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-elgg-12.0-squeeze-x86-vmdk.zip.sig gpg: Signature made Tue Aug 21 11:39:59 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 90e239879ddacd7d27d14f8bd74d9d64d489584e * md5sum 671aba242dd441c87317e783bebc5626 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) iQEcBAABAgAGBQJQM3OEAAoJEIXCXpWhbrlNh7wH/R509sZhEL/wEpLLnEFhPAb6 xsVnNmGGK5L8LjqPAmzs2QJGfHNgjfCdSxDYZDPXY1xFd6vvNPyHD8Rpe6RXRowR Biyh6da3tEuztJbbKz69IFFct+c0dJM56SvRy28O/QGMKiM/oKPf9FmMcZUizyO9 th2CGmX+zEI/t9YhLYRfuET/Ca/1Jcmg8bx2wcfd9/st7z5wdZbekxxNh86KUYHR LjFAecl6CqwdOgpOjERk6pgWg1bCOOsxGsEnTuw0ii1aiDcb3S8W2qXbRCOoi8fN XrrLOAWx7zdYV+eCohne97FjRp4gril9ZfwoW2UjhSBZAMc67R2MQl8XPat/HQ0= =tgUn -----END PGP SIGNATURE-----