Information Radiation Leakage And Suppression Of Computer Network Equipment

In this paper, from the perspective of the computer network electromagnetic information security, the computer network anti-radiation leakage of information technology research background and the development of the situation at home and abroad were depicted, and the dangers of information radiation leakage of the computer network on all the critical areas were pointed out. Then it analyzed the work mechanism of computer network equipment such as:switches, network interface cards etc. and interconnection cables. In conjunction with the circuit philosophy of the switches and the network interface card, the signal characteristics transmitted on interconnection cables and the identification theory of red and black signal, the red circuit of the switches and the network interface card and the red signal on interconnection cables were determined. On the basis of these, the radiation emission mechanism of the red circuit was studied, the red circuit radiation emission models were established, the simulation of the red circuit radiation emission was analyzed, the suppressed methods of the red circuit radiation emission were proposed, and all of these methods were built the models and simulated to prove them effectiveness. In the end, we structured a test system, the related tests of the switches and the network interface card were completed, which could verify the correctness of theories and methods.