Dr Umar Hayat

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Naveed Ahmed Azam, PhDKyoto UniversityVerified email at amp.i.kyoto-u.ac.jp
Miguel D. BustamanteUniversity College DublinVerified email at ucd.ie
Aamir AliProfessor in Earth Sciences, Quaid-i-Azam UniversityVerified email at qau.edu.pk
Dr Mubasher UmerGovt. Associate College Chobara SialkotVerified email at math.qau.edu.pk
Adnan BarkatEarth System Sciences, The Chinese University of Hong Kong,Verified email at link.cuhk.edu.hk
Fazal AbbasSt Mary's College of CaliforniaVerified email at stmarys-ca.edu
Talat IqbalCentre for Earthquake Studies (CES)Verified email at ncp.edu.pk
Alvaro Nolla de CelisUniversidad Autónoma de MadridVerified email at uam.es
Qaiser MushtaqEmeritus Professor, Department of Mathematics, Quaid-i-Azam University, Islamabad, PakistanVerified email at qau.edu.pk
Dr. Fawad AliAssistant Professor, Department of Mathematics, COMSATS University, Islamabad CampusVerified email at comsats.edu.pk
Naila SiddiquePakistan Institute of Nuclear Science and TechnologyVerified email at pinstech.org.pk
Quentin CrowleyAssociate Professor, Trinity College DublinVerified email at tcd.ie
Aftab AlamCentre for Earthquake Studies, National Centre for PhysicsVerified email at ncp.edu.pk
Muhammad Ali ShahDirector, Centre for Earthquake Studies (CES), IslamabadVerified email at ncp.edu.pk
Bijan DavvazProfessor of Mathematics, Yazd University, Yazd, IranVerified email at yazd.ac.ir
Shane WalshPhD Student, University College DublinVerified email at ucdconnect.ie
Nasir M. RajpootTissue Image Analytics (TIA) Centre, University of WarwickVerified email at warwick.ac.uk
Erdal KarapinarEYTVerified email at mail.cmuh.org.tw
Peter LynchEmeritus Professor, School of Mathematics & StatisticsVerified email at ucd.ie
Awais MuhammadPr. Scientist, National Centre for PhysicsVerified email at ncp.edu.pk

Dr Umar Hayat

PhD, University of Warwick, UK

Verified email at qau.edu.pk

Algebraic/arithmetic Geometry Machine learning Information Security Graph Theory


Title Sort by citations Sort by year Sort by title	Cited by Cited by	Year
A novel image encryption scheme based on an elliptic curve U Hayat, NA Azam Signal Processing 155, 391-402, 2019	151	2019
A method of generating 8× 8 substitution boxes based on elliptic curves U Hayat, NA Azam, M Asif Wireless Personal Communications 101, 439-451, 2018	82	2018
An injective S-box design scheme over an ordered isomorphic elliptic curve and its characterization NA Azam, U Hayat, I Ullah Security and communication networks 2018, 1-9, 2018	47	2018
Efficient Construction of a Substitution Box Based on a Mordell Elliptic Curve Over a Finite Field NA Azam, U Hayat, I Ullah Frontiers of Information Technology & Electronic Engineering 20 (10), 1378–1389, 2019	46	2019
A substitution box generator, its analysis, and applications in image encryption NA Azam, U Hayat, M Ayub Signal Processing 187, 108144, 2021	43	2021
Time series analysis of soil radon in Northern Pakistan: Implications for earthquake forecasting A Barkat, A Ali, U Hayat, QG Crowley, K Rehman, N Siddique, T Haidar, ... Applied Geochemistry 97, 197-208, 2018	37	2018
A fast and secure public-key image encryption scheme based on Mordell elliptic curves NA Azam, I Ullah, U Hayat Optics and Lasers in Engineering 137, 106371, 2021	35	2021
A truly dynamic substitution box generator for block ciphers based on elliptic curves over finite rings U Hayat, NA Azam, HR Gallegos-Ruiz, S Naz, L Batool Arabian Journal for Science and Engineering 46 (9), 8887-8899, 2021	34	2021
Efficient and secure substitution box and random number generators over Mordell elliptic curves I Ullah, NA Azam, U Hayat Journal of Information Security and Applications 56, 102619, 2021	30	2021
Complete classification of discrete resonant Rossby/drift wave triads on periodic domains MD Bustamante, U Hayat Communications in Nonlinear Science and Numerical Simulation 18 (9), 2402-2419, 2013	27	2013
Image encryption using elliptic curves and Rossby/drift wave triads I Ullah, U Hayat, MD Bustamante Entropy 22 (4), 454, 2020	21	2020
A novel image encryption scheme based on elliptic curves over finite rings U Hayat, I Ullah, NA Azam, S Azhar Entropy 24 (5), 571, 2022	18	2022
Pell numbers, Pell–Lucas numbers and modular group Q Mushtaq, U Hayat Algebra Colloquium 14 (01), 97-102, 2007	18	2007
Horadam generalized Fibonacci numbers and the modular group Q Mushtaq, U Hayat Indian Journal of Pure and Applied Mathematics 38 (5), 345, 2007	16	2007
A novel deterministic substitution box generator over elliptic curves for real-time applications MAM Khan, NA Azam, U Hayat, H Kamarulhaili Journal of King Saud University-Computer and Information Sciences 35 (1 …, 2023	15	2023
A novel image encryption scheme based on elliptic curves and coupled map lattices NA Azam, G Murtaza, U Hayat Optik 274, 170517, 2023	14	2023
Designing an efficient and highly dynamic substitution-box generator for block ciphers based on finite elliptic curves G Murtaza, NA Azam, U Hayat Security and Communication Networks 2021, 1-14, 2021	14	2021
Towards provably secure asymmetric image encryption schemes NA Azam, J Zhu, U Hayat, A Shurbevski Information Sciences 631, 164-184, 2023	13	2023
Fractal analysis of shallow and intermediate-depth seismicity of Hindu Kush U Hayat, A Barkat, A Ali, K Rehman, S Sifat, T Iqbal Chaos, Solitons & Fractals 128, 71-82, 2019	10	2019
An efficient algorithm for nontrivial eigenvectors in max-plus algebra M Umer, U Hayat, F Abbas Symmetry 11 (6), 738, 2019	10	2019

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