrifAfJAfRUZ/UpMEKGidydrtAhoLMwlkU1Pyp5DM=
=66GL
-----END PGP SIGNATURE-----