信息网络安全 ›› 2018, Vol. 18 ›› Issue (3): 46-53.doi: 10.3969/j.issn.1671-1122.2018.03.006

• • 上一篇    下一篇

格上基于身份的抗量子攻击的部分盲签名方案

叶青, 周锦, 汤永利, 王峻峰()   

  1. 河南理工大学计算机科学与技术学院,河南焦作 454000
  • 收稿日期:2017-12-20 出版日期:2018-03-15 发布日期:2020-05-11
  • 作者简介:

    作者简介:叶青(1981—),女,辽宁,讲师,博士,主要研究方向为密码学;周锦(1991—),男,河南,硕士研究生,主要研究方向为密码学;汤永利(1972—),男,河南,教授,博士,主要研究方向为信息安全、密码学;王峻峰(1980—),男,河南,讲师,硕士,主要研究方向为计算机网络安全。

  • 基金资助:
    国家自然科学基金[61300216];“十三五”国家密码发展基金[MMJJ20170122];河南省高等学校重点科研项目[12A520021,16A520013,18A413001];河南理工大学博士基金[B2014-044,B2016-36]

Identity-based Against Quantum Attacks Partially Blind Signature Scheme from Lattice

Qing YE, Jin ZHOU, Yongli TANG, Junfeng WANG()   

  1. College of Computer Science and Technology, Henan Polytechnic University, Jiaozuo Henan 454000, China
  • Received:2017-12-20 Online:2018-03-15 Published:2020-05-11

摘要:

部分盲签名(PBS)是对盲签名(BS)的扩展,其不仅具备了盲签名的盲性,而且解决了盲签名中无法对签名进行追踪这一问题,从而有效解决了盲签名在实际应用中的诸多问题。针对目前基于身份的部分盲签名(IBPBS)方案不能抵抗量子攻击的问题,文章提出了一个格上IBPBS方案。方案中使用矩阵采样算法根据用户身份生成对应的私钥,使用拒绝采样定理对消息进行签名,并且修改了格上部分盲签名方案中签名所需参数的采样方式,在不影响安全性的前提下,避免了出现签名异常的情况。文中IBPBS方案能够有效抵抗量子攻击,并且不会产生异常签名,有效地提高了签名的成功率,同时也降低了签名通信代价。最后文章在随机预言模型下,基于格上小整数解(SIS)问题的困难性证明了方案在选择消息和选择身份攻击下满足存在不可伪造性。

关键词: 格, 基于身份, 部分盲签名, 小整数解问题, 量子攻击

Abstract:

Partially blind signature is an extension of blind signature. It not only has the blindness in blind signature, but also solves the problem of tracking signature in blind signature. It effectively solves many problems in the application of blind signature. In this paper, an identity-based partially blind signature scheme from lattice is proposed for the problem which current relevant schemes cannot resist the quantum attack. A matrix sampling algorithm is used to generate the corresponding private key according to the user’s identity, and the signature of a message is generated by the rejection sampling theorem. On the premise of security, this paper changes the sampling method of the signature parameters in a lattice-based partially blind signature scheme. While verifying the signature, it can effectively avoid the occurrence of unqualified signatures. The proposed scheme makes the IBPBS scheme effectively resist quantum attacks, and it also do not produce the exception signature, which effectively improves the success rate of the signature and reduces the signature communication cost. It is proved that under the random oracle model, based on the difficulty of the small integer solution (SIS) problem, the proposed scheme satisfies the existential unforgeability under the chosen-message and the chosen-identity attacks.

Key words: lattice, identity-based, partially blind signature, small integer solution problem, quantum attack

中图分类号: