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-piwik-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 13:24:40 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  749d8e5e6178dda3c931bf43ecc32b8894889843
    * md5sum   f09635fd94013a9a2f1d3a0770a992a4

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)

iQEcBAABAgAGBQJRgRePAAoJEIXCXpWhbrlNFLEIANdVnusKeEdxv6dwfHwAT0yp
04ySMoGJWJc94i1H7zTMHOkUC+s7Q9NWXbCBGxkhUmo4oCImB78veUosIACXgzZ7
4k7QNsPA8s3//8JA+J8KVwCpDB4yB44GXN3CyKiyXrkpobC+dPBmj/EmxhvE9klV
zmfIqE3pZRaKM2brn9tnKgJH6k8Gd+Kn6ky2pBRih0LuzNbcCiwZGO1uznrwWjS7
3/AEbZlOAkvvROEVOdXqpjcRWXchInbzFl2Y6mihHwrFrNSPoy/zyqIoVL83OulN
xPY6JHGSLo/hUTOQ1Ai/oVzhlhISLJm43lHJIHQ0aNjvwlNvJB7mtAplN2seVj0=
=OxHv
-----END PGP SIGNATURE-----