Access Key Distribution Scheme for Level-based Hierarchy
In this paper, a new access key distribution scheme is proposed for applications where users are in a level-based hierarchy. Based on Chinese Remainder Theorem (CRT) and Rabin-based secure public key cryptosystem, the proposed scheme has the following characteristics: (1) each user can derive the secret key foruser in a lower security level and the inversion is not allowed; (2) the key generation and derivation algorithms are simple; (3) the user and secret key selection are flexible;(4) semantic security can be ensured to prevent attacking from users with lower privileges.
access control key distribution CRT hash function cryptosystem
Mingxing He Pingzhi Fan Firoz Kaderali Ding Yuan
Southwest Jiaotong University, Chengdu, 610031, P.R.China;Department of Communication Systems, Unive Southwest Jiaotong University, Chengdu, 610031, P.R.China Department of Communication Systems, University of Hagen, 58084 Hagen,Germany
国际会议
成都
英文
942-945
2003-08-27(万方平台首次上网日期,不代表论文的发表时间)