Lightweighted Secure Searching Over Public-Key Ciphertexts for Edge-Cloud-Assisted Industrial IoT Devices

Lightweighted Secure Searching Over Public-Key Ciphertexts for Edge-Cloud-Assisted Industrial IoT Devices
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针对边缘云辅助工业物联网设备的公钥密文的轻量级安全搜索

DOI:
10.1109/tii.2019.2950295
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发表时间:
2020-06
影响因子:
12.3
通讯作者:
Yan Zheng
Yan Zheng
中科院分区:
计算机科学1区
文献类型:
--
作者:
Wang Wei;Xu Peng;Liu Dongli;Yang Laurence Tianruo;Yan Zheng

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对于工业物联网(IIoT),具有关键字搜索的公钥加密(PEKS)是一种适用且有前途的加密技术,可用于维护存储在云中的数据的安全性和可搜索性。为了进一步提高搜索效率,在IIoT附近引入边缘计算作为云的替代品是很流行的。然而,这两种技术的直接合作在延迟敏感的应用中表现不佳,因为IIoT设备对PEKS的缓慢加密否定了边缘的即时反应。为了应对这一挑战,在本文中,我们利用边缘云架构的能力,提出了一种轻量级设计的方案,称为边缘辅助可搜索公钥加密(ESPE)。它允许IIoT设备将其昂贵的加密操作委托给附近的边缘进行快速计算,并保证所有外包密文在语义上是安全的。因此,ESPE加速了边缘上的相应密文过程,并节省了IIoT设备70%以上的加密成本。
For the industrial Internet of Things (IIoT), public-key encryption with keyword search (PEKS) is a type of applicable and promising encryption technique to maintain the data stored in clouds secure and searchable. To further improve the efficiency of searching, it is popular to introduce edge computing near the IIoT as the substitute for a cloud. However, the straightforward collaboration of the two techniques performs negatively in latency-sensitive applications since the sluggish encryption of PEKS by IIoT devices negates the instant reaction of edges. To meet this challenge, in this article, we exploit the capability of the edge-cloud architecture and propose a lightweight-designed scheme called edge-aided searchable public-key encryption (ESPE). It allows IIoT devices to delegate their costly cryptographic operations to the nearby edge for fast computing and guarantees that all outsourced ciphertexts are semantically secure. Consequently, ESPE accelerates the corresponding ciphertext procedures on edges and saves over 70% encryption cost of an IIoT device.
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