Efficient and Secure Multi-Signature Scheme Based on Trusted Computing  

作　　者：HAO Liming YANG Shutang LU Songnian CHEN Gongliang 

机构地区：[1]Department of Electronic Engineering, Shanghai Jiao TongUniversity, Shanghai 200240, China [2]School of Information Security Engineering, Shanghai JiaoTong University, Shanghai 200240, China

出　　处：《Wuhan University Journal of Natural Sciences》2008年第2期180-184,共5页武汉大学学报（自然科学英文版）

基　　金：the National High Technology Research and Development Program of China(863 Program) (2005AA145110, 2006AA01Z436);the Natural Science Foundation of Shanghai (05ZR14083);the Pudong New Area Technology Innovation Public Service Platform of China (PDPT2005-04)

摘　　要：A new multi-signature scheme was proposed with the extension of the direct anonymous attestation （DAA） protocol supported by trusted computing （TC） technology. Analysis and simulation results show that the signer＇s privacy is well protected with dynamic anonymity, the public key and signatures have length independent of the number of signature members, new signers are allowed to join the signature without modifying the public key, and attacks caused by secret key dumping or leaking can be avoided.A new multi-signature scheme was proposed with the extension of the direct anonymous attestation （DAA） protocol supported by trusted computing （TC） technology. Analysis and simulation results show that the signer＇s privacy is well protected with dynamic anonymity, the public key and signatures have length independent of the number of signature members, new signers are allowed to join the signature without modifying the public key, and attacks caused by secret key dumping or leaking can be avoided.

关 键 词：MULTI-SIGNATURE trusted computing （TC） direct anonymous attestation （DAA） dynamic anonymity 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]