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0前言对网络安全研究的过程中,我们要把握以下五大安全特征,只有从其内容出发分析,才能制定出相应应对措施。(1)保密性:利用防辐射、防窃听、隔离、加密等技术,防范信息泄露。(2)完整性:利用各种手段保证信息在传输过程中不被修改和丢失。(3)可用性:网络可供用户无故障使用时间的百分比。(4)可控性:对信息的传播及内容具有控制能力。(5)可审查性:出现的安全问题时提供依据与手段1网络安全防范体系解决方案1.1物理层安全技术物理安全在整个网络信息安全体系中占有重要地位,也是其他
0 Preface To the process of network security research, we must grasp the following five security features, only from its content analysis, in order to develop the appropriate response. (1) Confidentiality: The use of radiation protection, eavesdropping, isolation, encryption and other technologies to prevent information leakage. (2) Integrity: using various means to ensure that the information is not modified and lost during transmission. (3) Availability: The percentage of time that the network is available to users for trouble free use. (4) controllability: the dissemination of information and content control. (5) Censorship: Provide evidence and means for emerging security issues 1 Solution of network security system 1.1 Physical layer security technology Physical security plays an important role in the entire network information security system, and is also used by other