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-django-12.1-squeeze-i386-vmdk.zip.sig gpg: Signature made Tue Jun 4 20:26:08 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum dd612dbda0647f4a9ef6171e5fa745b41205bcae * md5sum 909dbc223b3f794b8783a8589218096b 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) iQEcBAABAgAGBQJRrk1TAAoJEIXCXpWhbrlNxtUH/0YKGWqthtKc8EAkVQEyRdm5 DOE9+2mb5lhoXdr7cp0EOZl2V8CtVhsnv7BtYT3qWH9LpvMaNJRE5uciN6myq231 0o8KTyMjCgYPLrTY9IAHPSrQE5/9X0WDuJkSZwHVWGFILGNQLo7B/Tyl78XDrf+R zj4VUEZw+paoFPkaWOhiUnzFUyFaFg3L+mhJ0Uc2vbII6wA+vbrlj4ZonP05CSd9 AkPKftf7yAm4laEbnJynTS/4oL1cfWheP8r7Q8NNjBkM+iJBOuR1WneY7pU9sCwM SMeIUv8JkzroC3kpmtH/Ob169cHLeGOdB7hqfno8AfpNPCuLYAt0TVEYGPRNwuc= =cCoC -----END PGP SIGNATURE-----