8 papers · 1 filter
On Controlling the Effect of Error Growth in Unlimited Encrypted Iterative Learning Control
Sangwon Lee, Junsoo Kim
This paper proposes a Ring Learning With Errors (Ring-LWE) based encrypted iterative learning control (ILC) framework for repetitive tracking tasks over networked control systems.…
Taking Advantage of Rational Canonical Form for Faster Ring-LWE based Encrypted Controller with Recursive Multiplication
Donghyeon Song, Yeongjun Jang, Joowon Lee +1
This paper aims to provide an efficient implementation of encrypted linear dynamic controllers that perform recursive multiplications on a Ring-Learning With Errors (Ring-LWE) base…
Sensor Attack Detection Method for Encrypted State Observers
Yeongjun Jang, Sangwon Lee, Junsoo Kim
This paper proposes an encrypted state observer that is capable of detecting sensor attacks without decryption. We first design a state observer that operates over a finite field o…
Stabilization by Controllers Having Integer Coefficients
Joowon Lee, Donggil Lee, Junsoo Kim
The system property of ``having integer coefficients,'' that is, a transfer function has an integer monic polynomial as its denominator, is significant in the field of encrypted co…
Documentation on Encrypted Dynamic Control Simulation Code using Ring-LWE based Cryptosystems
Yeongjun Jang, Joowon Lee, Junsoo Kim
Encrypted controllers offer secure computation by employing modern cryptosystems to execute control operations directly over encrypted data without decryption. However, incorporati…
Ring-LWE based encrypted controller with unlimited number of recursive multiplications and effect of error growth
Yeongjun Jang, Joowon Lee, Seonhong Min +3
In this paper, we propose an encrypted dynamic controller that executes an unlimited number of recursive homomorphic multiplications on a Ring Learning With Errors (Ring-LWE) based…