Attribute hiding subset predicate encryption: Quantum-resistant construction with efficient decryption

IF 4.1 2区计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Computer Standards & Interfaces Pub Date : 2023-10-26 DOI:10.1016/j.csi.2023.103796

Yi-Fan Tseng

引用次数: 0

Abstract

Predicate encryption is well studied due to its flexibility in supporting fine-grained access control. In Katz et al. (2018) proposed a predicate encryption for a new predicate family, called subset predicate encryption. In such a scheme, a ciphertext and a private key are associated with sets. A private key can successfully decrypt a ciphertext if and only if the set for the private key is a subset of the set for the ciphertext. However, we found that, all the existing schemes are not able to hide the sets associated to ciphertexts, i.e., the information of receivers will be revealed. To enhance the privacy for receivers, we proposed the first subset predicate encryption schemes with weakly attribute hiding. Moreover, our first scheme is constructed over lattices, which is believed to be secure against quantum computers. The security of our scheme is formally proven in the standard model under well-studied complexity assumptions.

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属性隐藏子集谓词加密:具有有效解密的抗量子构造

谓词加密由于其支持细粒度访问控制的灵活性而得到了很好的研究。在Katz等人(2018)提出了一种新的谓词族的谓词加密，称为子集谓词加密。在这种方案中，密文和私钥与集合相关联。当且仅当私钥集是密文集的子集时，私钥才能成功解密密文。然而，我们发现，现有的所有方案都不能隐藏与密文相关的集合，即会泄露接收者的信息。为了提高接收者的隐私性，我们提出了第一个弱属性隐藏的子集谓词加密方案。此外，我们的第一个方案是在晶格上构建的，这被认为对量子计算机是安全的。在经过充分研究的复杂性假设下，在标准模型中正式证明了该方案的安全性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Computer Standards & Interfaces 工程技术-计算机：软件工程

CiteScore

11.90

自引率

16.00%

发文量

审稿时长

6 months

期刊介绍： The quality of software, well-defined interfaces (hardware and software), the process of digitalisation, and accepted standards in these fields are essential for building and exploiting complex computing, communication, multimedia and measuring systems. Standards can simplify the design and construction of individual hardware and software components and help to ensure satisfactory interworking. Computer Standards & Interfaces is an international journal dealing specifically with these topics. The journal • Provides information about activities and progress on the definition of computer standards, software quality, interfaces and methods, at national, European and international levels • Publishes critical comments on standards and standards activities • Disseminates user''s experiences and case studies in the application and exploitation of established or emerging standards, interfaces and methods • Offers a forum for discussion on actual projects, standards, interfaces and methods by recognised experts • Stimulates relevant research by providing a specialised refereed medium.