IEEE Control Systems Letters · 2018 · 85 citations · 16 references
ComputingComputer ScienceCybersecurityCryptographyDistributed SystemsPrivacy EngineeringCryptographic AlgorithmsData EncryptionHomomorphic EncryptionPrivacy-preserving ProtocolsSecret SharingSecure Data SharingConsensus In Multi-agent SystemsCooperative ControlDistributed Cooperative ControlEncrypted Data SharingEncrypted Data TransmissionPartially Homomorphic EncryptionPrivacy-preserving Cryptography
Cooperative control for multi-agent systems usually requires some communication between the various subsystems. In the resulting networked control system, sensitive data is transmitted and shared between the agents. We propose a novel encrypted control scheme that ensures privacy of the individual agents’ data not only during transmission but also during controller evaluations at neighboring agents. Our control scheme efficiently combines the design of structured feedback laws for multi-agent systems with encrypted controllers for conventional linear systems. The underlying key technology is partial homomorphic encryption, which allows simple computations to be carried out on encrypted data.
16