I am a second-year PhD candidate in the School of Computer Science and Engineering (CSE) at the University of New South Wales (UNSW), where I conduct research at the intersection of network security and machine learning. My work focuses on encrypted network traffic classification, with the goal of enabling real-time threat detection and efficient resource management in an increasingly encrypted internet environment.
Previously, I have been involved in research at the Cisco-NUS Corporate Laboratory at the National University of Singapore, where I explored the application of large language models to network traffic analysis. I also contributed to the development of IP reputation systems at the Qatar Computing Research Institute.
I am always open to discussions and potential collaborations. If you are interested in my research or exploring opportunities to work together, feel free to get in touch.
Education
- University of New South Wales (UNSW), Kensington, Australia
- Supervisors: Dr. Arash Shaghaghi, Prof. Sanjay Jha
- University of Colombo School of Computing (UCSC), Colombo 07, Sri Lanka
- GPA: 3.85/4.00 | Class Position: 4 (Top 2.5%)
- Thesis: Uncovering Hosting IP Types Behind Malicious Websites
- Supervisors: Dr. Mohamed Nabeel , Dr. Chamath Keppitiyagama
Selected Publications
SoK: Decoding the Enigma of Encrypted Network Traffic Classifiers
N. Wickramasinghe, A. Shaghaghi, G. Tsudik, S. Jha.
IEEE Symposium on Security and Privacy (SP) - 2025
Less is More: Simplifying Network Traffic Classification Leveraging RFCs
N. Wickramasinghe, A. Shaghaghi, E. Ferrari, S. Jha
The ACM Web Conference (WWW) - 2025
Grants & Awards
- An award designed to support selected students in attending the conference.
- Successful Applications: 26 | Number of Applications: 219 | Award Rate: 11.87%
- A grant to aid early-stage PhD students in obtaining research and professional experience.
- Offered by: UNSW Graduate Research School
Services
- Elsevier B.V. Ad Hoc Networks - 2025
- 29th IEEE Pacific Rim International Symposium on Dependable Computing (PRDC) - 2024
- 49th IEEE Conference on Local Computer Networks (LCN) - 2024
- ACM SIGCOMM 2024: Organizing Committee - 2024
- National Olympiad of Informatics: Organizing Committee - 2019
- UCSC ACM Student Chapter: Treasurer - 2018
- IEEE Sri Lanka section AGM: Organizing Committee 2018