Analog circuits for physical cryptography
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SubjectSkew memory; Physical cryptography; Public key cryptography; Cellular nonlinear networks (CNN); Physical unclonable functions (PUF)
This paper presents circuit designs to be used as 'public-key' Physical Uncloneable Functions. We will introduce two specially designed circuits: 'skew' memories and massively parallel analog processor arrays (CNNs). We show that such circuits - which are possible to simulate but computationally outperform any feasible digital and hardware-assisted emulation - can be used to remotely and securely identify their owner and serve as a basis for various cryptographic protocols.
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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 ...