一种CDH难题的强壮门限盲签名方案设计

Kind of schematic design of strong threshold blind signature based on CDH problem

盲签名是一种特殊的数字签名,在需要多个人同时参与才能生成签名的情况下,门限签名是较好的选择。在计算Diffie-Hellman(CDH)难题下设计了一个新型的(t,n)强壮门限盲签名方案,并论证了该方案的正确性和安全性。该方案可以满足很多应用要求,如电子现金、SET的安全电子支付、匿名选举等场合。

Blind signature belongs to a special digital signature,and threshold signature is a better choice when messages must be signed by more than one person.Presented a new blind and（t,n） robust threshold signature scheme under the computa-tional problem of Diffie-Hellman（CDH）,and also verified its correctness and safety.This scheme can meet the requirements of many applications,such as electronic cash,secure electronic payment of SET and anonymous election.