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-lapp-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 15:46:10 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 804a7fd7c4d9ff7577f67f659db0bd20d2e4693b * md5sum 8e7418ef4808a1442100ae2fdb4448bf 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) iQEcBAABAgAGBQJQM606AAoJEIXCXpWhbrlNgY0H/jjRs+y+C25HcLNWFPsRlyyK mgJnwnvnrP6Dd7qOAc2o+mg9SOP3yxhSTIt4AsdYfJtKFDvhnG4AWFRHlSWjEeF/ 942vy4SduWi2yVPeqPt9s7Y9mJ9WaMEtDPU8fWLHFOCAwYr1q6spH3Hb5VUOr3Ma 5Uc7uIsBcL9UYCjCRlGk36LFSWjVBjmbYXernzcNmsS3GLJP3QsTYa7LZG6+kba+ ffc3gEwBLUYNilj5gmlP62dsAra1Q+/iAhcsp7j4jx6s9n6mml76fHYhbRQFIzj1 009cP3vBtlfSf/XvgFj47prLPtaqq+nL6hX7Tl2FDDz9c5k+/9MLIhEoTkTBNKU= =BTxH -----END PGP SIGNATURE-----