关注
Dr Umar Hayat
Dr Umar Hayat
PhD, University of Warwick, UK
在 qau.edu.pk 的电子邮件经过验证
标题
引用次数
引用次数
年份
A novel image encryption scheme based on an elliptic curve
U Hayat, NA Azam
Signal Processing 155, 391-402, 2019
1732019
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
1042018
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
642019
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), 3421725, 2018
602018
A substitution box generator, its analysis, and applications in image encryption
NA Azam, U Hayat, M Ayub
Signal Processing 187, 108144, 2021
552021
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
402021
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
402018
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
382021
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
372021
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
312013
Image encryption using elliptic curves and Rossby/drift wave triads
I Ullah, U Hayat, MD Bustamante
Entropy 22 (4), 454, 2020
252020
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
242022
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
212023
Towards provably secure asymmetric image encryption schemes
NA Azam, J Zhu, U Hayat, A Shurbevski
Information Sciences 631, 164-184, 2023
202023
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), 3367521, 2021
202021
Pell numbers, Pell–Lucas numbers and modular group
Q Mushtaq, U Hayat
Algebra Colloquium 14 (01), 97-102, 2007
202007
A novel image encryption scheme based on elliptic curves and coupled map lattices
NA Azam, G Murtaza, U Hayat
Optik 274, 170517, 2023
172023
Horadam generalized Fibonacci numbers and the modular group
Q Mushtaq, U Hayat
Indian Journal of Pure and Applied Mathematics 38 (5), 345, 2007
172007
Identification of radon anomalies induced by earthquake activity using intelligent systems
T Haider, A Barkat, U Hayat, A Ali, M Awais, A Alam, K Rehman, MA Shah
Journal of Geochemical Exploration 222, 106709, 2021
122021
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
112019
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