基于双线性对的聚合代理签名  

A certificate-based aggregate proxy signature scheme

作　　者：喻琇瑛[1] 何大可[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《中南大学学报（自然科学版）》2015年第12期4535-4541,共7页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(61401377)~~

摘　　要：结合聚合签名和代理签名的特点,基于证书签名思想,提出基于证书的聚合代理签名定义和安全模型,在双线性对下,构造一个新的基于证书聚合代理签名方案。在计算Diffie-Hellman困难问题(CDH)假设和随机预言机模型下,对方案的安全性和效率进行分析。研究结果表明:与n个独立代理签名相比,本文方案有效压缩了签名长度,提高了签名和验证效率。The definition of certificate-based aggregate proxy signature was introduced based on Boneh＇s aggregate signature model and Mambo＇s proxy signature model, the security model for such signatures was presented and a certificate-based aggregate proxy signature scheme from bilinear pairing was constructed. The security and the efficiency of scheme were analyzed. The results show that the scheme is existentially unforgeable against adaptively chosen message attacks from two types of adversaries in random oracle model. In terms of computation, it is also useful for reducing the size of certificate chains and thus it has higher efficiency in signature and verification algorithm than n proxy signatures.

关 键 词：基于证书的签名 聚合代理签名 CDH问题 双线性对 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]