TARU PUBLICATIONS
Author

Rajitha Ranasinghe

Department of Mathematics, University of Peradeniya, Peradeniya, 20400, Sri Lanka

Published papers
3
Citations
4
Views
1,109
Downloads
293

Publications

3 papers
Open Access Research Article·pp. 2621–2640·Vol. 29, Issue 7Jul 2026

Collatz conjecture–driven cryptographic framework

Rajitha Ranasinghe, Vikum Bandara

Published Online: 01 Apr 2026DOI: 10.47974/JDMSC-2232

In this paper: The Collatz conjecture, introduced by Lothar Collatz in 1937, a longstanding unsolved problem, centers on a simple yet a puzzling question: Does repeatedly applying a specific rule to any positive int...

AbstractReferencesFull Text PDF (551 KB)Views: 309Downloads: 138Citations: 0
Open Access Research Article·pp. 631–639·Vol. 28, Issue 3Apr 2025

A modified ElGamal-like cryptosystem

Rajitha Ranasinghe, Pabasara Athukorala, Pramodya Athurugiriya

Published Online: 11 Apr 2025DOI: 10.47974/JDMSC-1723

In this paper: The ElGamal cryptosystem stands as one of the foremost public key encryption methods and represents a probabilistic algorithm, originating from the framework of the Diffie-Hellman key exchange protoco...

AbstractReferencesFull Text PDF (159 KB)Views: 382Downloads: 77Citations: 0
Open Access Research Article·pp. 143–150·Vol. 27, Issue 1Jan 2024

A novel improvement in RSA algorithm

Rajitha Ranasinghe, Madusha Chathurangi, Pabasara Athukorala

Published Online: 24 Jan 2024DOI: 10.47974/JDMSC-1628

In this paper: In this study, we propose a new cryptographic scheme based on the textbook RSA algorithm associating the concept of continued fractions. The algorithm is designed under the three primary steps of key...

AbstractReferencesFull Text PDF (140 KB)Views: 418Downloads: 78Citations: 4