AUTHOR=Mohamud Abdulle Hassan TITLE=A new mathematical model to improve encryption process based on Split-Radix Fast Fourier Transform algorithm JOURNAL=Frontiers in Computer Science VOLUME=6 YEAR=2025 URL=https://www.frontiersin.org/journals/computer-science/articles/10.3389/fcomp.2024.1479592 DOI=10.3389/fcomp.2024.1479592 ISSN=2624-9898