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InfoResearchPeer-reviewed
ENClose: Encrypted Nonlinear Closed-Loop Control Over Fully Homomorphic Encryption
- Published
- Record updated
Summary
ENClose is an encrypted controller framework for nonlinear closed-loop control systems built on fully homomorphic encryption (FHE). It accelerates functional bootstrapping (FBS) through function segmentation and tree-based encrypted selection, which also limits ciphertext noise accumulation in feedback loops. Experiments report a 3× to 20× speedup over state-of-the-art encrypted controllers, validated on multi-vehicle formation, spring–mass–damper control and anomaly recovery.