Conditions for anonymity in some generic public-key encryption constructions

TIAN Yuan; DENG Lu-yao; ZHANG Hao

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Conditions for anonymity in some generic public-key encryption constructions

更新时间：2024-10-14

- Conditions for anonymity in some generic public-key encryption constructions
- Vol. 30, Issue S2, Pages: 8-16(2009)
- 作者机构：
  
  大连理工大学软件学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN918
- Published：2009
- 稿件说明：
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TIAN Yuan, DENG Lu-yao, ZHANG Hao. Conditions for anonymity in some generic public-key encryption constructions[J]. 2009, 30(S2): 8-16.
DOI：

TIAN Yuan, DENG Lu-yao, ZHANG Hao. Conditions for anonymity in some generic public-key encryption constructions[J]. 2009, 30(S2): 8-16. DOI：

摘要

公钥加密方案的匿名性(亦称公钥隐密性)与数据保密性同样具有重要应用价值。最近Canetti-Halevi-Katz给出了基于IBE构造普通公钥加密方案的一个优美的一般性方法

继而Boneh-Katz给出一个不同的构造

对前者进行了性能改进。研究这几类一般性构造的匿名性质。建立了关于IBE方案的两个通用的新概念

即全局公钥匿名和全局公钥相对匿名性质

通过这些较弱的安全性概念

证明了关于Canetti-Halevi-Katz方案和Boneh-Katz方案的选择密文匿名的两类充分条件。

Abstract

In applications of public-key encryption schemes

anonymity（key-privacy） as well as security（data-privacy） is useful and widely desired.Recently Canetti-Halevi-Katz proposed a generic and elegant IBE-based construction for（tra-ditional） public-key encryption

whose performance was improved by another construction proposed by Boneh-Katz.To analyze such two constructions’ anonymity

two new and generic concepts in IBE scheme

"master-key anonymity"and"relevant master-key anonymity"were proposed and two different sufficient conditions for chosen-ciphertext anonymity were proved for Canetti-Halevi-Katz and Boneh-Katz constructions.

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Related Author

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Related Institution

Information Engineering University

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Institute of Network and Information Security,Xidian University

School of Information Science and Engineering, University of Jinan

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