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-lxc-13.0-wheezy-i386.iso.sig gpg: Signature made Wed Dec 18 11:32:46 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e1ab72ad0dbce381f389942a30965134b51f9975 * md5sum 5b05dc9c9987e2fda7cbe5c5fec95743 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) iQEcBAABAgAGBQJSsYfXAAoJEIXCXpWhbrlN5vEIALsC2+7ZO83bNa18b/YdOhOo MfVhbPXo7OVf6QtoQLLPo2dFJRLuCaiAfLi2Ipg3RbJYHGcyFtN2KCFvqivvLWIg Ro9H7h806M9/lBCPDaWZwxb08ztHypGLs5sBLv9y7b7fGu1A/Dum2d4oWqcD6lNl zTkLJrtxZcTRaXK0i9jSQiUZiQQsMc4pf9gXkTJT/eGuT4URCuuzxULfaS9BT9Us we6wT9VNzKLrVqFnJuzTHne4CahHlad+H2S4mBK5/pBP59lgrNPKo7+x4oy7zujH slAf+1dGttsvfpytorkE7T7+/9393USO67cDWmTBewJnowBX9avY69VKIbFrNJY= =l3lr -----END PGP SIGNATURE-----