基于离散对数的若干新型代理签名方案

Some New Proxy Signature Schemes Based on Discrete Logarithms

本文基于离散对数提出了一个新型代理签名方案和一个代理多重签名方案 .新方案满足如下性质 :1 签名收方验证代理签名与验证原始签名的方式相同 ;2 签名收方容易区别代理签名和原始签名 ,即新方案可以对代理签名者的代理签名权和原始签名权进行有效地分离 ;3 原始签名人和代理签名人对其签名不可否认 ;4

A new proxy signature scheme and a proxy multisignature scheme are proposed based on discrete logarithms.These new schemes satisfy following properties:1.the signature receiver is able to verify the proxy signature in similar way to the verification of the original signature.2.the proxy signature must be distinguishable from the original signature,that is,new schemes can separate proxy signature right from original signature right.3.the signature schemes are nonrepudiable;in other words,neither the proxy signer nor original signer can deny their signatures.4.many signers can delegate their signature rights to a certain pepole,so that proxy multisignature can be signed.