Applications of high-capacity crossbar memories in cryptography
MetadataShow full item record
SubjectPhysical cryptography; Physical unclonable function (PUF); Nonvolatile memories; Crossbar memories
This paper proposes a new approach for the construction of highly secure physical unclonable functions (PUFs). Instead of using systems with medium information content and high readout rates, we suggest to maximize the information content of the PUF while strongly reducing its readout frequency. We show that special, passive crossbar arrays with a very large random information content and inherently limited readout speed are suited to implement our approach. They can conceal sensitive information over long time periods and can be made secure against invasive physical attacks. To support our feasibility study, circuit-level simulations and experimental data are presented. Our design allows the first PUFs that are secure against computationally unrestricted adversaries, and which remain so in the face of weeks or even years of uninterrupted adversarial access. We term the new design principle a SHIC PUF, where the acronym SHIC stands for super high information content. © 2010 IEEE.
Showing items related by title, author, creator and subject.
Lugli P; Mahmoud A; Csaba G; Algasinger M; Stutzmann M; Ruhrmair U (WILEY-BLACKWELL, 2013)Due to their attractive, regular structure and their simple implementation, crossbar arrays have become one major emerging research area in the fields of nano-devices and electronic circuits. This paper discusses novel ...
Csaba G; Ju X; Ma Z; Chen Q; Porod W; Schmidhuber J; Schlichtmann U; Lugli P; Rührmair U (IEEE, 2010)This paper proposes the use of Cellular Non-Linear Networks (CNNs) as physical uncloneable functions (PUFs). We argue that analog circuits offer higher security than existing digital PUFs and that the CNN paradigm allows ...
Chen Q; Csaba G; Lugli P; Schlichtmann U; Rührmair U (IEEE, 2011)This paper introduces a new architecture for circuit-based Physical Unclonable Functions (PUFs) which we call the Bistable Ring PUF (BR-PUF). Based on experimental results obtained from FPGA-based implementations of the ...