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-codeigniter-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 12:21:11 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  27e4fa6b507ac98f2ca51877ce0509d292a3f864
    * md5sum   c839656bf85086f6c8c2f7f254629107

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)

iQEcBAABAgAGBQJRgQiuAAoJEIXCXpWhbrlNvhMH/0ntYUetAXr7VDydSIeK7+nK
C9mBKdYcPmG+A+KTYGVJ5TZSnGZh94A6G6OY3JHtMwULYOAn+mx0oxnuLymed88e
kiYXnoP+GhbgWRR2zHmLpvaEBHSwmQyoU6pVK4jVWtuzHxutVfaL4ASZiQ9G+HwX
W8FNBsnK/8/8SY9QXKQGYU50gryh8RnNVhD/LHkW9og9DLMbj7zCtWkvjgKn20TT
ap7trJLAN2U2tTwml08OM59AS/AyOAcGMdXd4w5kTdc0iW2hiRdEJXOaQhX54Qdr
D7xBW5fB2Zz1E6FAS/XEBNGIaA1PAeQ3WpytEN5kM6sI24Sy0+4v5IlwgmLks2Y=
=iLrk
-----END PGP SIGNATURE-----