Project Details
Projekt
Exploration of an integrated Strain-based TAMPer Sensor for Puf and trng concepts with best-in-class Leakage resilience and robUStness (STAMPS-PLUS)
Subject Area
Electronic Semiconductors, Components and Circuits, Integrated Systems, Sensor Technology, Theoretical Electrical Engineering
Term
since 2020
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 439916248
Starting from the results of the DFG project STAMPS we aim to expand the research into the new areas of PUF-instabilities under manufacturing, noise, environmental and aging effects, and extend the PUF concept developed to be robust against such variations. We plan to investigate other state-of-the-art CMOS-based PUF primitives, and compare their properties regarding error rate, attack vectors, and tamper detection capabilities to the concept proposed here. To reach a practical level of robustness for our PUF and tampering solution, we plan to enhance circuit design strategies to counter supply voltage fluctuations, temperature drifts, strain, and aging effects. Additional focus will be on tampering attacks on CMOS based PUF-primitives to evaluate their security level and to develop countermeasures against a wide range of potential attacks. We will research new analysis techniques based on electrical and optical methods and work on new methods for selective package opening. We will also consider the security of the STAMPS PUF primitive in the context of a complete system in which it might be integrated. Going beyond secure key storage, high-quality random numbers are another pre-requisite for secure embedded devices, for example for asymmetric cryptographic protocols, nonces in authenticated encryption, or randomness for masked implementations. The time dependent entropy, which needs to be removed for the PUF, may be directly used to build True Random Number Generators (TRNGs). We plan to investigate our new PUF primitive from STAMPS for its suitability of being used as a TRNG. The randomness of the received data needs to be evaluated and models for the PUF and TRNG entropy source must be built. Combining the complementary research experiences of a security-oriented and circuit-oriented group, in the collaborative project STAMPS has resulted in an innovative technology and has triggered many new insights inspired by both groups. Deepening the collaboration and adding an additional group in STAMPS-PLUS will support maturing the PUF primitive from STAMPS, deepen the insights, and broaden the understanding for the new technology.
DFG Programme
Priority Programmes
