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-lamp-12.0-squeeze-x86.iso.sig gpg: Signature made Sat Aug 18 17:11:21 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 45d14916c4b99ec1f9844a9c028460aeae9aad7e * md5sum c09551094cbb49ef27a53d62ee3defac 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) iQEcBAABAgAGBQJQL8ywAAoJEIXCXpWhbrlNmmkIAMb/b+N0c2u4+gZxkEyMbzV7 gfloEAO5muFdrtX+Q91SXVHor4z7MVn70zc738QpNcGwZcIRyvw6VSRFa7sNS0mR e/jMjAvJYjHfqxOHyUP3fgs6LAAjm3fcozhHhBQn9qh73Xe2e6jhRbfxCyVdX9P1 ua9I82mzJqfABBmSPlZLX33AXHhIbudssNuQf9de3sDw28ZyOK5i0GK3Uy2uimxK XfUaZC5qxG97QONrIsUSgnNmzC19f2QBJQxYfCwg6eHAZ1NBy67k9MbYBZh2V0kt mlKGWHslHp2HYgt9Eu3I3ivzGJm18Ib/vOc3mml54/Q88WrTbUp1zY8u572mFo0= =TWDt -----END PGP SIGNATURE-----