北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2016, Vol. 39 ›› Issue (5): 20-25.doi: 10.13190/j.jbupt.2016.05.005

• 论文 • 上一篇    下一篇

抗泄漏的身份基聚合签密方案

王志伟, 张献一   

  1. 南京邮电大学 计算机学院, 南京 210023
  • 收稿日期:2015-12-18 出版日期:2016-10-28 发布日期:2016-12-02
  • 作者简介:王志伟(1976-),男,副教授,E-mail:zhwwang@njupt.edu.cn.
  • 基金资助:
    国家自然科学基金项目(61672016);上海市信息安全综合管理技术研究重点实验室开放课题(AGK201603);广东省信息安全技术重点实验室开放课题(GDXXAQ2016-06)

Leakage Resilient Identity-Based Aggregate Signcryption

WANG Zhi-wei, ZHANG Xian-yi   

  1. College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • Received:2015-12-18 Online:2016-10-28 Published:2016-12-02

摘要: 为了解决聚合签密方案中存在的密钥泄漏问题,在无限制身份基聚合签密方案的基础上,设计出一个抗身份密钥泄漏所需的身份基哈希证明系统,证明了其解封正确性、合法/非法密文不可区分性、平滑性和普遍性.基于该身份基哈希证明系统,结合随机数提取器,构造了一个抗泄漏的身份基签密方案,并给出了方案的安全证明,结果表明,其身份密钥的泄漏比值可达1-o(1).

关键词: 聚合签密, 抗泄露, 哈希证明系统, 随机数提取器

Abstract: In order to solve the problem of secret key leakage in aggregate signcryption, an identity-based hash proof system based on unrestricted identity-based aggregate signcryption scheme is constructed, and its correctness of decapsulation, valid/invalid ciphertext indistinguishability, smoothness and universality are also proved. Then, with the randomness extractor, a leakage resilient identity-based aggregate signcryption scheme is constructed, in which the leakage rate of identity-based secret key can be achieved to 1-o(1). Finally, the security proof of this leakage resilient scheme is also provided.

Key words: aggregate signcryption, leakage-resilient, Hash proof system, randomness extractor

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