Patent ID: 6865672

Claim:
A system for securing a trusted computer communication network comprising: a master decision maker unit coupled to the trusted network; and at least one slave communication unit coupled to the master unit by a wide bus connection that has multiple unidirectional communication channels, said slave communication unit being further connected to a non-trusted network; characterized in that: (i) a chip based circuit is provided between said trusted network and said non-trusted network thereby keeping said networks is physically and logically disconnected from each other at all times, by preventing data streaming therebetween; (ii) all data transported between the trusted network and said non-trusted network is transported between said master unit and said slave unit in static form; (iii) all data transported between the trusted network and said non-trusted network is transported through unidirectional communication channels, using a handshake mechanism solely controlled by said trusted side, thereby preventing data streaming therebetween.