79 citations · 199 across the 10 of their papers we have counts for
8 papers · 1 filter
Further methods for encrypted linear dynamic controllers utilizing re-encryption
Junsoo Kim
Homomorphic encryption (HE) applied to a networked controller enables secure operation, but in most cases it allows for addition and multiplication over integers only, because of c…
Encrypted Dynamic Control exploiting Limited Number of Multiplications and a Method using RLWE-based Cryptosystem
Joowon Lee, Donggil Lee, Junsoo Kim +1
In this paper, we present a method to encrypt dynamic controllers that can be implemented through most homomorphic encryption schemes, including somewhat, leveled fully, and fully…
Toward nonlinear dynamic control over encrypted data for infinite time horizon
Junsoo Kim, Farhad Farokhi, Iman Shames +1
Recent studies on encrypted control using homomorphic encryption allow secure operation by directly performing computations on encrypted data without decryption. Implementing dynam…
Homomorphic Encryption-Enabled Distance-Based Distributed Formation Control with Distance Mismatch Estimators
Mariano Perez Chaher, Bayu Jayawardhana, Junsoo Kim
This paper considers the use of fully homomorphic encryption for the realisation of distributed formation control of multi-agent systems via edge computer. In our proposed framewor…
Fully Distributed Resilient State Estimation based on Distributed Median Solver
Jin Gyu Lee, Junsoo Kim, Hyungbo Shim
In this paper, we present a scheme of fully distributed resilient state estimation for linear dynamical systems under sensor attacks. The proposed state observer consists of a netw…
Dynamic controller that operates over homomorphically encrypted data for infinite time horizon
Junsoo Kim, Hyungbo Shim, Kyoohyung Han
In this paper, we present a dynamic feedback controller that computes the next state and the control signal over encrypted data using homomorphic properties of cryptosystems, whose…
Comprehensive Introduction to Fully Homomorphic Encryption for Dynamic Feedback Controller via LWE-based Cryptosystem
Junsoo Kim, Hyungbo Shim, Kyoohyung Han
The cryptosystem based on the Learning-with-Errors (LWE) problem is considered as a post-quantum cryptosystem, because it is not based on the factoring problem with large primes wh…
Detection of Sensor Attack and Resilient State Estimation for Uniformly Observable Nonlinear Systems having Redundant Sensors
Junsoo Kim, Chanhwa Lee, Hyungbo Shim +2
This paper presents a detection algorithm for sensor attacks and a resilient state estimation scheme for a class of uniformly observable nonlinear systems. An adversary is supposed…