Abstract: It is described that a practical application of the algorithm of Group Signatures in Access Control System(ACS). The first part includes an introduction on the concepts of Group Signature and ACS, and an analysis of the weakness of current ACS; then there is a description of the proposed model of access control system based on group signatures. In this description, the system, the format definition, the flow description and the characters of it are described, including an analysis on its virtue and weakness.

Key words: group signature, ACS, public-key cryptology

摘要： 描述群签名算法的一种实际应用，提出了一种新的基于群签名的门禁系统模型。文中首先讨论了群签名算法和门禁系统的概念，分析了经典门禁系统的作用及其缺陷；而后研究了一种基于群签名算法的门禁系统，描述了这种系统模型、有关的系统操作集合，给出了系统模型的形式化定义；最后分析了这种门禁系统模型的特点。

关键词: 群签名, 门禁系统, 公钥加密