一种新的基于ECDLP的受限盲签名方案

A new restrictive blind signature scheme based on ECDLP

针对Brands受限盲签名协议中模指数运算较多的问题,提出一种新的基于ECDLP的受限盲签名方案,对盲变换表达式进行了简化,并将其模拟到椭圆曲线上实现.分析表明,新方案在保证安全性的前提下,降低了计算复杂度,提高了执行效率.

Electronic payment is core factor and crucial process of e-commerce. Brands＇ restrictive blind signature scheme is the theory basis of off line electronic cash protocol. The thesis improves the Brands＇ restrictive blind signature scheme, through simplifying the blind expression, and simulates it to ellipse curve. On the premise of ensuring security, it declines the computing complexity, enhances the efficiency. Aimed at the problem of module exponent calculating of Brands＇ restrictive blind signature scheme, the thesis presents a new restrictive blind signature scheme based on ECDLP. The new scheme simplifies the blind expression and simulates it to ellipse curve. On the premise of ensuring security, it declines the computing complexity, enhances the efficiency.