Attribute-based encryption with hidden policies in the access tree

Yan SONG; Zhen HAN; Feng-mei LIU; Lei LIU

doi:10.11959/j.issn.1000-436x.2015135

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Attribute-based encryption with hidden policies in the access tree

academic paper | 更新时间：2024-06-05

- Attribute-based encryption with hidden policies in the access tree
- Journal on Communications Vol. 36, Issue 9, Pages: 119-126(2015)
- 作者机构：
  
  1. 北京交通大学计算机与信息技术学院，北京100044
  2. 信息保障技术重点实验室，北京100072
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(60973112);Discipline Construction and Graduate Education Foundation of Beijing Municipal Commission of Education(BMKY2011B06);Open Foundation of Science and Technology on In-formation Assurance Laboratory(KJ-13-02)
- DOI：10.11959/j.issn.1000-436x.2015135
  CLC： TP309.7
- Online First：2015-09，
  
  Published：25 September 2015
- 稿件说明：
移动端阅览
Yan SONG, Zhen HAN, Feng-mei LIU, et al. Attribute-based encryption with hidden policies in the access tree[J]. Journal on Communications, 2015, 36(9): 119-126.
DOI：

Yan SONG, Zhen HAN, Feng-mei LIU, et al. Attribute-based encryption with hidden policies in the access tree[J]. Journal on Communications, 2015, 36(9): 119-126. DOI： 10.11959/j.issn.1000-436x.2015135.

摘要

已有的策略隐藏属性加密（ABE

attribute-based encryption）方案只支持受限的访问结构，策略表达能力弱，基于此提出一种新的访问树结构，使属性隐藏和秘密共享能够应用到“与”门、“或”门和“门限”门中。并且，利用合数阶双线性群构造了一种基于访问树的策略隐藏方案，并通过双系统加密的概念证明了方案的安全性。分析和实验验证表明，方案在实现复杂访问结构的策略隐藏的同时，并没有过多地增加计算开销，在实际应用过程中更加灵活和有效。

Abstract

The existing policies-hidden attribute-based encryption (ABE) schemes could only support a limited access structure

which resulted in weak expressiveness.A new structure of access tree was thus proposed to integrate attribute hiding and secret sharing into “and” gate

“or” gate and “threshold” gate.Then

a tree-based policies-hidden scheme was constructed by using composite order bilinear groups.Under dual system encryption

the scheme was proved to be secure.Furthermore

the analysis and experiment demonstrate that the scheme realize policies-hidden in the complex ac-cess structure without increasing the overhead of computation.As a result

it is more feasible and flexible for applica-tions.

关键词

Keywords

references

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