A new restrictive blind signature scheme based on ECDLP

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.