Verifiable outsourced attribute-based encryption with access update

Suqing LIN

doi:10.11959/j.issn.2096-109x.2019005

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Verifiable outsourced attribute-based encryption with access update

Special Column:Technology Research and Application Exploration on Attack and Defense of Cryptology | 更新时间：2024-06-03

- Verifiable outsourced attribute-based encryption with access update
- Chinese Journal of Network and Information Security Vol. 5, Issue 1, Pages: 37-49(2019)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-109x.2019005
  CLC： TP309.7
- Online First：2019-02，
  
  Published：15 February 2019
- 稿件说明：
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Suqing LIN. Verifiable outsourced attribute-based encryption with access update[J]. Chinese Journal of Network and Information Security, 2019, 5(1): 37-49.
DOI：

Suqing LIN. Verifiable outsourced attribute-based encryption with access update[J]. Chinese Journal of Network and Information Security, 2019, 5(1): 37-49. DOI： 10.11959/j.issn.2096-109x.2019005.

摘要

为满足公共云存储加密数据安全可靠的访问需求，提出支持访问更新的可验证外包属性加密方案。以经典的KP-ABE方案为基础，通过巧妙的算法设计实现方案的外包解密和密文访问权限可更新功能，同时支持外包计算的可验证性，确保第三方服务器诚实可靠地执行算法过程。在标准模型下证明方案关于原始密文和更新密文均具有选择 IND-CPA 安全性，并具备弱主私钥安全性和外包计算的验证可靠性。与同类方案相比，实现了功能、安全性和效率的协同优化。

Abstract

In order to meet the secure and reliable access requirements for the encrypted data stored in the public cloud

a verifiable outsourced attribute-based encryption scheme with access update was proposed.Based on a standard KP-ABE scheme

verifiable outsourced decryption and verifiable access update for a ciphertext through novel constructions for the scheme were obtained.The verifiability of the outsourced computation ensures that the third-party service may perform algorithms honestly.The scheme has selective IND-CPA security for the original and updated ciphertexts

weak master private key security

and verification soundness in the standard model were proved

respectively.Compared with similar schemes from literatures

the proposed scheme can achieve tradeoff in the optimization of functionality

security and efficiency.

关键词

Keywords

references

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Related Institution

The State Key Lab of Information Security,Institute of Information Engineering,Chinese Academy of Sciences

University of Chinese Academy of Sciences

School of Mathematics and Computer Science，Dali University, Dali

School of Mathematics and Computer Science,Fujian Normal University

Fujian Provincial Key Lab of Network Security and Cryptology

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