[maple3142]

I think it should also explain why this is secure. It may not be obvious that why you can't just compute the logarithm and get the shared key.

[boris1]

I'm the author. If you are referring to my page, the Developer notes provide all the info you need, and the source code is trivial. I've placed all the encryption stuff in a barebones open source library that you can read on GitHub. This makes the remaining source code in the page trivial.

I don't think I can explain to a layman without math backround why it is secure. So I have kept it simple.