SHERP

Securing Networked Control System with Homomorphic Authenticated Encryptions

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Authors
이지은
Advisor
천정희
Major
자연과학대학 수리과학부
Issue Date
2017
Publisher
서울대학교 대학원
Keywords
동형암호인증
Description
학위논문 (석사)-- 서울대학교 대학원 : 수리과학부, 2017. 2. 천정희.
Abstract
Enhancing the security of the control system is necessary since it can directly cause physical problems in real world. It is important to protect the controller itself and the signal between the controller and the plant since an attacker can steal or manipulate it during the process. There is a paper proposing a solution to prevent the data from stealing. They use fully homomorphic encryption (FHE) to secure the controller. However, even though the attacker can not steal the signal, he or she still can manipulate the signal or break the system. In this paper, we propose a homomorphic authenticated encryption(HAE) scheme which can enable the plant to verify whether the input data is correctly evaluated. By using the label, discrete fourier transform(DFF) and ring learning with errors(RLWE), we can protect the data from the stealing and manipulating. Furthermore, we implement the scheme with quadruple water tank model.
Language
English
URI
http://hdl.handle.net/10371/131514
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College of Natural Sciences (자연과학대학)Dept. of Mathematical Sciences (수리과학부)Theses (Master's Degree_수리과학부)
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