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-movabletype-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 14:33:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e34ad04a254891152c0530022e69d275d7c6973f * md5sum 6ea9afb0c1bc4c7b2d597605330f5423 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrfqtAAoJEIXCXpWhbrlN7XQH/1RAz5U5GIZDcy9szONLS/wi D/g4lm8GxGNo94IbQ0BkdnWwIWO1hJNxH0gaEvDHNqzHs+rQT8s43XeJrv1w2ric j7Zkpf45cr2uzq2VtJBVXGzfFzIXMsw2J1dkWrEakphc9bp27uYSopi4BhQWjIeS maInxIxjwwICOvC8LFRHYk5LY8KqqzvP3HCYua4tOpe8FWS80H9qAZ+pq/T6Ju8p cSlF2srKfwqecrVO7nCbWBZ8dTviIQdMJp4TMQg3cKsDhMzd/bXUOZpEspOxDeAC Pe5iu0U5bxwRwXzDWxu5pL/YKWF0fIP/7SdYKa7wnKwQt/blTClQDq0EhDO+Elc= =GTrQ -----END PGP SIGNATURE-----