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-simpleinvoices-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 13:47:50 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  d2a50c3c3585cad1eab46a0170161c8df753d9ed
    * md5sum   74c283a27a975a3f47563923ad60c254

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)

iQEcBAABAgAGBQJRgRz9AAoJEIXCXpWhbrlNfDEIANrs10VDt8w8RvoZfbVlPAr9
rMSOivr1LzgdtWEAxVe8JNvQLBwZ8/KcJ6jb6xwsTP+ue0YTrmTtqpA4qtKZHLvs
5HLYV6/tneuJ09ajakXOEGfQlmeLSRPJzRaVacdp81jc9+ZhWDc3PQeC7kBIfr82
XWxpPg8HfjTU2RFtjMJIOPihtXK2LtL3OiKtee0M9bhmYkN3OjoTRaM8HxwqXI/z
WSmkSixez8lCUru9CPRNdiyCczInmM56q8MF/qWaGhvLEwwxcjDw2cm9v2rBpfHr
kkhlePUrZex85aBGI1iqG34q1bcAEB4D0OByTDn1AceoAcm9PET9M2/tjXIWzIY=
=Eh8j
-----END PGP SIGNATURE-----