Safety problems in access control with temporal constraints

被引:0
|
作者
Balbiani, P [1 ]
Cheikh, F [1 ]
机构
[1] Univ Toulouse 3, Inst Rech Informat Toulouse, F-31062 Toulouse, France
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暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Most of access control mechanisms use the matrix model to represent protection states of computer systems. We present a variant of the access control matrix model obtained by incorporating temporal constraints saying that "subject s has right r on object o since at least duration d". In connection with this enriched model, we also discuss the decidable and undecidable cases of one of the major themes of computer security, namely the classical safety problem for access control matrices.
引用
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页码:165 / 178
页数:14
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