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-tkldev-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 10:14:59 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b629181da708774defe8e074070505fe3f4829b3 * md5sum 974f3b717d4934e5a37b906cac01fbbf 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) iQEcBAABAgAGBQJSXmcbAAoJEIXCXpWhbrlNakUIAKNETuTc0DOolRaxYnHqGY2u Dw3MbdUDF9OiNMhfofXCp1U5zaAHuDL45IQA6QDVgnsI6oJV0dqZ+n7rBJOzVOnh EbMN4cJlG0jdZYcO/cWRM7lVDaguis8ZjEqUXz2TJwXn2R9hrlm7KPQttxsewfWP gDGHS9oJ3//3Dhxqcp68mtdpX6gikMQWor5nHblIecUECSGG7rhoNeHPOiHInxRw AZq2vKgdfuMkD9iS37qD6oUSKuDo5SNgbJn4tqqT+HB+tFSwK+aeDbErJpvJzhJc KCjFWUU6P98XPH+n4fb0hH3150F2YfiHJCgtCrlAnFy6bbkzq3+uw+qaux/6KSI= =HE+b -----END PGP SIGNATURE-----