This is an advance of the previous idea. The idea was a one way chaotic encoder, it is very fast in one direction as it is analog, repeatable, but simulating it requires a million cycles. The security derived from the idea that a cheater had to simulate all possibilities and find the code while the sender need only simulate for the message.
This one advances that by having both parties share their reverse simulation numbers, then encrypt with both of those. The receiver has a message encrypted with both party keys, but it can factor its own out very quick, then use the reverse simulation to back out the other party native key. The attacker problem goes up exponentially, the secret channel complexity goes up linear.
The main takeaway,m we can make secure smart card and it is not expensive.
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