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 debian-7-turnkey-vanilla_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 10:46:29 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 33d58cf89c3ca401529cdcb7a747c8d402032dca * md5sum 2466ebc35c2cff5146d1031f032ae4aa 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) iQEcBAABAgAGBQJSXm5+AAoJEIXCXpWhbrlNOfIH+gNCoRFlpNCCuJJzVU+IEaNN qm/E5LRUvlO+4nfdK9iX//ZrfQmyLQ4Ajc5q43DlGHBjquOQ2Np034Up30uCg11p sFewSf7aELUa7DZz8gBYiPI2KZbHTJeXOxIJia22dsVduvddR1pcuxdevgsTu2Fp RyF7emXpcqHBf1fnWMas7yxqbfvTDe1YJXIw9e2DKOz/TRBtIba35i57D10D/yIM jSkQ7JuHjb4zZ7k7nRoTN1BdJflmtFpoC/O0551/8TVUhTu77dXM1RDEL5bu0Eyc wgvFwG26Wg8+xfJOML0afD+1jIWFDXgnOkpmpX/Mut81R0k/qgvs6TMRdl0/h/M= =SZFC -----END PGP SIGNATURE-----