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-statusnet-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 13:51:46 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  d4a188dcf5711cbd1e0a6f2dbed47519dac7ac35
    * md5sum   3fafcad7fe78b0ba0c0b5a85636b4750

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)

iQEcBAABAgAGBQJRgR3oAAoJEIXCXpWhbrlNcmYIALe6TOt35cc+C3Iy7+EkAkGG
FKXITNq60Mhc5JI7TtnlzUY2rKGVm8lHRRZ0+M8ITvNZ1HW56ejQGZM6BmImcUFP
SKfAbcIP1/6xUq2qH2XnmTUHXtQLIX3oylL191KAMouA72xpmGuYv7SaqUmCP2P0
IUowlMx4tJ/jLNLIBfUbpPY5z75/0EPEY3awCbp+eN2qZxiiXsFazZDndlsHgbvo
Ao5eS6lDUCG4vgQagmxTWkx8LUCcNHVOA+91lP+c3RdNAAzfsJnzPEevy4GryLcI
r82JuTCrbSS9N0ZDngWg+lvPsrqCrd5xK2M/7a94WIwwbKso46PAVU0/7LdC3sI=
=PRty
-----END PGP SIGNATURE-----