新的代理盲签名方案及其在电子现金中的应用*

在普通的代理签名中，原始待签消息对代理签名者来说是完全可见的，而在现实应用中，原始待签消息可能含有原始签名者或消息接收者的一些机密，这时让代理签名者看到待签消息的明文是不合理的。针对这一问题，将盲签名的体制引入代理签名中，给出了一个新的代理盲签名方案。通过分析表明，该方案不仅能满足代理盲签名所要求的所有性质，而且代理密钥的传输无须使用安全的秘密通道；同时,可以应用到电子现金等现实领域中。

New proxy blind signature scheme and its application in electronic cash

In ordinary proxy signature,the original message to be signed was complete plain text to the proxy signer.But in reality,there may be some private information contained in the message to be signed,at this circumstance,it was not reasonable for the proxy singer to see the plain text.In order to solve this problem,used the blind-signature mechanism in proxy signature,presented a new proxy blind signature scheme.It is showed by analyzing that the proposed scheme can satisfy the fulfill properties of a proxy blind signature.Furthermore,it is not need a secure channel to transmit the proxy message.At the same time,the scheme can be used in electronic cash.