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FPGA Implementation of Elliptic-Curve Diffie Hellman Protocol

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Computers, Materials & Continua 2022年第10期73卷 1879-1894页

作者： Sikandar Zulqarnain khan Sajjad Shaukat jamal Asher Sajid Muhammad Rashid Department of Aeronautical Engineering Estonian Aviation AcademyTartu61707Estonia Department of Mathematics College of ScienceKing Khalid UniversityAbha61413Saudi Arabia Department of Electrical Engineering Bahria UniversityIslamabad44000Pakistan Department of Computer Engineering Umm Al-Qura UniversityMakkah21955Saudi Arabia

This paper presents an efficient crypto processor architecture for key agreement using ECDH(Elliptic-curve Diffie Hellman)protocol over GF2163.The composition of our key-agreement architecture is expressed in consisting of the following:(i)Elliptic-curve Point Multiplication architecture for public key generation(DESIGN-I)and(ii)integration of DESIGN-I with two additional routing multiplexers and a controller for shared key generation(DESIGN-II).The arithmetic operators used in DESIGN-I and DESIGNII contain an adder,squarer,a multiplier and inversion.A simple shift and add multiplication method is employed to retain lower hardware ***,an essential inversion operation is operated using the Itoh-Tsujii algorithm with similar hardware resources of used squarer and multiplier *** proposed architecture is implemented in a Verilog *** implementation results are given on a Xilinx Virtex-7 FPGA(field-programmable gate array)*** DESIGN-I and DESIGN-II over GF2163,(i)the utilized Slices are 3983 and 4037,(ii)the time to compute one public key and a shared secret is 553.7μs and 1170.7μs and(iii)the consumed power is 29μW and 57μ***,the achieved area optimized and power reduced results show that the proposed ECDH architecture is a suitable alternative(to generate a shared secret)for the applications that require low hardware resources and power consumption.

关键词： Elliptic curve cryptography point multiplication key-agreement diffie hellman area optimized architecture FPGA

Variable range hopping transport and dielectric relaxation mechanism in GdCrO_(3) rare-earth orthochromite perovskite

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Journal of Rare Earths 2024年第7期42卷 1304-1316,I0004页

作者： Muhammad Javed Ayaz Arif khan jamal Kazmi Naeem Akbar Said Nasir Khisro Amanullah Dar Aleem Dad khan Tareen Mohd Ambri Mohamed Department of Physics The University of Azad Jammu and KashmirMuzaffarabad13100Pakistan Department of Physics University of Kotli Azad Jammu and KashmirKotli11100Pakistan Institute of Microengineering and Nanoelectronics Universiti Kebangsaan Malaysia43600BangiSelangorMalaysia Department of Mathematics University of Kotli Azad Jammu and KashmirKotli11100Pakistan

The polycrystalline GdCrO_(3)(GCO)perovskite orthochromite was synthesized by the sol-gel auto-combustion *** Rietveld refined X-ray diffraction(XRD)profile of GCO confirms that the orthorhombic phase crystallizes in perovskite crystal structure with space group *** transmission electron microscopy and selected area electron diffraction divulge the polycrystalline nature of the perovskite *** field emission scanning electron microscopy(FESEM)images reveal the microstructural polyhedral growth of grains separated by sharp grain *** chemical states of the ions present in the compound were investigated by X-ray photoelectron spectroscopy(XPS)studies,and the electrical pathways were *** impedance studies were carried out in the experimental frequency and temperature ranges of 40 Hz-4 MHz and 178-408 K,*** equivalent circuit model(RGQG)(RGBQGB)resolves the impedance response into two contributions originating from the intra-grain and inter-granular micro-constituents of the *** electrical conduction mechanism is based on the Mott variable range hopping *** complex electric modulus studies demonstrate the short-and long-range mobility of the charge carriers and rule out the presence of electrode effects on the dielectric relaxation mechanism of the *** decreasing pattern of dielectric permittivity with frequency is explained by the Maxwell-Wagner type of *** frequency dependence of the loss factor exhibits the presence of thermally activated relaxation time distribution in the material.

关键词： Auto-combustion Perovskite Electro-ceramic Dielectric Electrical transport Impedance

The Role of the Real Estate Sector in the Structural Dynamics of the Chinese Economy:An Input-Output Analysis

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China & World Economy 2021年第1期29卷 61-86页

作者： Yongming Huang jamal khan Eric Girardin Umair Shad Institute for Region and Urban-Rural Development and Center for Industrial Development and Regional CompetitivenessWuhan UniversityChina Institute for Region and Urban-Rural Development Wuhan UniversityChina Aix-Marseille University Centre National de la Recherche ScientifiqueEcole des Hautes Etudes en Sciences SocialesAix-Marseille School of EconomicsFrance Assistant Registrar Hazara UniversityPakistan

Market-oriented housing reforms and the rapid urbanization process have led to spectacular growth in the Chinese real estate sector(RES).However,the changes in the role played by this sector in the structural dynamics of the Chinese economy have not been examined ***,we analyze the intersectoral structural changes to the Chinese RES,its linkages with the rest of the economy,and its growth sources,using four Chinese input-output tables from 2002 to *** depart from existing work on the RES by using the causative matrix approach and structural decomposition analysis,and obtain three main ***,the RES,which received little non-RES feedback during the 2002-2007period,has subsequently received much more substantial ***,the impact of the RES on China s economic growth stems mainly from its forward ***,the growth in the RES has been driven mainly by domestic demand *** results highlight that the Chinese RES,which plays a key role in value chains,is highly dependent on its own final demand and a fall in its demand would impede economic *** important implication of these results is that developing the national economy by stimulating the RES would not be as effective as developing the RES through stimulating the national economy.

关键词： causative matrix linkage real estate sector structural decomposition

Detection of ROS and translocation of ERP-57 in apoptotic induced human neuroblastoma(SH-SY5Y)cells

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BIOCELL 2019年第3期43卷 167-174页

作者： ATIF KAMIL MUBARAK ALI khan MUHAMMAD AASIM NADIR ZAMAN khan RAHAM SHER khan MUHSIN jamal WAQAR AHMAD MIR AZAM khan FAZAL JALIL Department of Biotechnology Abdul Wali Khan University Mardan(AWKUM)Garden CampusToru RoadMardanKPKPakistan Department of Biotechnology University of Malakand(UOM)ChakdaraLower DirPakistan Department of Microbiology Abdul Wali Khan University Mardan(AWKUM)Garden CampusToru RoadMardanKPKPakistan Department of Pharmacy University of Malakand(UOM)ChakdaraLower DirPakistan

Several toxic compounds are known to induce apoptosis in mammalian cell *** human neuroblastoma cells(SHSH-SY5Y)were exposed to the phosphatase inhibiting toxin okadaic acid(OA)or hydrogen peroxide(H2O2)to induce apoptosis as well as generate reactive oxygen species(ROS).Mitoxantrone(MXT)was used as a positive control for *** SHSH-SY5Y cells were transfected with eukaryotic expression plasmid pHyPer-dMito encoding mitochondrial-targeted fluorescent or pHyPer-dCito encoding cytoplasmic-targeted fluorescent sensor for hydrogen peroxide(HyPer).The ERp57,also called GRP58(Glucose-regulated protein 58),is a stress protein induced in conditions like glucose starvation and viral *** ERp57 was shown to translocate from the endoplasmatic reticulum to the cell surface in anthracycline-induced apoptotic ***57 co-translocation together with calreticulin has been suggested to be crucial for recognizing tumor cells to induce immunogenic cell ***57 translocation after exposure to okadaic acid was studied using immunofluorescence and confocal *** studies indicated that okadaic acid has induced the translocation of ERp57 to the cellular membrane.

关键词： Apoptosis Cytoplasm Endoplasmic recticulum(ER) ERP-57 Human neuroblastoma cell(SHSH-SY5Y) Immunofluorescence Mitochondria Reactive oxygen species(ROS) Transfection

Atmospheric Convection Model Based Digital Confidentiality Scheme

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Computers, Materials & Continua 2022年第6期71卷 4503-4522页

作者： Noor Munir Majid khan Mohammad Mazyad Hazzazi Amer Aljaedi Sajjad Shaukat jamal Iqtadar Hussain Department of Applied Mathematics and Statistics Institute of Space TechnologyIslamabadPakistan Department of Mathematics College of ScienceKing Khalid UniversityAbha61413Saudi Arabia College of Computing and Information Technology University of TabukTabuk71491Saudi Arabia Department of Mathematics Statistics and PhysicsQatar UniversityDoha2713Qatar

Nonlinear dynamics is a fascinating area that is intensely affecting a wide range of different disciplines of science and technology *** combination of different innovative topics of information security and high-speed computing has added new visions into the behavior of complex nonlinear dynamical systems which uncovered amazing results even in the least difficult *** generation of complex actions froma very simple dynamical method has a strong relation with information *** protection of digital content is one of the inescapable concerns of the digitally advanced ***,information plays an important role in everyday life and affects the surroundings *** digital contents consist of text,images,audio,and videos,*** to the vast usage of digital images in the number of social and web applications,its security is one of the biggest *** this work,we have offered an innovative image encryption technique based on present criteria of confusion and *** designed scheme comprises two major nonlinear dynamical *** have employed discrete fractional chaotic iterative maps to add confusion capability in our suggested algorithm and continuous chaotic Lorenz *** have verified our offered scheme by using statistical *** investigations under the statistical tests suggested that our proposed technique is quite reasonable for the security of digital data.

关键词： Lorenz atmospheric convection model fractional logistic map image encryption S-box

Atrocious Impinging of COVID-19 Pandemic on Software Development Industries

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Computer Systems Science & Engineering 2021年第2期36卷 323-338页

作者： Wajdi Alhakami Ahmed Binmahfoudh Abdullah Baz Hosam Alhakami Md Tarique jamal Ansari Raees Ahmad khan Department of Information Technology College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Computer Engineering College of Computer and Information SystemsUmm Al-Qura UniversityMakkah21955Saudi Arabia Department of Computer Science College of Computer and Information SystemsUmm Al-Qura UniversityMakkah21955Saudi Arabia Department of Information Technology Babasaheb Bhimrao Ambedkar UniversityLucknow226025India

COVID-19 is the contagious disease transmitted by *** majority of people diagnosed with COVID-19 may suffer from moderate-tosevere respiratory illnesses and stabilize without preferential *** who are most likely to experience significant infections include the elderly as well as people with a history of significant medical issues including heart disease,diabetes,or chronic breathing *** novel Coronavirus has affected not only the physical and mental health of the people but also had adverse impact on their emotional *** months on end now,due to constant monitoring and containment measures to combat COVID-19,people have been forced to live in isolation and maintain the norms of social distancing with no community *** ties,experiences,and partnerships are not only integral part of work life but also form the basis of human ***,COVID-19 brought all such communication to a grinding *** interactions have failed to support the fervor that one enjoys in face-to-face *** COVID-19 disease outbreak has triggered dramatic changes in many sectors,and the main among them is the software *** paper aims at assessing COVID-19’s impact on Software *** impact of the COVID-19 disease outbreak has been measured on the basis of some predefined criteria for the demand of different software applications in the software *** the stated analysis,we used an approach that involves the application of the integrated Fuzzy ANP and TOPSIS strategies for the assessment of the impact of COVID-19 on the software *** of this research study indicate that Government administration based software applications were severely affected,and these applications have been the major apprehensions in the wake of the pandemic’s ***,COVID-19 has had a considerable impact on software industry,yet the damage is not irretrievable and the world’s societies can emerge out

关键词： Coronavirus software industry safety COVID-19 monitoring fuzzy ANP-TOPSIS

Role of ZnO-CeO_2 Nanostructures as a Photo-catalyst and Chemi-sensor

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Journal of Materials Science & Technology 2011年第7期27卷 594-600页

作者： M. Faisal Sher Bahadar khan Mohammed M. Rahman Aslam jamal Kalsoom Akhtar M.M. Abdullah Centre for Advanced Materials and Nano-Engineering (CAMNE) and Department of Chemistry Faculty of Sciences and Arts Najran UniversityNajran 11001 Kingdom of Saudi Arabia Division of Nano Sciences and Department of Chemistry Ewha Womans UniversitySeoul 120-750 Korea

ZnO-CeO2 nanostructures were synthesized by simple and effcient low temperature method. The structure and morphology of the ZnO-CeO2 nanostructures were characterized by X-ray powder diffraction （XRD） and field emission scanning electron microscopy （FESEM）, which revealed elongated shaped CeO2 nanoparticles with diameters of 40–90 nm distributed on the surface of elongated ZnO nanostructures with diameters of 50–200 nm （edge–centre）. Further the structure of the synthesized ZnO-CeO2 nanostructure was supported by Raman spectra and Fourier transform infrared spectroscopy （FTIR）. UV-vis absorption spectrum was used to confirm the optical properties of the CeO2 doped ZnO nanostructures. Photo-catalytic activity of CeO2 doped ZnO nanostructure was evaluated by degradation of acridine orange and methylene blue which degraded 84.55% and 48.65% in 170 min, respectively. ZnO-CeO2 nanostructures also showed good sensitivity （0.8331 μA·cm-2·（mol/l）-1） in short response time （10 s） by applying to chemical sensing using ethanol as a target compound by I-V technique. These degradation and chemical sensing properties of ZnO-CeO2 nanostructures are of great importance for the application of ZnO-CeO2 system as a photo-catalyst and chemical sensor.

关键词： ZnO-CeO2 nanostructures Structural properties Optical properties Photocatalytic activity Ethanol sensing

Improved Shark Smell Optimization Algorithm for Human Action Recognition

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Computers, Materials & Continua 2023年第9期76卷 2667-2684页

作者： Inzamam Mashood Nasir Mudassar Raza jamal Hussain Shah Muhammad Attique khan Yun-Cheol Nam Yunyoung Nam Department of Computer Science COMSATS University IslamabadWah CampusWah Cantt47040Pakistan Department of Computer Science HITEC UniversityTaxilaPakistan Department of Architecture Joongbu UniversityGoyang10279South Korea Department of ICT Convergence Soonchunhyang UniversityAsan31538Korea

Human Action Recognition(HAR)in uncontrolled environments targets to recognition of different actions froma *** effective HAR model can be employed for an application like human-computer interaction,health care,person tracking,and video *** Learning(ML)approaches,specifically,Convolutional Neural Network(CNN)models had beenwidely used and achieved impressive results through feature *** accuracy and effectiveness of these models continue to be the biggest challenge in this *** this article,a novel feature optimization algorithm,called improved Shark Smell Optimization(iSSO)is proposed to reduce the redundancy of extracted *** proposed technique is inspired by the behavior ofwhite sharks,and howthey find the best prey in thewhole search *** proposed iSSOalgorithmdivides the FeatureVector(FV)into subparts,where a search is conducted to find optimal local features fromeach subpart of *** local optimal features are selected,a global search is conducted to further optimize these *** proposed iSSO algorithm is employed on nine(9)selected CNN *** CNN models are selected based on their top-1 and top-5 accuracy in ImageNet *** evaluate the model,two publicly available datasets UCF-Sports and Hollywood2 are selected.

关键词： Action recognition improved shark smell optimization convolutional neural networks machine learning

An Assessment of the Relationship Between Mizaj and Happiness in College Students During and After Complete Lockdown

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Psychosomatic Medicine Research 2021年第4期3卷 183-188页

作者： Iqra Hashmi yusuf jamal Department of physiology Ayurvedic and Unani Tibbia CollegeKarol BaghDelhi-05India

Unani medicine(also called as Greco-Arab medicine)is an ancient system of medicine that originated in *** Mizaj(temperament)is one of the fundamental concepts of the Unani system of medicine,diagnosis,and management of a *** human being has been furnished with a specific Mizaj through which the organs and systems of an individual perform their functions *** study assessed the relationship between Mizaj-dependent qualities and happiness symptomatology in college students before and after a lockdown.A cross-sectional descriptive study to assess the Mizaj and happiness index-with the help of the Mizaj assessment proforma based on classical literature and an Oxford Happiness Questionnaire-in 119 college students of different genders was *** findings of this study suggest that restrictions influence the happiness index of daily ***,the impact of restrictions to go out and to follow a daily routine(on the happiness index)in the Damvi,Safravi,and the Balghami group appears to be more critical compared with that of the Saudavi group participants.

关键词： Oxford Happiness Questionnaire Damvi Saudavi Balghami Safravi Mizaj