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-sencha-12.1-squeeze-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 16:28:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b256d46f04264269fb57459163f986570dd3cb54 * md5sum ffa9d50d10e7ed64ccd358edc28afadc 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) iQEcBAABAgAGBQJRrhWDAAoJEIXCXpWhbrlNNI4H/1F04R198Uf6Q+9/pVlok0Kv vLTBV8eYkTLlY3iK5iydgnwpCe8ZFzn1bQiix7wWUj3ZWyBgRexYKuQMlBeK4O+j POLP3jVAs5qBGxsjajBRgXQeRja1edugliEtVVUSsIcIs7QabThTwzu+3bmG7fn6 /UmEV5bUczVTG3fh3ILg/Qs+C1i+T1bkxtp8ZnlxDXTHQeW1wTMXNYxi+oKtGI5w wRBQTE+5tp84+ct4X6QeUHsVEgRHKim8TxpkRxJELYuvtTA8O4CUsWE37EdZAHww SeInkHf0n7Elqvf1u5Wz91MuNI1DEm+cILaTa+ePIeVkRe6CLggNkvRMen9FEfU= =0wxs -----END PGP SIGNATURE-----