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-joomla25-13.0-wheezy-i386-vmdk.zip.sig gpg: Signature made Tue Oct 15 16:12:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 095b0ada44fbe91f47eb9d4031fc862ab77177f7 * md5sum 836606b29ab5a0bf87cec94b665b7e73 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) iQEcBAABAgAGBQJSXWlHAAoJEIXCXpWhbrlNhoMH/1f3vId8LSfmlPWdofbn+LgI BOqzntdjMzbHIiHda9vPGGCILCdEY/+kEq/bl9JGBvfGsOSu6Gt60reAQ4oZYaYB cVjTmBthi2/9Y1a5H4+rfA/QrRLRUkYLhu2tZ1zPfIfUVnm4m6zImm2NQpYa4J1f 6fal43EM6wSjrh+dO1Gyc1awyvGujq5nJ1u/ePYvujJ1weYz8M62t2qK3d0136Xy jaJqxJQ3Cos7L5FmRLSlQ05mb2qwmfvx8Qun6WOUsQ0nHZsUbEFEmM5WbNA+TE/F MEip6K4+MuR7EXl6Pduq9PVFce8tA65QXj43TqOcOTUdF5iqK3cvWUL1knDp5MY= =H8dt -----END PGP SIGNATURE-----