An open source implementation is available, based on the udev mechanism.

Novell's Mono project, an open source implementation of the .

There exist several open source implementations of certificate authority software.

For the relay part there is also an open source implementation in Python, here.

An open source implementation was available from IBM starting in 2001.

There are also several open and shared source implementations.

There are plenty of good open source implementations to choose from.

Mono is an open source implementation of Microsoft's .

So we have a large array now of open source implementations.

But here's the protocol, and here's an open source implementation that demonstrates that this is what we're doing.