对基于离散对数的代理盲签名方案的改进

BLIND PROXY SIGNATURE MENDING SCHEME BASED ON DISCETE LOGARITHM

代理签名让原始签名者可以将其数字签名权力委托给代理签名者,使其能够代理原始签名者签发指定的数字消息;盲签名使用户能将给定的消息让别人签发,而又不泄漏任何有关的信息给签名者．本文对谭作文等结合代理签名和盲签名提出的基于离散对数的代理盲签名方案进行了改进;并证明了改进的方案是安全的．

Proxy signature allows an original signer to delegate his/her signing capability to a proxy signer such that the proxy signer can sign messages on behalf of the original signer. Blind signature allows a user to have a given message signed by the signer without revealing any information about the message. This paper improves a Proxy Blind Signature Scheme Based on DLP,and proves that this shceme is safe.