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-ejabberd-13.0-wheezy-i386.iso.sig gpg: Signature made Mon Oct 14 17:27:09 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum dcba0e758fddec33a7e354f5fdafeb3a57a6a9e2 * md5sum 958fb93eb1b42a32253ab53c21be1266 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) iQEcBAABAgAGBQJSXClkAAoJEIXCXpWhbrlNStQH/31BSGUPOSzuKQcM+GLb8taE mzb3+Mf7nwXdFkgaVuHrMho+hdPrsK3j5ncjrxSy5yjy9W+EY7L2ighdVJINp/G4 JTimJH6vZRSo5xf7jUD5j6fkPHVckdchIlzB0wh02txjtMVV31u0ohITUgLNd5f0 z2RgxIfu6jdq++SnlwOFExFCKvJ85AwDHaSgPttEfgm7b+Sen+euvuAentugcG2k UlJ3UNptllp5NzzlbFZI5owUK6N6CwaimgBvqMMJk/FkXJ4wMZ4iFkCCRttmwhvH ksXy1fbcd5Qt93d9FNPEUTk/NnzjEnNbn0YS8sxjVJ+JwedGNgIl5S04RnddiZY= =IzVg -----END PGP SIGNATURE-----