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-appengine-go-13.0rc3-wheezy-amd64.iso.sig
      gpg: Signature made Fri Sep 13 07:33:06 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  859436cc363c0ad9d2897522065ed0d5a2cb4aff
    * md5sum   6b9d85042e7c997b8587f6a3976cc9b4

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 v1.4.12 (GNU/Linux)

iQEcBAABAgAGBQJSMr+qAAoJEIXCXpWhbrlNijQH/RPqVON6eqfT+pcVT5rsgQoY
/MYLE42KdmJi3LKGMYdQFaJRHI1yXS7phIlmOmp79MawJ0deCSGaht1BlGuiQJYI
00i4s9UzY+MInZ2BnJ9/kgwp6bEW1/lrLdqfWAiGR3YCzyZUUzFOlDmoPyp8+0Py
IY9PrlbleUfJiXjcCXYD8bra+KC4R/Qnq0hgQnjKz8ff3Dsx4CwoQbhiG0FJGFhN
gpO+tAZzjsh7KA+5p+h/AHtDJ6qV0kwBQZHZIuC6zSGC6GauyJUmjF/UYNU1QzGz
ZxETF3Lig/F1UsohHNkyItTjhLL/VbSVZdcS+42lAAhf2eHWGGbcx1VZZImJGqY=
=W/5v
-----END PGP SIGNATURE-----