基于Niederreiter公钥密码体制的盲签名方案

基于纠错码的公钥密码体制由于具有可抵抗量子攻击的优点成为后量子密码理论中的一个研究重点。本文针对消息文件的匿名保护问题,基于纠错码的Niederreiter公钥密码体制提出了一种盲签名方案。消息通过哈希、盲化后利用N公钥密码体制的解密算法完成签名,用户通过脱盲可获得签名。分析表明,此算法具有一般盲签名的基本性质,并且比基于RSA体制的代理签名具有更高的效率;不但继承了Niederreiter公钥密码体制的安全性,而且通过加入哈希过程获得了更高安全性,是一种值得参考的基于编码的后量子签名方案。

Niederreiter PKC Based Blind Signature Scheme

The public - key cryptosystem （PKC） based on error - correcting code with the ability of quantum attacking resistance is becoming a core of the post - quantum cryptosystem. A blind signature based on Niederreiter PKC which based on error - correcting code is proposed aiming at protecting consumers＇anonymity. Through hashing and blinding process signed by Niederreiter encryption algorithm message, the user will get the signature by removing blinding factor. We show that this algorithm both possess general basic properties of blind signature and has higher efficiency than proxy signature base on RSA. The algorithm inherits the security of Niederreiter PKC and improves the security through the hash process, which is a code -based post- quantum signature scheme worth considering.