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Cryptographic switching functions for multiplicative watermarking in cyber-physical systems

Journal Article (2022)
Author(s)

Alexander J. Gallo (TU Delft - Team Riccardo Ferrari)

Riccardo M.G. Ferrari (TU Delft - Team Riccardo Ferrari)

Research Group
Team Riccardo Ferrari
DOI related publication
https://doi.org/10.1016/j.ifacol.2022.07.164 Final published version
More Info
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Publication Year
2022
Language
English
Research Group
Team Riccardo Ferrari
Issue number
6
Volume number
55
Pages (from-to)
414-419
Event
11th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, SAFEPROCESS 2022 (2022-06-08 - 2022-06-10), Pafos, Cyprus
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217
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Abstract

In this paper we present a novel switching function for multiplicative watermarking systems. The switching function is based on the algebraic structure of elliptic curves over finite fields. The resulting function allows for both watermarking generator and remover to define appropriate system parameters, sharing only limited information, namely a private key. We prove that the resulting watermarking parameters lead to a stable watermarking scheme.