Comparison and performance analysis of dynamic encrypted control approaches

• URL: http://arxiv.org/abs/2510.17333v1
• Date: Mon, 20 Oct 2025 09:26:33 GMT
• Title: Comparison and performance analysis of dynamic encrypted control approaches
• Abstract summary: homomorphic encryption has proven to guarantee the privacy of measurement and control signals, as well as system and controller parameters, while regulating the system as intended.<n>We review recent approaches to dynamic control encrypted, such as bootstrapping, periodic resets of the controller state, integer reformulations, and FIR controllers, and equip them with a stability and performance analysis to evaluate their suitability.
• Score: 0.5371337604556311
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Encrypted controllers using homomorphic encryption have proven to guarantee the privacy of measurement and control signals, as well as system and controller parameters, while regulating the system as intended. However, encrypting dynamic controllers has remained a challenge due to growing noise and overflow issues in the encoding. In this paper, we review recent approaches to dynamic encrypted control, such as bootstrapping, periodic resets of the controller state, integer reformulations, and FIR controllers, and equip them with a stability and performance analysis to evaluate their suitability. We complement the analysis with a numerical performance comparison on a benchmark system.

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