Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74290
Title: Fuzzy matching and direct revocation : a new CP-ABE scheme from multilinear maps
Authors: Wang, H 
He, D
Shen, J
Zheng, Z
Yang, X
Au, MH 
Keywords: CP-ABE
Directly revocable
Multilinear map
Random oracle
Verifiable ciphertext delegation
Issue Date: 2018
Publisher: Springer
Source: Soft computing, 2018, v. 22, no. 7, p. 2267-2274 How to cite?
Journal: Soft computing 
Abstract: In the attribute-based encryption (ABE) systems, users could encrypt and decrypt messages based on some attributes or access policies. Due to the functionality and flexibility of ABE, it is considered to be very suitable for secure data sharing in cloud storage environment. However, in the real world, users’ access rights are often dynamicMergeCell therefore, we need ABE schemes to support revocation to meet this requirement. In this work, we construct a novel directly revocable ciphertext-policy ABE (DR-CP-ABE) scheme based on the multilinear maps and prove its selective security under (Formula presented.)-multilinear decisional Diffie–Hellman assumption in the random oracle model. In addition, we extend our DR-CP-ABE scheme to support verifiable ciphertext delegation property.
URI: http://hdl.handle.net/10397/74290
ISSN: 1432-7643
DOI: 10.1007/s00500-017-2488-8
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