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separation of duty in trust-based collaboration
Deng Lingli; He Yeping; Xu Ziyao
2009
会议名称4th International Conference on Information Security and Cryptology (Inscript 2008)
会议录名称Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
页码370-388
会议日期DEC 14-17,
会议地点Beijing, PEOPLES R CHINA
收录类别其他
出版地HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
出版者INFORMATION SECURITY AND CRYPTOLOGY
ISSN0302-9743
ISBN978-3-642-01439-0
部门归属Deng, Lingli; He, Yeping; Xu, Ziyao Chinese Acad Sci, Inst Software, Beijing 100190, Peoples R China.
摘要When domains employing heterogeneous RBAC policies collaborate by crossdomain role-role mappings, their local Separation of Duty constraints face the risk of breaching. We present the requirements for constraint-secure interoperation, to prohibit implicit authorizations that break constraints from other member domains, and propose a trust-based framework to ensure constraint-secure interoperation. The framework introduces cross-domain migration and remote assurance of constraints between mutually trusted domains to maximize interoperability, while ensuring separation of constraints between distrusted domains to minimize security risk. Specifically, we use a bitmap-based history-recording mechanism for member domains to analyze the interplay among innerdomain role hierarchies, crossdomain mappings and constraints. Algorithms of a fully distributed implementation, security proofs and illustrative usage cases for the proposed solution are provided.
关键词Secure Collaboration
主办者Chinese Assoc Cryptol Res, State Key Lab Informat Secur, Inst Software, Grad Univ Chinese Acad Sci, Natl Nat Sci Fdn China
语种英语
内容类型会议论文
URI标识http://ir.iscas.ac.cn/handle/311060/8366
专题基础软件国家工程研究中心
推荐引用方式
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Deng Lingli,He Yeping,Xu Ziyao. separation of duty in trust-based collaboration[C]. HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY:INFORMATION SECURITY AND CRYPTOLOGY,2009:370-388.
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