Secure and Private Implementation of Dynamic Controllers Using Semihomomorphic Encryption

Murguia, Carlos; Farokhi, Farhad; Shames, Iman

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Secure and Private Implementation of Dynamic Controllers Using Semihomomorphic Encryption

Date

2020

Authors

Murguia, Carlos

Farokhi, Farhad

Shames, Iman

Abstract

This article presents a secure and private implementation of linear time-invariant dynamic controllers using Paillier's encryption, a semihomomorphic 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.