网络保护质量研究

随着人们的网络安全意识不断增强,迫切需要一套可度量、可量化的指标来评价系统安全保护的质量.作为网络安全领域的一个新概念,网络保护质量(Quality of Protection,QoP)能为不同的用户和业务提供不同等级的安全保证,满足日益复杂网络环境下的安全需求,在国内外受到广泛关注.文章综述了不同应用背景下QoP的含义,提出了QoP的定义及其评价指标,分析了目前QoP的体系结构、评价模型及实现机制,并对今后的研究方向进行了展望.

Research on Quality of Protection in Networks

Computer Network security is more and more important,it is urgent to develop a suite of measurable and quantitative metrics to evaluate quality of security protection.As a new concept in the field of network security,QoP(Quality of Protection) can provide different levels security assurance for different users and traffic and meet the requirement of security in increasingly complicated network environments,and is focused at home and aboard.In this paper,all kinds of meaning of QoP in the literature are discussed,in refer to the concepts of QoS,the definition of QoP and metrics are developed and analyzed from the user and system view.Then the state of art of QoP evaluation modeling,architectures and implementing mechanism are analyzed and classified.Finally some concluding remarks on new and challenging directions for future and potential research of QoP are discussed.