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-i386.iso.sig
      gpg: Signature made Thu Apr 18 13:55:41 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  2ff6a8da9b81e73e4822ab4e477dbd13e33276b1
    * md5sum   f19d09269761be4b43aa92af8a674fe0

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)

iQEcBAABAgAGBQJRb/tTAAoJEIXCXpWhbrlN0lUH/0GIC0FZBzQai+SrO1OKOn6M
uQqEBJBV7Z18R6PpL1JzSfqzqAtzfkIgQQkHHZEBJtJpaVBIo+zr9XxWEHBsDQxN
nbSOW/5RdxLeX6DFfjhY8qEkmgfg18CmD4jK6rhSSgmDSA0DC/j57x+JivXMbe+6
tPoygf6Iguo5eZH1YyvRfWfyq/6XF8AoAP6+QUJObFe6saT7baIXLJZ4zp6ncOVJ
6zthw1EDmQTyawV9prt7WhwHwdOCUTviw8FB8TIqzZd9hkOiYAyeHoa+u54+Sy5z
ub6x9cjha/WjMFBRoH22FJQvWvzc6xp2zYRGs2WsurbOS47EmsP1KL533dZllIE=
=e37O
-----END PGP SIGNATURE-----