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-rails-13.0-wheezy-amd64.iso.sig
      gpg: Signature made Tue Oct 15 16:38:30 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  3dbce1d725ee89e495ad6601d8e9810870cc3ad5
    * md5sum   120341a787cd106060f9fd644d6ed0cf

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)

iQEcBAABAgAGBQJSXW95AAoJEIXCXpWhbrlNa+wIALqVFQDhOblaMWDAyxAm8PhV
36KIaGjp2Cpk5tex2/vp4opswPLqdu6ZYjd2BcmNTPOa+Cc+R/YqXopKR2X9Tm2c
OpgyOHKgl7rg6wN8/JhZgaZKAUb8n55Qpw8c4nRvCryiBzwIkiqNjBrc4CDHjcgR
KW4xaR0Oxg58SfdUZY4EEAwGviBoA4A8AlmaSxfjdYzrWzCmoZIY3kU1Y15wiMwt
DCr3OaUfTKdDHoIt/R2P68Xorjp+lnWgWI9sBnTdudB32BYEcIPp9byWXThWdR+R
D/mhyRSJk8DybwhB1XGNvm8IYsYJyUzDjqXUsZ3qMlBXi9YaHXIQVm41/UyVDQE=
=/hV3
-----END PGP SIGNATURE-----