一个基于超椭圆曲线密码体制的盲数字签名方案

A Blind Digital Signature Scheme Based on Hyperelliptic Curve Cryptosystem

超椭圆曲线密码体制是以超椭圆曲线离散对数问题的难解性为基础的,具有安全性高、操作数短等优点,相对于其他密码体制有明显的优势。设计了一个基于超椭圆曲线上的盲数字签名方案,方案中用户选择随机数对要签名的消息进行盲化处理,非法用户在未知盲因子的情况下很难分析出明消息。因此,它可以有效地防止非法用户对消息进行伪造和篡改,具有较高的安全性。

The hyperelliptic curve cryptosystem is based on the hyperelliptic curve discrete logarithm problem, and has the higher safety and the shorter operands compared to other cryptosystems. In this paper, we propose a blind signature scheme based on the hyperelliptic curve cryptosystem. The legal user bhnds the signed message by the random number, and it is difficult for illegal users to analyze the plaintext without blind factor. This scheme can prevent the illegal user from forging and juggling the message, and has the higher safety.