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J4 ›› 2013, Vol. 48 ›› Issue (05): 57-62.

• 前沿进展 • 上一篇    下一篇

强盲签名与惟一盲签名的等价性

蔡杰1,2,秦静1*,韩斐1   

  1. 1.山东大学数学学院, 山东 济南 250100; 2.山东英才学院基础部, 山东 济南 250104
  • 收稿日期:2012-10-26 出版日期:2013-05-20 发布日期:2013-05-10
  • 通讯作者: 秦静(1960- ),女,教授,研究方向为密码学. Email:qinjing@sdu.edu.cn
  • 作者简介:蔡杰(1986- ),女,硕士研究生,研究方向为密码学. Email:caijie0318@126.com
  • 基金资助:

    国家自然科学基金资助项目(60873041,61272091);山东省自然科学基金面上项目(ZR2012FM005);济南市科技局高校院所自主创新项目(201202009)

The equivalence of strong blind signature and unique blind signature

CAI Jie1,2, QIN Jing1*, HAN Fei1   

  1. 1. School of Mathematics, Shandong University, Jinan 250100, Shandong, China;
    2. Department of Basic Education, Shandong Yingcai University, Jinan 250104, Shandong, China
  • Received:2012-10-26 Online:2013-05-20 Published:2013-05-10

摘要:

以基于RSA体制的盲签名方案为讨论对象,将数字签名方案中的强不可伪造性引进到一般的盲签名中,给出了强盲签名方案的定义,并采用游戏归约调用证明方法将强盲签名方案的强不可伪造性攻击游戏与具有惟一性的盲签名方案的惟一性证明进行比较进而归约调用,得出结论:强盲签名方案与具有惟一性的盲签名方案是等价的,从而给出了具有惟一性的盲签名方案的更一般化的定义和判定方法,解决了判定一个盲签名方案是否具有惟一性的公开问题。

关键词: 盲签名;强不可伪造性;惟一性;强盲签名;one-more-forgery

Abstract:

Focused on the Chaum’s RSA-based blind signature scheme and introduced the strong un-forgeability in blind signature, a new class of blind signature schemes called strong blind signature scheme was presented. A conclusion was proposed which the strong blind signature and the unique blind signature were equivalent by using game reduction and comparing the un-forgeable attack game of strong blind signature schemes with that of the unique blind signature schemes. From this conclusion, more general secure definition and determinant methods for the unique blind signature schemes were proposed, so the open problem that how to decide the unique blind signature schemes was solved.

Key words: blind signature; strong un-forge ability; unique blind signature; strong blind signature; one-more-forgery

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