椭圆曲线上的门限共享验证签名加密方案

Threshold Shared Verification Signature Encryption Scheme Based on Elliptic Curve

基于椭圆曲线密码体制提出一个门限共享验证签名加密方案。该方案的n个验证者中的任意t个可以验证签名的有效性,而少于t个验证者则不能验证签名的有效性,是数字签名与公钥密码体制的有机结合。与现有的门限共享验证签名方案相比,该方案具有数据传输安全性高、密钥长度短、通信代价小、执行效率更高等特点,并能防止验证人欺骗。

This paper proposes a threshold shared verification signature encryption scheme which based on elliptic curve, in which any t among n verifiers can verify the validness of signature, otherwise it cannot. The scheme integrates digital signature scheme with public key cryptography system. Compared with proposed threshold shared verification signature encryption scheme, it has higher secrecy of data transmission, requires shorter secret key distance and smaller communication cost, performs efficiently and be able to prevent verifier cheat, etc.