TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Scholz, Alexander A1 - Zimmermann, Lukas A1 - Gengenbach, Ulrich A1 - Koker, Liane A1 - Chen, Zehua A1 - Hahn, Horst A1 - Sikora, Axel A1 - Tahoori, Mehdi Baradaran A1 - Aghassi-Hagmann, Jasmin T1 - Hybrid low-voltage physical unclonable function based on inkjet-printed metal-oxide transistors JF - Nature Communications N2 - Modern society is striving for digital connectivity that demands information security. As an emerging technology, printed electronics is a key enabler for novel device types with free form factors, customizability, and the potential for large-area fabrication while being seamlessly integrated into our everyday environment. At present, information security is mainly based on software algorithms that use pseudo random numbers. In this regard, hardware-intrinsic security primitives, such as physical unclonable functions, are very promising to provide inherent security features comparable to biometrical data. Device-specific, random intrinsic variations are exploited to generate unique secure identifiers. Here, we introduce a hybrid physical unclonable function, combining silicon and printed electronics technologies, based on metal oxide thin film devices. Our system exploits the inherent randomness of printed materials due to surface roughness, film morphology and the resulting electrical characteristics. The security primitive provides high intrinsic variation, is non-volatile, scalable and exhibits nearly ideal uniqueness. Y1 - 2020 UN - https://nbn-resolving.org/urn:nbn:de:bsz:ofb1-opus4-43361 SN - 2041-1723 SS - 2041-1723 U6 - https://doi.org/10.1038/s41467-020-19324-5 DO - https://doi.org/10.1038/s41467-020-19324-5 VL - 11 SP - 1 EP - 11 S1 - 11 PB - Springer Nature ER -