新型的定向代理签名方案  

New Designated Receiver Proxy Signature Scheme

作　　者：徐国胜[1] 谷利泽[1] 杨义先[1] 周锡增 

机构地区：[1]北京邮电大学信息工程学院,北京100876 [2]台湾元智大学,台湾000320

出　　处：《北京邮电大学学报》2008年第4期42-45,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家“973计划”项目(2007CB310704);北京市自然科学基金项目(4062025)

摘　　要：在Dai方案基础上,通过修改代理私钥结构,并在授权证书中增加验证人公钥信息,提出一种新方案.新方案具有强不可伪造性,原始签名人不能伪造代理人对任意消息的定向代理签名;不可滥用性,代理签名人不能对定向代理签名进行验证,从而不能滥用该签名.同时,新方案中原始签名人能指定多个验证人,在具体签名时由代理签名人和其中一个验证人交互完成定向代理签名,该签名只能为该验证人验证并接受.新方案具有较高的可控性.Based on the Dai＇s scheme, by the revision of proxy private key structure, and addition of the public key information of verifier in the proxy authorized certificate, it is proposed that a new digital signature scheme. The scheme has two properties： （1） Strong unforgetability, original signer cannot forge a signature signed by proxy signer; （2） Misuse, proxy signer cannot complete to verify and receive he/she make a designated receiver proxy signature, and use the signature for other usage. In the same time, multiple receiver for a signature can be designated in our scheme, during making a designated receiver proxy signature, proxy signer need interact with receiver to complete the signature, and the signature can only be received this receiver. The new scheme has high controllability.

关 键 词：定向代理签名 多定向验证人 不可伪造性 滥用性 可控性 

分 类 号：TN918[电子电信—通信与信息系统]