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 $ gpg --verify turnkey-tendenci-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:35:32 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum cfdccfd96581a8aa84776176d8a861b954040ce5 * md5sum f6447b67c48e9b6d1d0facb835547c13 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) iQEcBAABAgAGBQJSXmvoAAoJEIXCXpWhbrlNnWEIAOuFZcn7ODV19/byEWQdXEi5 QBcCFkG6n/J4pZO+UwqKKlf225LkoTbS6uwMfVXriypAOEJM87XyzxIXktDTzzp9 +tPnlXKYQl9kNWejwwCqPZdYLmy07Q6Z94ayUqygijS36Iw5QSs68xuslaeUOPgd KKqtBOvXOBbnjcOwsfJbpsz167TGQlFsrM1UllKxj7K/exde/5aa30Z+TFS5UuSM 6A0IUJwDIvEalwhja89wM6Zck0uFji5puRtKSwvrcT6aEF93TI5eddV8d5vt+7bV d+4UzoTmkmlz8LZtk9bcmdr+zCFnjCvUUAMv6rSY1+vPSlFe8TWi2HjAriY2aF4= =j2ZQ -----END PGP SIGNATURE-----