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Author:

张兴兰 (张兴兰.) | 卢玉顺 (卢玉顺.)

Indexed by:

CQVIP

Abstract:

针对目前基于LWE (Learn With Errors)构造的全同态加密方案普遍需要高斯函数抽样以及公钥尺寸过大等问题,本文采用高效的LWR (Learning With Rounding)替换传统的LWE方案,提出了多用户云环境中提供端到端数据保护的基于密钥策略–属性的全同态加密(LWR-ABFHE)方案。本文提出的LWR-ABFHE方案能够在对加密数据进行细粒度访问的同时执行同态计算,并且在不牺牲同态加密的计算能力情况下,达到在一组授权属性上处理单调访问结构的效果。本文在LWR假设下,证明了LWR-ABFHE方案在选择明文攻击下的安全性。

Keyword:

单调访问结构LWR LWR Monotonic Access Struc-ture LWE Fully Homomorphic Encryption Attribute-Based Encryption 全同态加密 基于属性

Author Community:

  • [ 1 ] [张兴兰]北京工业大学,信息学部,北京
  • [ 2 ] [卢玉顺]北京工业大学,信息学部,北京

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Source :

计算机科学与应用

ISSN: 2161-8801

Year: 2018

Issue: 04

Volume: 8

Page: 503-511

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 8

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