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-projectpier_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 18:19:45 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum be3a8aa77a812b0e92f821bfc19a7c87ebe5f8b8 * md5sum 170f74fc1574a318b40cd464a7262572 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) iQEcBAABAgAGBQJSXYc7AAoJEIXCXpWhbrlNJMEIALuVNoA7/4wkVKSEpkH5rdj9 D6rnrptdvKwyxgD0Gd+2uUpp0KsSo5CrPDuv3fFmr10SYqFaH9sirNGOMRIdDfNR xwbXpDkfAE8wh1IYyzU1AfAxSkYumU9CvMv5GDCRormiM8i7AX2VjgO6vyFSXdW7 y+uT01QlnUPs/zzWpkaDhW5Lyj+SZMW/4cyofjqfbVqN/C+h8y1+gPzzz/kLVpdp aa38zpKLJL7AdU7B5Jcmi3AayK/nAvQFUiOrAM+wh3cVjHtV584JPyPNWVYkDCRO Mk13OEP6l67QGT9WIczRVQZYgxB5hGSbjjtGt3rM70oyGb6BOMIWkDQXpC5zYRA= =EKbf -----END PGP SIGNATURE-----