In-Network Encryption for Secure Industrial Control Systems Communications

In this manuscript, we present a solution to provide secure communication in Industry 4.0 environments. Legacy ICS components that do not have encryption capabilities will be able to communicate using secured channels by means of P4 programmable switches that implement security in the data plane. We will compare the proposed solution with TLS end-to-end encryption, showing that it offers similar performance with no need to interact with the end hosts.