A Proxy Multi-Signature Scheme with Forward-Secure

摘要：

　　The proxy multi-signature scheme allow a proxy signer to represent a group of users to sign a document.Like most of digital signature schemes,its security wholly depends on the security of secret keys.Once secret keys are exposed,all preciously assigned signatures must be reissued.Forward-secure signatures are used to address this problem,in which all previously generated signatures are still considered to be valid even after secret keys are compromised.In this paper,by borrowing the idea of hierarchical ID-based signature (HIBS),we integrated forward security into the proxy multisignature scheme and proposed a proxy multi-signature scheme with forward-secure which supports the efficient batch verification of several signatures of the same message under different public keys.The security of our scheme relies on the hardness of computational Diffie-Hellman problem(CDHP) and Hash function.

关键词： forward security proxy multi-signature bilinear mapping computational Diffie-Hellman problem(CDHP) hierarchical ID-based signature(HIBS)

作者: Xiang-Qian Liang Yun Zhang Yong-Hua Zhang

作者单位: College of Information and Computer Science Shandong University of Science and Technology Shandong Qingdao, P.R.China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 881-885

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）