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-openphoto_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 17:36:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5affe77a8f6088564df200fcec6f7009c31bdc9c * md5sum 3752e2d04f751bf98167953f3ee1e186 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) iQEcBAABAgAGBQJSXX0AAAoJEIXCXpWhbrlNZZYIAKr2cOKATnCAyperb0Vk/zxx vGUVcApANOnWANoY/+EZaf+YOrr63JyPLeMSx/jQ1ZWFMjq7rWmIpGVuv2jXSmOs uYNBZTCXC1K+cjq+xMUF1WfkbfF45ZKvb02MQNlxNHDTxOXlHRfrqdV6xOkHqKUt jwT9d8eOrv05JHZQSenqZ7K4i+VMIb9jYN86pu3VwpSW1ngqZ4Pv9xorJtcW3p/E +9KmpNeT1vLE9hD54k3W3UwSTcl30svzUX2uVrwEwkmlHkbcleQ+xiAKuAOdAfRl rcxC5sxTa2kxFZETXN434vvKW54x7HqFJxAhczRi5lBBnHt5wdApxwRmeF6UpNw= =SF1Y -----END PGP SIGNATURE-----