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-web2py-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 16:59:14 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 2e6b307c9d30d1bb260141ecb37f15097ce30edc * md5sum fd35c0eba35258785f585852a94c413b 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) iQEcBAABAgAGBQJRrhzZAAoJEIXCXpWhbrlNpW8IAOYxCXzRQ8eqBGYJDfbB3mAG TfYtr7z00RM2adTMQR1GtLHloCOui9U7njpVuQ6bs0Yp10/Jd5bipfo2hPUGpGie HbqsQ0y/HIHd99CJI4BZ4MYIr3eesKrE+5VNrvtQk6wBqprK6FMkyhdri5BOkbEU WBE9mOtYm1dFgC97pvtWcGH1ROhmkREqe2XG1iGN6jri602aXGtGkREcBlcRNDQZ byjOvQHUfHAewSEPebsWJBYqkiNYpT12gHTmdNaR+ILOLcFipMUpdaR9r1Vz/pBp xU93Fcx+N/q0ri2lzncq7H1POuBxtzow6A5x0uKjwryiWb/egYrwbsRNCq0ZAho= =dNHC -----END PGP SIGNATURE-----