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-lapp-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 08:49:39 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0f11cc323e7eeca71aeb1aff1ee1c100b2cdfcc5 * md5sum 00459825c4d8d610384b422bbdf6ebeb 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) iQEcBAABAgAGBQJSXlMaAAoJEIXCXpWhbrlNXDsH/jn3SrxbuxeLnu8XAVG/o6kJ uiug2Fz6cdBS3Y0TPiZRNaX2m9ezySxABmoJvHwf1wUN7fkEn4eE2gdGwoSKqMiY 9X9sbygQiyPOqvYrbQxQnBjwJ8qeTsV+PRWAPjPMkmiqrQMrYwkvd42t9JjPUVxp qK4yy+RwkXGGdcytHHx5en3xW8Jc2DUuNL1kCcTt9E0v9FznGuyyOkh3SRutUMgU CW2U4geU7hiFSfw8V6l5H6TtMOjsc+H/YSn/plVxOQNMcvDmo+b4LosWsrn/wvzk VfXV6gVDJLIygbY6Y+Sc1OwrErA8agpogzuZz6pAz3p7K385v2kOtR/cXp7UBss= =EBDM -----END PGP SIGNATURE-----