A fully integrated chaos generator based on voltage controlled oscillator

Duan, Zhikui; Wang, Huwei; He, Shaobo; Li, Shiren; Yan, Shiquan; Yu, Xinmei; Yang, Guangguang; Tan, Haishu

doi:10.1016/j.mejo.2022.105514

Cited by 6 publications

(3 citation statements)

References 35 publications

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“…One can find more works related to OTA-C filters, but in all cases, the topologies are quite similar to the ones given in the tutorial [28]. The outstanding challenge is the design of integrated circuits for low-voltage and low-power applications, as in the case studies given in [29][30][31].…”

Section: Introductionmentioning

confidence: 76%

CMOS Design of Chaotic Systems Using Biquadratic OTA-C Filters

Juarez-Mendoza,

del Angel-Diaz,

Diaz-Sanchez

et al. 2024

JLPEA

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This manuscript shows the CMOS design of Lorenz systems using operational transconductance amplifiers (OTAs). Two Lorenz systems are then synchronized in a master–slave topology and used to implement a CMOS secure communication system. The contribution is devoted to the correct design of first- and second-order OTA-C filters, using 180 nm CMOS technology, to guarantee chaotic behavior. First, Simulink is used to simulate a secure communication system using two Lorenz systems connected in a master–slave topology, which is tested using sinusoidal signals that are masked by chaotic signals. Second, the Lorenz systems are scaled to have amplitudes of the state variables below 1 Volt, to allow for CMOS design using OTA-C filters. The transconductances of the OTAs are tuned to accomplish a Laplace transfer function. In this manner, this work highlights the design of a second-order CMOS OTA-C filter, whose damping factor is tuned to generate appropriate chaotic behavior. Finally, chaotic masking is performed by designing a whole CMOS secure communication system by using OTA-C based Lorenz systems, and its SPICE simulation results show its appropriateness for hardware security applications.

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Section: Introductionmentioning

confidence: 76%

CMOS Design of Chaotic Systems Using Biquadratic OTA-C Filters

Juarez-Mendoza,

del Angel-Diaz,

Diaz-Sanchez

et al. 2024

JLPEA

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show abstract

“…However, it is important to note that the performance of these circuits is not comparable to that of an integrated chaotic circuit in various aspects. Compared to other methods employed in the design of integrated chaotic circuits [29,30,39,[44][45][46][47][48][49][50], the approach utilized in this study demonstrates superior performance in terms of circuit layout design and output frequency. It is indisputable that the integration of the circuit offers numerous benefits, and this study effectively showcases the advantages of the integrated chaotic circuit.…”

Section: Performance Comparisonmentioning

confidence: 99%

Integrated Circuit of a Chua’s System Based on the Integral-Differential Nonlinear Resistance with Multi-Path Voltage-Controlled Oscillator

Duan,

Li,

et al. 2024

Micromachines

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In this paper, we present a fully integrated circuit without inductance implementing Chua’s chaotic system. The circuit described in this study utilizes the SMIC 180 nm CMOS process and incorporates a multi-path voltage-controlled oscillator (VCO). The integral-differential nonlinear resistance is utilized as a variable impedance component in the circuit, constructed using discrete devices from a microelectronics standpoint. Meanwhile, the utilization of a multi-path voltage-controlled oscillator ensures the provision of an adequate oscillation frequency and a stable waveform for the chaotic circuit. The analysis focuses on the intricate and dynamic behaviors exhibited by the chaotic microelectronic circuit. The experimental findings indicate that the oscillation frequency of the VCO can be adjusted within a range of 198 MHz to 320 MHz by manipulating the applied voltage from 0 V to 1.8 V. The circuit operates within a 1.8 V environment, and exhibits power consumption, gain–bandwidth product (GBW), area, and Lyapunov exponent values of 1.0782 mW, 4.43 GHz, 0.0165 mm2, and 0.6435∼1.0012, respectively. The aforementioned circuit design demonstrates the ability to generate chaotic behavior while also possessing the benefits of low power consumption, high frequency, and a compact size.

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“…Because chaos-based communication [5,6] is highly sensitive to initial conditions and synchronize over time, it is suitable choice for reliable communication [7] against eavesdroppers. Moreover, use of chaos is suggested as a potential alternative in post-quantum cryptography [8].…”

Section: Introductionmentioning

confidence: 99%

Reliable and Secure Memristor-based Chaotic Communication Against Eavesdroppers and Untrusted Foundries

Vishwakarma

Monani

Hedayatipour

et al. 2022

Preprint

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Chaos is a deterministic phenomenon that occurs in a non-linear dynamic system under the specific condition when the trajectories of the state vector become periodic and extremely sensitive to the initial conditions. While traditional resistor-based chaotic communications are primarily concerned with the safe transfer of information across networks, the transceivers themselves can be compromised due to outsourcing manufacturing. With the growth of wireless sensors in resource-constrained implantable and wearable devices, chaotic communication may be a good fit if the information transmitted is reliable and the transmitter devices are secure. We believe that memristor, as the fourth fundamental two-terminal circuit element, can close the gap between reliable communication and secure manufacturing since its resistance can be programmed and saved by the designer and not the foundry. Thus, in this paper, we propose a memristor-based Chua’s chaotic transceiver that is both reliable in the presence of eavesdroppers and secure against untrusted foundries. Specifically, we consider the pair of transmitter and receiver under the same memristor value to show the possibility of uninterrupted communication as well as cases wheredifferent values of memristors are used to find out the possible rangein which the message can still be meaningfully decoded. Experimen-tal results confirm that both reliable communication and secure designcan be achieved via our proposed memristor-based chaos transceivers.

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A fully integrated chaos generator based on voltage controlled oscillator

Cited by 6 publications

References 35 publications

CMOS Design of Chaotic Systems Using Biquadratic OTA-C Filters

CMOS Design of Chaotic Systems Using Biquadratic OTA-C Filters

Integrated Circuit of a Chua’s System Based on the Integral-Differential Nonlinear Resistance with Multi-Path Voltage-Controlled Oscillator

Reliable and Secure Memristor-based Chaotic Communication Against Eavesdroppers and Untrusted Foundries

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