A Novel Ultra-Compact FPGA PUF: The DD-PUF

In this paper, we present a novel ultra-compact Physical Unclonable Function (PUF) architecture and its FPGA implementation. The proposed Delay Difference PUF (DD-PUF) is the most dense FPGA-compatible PUF ever reported in the literature, allowing the implementation of two PUF bits in a single slice and provides very good values for all the most important figures of merit. The architecture of the proposed PUF exploits the delay difference between two nominally identical signal paths and the metastability features of D-Latches with an asynchronous reset input. The DD-PUF has been implemented on both Xilinx Spartan-6 and Artix-7 devices and the resulting design flows which allow to accurately balance the nominal delay of the different signal paths is outlined. The circuits have been extensively tested under temperature and supply voltage variations and the results of our evaluations on both FPGA families have shown that the proposed architecture and implementation are able to fit in just 32 Configurable Logic Blocks (CLBs) without sacrificing steadiness, uniqueness and uniformity, thus outperforming most of the previously published FPGA-compatible PUFs.

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Reliability of Physical Unclonable Function under Temperature and Supply Voltage Variations

2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) ◽

10.1109/mwscas.2018.8623849 ◽

2018 ◽

Author(s):

Manpreet Kaur ◽

Rashid Rashidzadeh ◽

Roberto Muscedere

Keyword(s):

Supply Voltage ◽

Physical Unclonable Function

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A Flip-Flop Based Arbiter Physical Unclonable Function (APUF) Design with High Entropy and Uniqueness for FPGA Implementation

IEEE Transactions on Emerging Topics in Computing ◽

10.1109/tetc.2019.2935465 ◽

2019 ◽

pp. 1-1 ◽

Cited By ~ 3

Author(s):

Chongyan Gu ◽

Weiqiang Liu ◽

Yijun Cui ◽

Neil Hanley ◽

Maire Oneill ◽

...

Keyword(s):

Fpga Implementation ◽

Physical Unclonable Function ◽

Flip Flop ◽

High Entropy

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Quasi-Adiabatic SRAM Based Silicon Physical Unclonable Function

SN Computer Science ◽

10.1007/s42979-020-00253-5 ◽

2020 ◽

Vol 1 (5) ◽

Author(s):

Yasuhiro Takahashi ◽

Hiroki Koyasu ◽

S. Dinesh Kumar ◽

Himanshu Thapliyal

Keyword(s):

Low Power ◽

Radio Frequency Identification ◽

Supply Voltage ◽

Electronic Devices ◽

Random Access ◽

Cmos Process ◽

Physical Unclonable Function ◽

Ultra Low Power ◽

Measurement Results ◽

Simulation Results

Abstract Silicon Physical Unclonable Function (PUF) is a general hardware security primitive for security vulnerabilities. Recently, Quasi-adiabatic logic based physical unclonable function (QUALPUF) has ultra low-power dissipation; hence it is suitable to implement in low-power portable electronic devices such radio frequency identification (RFID) and wireless sensor networks (WSN), etc. In this paper, we present a design of 4-bit QUALPUF which is based on static random access memory (SRAM) for low-power portable electronic devices and then shows the post-layout simulation and measurement results. To evaluate the uniqueness and reliability, the 4-bit QUALPUF is implemented in 0.18 $$\upmu$$ μ m standard CMOS process with 1.8 V supply voltage. The 4-bit QUALPUF occupies 58.7$$\times$$ × 15.7 $$\upmu \mathrm {m}^{2}$$ μ m 2 of layout area. The post-layout simulation results illustrate that the uniqueness calculated from the inter-die HDs of the 4-bit QUALPUF is 47.58%, the average reliability is 95.10%, and the the energy dissipation is 29.73 fJ/cycle/bit. The functional measurement results of the fabricated chip are the same as the post-layout simulation results.

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FPGA Implementation of MC-CDMA for High Security Applications

CVR Journal of Science & Technology ◽

10.32377/cvrjst0507 ◽

2013 ◽

Vol 5 (1) ◽

pp. 36-41

Author(s):

R. Ganesh ◽

◽

Ch. Sandeep Reddy ◽

Keyword(s):

Fpga Implementation ◽

Security Applications ◽

High Security

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An Effective FPGA Implementation of Denoising of Impulse Noise in Images

International Innovative Research Journal of Engineering and Technology ◽

10.32595/iirjet.org/v1i3.2016.15 ◽

2016 ◽

Vol 1 (3) ◽

pp. 19-25

Author(s):

Jeniffer A ◽

Haripasath S ◽

Chinthamani S ◽

Chitra G ◽

Karthiga V

Keyword(s):

Impulse Noise ◽

Fpga Implementation

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Analysis of Characteristics of LED Lamps with T8 Bulb by Various Manufacturers

Light & Engineering ◽

10.33383/2018-112 ◽

2019 ◽

pp. 82-87

Author(s):

Nina P. Nestyorkina ◽

Olga Yu. Kovalenko ◽

Yulia A. Zhuravlyova

Keyword(s):

Supply Voltage ◽

Luminous Flux ◽

Supply Network ◽

Operational Characteristics ◽

Nominal Voltage ◽

Electric Parameters ◽

The Moment ◽

Colour Rendering

The article analyses the operational characteristics of 10W LED lamps with T8 bulb manufactured by ASD (Russia), Smartbuy (Taiwan), and VOLPE (PRC) and 18W FL with T8 bulb manufactured by PHILIPS (Poland) including the dependence of these lamps on the supply voltage. The results of measurements show that: a) the period of stabilisation of electric parameters and luminous flux of LED lamps does not cause discomfort of illumination unlike the said FL, the luminous flux of which at the moment of switching on is 70 % of the nominal value, which is reached after 13 minutes; b) with nominal voltage of supply network, the value of luminous flux of 10W ASD LED-T8R-STD LED lamp (Russia) is 6 % less than the declared one, and that of Smartbuy SBL-T8-10-64K-A (Taiwan) and VOLPE LED-T8-10W/DW/G13/FR/FIX/N (PRC) is even less; c) the general colour rendering index of all studied LED lamps is less than the declared one (72 instead of 80); d) the flicker index of all studied LED lamps does not exceed the declared value of 5 %; e) the characteristics of LED lamps almost do not depend on changes of the supply voltage within the range of ±10 %. The recommendations regarding the application of the studied LED lamps are given.

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Dependence of Current Harmonics of Greenhouse Irradiators on Supply Voltage

Light & Engineering ◽

10.33383/2019-024 ◽

2020 ◽

pp. 85-88 ◽

Cited By ~ 1

Author(s):

Nadezhda P. Kondratieva

Keyword(s):

Mathematical Models ◽

Supply Voltage ◽

Harmonic Distortion ◽

Feasibility Studies ◽

Power Losses ◽

Voltage Level ◽

Supply Networks ◽

Current Harmonics ◽

Cable Lines ◽

Harmonic Composition

The article describes the results of the study concerning the effect of the voltage level on current harmonic composition in greenhouses irradiators. It is found that its change affects the level of current harmonics of all types of the studied greenhouse irradiators. With decrease of nominal supply voltage by 10 %, the total harmonic distortion THDi decreases by 9 % for emitters equipped with high pressure sodium lamps (HPSL), by 10 % for emitters with electrode-less lamps and by 3 % for LED based emitters. With increase of nominal supply voltage by 10 %, THDi increases by 23 % for lighting devices equipped with HPSL, by 10 % for irradiators with electrode-less lamps and by 3 % for LED based emitters. Therefore, changes of supply voltage cause the least effect on the level of current harmonics of LED based emitters and then the emitters with electrode-less lamps. Change of the level of supply voltage causes the greatest effect on the level of current harmonics of HPSL based irradiators. Mathematical models of dependence of THDi on the level of supply voltage for greenhouse emitters equipped with LED, electrode-less lamps and HPSL lamps were formulated. These mathematical models may be used for calculations of total current when selecting transformers and supply cable lines for greenhouse lighting devices, for design of new or reconstruction of existing irradiation systems of greenhouse facilities, and for calculation of power losses in power supply networks of greenhouse facilities during feasibility studies for energy saving and energy efficiency increasing projects.

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Proteins and direct methods

Zeitschrift für Kristallographie - Crystalline Materials ◽

10.1524/zkri.1991.197.3-4.197 ◽

1991 ◽

Vol 197 (3-4) ◽

Cited By ~ 7

Author(s):

Fan Hai-fu ◽

Hao Quan ◽

M. M. Woolfson

Keyword(s):

First Principles ◽

Figure Of Merit ◽

Direct Methods ◽

Large Structure ◽

Low Resolution ◽

Figures Of Merit ◽

Large Structures ◽

Resolution Data

AbstractConventional direct methods, which work so well for small structures, are less successful for macromolecules. Where it has been demonstrated that a solution might be found using direct methods it is then found that the usual figures of merit are unable to distinguish the few good sets of phases from the large number of sets generated. The reasons for the difficulties with very large structures are considered from a first-principles approach taking into account both the factors of having a large number of atoms and low resolution data. A proposal is made for trying to recognize good phase sets by taking a large structure as a sum of a number of smaller structures for each of which a conventional figure of merit can be applied.

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