GB/T 20270-2006 Translated English of Chinese Standard. (GBT 20270-2006, GB/T20270-2006, GBT20270-2006): Information security technology - Basis security techniques requirement for network [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 22 oct 2015 - 67 páginas This Standard specifies basis security techniques requirements necessary for network system of every security grade according to the division of five security protection grades in GB 17859-1999 and the roles of network system in information system. |
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access control function access verification protection allow legal operation audit protection grade confidentiality protection function control the external data confidentiality protection data flow control data integrity protection description in 6.1 designed and realized discretionary access control discretionary protection grade external access flow control function function of access function of system GB/T grade in application grade in link grade in presentation grade in session grade in transport grade of network identity authentication function integrity protection function layer is designed layer Link layer layer Network layer Link layer Network mandatory access control mark function Network security monitoring network system operation and refuse Physical layer Link processed data protect the integrity realized according refuse illegal operation Security audit security protection grade security tag protection structured protection grade system audit protection system is realized tag protection grade transmitted and processed Trusted path user data confidentiality user data integrity user's discretionary protection verification protection grade