摘要
本文提出并建立一种多级数字文档安全管理系统。该系统从存贮和访问两个方面对数字文档进行安全管理,采用信息分配算法IDA将数字文档分散存贮在多个管理节点,采用扩展的军用安全模型控制具有不同职权等级的用户对多敏感级别数字文档的访问。理论分析说明该系统具有良好的安全保密性、完整可靠性以及实时有效性。
A kind of multi - level digital document security management system based on the extensive military security model （EMSM） was proposod in this paper. The digital document was dispersed into n pieces by the Information Dispersal Arithmetic and stored into n management nodes. The purview of the sensitive digital documents that the subjects with different authorization could access was controlled by the EMSM. The analysis in theory shows that the security, integrity and validity of the digital documents that are managed by the designed system are nicer.
出处
《情报科学》
CSSCI
北大核心
2005年第9期1367-1371,共5页
Information Science
基金
国家自然科学基金资助项目(69931040)
关键词
信息安全
军用安全模型
数字文档
管理
information security
military security model
digital document
management
