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-wordpress-13.0-wheezy-i386.iso.sig gpg: Signature made Mon Oct 14 19:36:38 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 59a2b8d0c6ad32abf9c042157bab702350622af4 * md5sum 6816286b596aec9b96d509706724133c 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) iQEcBAABAgAGBQJSXEe6AAoJEIXCXpWhbrlNvDkH/2XE+N96V96RzZYOT4FY7bcp 18qUNQyx7OZWsx1lBzwSUIvo817e9bKlynD4j3FTSRg/F1LKPA2mvf/jHPXQCf2t bK/tFp7qlOycCRUUMtDzDr748uRMfpDooZ58DVB7gUX7PpGMIk1uZUvVTLBVnZCw Y8jK4UsfsUEkmMwJbob7oBEbVG+SPuPlCbu2Pvk8ReY/LbFNjOZkQPUGWrA4XX4P MfV9oRboHmn2yBOh2yvQXO/QqbtZdp4/xDJP7nqh7uIAWQUgYbqAbvJRZzjj5MdN RT//aD9fps1bjCegOW/1GP5cyaTw6t7i3rYwVpxDxszhkDZmKkiGOBLlyYodlWM= =hcrX -----END PGP SIGNATURE-----