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-pligg-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 15:20:53 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a20da4d195ca7719706fecbbe7b72699d6bd8866 * md5sum bdf7a95572589727ade92fcfd13be06e 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) iQEcBAABAgAGBQJRrgXMAAoJEIXCXpWhbrlNYZ0H/AgPidDGoGh39QaGOsEBRfDX ECPvghVQNvs7V3WZXOGDTUi/dMppVlvxWoiRulfYkkolVNMaY9/GO5OQzDiS/8Ti J7LP2avapbDCujlCd1mMNP8R93nkZ/Wya3iUVB/qP/z23SqAihF+RRhXZmztXhvg RhaeYvNkyFhKtKxgoPB8RbUM+M1vk5K5Fc/YXutC5gHa4tkcDgOsL9Gs94tGFFyG es1rJQPe4AAbnyA9kpQBIU9pmo64wZ7JmFjiw6+cfGwviS0esKxQXVDlwyvYlmR4 WlD4KHireTvL4z9EwKgfeyw1R+KIclJNxrLbvckiPLb8p/a7gQl+LyrL0jhe2fY= =wX0t -----END PGP SIGNATURE-----