Speeding Up Encryption on IoT Devices Using Homomorphic Encryption

2021 IEEE International Conference on Smart Computing (SMARTCOMP) Pub Date : 2021-08-01 DOI:10.1109/SMARTCOMP52413.2021.00059

Marin Matsumoto, M. Oguchi

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引用次数: 5

Abstract

What do we need to do to protect our personal information? IoT devices such as smartphones, smart watches, and home appliances are widespread. Encryption is required not only to prevent eavesdropping on communications but also to prevent information leakage from cloud services due to unauthorized access. Therefore, attention is being paid to fully homomorphic encryption (FHE) that allows addition and multiplication between ciphertexts. However, FHE with this convenient function has a drawback that the encryption requires huge volume of calculation and the ciphertext is large. Therefore, if FHE is used on a device with limited computational resources such as an IoT device, the load on the IoT device will be too heavy. In this research, we propose a system that can safely and effectively utilize data without imposing a load on IoT devices. In this system, somewhat homomorphic encryption (SHE), which is a lightweight cryptosystem compared with FHE, is combined with FHE. The results of the experiment confirmed that the load on the IoT device can be reduced to approximately 1/1400 compared to load of the system from previous research.

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使用同态加密加速物联网设备的加密

我们需要做些什么来保护我们的个人信息?智能手机、智能手表、家电等物联网设备随处可见。加密不仅是为了防止通信被窃听，也是为了防止未经授权访问云服务导致信息泄露。因此，人们关注的是完全同态加密(FHE)，它允许密文之间的加法和乘法。然而，具有这种方便功能的FHE有一个缺点，即加密需要巨大的计算量和密文量。因此，如果在物联网设备等计算资源有限的设备上使用FHE，将会导致物联网设备的负载过重。在本研究中，我们提出了一个可以安全有效地利用数据而不会对物联网设备施加负载的系统。在该系统中，与FHE相比，SHE是一种轻量级的密码系统，它与FHE相结合。实验结果证实，与之前研究的系统负载相比，物联网设备上的负载可以减少到大约1/1400。

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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2021 IEEE International Conference on Smart Computing (SMARTCOMP)

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