Open Access
ARTICLE
Authorized Attribute-Based Encryption Multi-Keywords Search with Policy Updating
Muqadar Ali, Chungen Xu*, Abid Hussain
Department of Mathematics, School of Science, Nanjing University of Science and Technology, Nanjing, 210094, China
* Corresponding Author: Chungen Xu. Email:
Journal of New Media 2020, 2(1), 31-43. https://doi.org/10.32604/jnm.2020.09946
Received 03 February 2020; Accepted 08 February 2020; Issue published 14 August 2020
Abstract
Attribute-based encryption is cryptographic techniques that provide
flexible data access control to encrypted data content in cloud storage. Each trusted
authority needs proper management and distribution of secret keys to the user’s to
only authorized user’s attributes. However existing schemes cannot be applied
multiple authority that supports only a single keywords search compare to multi
keywords search high computational burden or inefficient attribute’s revocation. In
this paper, a ciphertext policy attribute-based encryption (CP-ABE) scheme has
been proposed which focuses on multi-keyword search and attribute revocation by
new policy updating feathers under multiple authorities and central authority. The
data owner encrypts the keywords index under the initial access policy. Moreover,
this paper addresses further issues such as data access, search policy, and
confidentiality against unauthorized users. Finally, we provide the correctness
analysis, performance analysis and security proof for chosen keywords attack and
search trapdoor in general group model using DBDH and DLIN assumption.
Keywords
Cite This Article
M. Ali, C. Xu and A. Hussain, "Authorized attribute-based encryption multi-keywords search with policy updating,"
Journal of New Media, vol. 2, no.1, pp. 31–43, 2020.