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Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/138319

Title:	Private Predicate Encryption for Inner Product from Key-Homomorphic Pseudorandom Function
Authors:	左瑞麟;曾一凡 Tso, Raylin;Tseng, Yi-Fan;Liu, Zi-Yuan;Hsu, Jen-Chieh
Contributors:	資科系
Date:	2021-02
Issue Date:	2021-12-23 15:39:27 (UTC+8)
Abstract:	Predicate encryption (PE), formalized by Katz et al., is a new paradigm of public-key encryption that conceptually captures the public-key encryption that supports fine-grained access control policy. Because of the nature of PE, it is used for cloud storage so that users can retrieve encrypted data without revealing any information about the data to cloud servers and other users. Although lots of PE schemes have been studied, the predicate-hiding security is seldom considered; that is, the user’s secret key may leak sensitive information of the predicate. Additionally, the security of the current predicate-hiding PE schemes relies on the discrete logarithm assumption which cannot resist the quantum attacks in the future. In this paper, we propose a generic PE for inner product under symmetric-key setting, called private IPE, from specific key-homomorphic pseudorandom function (PRF). The rigorous proofs are provided to show that the construction is payload-hiding, attribute-hiding, and predicate-hiding secure. With the advantage of the generic construction, if the underlying PRF can resist quantum attacks, then, through our proposed generic construction, a quantum-resistant private IPE can be obtained.
Relation:	Security and Communication Networks, Vol.2021, pp.1-12
Data Type:	article
DOI link:	https://doi.org/10.1155/2021/6678194
DOI:	10.1155/2021/6678194
Appears in Collections:	[Department of Computer Science ] Periodical Articles

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