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局部网的保密一直为人们所忽视。但是,随着局部网保密产品的问世,这种局面正在改变。据报道,Bridge公司于一九八七年底推出了它在网络保密通信领域的第一批产品:CS/50通信盘(Communication Server)和保密NCS/AT网络控制站。这批耗资二万零
Partial network confidentiality has always been neglected by people. However, with the advent of local area network security products, this situation is changing. It was reported that Bridge Corporation introduced its first products in the field of network security communications in late 1987: CS / 50 Communication Server and secure NCS / AT network control station. This batch of cost 20000