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Online First:2021-02,
Published:15 February 2021
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Jian SHEN, Tianqi ZHOU, Chen WANG, et al. Privacy protection key distribution protocol for edge computing[J]. Chinese Journal of Network and Information Security, 2021, 7(1): 93-100.
Jian SHEN, Tianqi ZHOU, Chen WANG, et al. Privacy protection key distribution protocol for edge computing[J]. Chinese Journal of Network and Information Security, 2021, 7(1): 93-100. DOI: 10.11959/j.issn.2096-109x.2021010.
针对边缘计算多应用场景下的隐私保护问题,提出两种基于策略的密钥分配协议,所提出的协议基于约束伪随机函数的概念分别实现了轻量高效和灵活细粒度的策略选择。具体来说,基于GGM伪随机数生成器,构建前缀谓词策略的密钥分配协议,该协议可有效支持轻量高效的密钥分配,适用于单一网络环境下设备资源受限的应用场景。在此基础上,基于多线性对,构建位固定谓词策略的密钥分配协议,该协议可支持灵活细粒度的策略选择,适用于异构网络动态灵活的多设备场景。最后,通过形式化证明分析所提出协议的安全性。
Aiming at the privacy protection problem in the multi-application scenarios of edge computing
two policy-based key distribution protocols were proposed.The proposed protocols are based on the concept of constrained pseudo-random functions to achieve efficient and flexible policy selection.Specifically
based on the GGM pseudo-random number generator
the key distribution protocol with a prefix-predicate is constructed
which can effectively support lightweight and efficient key distribution.Moreover
based on the multilinear pairing
the key distribution protocol with a bit fixing predicate is constructed.This protocol can support flexible and fine-grained strategy selection and is suitable for dynamic and flexible multi-device scenarios in heterogeneous networks.Finally
the security proof of the proposed protocols is presented.
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