Generic On-line/Off-line Aggregate Signatures
Aggregate signatures play an important role in many real-world applications involve signatures on many different messages generated by many different users. However,the existing aggregate signature schemes are unsuitable for the environments where the computing and storage resources are limited since it always involves in inefficient modular exponentiation or pairing operations in aggregate signing or verification algorithms. In this paper we introduce the concept of on-line/off-line aggregate signatures in order to improve the performance of aggregate signatures.We also use an efficient double-trapdoor chameleon hash function to present a concrete construction based on the so-called hash-sign-switch paradigm. Moreover,we give an application of our scheme in stock markets,where the stockbroker can compress and batch verify the stockholders signatures in time due to the on-line/off-line property.
Chunhui Wu Yuqing Xing Xiaofeng Chen Dongyang Long Hyunrok Lee Kwangjo Kim
School of Information Science and Technology,Sun Yat-sen University,Guangzhou 510275,P.R.China International Research center for Information Security (IRIS) Information and Communications Univers
国际会议
成都
英文
107-112
2008-01-01（万方平台首次上网日期，不代表论文的发表时间）