Title
Multi-authority attribute-based encryption scheme with constant-size ciphertexts and user revocation.
Abstract
Ciphertext-policy attribute-based encryption (CP-ABE) is regarded as one of the most suitable technologies for data access control in cloud storage system. It gives data owners direct and flexible control on access policies. However, there still exists practicality concerns in CP-ABE applications, for example, the key escrow problem, user revocability, and large ciphertext size. Considering these problems, we propose a multi-authority attribute-based encryption scheme with constant-size ciphertexts and user revocation for threshold access policy in this paper. The security proof shows that the proposed scheme is selectively secure under the augmented multi-sequence of exponents decisional Diffie-Hellman assumption, and it also achieves forward security, backward security, and collusion-resistance.
Year
DOI
Venue
2019
10.1002/cpe.4678
CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE
Keywords
DocType
Volume
ciphertext-policy attribute-based encryption,multi-authority attribute-based encryption,threshold access policy,user revocation
Journal
31.0
Issue
ISSN
Citations 
SP21.0
1532-0626
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Xiao Zhang142.77
Faguo Wu202.37
Wang Yao311.02
Zhao Wang400.34
wenhua wang531.06