Common
Data diode
Network device that permits data flow in only one direction
Data diode
A data diode is a network appliance to implement a unidirectional network. It is named after the electronic component of a diode, which allows electric current to flow in only one direction. Data diodes can be found most commonly in high security environments, such as defense, where they serve as connections between two or more networks of differing security classifications. Given the rise of industrial IoT and digitization, this technology can now be found at the industrial control level for such facilities as nuclear power plants, power generation and safety critical systems like railway networks. Initially, data diodes were only a network appliance or device allowing raw data to travel only in one direction, and were used in guaranteeing information security or protection of critical digital systems, such as industrial control systems, from inbound cyber attacks. After years of development, they evolved towards combinations of hardware and software running in proxy computers in the source...
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