Umar Hayat

Publication Activity (10 Years)

Years Active: 2013-2024
Publications (10 Years): 24

Top Topics

Random Number Generator

Top Venues

Signal Process.

Expert Syst. Appl.

Publications

Takreem Haider, Saúl A. Blanco, Umar Hayat
A novel pseudo-random number generator based on multivariable optimization for image-cryptographic applications. Expert Syst. Appl. 240 (2024)
Takreem Haider, Naveed Ahmed Azam, Umar Hayat
Substitution box generator with enhanced cryptographic properties and minimal computation time. Expert Syst. Appl. 241 (2024)
Takreem Haider, Saúl A. Blanco, Umar Hayat
A Novel Pseudo-Random Number Generator Based on Multi-Objective Optimization for Image-Cryptographic Applications. CoRR (2023)
Mohammad Abdul Mujeeb Khan, Naveed Ahmed Azam, Umar Hayat, Hailiza Kamarulhaili
A novel deterministic substitution box generator over elliptic curves for real-time applications. J. King Saud Univ. Comput. Inf. Sci. 35 (1) (2023)
Naveed Ahmed Azam, Jianshen Zhu, Umar Hayat, Aleksandar Shurbevski
Towards provably secure asymmetric image encryption schemes. Inf. Sci. 631 (2023)
Fazal Abbas, Mubasher Umer, Umar Hayat, Ikram Ullah
Trivial and Nontrivial Eigenvectors for Latin Squares in Max-Plus Algebra. Symmetry 14 (6) (2022)
Umar Hayat, Ikram Ullah, Naveed Ahmed Azam, Sumaira Azhar
A Novel Image Encryption Scheme Based on Elliptic Curves over Finite Rings. Entropy 24 (5) (2022)
Naveed Ahmed Azam, Umar Hayat, Maria Ayub
A substitution box generator, its analysis, and applications in image encryption. Signal Process. 187 (2021)
Ikram Ullah, Naveed Ahmed Azam, Umar Hayat
Efficient and secure substitution box and random number generators over Mordell elliptic curves. J. Inf. Secur. Appl. 56 (2021)
Shaban Zulfiqar, Safa Arooj, Umar Hayat, Suleman Shahid, Asim Karim
Automated Generation of Accessible PDF. ASSETS (2020)
Ikram Ullah, Umar Hayat, Miguel D. Bustamante
An efficient image encryption scheme based on ordered quasi-resonant Rossby/drift wave triads and Mordell elliptic curves. CoRR (2020)
Ikram Ullah, Umar Hayat, Miguel D. Bustamante
Image Encryption Using Elliptic Curves and Rossby/Drift Wave Triads. Entropy 22 (4) (2020)
Mubasher Umer, Umar Hayat, Fazal Abbas, Anurag Agarwal, Petko Kitanov
An Efficient Algorithm for Eigenvalue Problem of Latin Squares in a Bipartite Min-Max-Plus System. Symmetry 12 (2) (2020)
Adeel Shahzad, Hafiz Tayyab Rauf, Tayyaba Asghar, Umar Hayat
Comparison of Probability Distributions for Evolving Artificial Neural Networks Using Bat Algorithm. AHFE (13) (2020)
Ali Mirza, Imran Siddiqi, Umar Hayat, Muhammad Atif, Syed Ghulam Mustufa
Recognition of Cursive Caption Text Using Deep Learning - A Comparative Study on Recognition Units. ICPRAI (2020)
Naveed Ahmed Azam, Umar Hayat, Ikram Ullah
Efficient construction of a substitution box based on a Mordell elliptic curve over a finite field. Frontiers Inf. Technol. Electron. Eng. 20 (10) (2019)
Umar Hayat, Naveed Ahmed Azam
A novel image encryption scheme based on an elliptic curve. Signal Process. 155 (2019)
Ikram Ullah, Naveed Ahmed Azam, Umar Hayat
Efficient and Secure Substitution Box and Random Number Generators Over Mordell Elliptic Curves. CoRR (2019)
Umar Hayat, Shahid Amanullah, Shane Walsh, Mamoon Abdullah, Miguel D. Bustamante
Discrete resonant Rossby/drift wave triads: Explicit parameterisations and a fast direct numerical search algorithm. Commun. Nonlinear Sci. Numer. Simul. 79 (2019)
Mubasher Umer, Umar Hayat, Fazal Abbas
An Efficient Algorithm for Nontrivial Eigenvectors in Max-Plus Algebra. Symmetry 11 (6) (2019)
Naveed Ahmed Azam, Umar Hayat, Ikram Ullah
An Injective S-Box Design Scheme over an Ordered Isomorphic Elliptic Curve and Its Characterization. Secur. Commun. Networks 2018 (2018)
Naveed Ahmed Azam, Umar Hayat, Ikram Ullah
Efficient Construction of S-boxes Based on a Mordell Elliptic Curve Over a Finite Field. CoRR (2018)
Umar Hayat, Daniel López-Aguayo, Akhtar Abbas
-Groups and the Dihedral Group. Symmetry 10 (7) (2018)
Umar Hayat, Naveed Ahmed Azam, Muhammad Asif
A Method of Generating 8 × 8 Substitution Boxes Based on Elliptic Curves. Wirel. Pers. Commun. 101 (1) (2018)
Miguel D. Bustamante, Umar Hayat
Complete classification of discrete resonant Rossby/drift wave triads on periodic domains. Commun. Nonlinear Sci. Numer. Simul. 18 (9) (2013)