CCA2 Secure Fuzzy Identity-Based Encryption with Constant Size Ciphertexts in the Standard Model

GE Ai-jun; MA Chuan-gui; CHENG Qing-feng

doi:10.3969/j.issn.0372-2112.2013.10.012

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CCA2 Secure Fuzzy Identity-Based Encryption with Constant Size Ciphertexts in the Standard Model

更新时间：2025-07-16

- CCA2 Secure Fuzzy Identity-Based Encryption with Constant Size Ciphertexts in the Standard Model
- Acta Electronica Sinica Vol. 41, Issue 10, Pages: 1948-1952(2013)
- 作者机构：
  
  1. 解放军信息工程大学数学工程与先进计算国家重点实验室,河南,郑州,450002
  2. 解放军外国语学院基础部,河南,洛阳,471003
  3. 解放军信息工程大学数学工程与先进计算国家重点实验室,河南,郑州,450002
  4. 解放军外国语学院基础部,河南,洛阳,471003
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2013.10.012
  CLC： TP309
- Published：2013
- 稿件说明：
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GE Ai-jun, MA Chuan-gui, CHENG Qing-feng. CCA2 Secure Fuzzy Identity-Based Encryption with Constant Size Ciphertexts in the Standard Model[J]. Acta Electronica Sinica, 2013, 41(10): 1948-1952.
DOI：

GE Ai-jun, MA Chuan-gui, CHENG Qing-feng. CCA2 Secure Fuzzy Identity-Based Encryption with Constant Size Ciphertexts in the Standard Model[J]. Acta Electronica Sinica, 2013, 41(10): 1948-1952. DOI： 10.3969/j.issn.0372-2112.2013.10.012.

摘要

模糊基于身份加密体制为基于身份密码提供了检错能力

并且可以把消息加密后同时发送给多个具有相同属性的用户.本文提出了一种在标准模型下能抵抗适应性选择密文攻击

并且密文长度达到了固定值的模糊基于身份加密方案.与现有方案相比

本方案占用通信带宽低

计算效率高

具有更高的安全性

因此能更好的满足应用要求.

Abstract

Fuzzy identity-based encryption can provide an error-tolerance property for identity-based systems

and it allows a sender to encrypt a message to all users who have a certain set of attributes.In this paper

we proposed a fuzzy identity-based encryption scheme with constant size of ciphertexts that is indistinguishable against adaptive chosen ciphertexts attacks(CCA2)in the standard model.Compared with other existing schemes

this construction can satisfy the application requirements

as it can provide better efficiency in terms of the communication and computation cost as well as a stronger security guarantee.

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Related Institution

College of Computer and Information Engineering, Hohai University

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