通信学报 ›› 2017, Vol. 38 ›› Issue (10): 10-17.doi: 10.11959/j.issn.1000-436x.2017194

• 学术论文 • 上一篇    下一篇

基于PKI和IBC的双向匿名异构签密方案

王彩芬,刘超,李亚红,牛淑芬,张玉磊   

  1. 西北师范大学计算机科学与工程学院,甘肃 兰州 730070
  • 修回日期:2017-05-17 出版日期:2017-10-01 发布日期:2017-11-16
  • 作者简介:王彩芬(1963-),女,河北安国人,博士,西北师范大学教授、博士生导师,主要研究方向为无线传感器、安全协议与分析、签密、格密码学。|刘超(1989-),男,山东淄博人,西北师范大学硕士生,主要研究方向为网络与信息安全、签密。|李亚红(1985-),女,甘肃定西人,西北师范大学博士生,主要研究方向为信息安全密码学、混淆、格密码学。|牛淑芬(1978-),女,甘肃通渭人,博士,西北师范大学副教授、硕士生导师,主要研究方向为无线传感网络、云计算安全、网络编码。|张玉磊(1979-),男,甘肃靖远人,博士,西北师范大学副教授、硕士生导师,主要研究方向为网络与信息安全、密码学、安全协议分析与设计。
  • 基金资助:
    国家自然科学基金资助项目(61202395);国家自然科学基金资助项目(61562077);国家自然科学基金资助项目(61662069);国家自然科学基金资助项目(61662071);甘肃省自然科学基金资助项目(145RJDA325)

Two-way and anonymous heterogeneous signcryption scheme between PKI and IBC

Cai-fen WANG,Chao LIU,Ya-hong LI,Shu-fen NIU,Yu-lei ZHANG   

  1. School of Computer Science and Engineering,Northwest Normal University,Lanzhou 730070,China
  • Revised:2017-05-17 Online:2017-10-01 Published:2017-11-16
  • Supported by:
    The National Natural Science Foundation of China(61202395);The National Natural Science Foundation of China(61562077);The National Natural Science Foundation of China(61662069);The National Natural Science Foundation of China(61662071);The Natural Science Foundation of Gansu Province(145RJDA325)

摘要:

现有的基于传统公钥密码体制(PKI,public key infrastructure)和基于身份的密码体制(IBC,identity-based cryptosystem)之间的异构签密方案都有一定的缺陷,基于此,提出一种新的双向的基于PKI和IBC的异构签密方案。在随机预言模型中和在基于计算性Diffie-Hellman困难问题(CDHP,computational Diffie-Hellman problem)、q-Diffie-Hellman逆问题(q-DHIP,q-Diffie-Hellman inversion problem)和双线性Diffie-Hellman困难问题(BDHP,bilinear Diffie-Hellman problem)的假设下,该方案满足机密性和不可伪造性。同时,该方案还满足密文的无连接性和匿名性。与已有同类异构签密方案对比,该方案不仅实现了签密的双向性,而且在PKI和IBC生成系统参数时不作限制,更加符合实际的应用环境。模拟实验表明,该方案具有可行性,并且满足用户对系统响应时间的要求。

关键词: 异构签密, 计算性Diffie-Hellman困难问题, 双线性Diffie-Hellman困难问题, q-Diffie-Hellman逆问题, 密文匿名性

Abstract:

Exiting heterogeneous signcryption schemes which were between public key infrastructure (PKI) and identity-based cryptosystem (IBC) have some limitations.A new heterogeneous signcryption scheme between PKI and IBC was proposed.In the random oracle mode,the scheme ensured confidentiality and unforgeability on the basis of the assumption of computational Diffie-Hellman problem (CDHP),q-Diffie-Hellman inversion problem (q-DHIP) and bilinear Diffie-Hellman problem (BDHP).Simultaneously,the proposed scheme guaranteed unconnectedness and anonymity of the ciphertext.Compared with other heterogeneous schemes,the scheme achieved two-way signcryption,and it generated parameters without restrict,which was suitable for actual situations.Simulation tests show that proposed scheme is feasible.

Key words: heterogeneous signcryption, compuatational Diffie-Hellman problem, bilinear Diffie-Hellman problem, q-Diffie-Hellman inversion problem, ciphertext anonymit

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