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Secure and Private Implementation of Dynamic Controllers Using Semi-Homomorphic Encryption (1812.04168v2)

Published 11 Dec 2018 in math.OC, cs.CR, and cs.SY

Abstract: This paper presents a secure and private implementation of linear time-invariant dynamic controllers using Paillier's encryption, a semi-homomorphic encryption method. To avoid overflow or underflow within the encryption domain, the state of the controller is reset periodically. A control design approach is presented to ensure stability and optimize performance of the closed-loop system with encrypted controller.

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