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-mediawiki-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 21:58:35 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 67fc5c444f8ecd411c7f2cc7b08aad7d0053b706 * md5sum a99cedd2f36f4bf99ba8743785384cf6 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) iQEcBAABAgAGBQJRrmL7AAoJEIXCXpWhbrlNE0YH/01kPir1b2eZPT2Z5WX98IR8 EIIcm7QDEyAQXctDAgnbnBRxyo7hz3MuV9HqjRoaZloJ2bKL6BsP6yPeIRtL3JA8 tsX/5gc1/9uWp/DzpzSJ8Ap9nJzjgUA6j1y4iU1Uqo+mcxoIGUpLbSm3igHmXEgZ DpGxMPfVNCQusErr6DsGrOdAKPjTq6mnSdRfUUIGf/Re0MX3TYBpnMznbWmSLC5l VDc1Ix1Mbo2wtcqJ6gKkHZcxxGAXtN/nT3yhbyvZXz9BG7K8k3X9V7dF8F81HmIl EswM6JuVbgS41Kf221pQslcH3vclaiE3wvIUBR4AC06gAwSRJugMbaed8rOkrrM= =pURn -----END PGP SIGNATURE-----