摘要
Based on both the Rabin's scheme and the Chinese remainder theorem, this paper presents a secure accesscontrol scheme for the hierarchy structure. Compared to the existing access control schemes, the scheme's key gener-ation algorithm and derivation algorithm of successor's keys are simple. In the scheme, the predecessor not only canefficiently derive secret keys of its successors, but also can withstand the attack of collusion. The scheme's dynamicfeature is perfect. Moreover, each security class in hierarchy structure can freely select/change his own key withoutaltering other keys present in the system.
Based on both the Rabin's scheme and the Chinese remainder tneorem, trus paper piesentm a (?)(?) control scheme for the hierarchy structure. Compared to the existing access control schemes, the scheme's key generation algorithm and derivation algorithm of successor's keys are simple. In the scheme, the predecessor not only can efficiently derive secret keys of its successors, but also can withstand the attack of collusion. The scheme's dynamic feature is perfect. Moreover, each security class in hierarchy structure can freely select/change his own key without altering other keys present in the system.
出处
《计算机科学》
CSCD
北大核心
2002年第12期77-79,共3页
Computer Science
基金
国家自然科学基金(批准号:60173041)
铁道信息科学与工程开放实验室项目(批准号:TDXX0205)
关键词
层次结构
安全动态存取控制
信息安全
数据安全
信息加密
计算机安全
Hierarchy structure,Rabin's scheme,Chinese remainder theorem, Dynamic access control,Key derivation algorithm
