A novel design method for discrete time chaos based true random number generators

Discrete time chaos based true random number generators are lightweight cryptographic primitives that offer scalable performance for the emerging low power mobile applications. In this work, a novel design method for discrete time chaos based true random number generators is developed using skew ten...

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Bibliographic Details
Published in:Integration (Amsterdam) 2014-01, Vol.47 (1), p.38-47
Main Authors: Cicek, Ihsan, Pusane, Ali Emre, Dundar, Gunhan
Format: Article
Language:English
Subjects:
Applied sciences
Chaos theory
Circuit design
Cryptography
Discrete time chaos
Dynamical systems
Dynamics
Electronics
Exact sciences and technology
Generators
Information theory
Information, signal and communications theory
Integrated circuits
Integrated circuits by function (including memories and processors)
Mathematical analysis
Mathematical models
Random numbers
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal and communications theory
Telecommunications and information theory
True random number generator
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Summary:Discrete time chaos based true random number generators are lightweight cryptographic primitives that offer scalable performance for the emerging low power mobile applications. In this work, a novel design method for discrete time chaos based true random number generators is developed using skew tent map as a case study. Optimum parameter values yielding maximum randomness are calculated using a mathematical model of true random number generator. A practical information measure is used to determine the maximum allowable parameter variation limits. Appropriate mapping between dynamic system and circuit parameters is established and a current mode skew tent map circuit is designed to validate proposed method. •A design method for discrete time chaotic true random number generators is proposed.•Optimum parameter values for maximum entropy generation are theoretically calculated.•We study parameter variation effects on the randomness using T-entropy.•We calculate maximum allowable parameter deviation limits that enable high entropy.•A proof of concept circuit is designed and simulated to validate proposed approach.
ISSN:0167-9260
1872-7522
DOI:10.1016/j.vlsi.2013.06.003