A Hierarchical Identity-Based Cryptosystem

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A Hierarchical Identity-Based Cryptosystem

更新时间：2023-12-08

- A Hierarchical Identity-Based Cryptosystem
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 46, Issue 1, Pages: 16-20(2007)
- 作者机构：
  
  1. 中山大学数学系广东广州,510275
  2. 韩山师范学院数学与信息技术学院广东潮州,521041
  3. 中山大学岭南学院广东广州,510275
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007，
  
  Published Online：25 January 2007，
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A Hierarchical Identity-Based Cryptosystem. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 46(1):16-20(2007)
DOI：

A Hierarchical Identity-Based Cryptosystem. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 46(1):16-20(2007) DOI：

摘要

提出一个基于分级身份的密码系统:包括分级的基于身份的加密和签名方案。在随机预言模型下

新的基于分级身份的加密和签名方案都是可证明安全的

同时在标准模型下

基于分级身份的加密方案是在给定身份攻击下可证明安全的。基于给出的基于分级身份的加密方案

首次提出了分级代理解密的概念

并且给出了安全模型和构造方法。

Abstract

A new hierarchical identity based(ID-based) cryptosystem is proposed

including hierarchical ID-based encryption and signature.In random oracle model

both hierarchical ID-based encryption and signature schemes are provably secure.Furthermore

the new hierarchical ID-based encryption scheme is secure under selective-ID attack in standard model.Furthermore

the notion of hierarchical proxy decryption is first proposed.Meanwhile

the security model and a generic construction method for proxy decryption are also presented.

关键词

基于身份分级的签名加密&nbsp代理解密

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Related Author

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Related Institution

Department of Chemistry,Zhongshan University

中国科学院华南植物研究所

中山大学计算机科学系

中山大学物理学系

中山大学化学系

Postal code：510275
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