一种匿名的多接收者密钥封装机制

doi:10.3969/j.issn.1001-2400.2014.05.002

J4 ›› 2014, Vol. 41 ›› Issue (5): 7-12.doi: 10.3969/j.issn.1001-2400.2014.05.002

一种匿名的多接收者密钥封装机制

傅晓彤;薛鹏

(西安电子科技大学综合业务网理论及关键技术国家重点实验室，陕西西安 710071)

收稿日期:2013-08-27 出版日期:2014-10-20 发布日期:2014-11-27
通讯作者: 傅晓彤
作者简介:傅晓彤(1977-)，女，副教授，E-mail：xtfu@mail.xidian.edu.cn．
基金资助:
国家自然科学基金资助项目(61100235)

Identity-based privacy-preserving multi-receiver key encapsulation

FU Xiaotong;XUE Peng

(State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an 710071, China)

Received:2013-08-27 Online:2014-10-20 Published:2014-11-27
Contact: FU Xiaotong

摘要/Abstract

摘要：

匿名性能够保障用户的个人隐私不受非授权方侵害．针对接收者隐私保护的需求，基于双线性对提出了一个新的基于身份的匿名多接收者密钥封装机制．利用一次匿名密钥协商技术和Hash函数生成临时密钥，从而实现接收者的匿名．在随机预言机模型下，证明了其在选择密文攻击和身份攻击下满足封装密钥的机密性和匿名性，具有较高的效率且密文较短．

关键词: 密钥封装, 混合加密, 隐私保护, 随机预言机

Abstract:

Anonymity can protect the privacy of the user. Based on the bilinear pairing, an efficient identity-based privacy-preserving multi-receiver key encapsulation mechanism is presented to protect the identities of the users who are able to access protected contents. This proposed scheme uses the one-way anonymous key agreement protocol and Hash function to generate the temporary key. In the random oracle model, we formally prove that the proposed scheme is confidential and anonymous under selective ID and chosen ciphertext attack. Besides, it has a higher efficiency and a shorter ciphertext.

Key words: key encapsulation, hybrid encryption, privacy protection, random oracle

傅晓彤;薛鹏. 一种匿名的多接收者密钥封装机制[J]. J4, 2014, 41(5): 7-12.

FU Xiaotong;XUE Peng. Identity-based privacy-preserving multi-receiver key encapsulation[J]. J4, 2014, 41(5): 7-12.

参考文献

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一种匿名的多接收者密钥封装机制

Identity-based privacy-preserving multi-receiver key encapsulation

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