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-couchdb-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:36:37 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum f829f36805d35ea187798ca014b576ff9c62c98e * md5sum f9fa208653bb66e04417c038b2c0dbab 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) iQEcBAABAgAGBQJQM3K5AAoJEIXCXpWhbrlN004H/A0vUSiCurTe/nyLuPeZlQhL clSgV6chcbZ34MCIHUNAkG6oKmSrKyTAtiIkeXF0610q+UF6xfg8WVYgsWEzGluN UDn3+n7LMbAtuSTUQ0EYXE7jyJbIpw0jpoVC1j48ezko0av1V4e6LRa4C4YDCkZK FkS1vGs3JGDPHi83NqxFoQZGuc31YbvuDHq5U9D6xJL0aI+ohDnk8OrmUnJmYpsp Vrn5DXptqzSwPR1cSXhEWKGkZGLyRzW5x/5RBgr4zdWmJ3VtHpUOHaMnks7nNeFf ZM05IHBH5IMwwaQt/+Z66NA1xZu5NdSZDxnRCMPy7AA9P9fnGBa9CJDlw6AuRdE= =V8zs -----END PGP SIGNATURE-----