指定验证人无第三方代理多重签名方案  

Designated-Verifier Proxy Multi-Signature Scheme without the Third Party

作　　者：张兴华[1] 

机构地区：[1]廊坊师范学院数学与信息科学学院,河北廊坊065000

出　　处：《信息安全与通信保密》2014年第2期85-87,91,共4页Information Security and Communications Privacy

基　　金：河北省高等学校科学技术研究青年基金项目(编号:Q2012020);廊坊市科学技术研究与发展计划项目(编号:2013011047)

摘　　要：基于离散对数难题提出一个指定验证人的无第三方代理多重签名方案。相比于其他代理签名方案,新方案避免了用户私钥的泄露,解决了用户代理权的撤销问题,方案签名过程不需要可信第三方的参与,只在时间戳服务器上维护一张授权期限列表。该方案满足强不可伪造性、可撤销性,可以有效地指定签名验证人且效率较高。Based on discrete logarithm problem, a new designated-verifier proxy multi-signature scheme without verification from the third party is proposed. Compared with other proxy signature scheme, this new scheme can prevent leak of the user＇s private key and solve the revocation problem of the user＇s agent right. This scheme requires no involvement of the trusted third party in the signing process and only maintains an authorized deadline list on the timestamp server. The scheme could satisfy the requirements of strong unforgeability and revocation, and could also efficiently designate the signature verifier.

关 键 词：代理多重签名 指定验证 代理撤销 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]