Paper Info
Title
Large universe decentralized key-policy attribute-based encryption
Abstract
AbstractIn multi-authority attribute-based encryption ABE systems, each authority manages a different attribute universe and issues the private keys to users. However, the previous multi-authority ABE schemes are subject to such restrictions during initializing the systems: either the attribute universe is polynomially sized and the attributes have to be enumerated or the attribute universe can be exponentially large, but the size of the set of attributes, which will be used in encryption, is not more than a predefined fixed value. These restrictions prevent multi-authority ABE schemes from being deployed in dynamic practice applications. In this paper, we present a large universe decentralized key-policy ABE scheme without such additional limitation. In our scheme, there is no requirement of any central authority. Each attribute authority executes independently from the others and can join or depart the system allodiality. Our system supports any monotone access policy. The proposed scheme is constructed on prime order groups and proved selectively secure in the standard model. To the best of our knowledge, our scheme is the first large universe decentralized key-policy ABE system in the standard model. Copyright © 2014 John Wiley & Sons, Ltd.
Year
DOI
Venue
2015
10.1002/sec.997
Periodicals
Keywords
Field
DocType
KP-ABE,large universe,multi-authority,decentralized
Prime (order theory),Computer security,Computer science,Central authority,Attribute-based encryption,Encryption,Universe,Initialization,Key policy,Monotone polygon
Journal
Volume
Issue
ISSN
8
3
1939-0114
Citations 
PageRank 
References 
9
0.48
16
Authors
5
Name
Order
Citations
PageRank
Qi Li1475.46
Jianfeng Ma2120789.64
Rui Li3352.19
Jinbo Xiong418029.89
Ximeng Liu530452.09