计算机工程 ›› 2012, Vol. 38 ›› Issue (9): 127-130.doi: 10.3969/j.issn.1000-3428.2012.09.038

• 安全技术 • 上一篇    下一篇

无证书限制性部分盲签名方案的分析与改进

马冬兰,张建中   

  1. (陕西师范大学数学与信息科学学院,西安 710062)
  • 收稿日期:2011-06-27 出版日期:2012-05-05 发布日期:2012-05-05
  • 作者简介:马冬兰(1984-),女,硕士研究生,主研方向:密码学;张建中,教授、博士
  • 基金项目:
    国家自然科学基金资助项目(11071151);陕西省自然科学基金资助项目(2009JM8002);陕西省教育厅科学研究计划基金资助项目“自然科学项目”(2010JK829, 2010JK398);中央高校基本科研业务费专项基金资助项目(GK201002041);陕西师范大学研究生培 养创新基金资助项目(2011CXS021)

Analysis and Improvement of Certificateless Restrictive Partially Blind Signature Scheme

MA Dong-lan, ZHANG Jian-zhong   

  1. (College of Mathematics and Information Science, Shaanxi Normal University, Xi’an 710062, China)
  • Received:2011-06-27 Online:2012-05-05 Published:2012-05-05

摘要: 无证书限制性部分盲签名方案不满足限制性,用于电子现金系统时会出现用户重复消费而无法被检测出的情况。为解决该问题,提出一种改进方案,将原方案中签名者的2个部分签名绑定在一起,从而防止在签名阶段伪造出任何形式且无需满足限制性的消息的有效签名。理论分析结果表明,改进方案满足限制性、部分盲性和不可伪造性。

关键词: 无证书签名, 部分盲签名, 限制性, 双线性对, 基于身份, 不可伪造性

Abstract: The certificateless restrictive partially blind signature scheme does not satisfy the property of restrictiveness, and an account-holder can not be revealed when double-spending happens. In order to solve this problem, this paper proposes an improved scheme. In the new scheme, the two partial signatures of the signer in the original scheme can be bounded together, thus it can avoid forging valid signatures for any form of messages which does not meet the restrictiveness in the signature stage. Theoretical analysis results show that the improved scheme meets restrictiveness, partial blindness and unforgeability.

Key words: certificateless signature, partially blind signature, restrictiveness, bilinear pairings, ID-based, unforgeability

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