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-vmdk.zip.sig gpg: Signature made Tue Aug 21 11:55:54 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 970219577a3af8385b54d486ac56ae75683cea73 * md5sum 1624ce5768375b155f255a1c9e86e8e6 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) iQEcBAABAgAGBQJQM3c+AAoJEIXCXpWhbrlNy7YH/jVuFjVLoRQm+zpsBmz4B+Zt rtbKXJHAy62KzHObwjEn6gE1Rt95L+Qe2CJ7FKGxcQ94UZsmn8Y6Ljgy34OXzGnO TVzWRmkkhg2fXWbbd+XirZ5GEpxkahedsVW720KUn4CBHP+iqsOXMOtbo/ORsdoE gPVvWH/W7Kj4C6CkAvloIN+UsIaQdDZtKx9TZczDnc4gHjz2cQy3eP1E+/N53/Vi JgM44uv+TDs6/CrFGdShl0klD/966IpJShHFEbxv10Iuc06pjWm6GTBHqtEOdNSs INTHkQTlMKQj+E+tA2uBs6QbCFeLhBbnczYE1TQcEn4xU2RSwD9LqbwzzuCdAS4= =ukar -----END PGP SIGNATURE-----