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-ezpublish-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:43:44 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum d98f9c0a6e560681c879e60cffa8e4c0891607fb * md5sum 90e8c4b91db8c4f1d4cd0530ac90ef0e 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) iQEcBAABAgAGBQJQM3RgAAoJEIXCXpWhbrlNNL4H/iBrhwTYe79D67YEtDVZVwiI HUXf/Vo/p+kn+269MDgWKzub5YwwHdyZ/JnqaG3vEEEoAlJ856SGHpFV/8eHePAW pvppSj3sZg++HHFGNNkMgMVx3nGO5eJi+eyXFp2ZZn3aWlbn/SUtweMvrTHze7u4 kVBjD1zJoPcSD1IOduv7ZXTns98Yk+zC5Q8A4o6sZFy+HrPTWQSeHjQDtqq1z7Y/ MKL1E6Sg9oyXMY0gqzQ7JHQWJr5xt4qgUSPHOxWP44uJwS/nBjGVyvKuGg+3LkDz axyyYN21mu8u/G7mvnWRKZyrhC/2PFfR21WkONSNc5P1iSFn2OytPNiFGemptJk= =K3++ -----END PGP SIGNATURE-----