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-torrentserver-12.1-squeeze-i386-vmdk.zip.sig gpg: Signature made Wed Jun 5 00:43:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum cf23367d83440d843caeaa716b490bbc494b2818 * md5sum 7c1f95cfec646d006d5c8f99641a7064 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) iQEcBAABAgAGBQJRromhAAoJEIXCXpWhbrlNyb8H/AlOrlY2dw/ohDeNFWVgo8yt qOnDQO0op3/vacR0TsiSo1Brw3+FAPr2RbU4/03wLQgyRpEi/D6C6xbupHTt8Jxi IEOoFBJddNI9Tub9yvVeB+mV9OFw8AwuwIp4hGhyfrC8lcDNrVtdan7C2sKvOvi5 ztMF29MW0fz4bXsNHuEbRsJYCMPsI4Pf951oyVNuKXE10pbOV4DyIJNOtEy7HYJT 0TcU04cF4TE+FWG03A8y2ichpB+6lrPQyVyjW4O9qXQGP0l9ySKXFBzfGdL6nk0O Jtg4IJMdNQCT3R4kdEq9mVT/Rsg5RKDw9fTbTBCGWHpuu8tA0BvRJ6NZgLK5XJA= =uQi0 -----END PGP SIGNATURE-----