openuat.org

Two demonstration applications have already been developed using Relate sensors. The Relate project provides USB dongles that can be attached to any device with an USB host port and that provide relative spatial positioning. That is, devices with Relate dongles can sense each other with a precision of about 10 cm in distance and 25° in angle (in a plane, 3D coming later).

Demonstration application 1: Send it there: Secure file transfer and chat

The first demonstration application allows to create secure connections between devices with Relate dongles. Over these secure connections, file transfer and chat can be used. This secure channel uses IPSec transport connections, and implementations for Linux (with either KLIPS or the native IPSec stack and either the pluto IKE daemon from openswan/strongswan/freeswan or the racoon IKE daemon), MacOS/X Tiger (which uses the racoon IKE daemon) and Windows 2000/XP will soon be released on this page.

For the Linux and MacOS/X implementations, the only requirement is a small change to the pluto/racoon configuration files to include dynamically generated IPSec policy configuration files. For Windows 2000/XP, ipsecpol or ipseccmd (not the typical, but the complete installation!), respectively, need to be installed and the VPNtool binary needs to be available in a system path. To avoid tinkering with the PATH environment variable, I recommend to simply copy ipsecpol.exe/ipseccmd.exe and ipsec.exe to %SystemRoot%\system32. This way, they will be executable by default.

More details about this application can be posted after a submitted paper has been reviewed.