One essential security requirement for building solid system security infrastructure is to have all relevant units securely identified and unclonable. In this work we introduce a further extension for the recently introduced bio-inspired e-DNA technology to realize a practical clone-resistant identity for electronic devices. In difference to the costly, relatively inconsistent physical unclonable functions PUFs which deploy physical unclonable properties, the proposed e-DNA is only practically clone-resistant. The proposed identification technique is more reliable in reproducing identity than that of the PUFpsilas structure. In contrary to PUFpsilas with their non-practical voltage and temperature sensitive properties, the proposed technique uses usual reproducible properties. The infeasibility of cloning the proposed evolving e-DNA structures relies on the extreme difficulty to follow-up the evolving/living a secret unknown identity marker which is seen as an e-DNA. The marker is hard to trace as it is unknown to anybody and unreadable. It is made time variant and thus practically hard to trace in a real world application. The paper demonstrates a sample scenario with mechanisms for creating and managing such living and evolving identity. System units can be mutually identified in a global environment by using relatively low-cost secret key cryptographic techniques. The central trusted authority can manage a dynamic number of units and resolve successful attacks efficiently.
['Wael Adi', 'Bassel Soudan']
Globally verifiable clone-resistant device identity with mutual authentication