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-rails-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 15:54:52 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 37547ca9f3598e4fa7d02213fa15ed3dc0415c7a * md5sum eed8555c21eac9b9c518634ccedabd7e 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) iQEcBAABAgAGBQJRrg3BAAoJEIXCXpWhbrlNn48IAM4T/ZgRTDa1MwIvHVsX1D6s irGDEnvQvhYygee+AIc2dpXJEYPsm5w74BPXZ0RWNlefVxHM5+MU+ftPaXn/i17t WW8Qmlakg3qO7LSoTCX5w9nfJZ5uJdUAtrYsuFR8khHcRPyvUvVnjjLpKTKOcM5J lJ3MyXACPdYiv4HMznp5ba3ehgbNQLeMVJjS4QQs2uAat5tRg72VJYIFsASiRPs1 2qCIGjt/DJ5bwfMU2HwOTRelB3jeqfOf8lx7QL/6yO/lonOlxSCwTQd46oMiqFmH ot3Go1Yp9D5HrEm/efUDo8tR7WisL8piLIyRPP9G5Y1MXe/TYo3jjcaReAN+Ygo= =pbhR -----END PGP SIGNATURE-----