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-ushahidi-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 14:06:42 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  c392bd8ee04fc67252190764f0a7f7c68077f4e5
    * md5sum   efdde5cf17ec21af57ffe99241781ba2

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)

iQEcBAABAgAGBQJRgSFpAAoJEIXCXpWhbrlN8uYIAKk9tjOaSzjN7gfquMnX2nY0
KCgjOyocQwYtRs+v1mIJiSzqETMoLaES2VAYVcSmWJzZKdw/tAbUUkhYRvYe8py1
ZiHvvcImOEqHik4lwnUvZfGEgq5Um4cHUMOzrfgSgxYiQFNMaqJ4Lu7w1+Y6D4Je
T0wV/cmZXoNbwBytEgMMYv09cIp7b5eUFmHJ+OyK3gMfEk72+t8SE6Pgc3GHcUmf
T+ZAwTkZjrlwMhwgRtyJ9fi4RIXf3Y5V5nmHMQDYa4yqrL4wFY9m86nkfJFhUL0T
RP3UTbcUfckATtfgTsnmJbcMcOXaD8NksPpzOTuIgG9qo0XAs74N3CinAuIvTUM=
=zL0m
-----END PGP SIGNATURE-----