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-e107-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 08:57:48 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 89265d3aa029e02e281dae55075cced2aabb88e6 * md5sum 002dd4aab1e5d2693f834ffa63636df5 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) iQEcBAABAgAGBQJSc20GAAoJEIXCXpWhbrlNIN8H/1Alqt6jkZoPfBKtQrZ3Cj0E Q4df5f/iB+ol6tgLKaJxFAO0Ia6TOGolrUUZJO83dHqWUUbIY16rTj93GEZLxPh1 fZpfaXSrBnyHPcknAtwJ+CICEB7g/juqTr15/cKrYWVJKjY1/IpqVNA1VM1xCEKo yloz3RQ6jct1A4lzIhoCWoPKvi6OuvvoDA8csLa19TSbvLzvMXAqG16XXWx75ITM 3+lR+H7LdZtjpiXHnUlWoy8EEntorYDZyieaud2QWqNfzb3ykUt6nKNr6vLK8oHm 7nPGGfTVGIhTtsYTPieYv/DMSSrqwGMizH1SHWXVcdjF/+pKXzQeMymI/gJOdT0= =ljhJ -----END PGP SIGNATURE-----