期刊名称：International Journal of Security and Its Applications
印刷版ISSN：1738-9976
出版年度：2016
卷号：10
期号：2
页码：237-300
DOI：10.14257/ijsia.2016.10.2.26
出版社：SERSC
摘要：Currently, electronic cash system is one of the most important ways of electronic payment businesses, which requires quick payment and countermeasures against cyber-crime such as falsification of information, double-spending and money-tampering. In this paper, we proposed an efficient elliptic certificateless group signature with forward security and member revocation based on ACJT group signature. Compared to ACJT, our scheme has a shorter length of signature with less parameters and only involves a smaller amount of computation, leading to a higher efficiency. We also proposed a fair off-line multi-bank e-cash system based on the newly-proposed group signature scheme. The new e-cash system is considered to have high security and efficiency. And we proved its unforgeability, and prevention against double-spending and money-tampering actions. Our scheme has a significant advantage over the other schemes.
关键词：elliptic curve; certificateless signature; forward security; member ; revocation; group signature; electronic cash
