# CNT-PUFs: Highly Robust and Heat-Tolerant Carbon-Nanotube-Based Physical Unclonable Functions +
[PERSON]  
1 Faculty of Computer Science and Mathematics, University of Passau, Instrasse 43, 94032 Passau, Germany; [EMAIL_ADDRESS] (F.F. ); [EMAIL_ADDRESS] (N.M.); [EMAIL_ADDRESS] (I.A.) [PERSON]  
2 Center for Microtechnologies, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz, Germany; [EMAIL_ADDRESS] (S.B. ); [EMAIL_ADDRESS] (A.M.); [EMAIL_ADDRESS] (M.H.J. ); [EMAIL_ADDRESS] (H.K. ); [EMAIL_ADDRESS] (C.H.) [PERSON]  
2 Center for Microtechnologies, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz, Germany; [EMAIL_ADDRESS] (S.B. ); [EMAIL_ADDRESS] (A.M.); [EMAIL_ADDRESS] (M.H.J. ); [EMAIL_ADDRESS] (H.K. ); [EMAIL_ADDRESS] (C.H.) [PERSON]  
2 Center for Microtechnologies, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz, Germany; [EMAIL_ADDRESS] (S.B. ); [EMAIL_ADDRESS] (A.M.); [EMAIL_ADDRESS] (M.H.J. ); [EMAIL_ADDRESS] (H.K. ); [PERSON] (C.H.) [PERSON]
1 Faculty of Computer Science and Mathematics, University of Passau, Instrasse 43, 94032 Passau, Germany; [PERSON]S] (F.F. ); [EMAIL_ADDRESS] (N.M.); [EMAIL_ADDRESS] (N.M.); [EMAIL_ADDRESS] (I.A.) Center for Microtechnologies, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz, Germany; [EMAIL_ADDRESS] (S.B. ); [EMAIL_ADDRESS] (A.M.); [EMAIL_ADDRESS] (M.H.J. ); [EMAIL_ADDRESS] (H.K. ); [PERSON] (C.H.) Molen Arul
1 Faculty of Computer Science and Mathematics, University of Passau, Instrasse 43, 94032 Passau, Germany; [EMAIL_ADDRESS] (F.F. ); [EMAIL_ADDRESS] (N.M.); [PERSON]
Center for Microtechnologies, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz, Germany; [EMAIL_ADDRESS] (S.B. ); [EMAIL_ADDRESS] (A.M.); [EMAIL_ADDRESS] (M.H.J. ); [EMAIL_ADDRESS] (H.K. ); [PERSON] (C.H.) Center for Microtechnologies, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz, Germany; simon.bootger@zfm.tu-chemnitz.deconsumption, and the implementation of further functionalities. In this context, nanodevices based on nanomaterials utilising the Complementary Metal-Oxide-Semiconductor (CMOS) technology find increasing attention, reflecting trends in semiconductor development roadmaps. In particular, multifunctional materials are preferred because they can take over multiple tasks in such systems, allowing for cost-efficient and parallel integration. Promising nanomaterials to fulfil these requirements are single-walled Carbon Nanotubes (CNTs)--hollow cylinders consisting of sp\({}^{2}\) hybridised carbon atoms in a hexagonal arrangement. Depending on the orientation between their tube axis and the underlying crystal lattice, they are either electrically conducting (metallic) or semiconducting. CNTs have already proven their capabilities for post-silicon electronics [10], as well as for gas, chemical, or bio-sensors [11], enabled due to their high intrinsic charge carrier mobility [12], high current carrying capacity, and mono-atomic surface [13]. At the same time, multi-walled CNTs can be utilised in hydrogels and aerogels in order to provide electromagnetic interference shielding [14; 15; 16]. In general, major achievements in technology integration have led to the ability to manufacture CNTs in scalable and CMOS-compatible procedures. This advancement has, in turn, resulted in major breakthroughs in the development of key electronic components, such as energy-efficient sub-10 nm Field-Effect Transistors (FETs) [17], record-speed nanotube-based random-access memory storage devices [18], and analogue high-performance radio frequency transistors [10]. In such a FET configuration, CNTs can even take over security tasks, which are highly demanded for the described heterogeneous system architectures. The interconnection of these novel devices and the transfer and storage of security-sensitive data necessitate strong cryptographic measures relying on robust and secure keys, like hardware-security anchors derived from Physical Unclonable Functions (PUFs).