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-concrete5-12.1-squeeze-amd64-xen.tar.bz2.sig
      gpg: Signature made Tue Jun  4 13:01:50 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  fc63d79f9e6aaa1fbc1a82e478d779c0287289b7
    * md5sum   8ea07fbe790d65d12726a8abab51b3c9

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)

iQEcBAABAgAGBQJRreU3AAoJEIXCXpWhbrlN7goIAJZkdtT9t6uJSniLEfCwlwsi
g4HpLxofX/6WAlJlz2ZToE2tiLWNy+2BXGpmu0KEthvKWRS74PP9dBX0HjVKzI6y
XqtlH0BUYsL8Yzb/0xIVubuD3ZOtERG/914ABYIrcgHX71eA3Y2h6qjPkiDJr3YP
kt/Sn1URutytoMfqhgC8YY2zYuIJEwH58++yAkmf7cr0xs+w+1SF6Q0bogNm6fZI
2WdZQ7mL6Jb7U1OYIFd2KgM4txtpJwfwoR/YmIIlumc5WZrWBwcffwmWNlHPcoXj
U5oGhrNrpRgqrzKH2XAbZXCzFB6hiVFwbsMsCKXE7uEY6FBJGYAbhidHxTcdHJ8=
=JyRR
-----END PGP SIGNATURE-----