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 debian-7-turnkey-lxc_13.0-1_amd64.ova.sig gpg: Signature made Wed Dec 18 11:53:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f48fd61e65d3283f87e5fad67445a910904860c4 * md5sum e4c6d85428ccfd4c5d8f9ef11a826348 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) iQEcBAABAgAGBQJSsYy8AAoJEIXCXpWhbrlNexIH/RJ+X4o1xeoUvJgDSNKM4akh mzqr8qrU1jANIvhDkmM5BrVSOBUtqp9t2Yx07L+8ry3CTrd7HR/bjOC2UH2YRoIW 6wToFAMVWPs6DRmQ0AaZwTVuUrUj6Tw5FHa6Mrmwh8m8b+kRNp/Aj+xj8KkMNznJ vbHlZLohkJCtpkXjOQNp+UnxhUAO29B/xONO4JoOJx5f6C/yXCRNOrkyfvLz2nJo uaoumNfFi8vpNQY8kuWxD6Y9TL/hBv33arQWUQLrm1/iuwuZVZQn/EAibb+Mf7iO RTOb4SP/PaSInT29yU5GzArJ68qHFuNC7lBf03iXvEjaxf7byPmWz+8jFSkW7VE= =MvVa -----END PGP SIGNATURE-----