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-nodejs-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 09:34:58 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum cb69a17c9ffbafd8bdf12736f06b486773964b71 * md5sum 55049dc2978545cbfc467b90705dd749 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) iQEcBAABAgAGBQJSXl26AAoJEIXCXpWhbrlN4jsH/3MlJJli5XlVYuEqMIckW3kw v8x7UG2taIMe+lQbNfKujS9x5bMWIYHM0vuff9GuKXl59HRWsSAscfrrajJ8/Fkk u766ApTKLSDqEvF5cz5wzEe1k+GgXawMMjVplguhUelLw9nzmudA5utNCbK4Eo3I GraH07YLvf9CTlyEz9JbNq985nN4jJJNIpPVacBqNE2Vn35tIiIQEDWgWVjyVMbG X1TIoSmTCFgtU3aRTqo/5MlI66Eqty7XzuYb//7yAC2DrKh9RRb01hh/eGulGieI mklIPzKmQvl38YyGsQYAVoZmyoVbDmy3qXW2C6M0xw6GfBKzLHNOV+x/aIkdkAs= =l52k -----END PGP SIGNATURE-----