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-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:56:07 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 9a2f4260c468570761b5c5f160ca745ef1878e63 * md5sum d5b1c8d69576ede38ebf929434ddabd8 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) iQEcBAABAgAGBQJQM3dKAAoJEIXCXpWhbrlNKPwIAMiYfr4eHQqhwKVjeiS6oCix eadohiXQeDwzmAA6ALNq8jDPGNoc9PB76CIVCalSyQaE78ZF0A5cAs3/yQwDTQHZ 306lksXVX5Mam3auIXQftMbU8cnUmoeL8kHUGZaHvebiZsErFTv2zxfojLVm/ncD +X0C3G+1D271D+Wr1SOid8WsMEq56ixYzwSVZFAKPwPtb1C2ncsp0M/Lhv/B7rBc 8osUHFu2jzopDwGZj0YAgYHpZkbUwcJK3AKNnziwYblo+d3L/0Z10l4s3C1jb7ua LPGOkqScR88qySu5g+IuuBDYQP0Sc7ZKKhgJAvqMxYtnIh7MzRWcXo2mOalOVMQ= =OfsG -----END PGP SIGNATURE-----