A Conditionally Chaotic Physically Unclonable Function Design Framework with High Reliability

2021 ◽  
Vol 26 (6) ◽  
pp. 1-24
Author(s):  
Saranyu Chattopadhyay ◽  
Pranesh Santikellur ◽  
Rajat Subhra Chakraborty ◽  
Jimson Mathew ◽  
Marco Ottavi
Keyword(s):  
Lorenz System ◽  
High Reliability ◽  
Circuit Simulation ◽  
Design Framework ◽  
Chaotic Circuit ◽  
Hybrid Cmos ◽  
Function Design ◽  
Hardware Realization ◽  
Arbiter Puf ◽  
Detailed Circuit

Physically Unclonable Function (PUF) circuits are promising low-overhead hardware security primitives, but are often gravely susceptible to machine learning–based modeling attacks. Recently, chaotic PUF circuits have been proposed that show greater robustness to modeling attacks. However, they often suffer from unacceptable overhead, and their analog components are susceptible to low reliability. In this article, we propose the concept of a conditionally chaotic PUF that enhances the reliability of the analog components of a chaotic PUF circuit to a level at par with their digital counterparts. A conditionally chaotic PUF has two modes of operation: bistable and chaotic , and switching between these two modes is conveniently achieved by setting a mode-control bit (at a secret position) in an applied input challenge. We exemplify our PUF design framework for two different PUF variants—the CMOS Arbiter PUF and a previously proposed hybrid CMOS-memristor PUF, combined with a hardware realization of the Lorenz system as the chaotic component. Through detailed circuit simulation and modeling attack experiments, we demonstrate that the proposed PUF circuits are highly robust to modeling and cryptanalytic attacks, without degrading the reliability of the original PUF that was combined with the chaotic circuit, and incurs acceptable hardware footprint.

Circuit Design Contains a Class of Squared Term Lorenz Family Chaotic System

2014 ◽  
Vol 602-605 ◽  
pp. 2684-2687
Author(s):  
Yu Zhang ◽  
Chong Lou Tong ◽  
Teng Fei Lei
Keyword(s):  
Numerical Simulation ◽  
Lyapunov Exponent ◽  
Circuit Design ◽  
Chaotic System ◽  
Lorenz System ◽  
Three Dimensional ◽  
System Stability ◽  
Experimental Simulation ◽  
Chaotic Circuit ◽  
New Class

A new class of three-dimensional chaotic system is constructed by algebraic methods, which has a similar structure with the classic Lorenz system but contains the square term. The equilibrium point of the system stability is analyzed, and the numerical simulation is carried on the bifurcation diagram and Lyapunov exponent. The chaotic circuit of these systems is designed by using the software of EWB. The results of the experimental simulation verify the existence of the chaotic attractor, which provides theoretical reference to the application of such system.

Circuit Reliability Simulation

1995 ◽  
Vol 391 ◽  
Author(s):  
Chenming Hu
Keyword(s):  
Radiation Effects ◽  
Circuit Simulation ◽  
Physical Models ◽  
Design Stage ◽  
Circuit Reliability ◽  
Hot Electron ◽  
Simulation And Optimization ◽  
Design Changes ◽  
Hot Electron Effect ◽  
Detailed Circuit

AbstractIn designing a complex circuit, designers make a large number of circuit simulations, design changes and optimizations and can predict the circuit's performance reasonably accurately before committing it to silicon. It would be unthinkable to bypass detailed circuit simulation and optimization and rely on simple design rules and the testing of finished IC's to discover errors or to find out if the performance of the circuit meet specifications. Yet, this is basically the way IC reliability is treated today. A logical alternative is to predict circuit reliability at the circuit design stage through reliability simulation.Reliability simulator BERT is used to illustrate the physical models and approaches used to simulate the hot electron effect, oxide time-dependent breakdown, electromigration, bipolar transistor gain degradation, and radiation effects. The goal is to make circuit reliability simulation a part of the IC design process.

Spread Spectrum Watermarking

2010 ◽  
pp. 455-485
Author(s):  
Santi P. Maity
Keyword(s):  
Real Time ◽  
Spread Spectrum ◽  
Hardware Implementation ◽  
High Reliability ◽  
Research Work ◽  
Hardware Architecture ◽  
Future Research ◽  
Hardware Realization ◽  
Field Programmable ◽  
Research Problems

Spread spectrum (SS) watermarking has proven to be efficient, robust and cryptographically secure. Each bit of watermark information is embedded over wide spectrum of the host signal based on spectrum spreading concept of SS modulation in digital communication and can easily be integrated with many existing data transmission scheme. This has made SS watermarking method more attractive during recent times for many non-conventional applications such as broadcast monitoring, security in communication, authentication and blind assessment of quality of services (QoS) for multimedia signals in mobile radio network. These applications essentially demand development of low cost algorithms so that they can be implemented on real time system through hardware realization. Hardware realization offers advantages over software realization in terms of less area, low execution time, low power, real-time performance, high reliability and also ease of integration with existing consumer electronics devices. This chapter first presents a brief review on hardware implementation of digital watermarking algorithms, followed by development of hardware architecture for spatial domain and fast Walsh transform (FWT) domain SS watermark system design using field programmable gate array (FPGA). A brief sketch on hardware implementation for biorthogonal wavelet based Hilbert transform is also shown that may be extended to design SS watermarking based on the concept of two previous architectures. Few challenges for hardware design of watermarking algorithms are then mentioned with an objective to give an idea how to develop watermarking algorithms so that it can be implemented on hardware. The chapter ends with few open research problems on hardware architecture as scope of future research work.

The Design and Realization of a Hyper-Chaotic Circuit Based on a Flux-Controlled Memristor with Linear Memductance

2017 ◽  
Vol 27 (03) ◽  
pp. 1850038 ◽  
Author(s):  
Chunhua Wang ◽  
Ling Zhou ◽  
Renping Wu
Keyword(s):  
Chaotic System ◽  
Circuit Simulation ◽  
Piecewise Linear ◽  
Chaotic Circuit ◽  
Multiple Attractors ◽  
Dynamical Behaviors ◽  
Memristive System ◽  
Pinched Hysteresis Loop ◽  
The Lorenz System ◽  
Pinched Hysteresis

In this paper, a flux-controlled memristor with linear memductance is proposed. Compared with the memristor with piecewise linear memductance and the memristor with smooth continuous nonlinearity memductance which are widely used in the study of memristive chaotic system, the proposed memristor has simple mathematical model and is easy to implement. Multisim circuit simulation and breadboard experiment are realized, and the memristor can exhibit a pinched hysteresis loop in the voltage–current plane when driven by a periodic voltage. In addition, a new hyper-chaotic system is presented in this paper by adding the proposed memristor into the Lorenz system. The transient chaos and multiple attractors are observed in this memristive system. The dynamical behaviors of the proposed system are analyzed by equilibria, Lyapunov exponents, bifurcation diagram and phase portrait. Finally, an electronic circuit is designed to implement the hyper-chaotic memristive system.

The Effect of Dead Zone Mode on Electric Vehicle PWM Speed Control System

2014 ◽  
Vol 986-987 ◽  
pp. 1337-1341
Author(s):  
Liang Rong ◽  
Shan Jie Jia ◽  
Kui Hua Wu ◽  
Chun Mei Fu ◽  
Qing Mao Fu
Keyword(s):  
Electric Vehicle ◽  
Output Voltage ◽  
High Reliability ◽  
Circuit Simulation ◽  
Dead Zone ◽  
Duty Ratio ◽  
Motor Speed ◽  
Specific Duty ◽  
Hardware Circuit ◽  
Voltage Jump

To realize the electric vehicle braking energy recycling and driving smooth, bipolar PWM modulation mode is often adopted. To avoid the bridge arm shoot-through, a dead zone needs to be set in the complementary upper and lower bridge arm driving signal. Using hardware circuit dead zone setting has the advantages of simple setting and high reliability, is often used in the integrated driving module, however different dead zone mode has different influence on the inverter output voltage. This paper carried analysis on motor speed nonlinear problems caused by output voltage jump around a specific duty ratio in hardware dead zone setting mode, and gives the improvement of hardware circuit. Simulation and experimental results indicate that the method can well solve the output voltage jump in the vicinity of a specific duty ratio problem.

Application of Indicators for Chaos in Chaotic Circuit Systems

2016 ◽  
Vol 26 (11) ◽  
pp. 1650182 ◽  
Author(s):  
Da-Zhu Ma ◽  
Zhi-Chao Long ◽  
Yu Zhu
Keyword(s):  
Lyapunov Exponent ◽  
Numerical Experiments ◽  
Lorenz System ◽  
Hyperchaotic System ◽  
Threshold Values ◽  
Chaotic Circuit ◽  
Qualitative Properties ◽  
Regular Motion ◽  
Fast Lyapunov Indicator ◽  
The Lorenz System

Lyapunov exponent (LE), fast Lyapunov indicator (FLI), relative finite-time Lyapunov indicator (RLI), smaller alignment index (SALI), and generalized alignment index (GALI) are some of the available methods in most conservative systems. This study focuses on the effects of the above indicators on dissipative chaotic circuit systems such as the Lorenz system and a hyperchaotic model. Numerical experiments show that the performances of the chaos indicators in the hyperchaotic system are almost similar to those in the Lorenz system. These indicators clearly provide transition from chaotic to regular motion. However, FLI, RLI, SALI, and GALI cannot describe transition from chaos to hyperchaos. These indicators are also applied to study a new four-dimensional chaotic circuit system. The basic dynamic behaviors and structures are investigated analytically and numerically. The dynamic qualitative properties of individual orbits are observed using an oscilloscope. Moreover, the entire set of LE about the parameter is found to have three threshold values. Comparisons show that all chaos indicators are able to capture chaotic and periodic motion in chaotic circuit systems, but SALI displays significantly different behavior in several periodic orbits. SALI drops exponentially to zero for “morphologically regular” orbits that are actually unstable and sensitive to perturbation. This conclusion can also be confirmed by GALI.

FunctionCAD: A Functional Modeling Application Based on the Function Design Framework

2009 ◽  
Author(s):  
Robert L. Nagel ◽  
Kenneth L. Perry ◽  
Robert B. Stone ◽  
Daniel A. McAdams
Keyword(s):  
Conceptual Design ◽  
Hierarchical Models ◽  
Internal Representation ◽  
Design Tools ◽  
Design Framework ◽  
Functional Modeling ◽  
Function Design ◽  
Technical Details ◽  
And Function ◽  
Material Energy

This paper presents a functional modeling application, FunctionCAD, based on integrated functional and process modeling within the Function Design Framework. FunctionCAD provides for mixed, hierarchical models of environment, process and function with relationships represented via flows of material, energy and signal. This paper discusses the technical details of the FunctionCAD software including its two major components: (1) the library, libFCAD, for handling the internal representation of the model and (2) the GUI for user-based model manipulation and visualization. The application of FunctionCAD within a computational, function-based conceptual design process is discussed along with the plugin manager and interface that have been developed as a part of the FunctionCAD software to allow interconnectivity with existing conceptual design tools. And finally, a detailed description of model creation within the FunctionCAD environment is provided to illustrate software operability.

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