基于椭圆曲线的多银行电子现金方案

Multi-Bank E-Cash Scheme Based on Elliptic Curve Cryptography

目前安全移动终端设备广泛地应用于移动电子商务,但移动终端设备存储能力和处理能力都相对较低,不适合处理基于离散对数问题的电子现金系统。因此,论文基于Wang的方案。提出一个基于椭圆曲线的匿名可撤销的可分的多银行电子现金方案。由于椭圆曲线加密具有密钥强度高,并且椭圆曲线加密可以提高数字签名和认证的速度,因此,论文基于椭圆曲线的电子现金系统对资源和带宽占用率都很低,更适合于安全移动终端和各种嵌入式设备。

At present,the secure mobile terminal equipment is widespreadly applied to mobile electronic commerce,but storage and processing capability of mobile terminal equipment is much lower than those of traditional devices,it does not suit electronic cash system based on the discrete logarithms question.Therefore,this article based on the Wang＇s scheme proposes one anonymity-revocable divisible multi-bank e-cash system which is based on elliptic curve cryptography （ECC）.Because ECC has high strength keys,and it can speed up digital signature and authentication,therefore,this scheme based on elliptic curve cryptography has low occupancy rate to the resources and the bandwidth,and it is more suitable for the safe mobile termination and all kinds of embedded equipment.