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Dr. Hitesh Tewari

Assistant Professor (Computer Science)

Hitesh Tewari received his BA(Mod), MSc and PhD degrees from Trinity College Dublin, Ireland. His research interests are in the areas of network security, applied cryptography and mobile communications, and has published a number of papers. He co-authored a book on Electronic Payments which is currently in its second edition.
  Computer Networks   Cryptography   Electronic Commerce   Local Area Networks   MOBILE COMMUNICATION   NETWORK SECURITY   Telecommunications Research
 Pay-As-You-Go for Next Generation Mobile Networks
 Pay-As-You-Go for Next Generation Mobile Networks
 Quantum Resistant Cryptographic Techniques

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Details Date
Served as an expert member for Ireland on the DG CONNECT sponsored European Blockchain Partnership (EBP) technical group. Represented the Office of the Government Chief Information Officer (OGCIO), Ireland 2018
Member of the Independent Research and Development Expert Panel for the Revenue Commissioners, Ireland 2021
Language Skill Reading Skill Writing Skill Speaking
English Fluent Fluent Fluent
Hindi Medium Basic Fluent
S. Kumari, V. Tulshyan and H. Tewari, Cyber Security on the Edge: Efficient Enabling of Machine Learning on IoT Devices, Information, 15, (126), 2024, p28 , Journal Article, PUBLISHED  DOI
P. Bradish, S. Chaudhari, M. Clear and H. Tewari, CoviChain: A Blockchain Based COVID-19 Vaccination Passport, Future of Information and Communication Conference (FICC), San Francisco, USA, 2-3 March, 2023, Conference Paper, ACCEPTED  DOI  URL
J. Rowland and H. Tewari, Optimized Communication in Sharded Blockchain Networks, Future of Information and Communication Conference (FICC), San Francisco, USA, 2-3 March, 2023, Conference Paper, ACCEPTED  DOI  URL
R. Singh, S. Sturley and H. Tewari, Blockchain-Enabled Chebyshev Polynomial-Based Group Authentication for Secure Communication in an Internet of Things Network, Future Internet, 15, (3), 2023, p1-15 , Journal Article, PUBLISHED  DOI  URL
M. Clear and H. Tewari, Anonymous Homomorphic IBE with Application to Anonymous Aggregation, Cryptography, 7, (2), 2023, p1-19 , Journal Article, PUBLISHED  DOI  URL
R. Singh, Z. Pervez and H. Tewari, Blockchain-Enabled NextGen Service Architecture for Mobile Internet Offload, Future Internet, 15, (5), 2023, p1-14 , Journal Article, PUBLISHED  DOI  URL
M. Chun, S. Weber and H. Tewari, A Lightweight Encryption Scheme for IoT Devices in the Fog, Lecture Notes in Networks and Systems, Future Technologies Conference (FTC), Vancouver, Canada, 20-21 October, edited by K. Arai , 560, Springer, Cham, 2022, pp147 - 161, Conference Paper, PUBLISHED  DOI  URL
R. Singh, A. Chauhan and H. Tewari, Blockchain-Enabled End-to-End Encryption for Instant Messaging Applications, 2022 IEEE 23rd International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM), Belfast, United Kingdom, 14-17 June, 2022, pp501 - 506, Conference Paper, PUBLISHED  DOI  URL
S. Kumari, M. Singh, R. Singh and H. Tewari, Post‐quantum cryptography techniques for secure communication in resource‐constrained Internet of Things devices: A comprehensive survey, Journal of Software: Practice and Experience, 2022, Journal Article, PUBLISHED  DOI
S. Kumari, M. Singh, R. Singh and H. Tewari, Signature based Merkle Hash Multiplication algorithm to secure the communication in IoT devices, Knowledge-Based Systems, 2022, Journal Article, PUBLISHED  DOI

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H. Tewari (Elaine Burke Eds.), The question for DeFi in 2024 is whether you can bank on crypto, 2024, -, Miscellaneous, PUBLISHED
H. Tewari, `The Wild West of finance': CBDCs, crypto and privacy in a digital age, 2023, -, Miscellaneous, PUBLISHED
Hitesh Tewari, Trinity research proposes a way to decarbonise cryptocurrencies, 2022, -, Miscellaneous, PUBLISHED
H. Tewari, The future of blockchain: Why decentralisation is here to stay, 2022, -, Miscellaneous, PUBLISHED
Hitesh Tewari, Blockchain for Government, Lero Workshop, 4th April, 2019, Yes, Invited Talk, PUBLISHED
Hitesh Tewari, Four ways blockchain could make the internet safer, fairer and more creative, 2019, -, Miscellaneous, PUBLISHED
Hitesh Tewari, Here's one way a blockchain could deliver a smarter city, 2019, -, Miscellaneous, PUBLISHED
Hitesh Tewari, Would you take your chances on a blockchain-backed lottery?, 2019, -, Miscellaneous, PUBLISHED
Hitesh Tewari, Seamless encryption key to Trinity spin out, 2014, -, Miscellaneous, PUBLISHED
Hitesh Tewari, CompSci boffins tout file encryption for Google Docs, 2012, -, Miscellaneous, PUBLISHED


Award Date
Best Student Paper Award, Computing Conference UK'21 ( 2021
Best Paper Award - IEEE Conference on Applications, Information and Network Security, AINS 2020 ( 2020
Best Paper Award - International Conference Applied Computing, ICAC 2017 ( 2017
Best Undergraduate Project in Ireland & Northern Ireland ( 2011
When individuals surf the web, use social media, or access smart devices, they leave their digital footprints all over the Internet. An increasing awareness of the implications of digital fingerprinting/data mining has led to concerns over the usage and control of an individual's personal data by technology companies. My broad research objective is to address these concerns by inventing decentralized privacy-preserving techniques for the development of future networked systems, and their application in a global framework. While cryptocurrencies are gaining increasing popularity, few people are aware of the huge environmental toll associated with securing transactions on the blockchain. Bitcoin mining has now surpassed the energy requirements of a country like Argentina. With the heightened awareness of the devastating effects that climate change has on our planet, I propose to develop energy efficient and high transaction throughput protocols for the next-generation of cryptocurrencies, by developing novel consensus mechanisms, lightweight cryptographic protocols etc. Increasingly, the Internet is being controlled by a small number of powerful technology firms. To counter this threat I have created a framework for a Decentralized Internet. Social media platforms have now become a breeding ground for fake news, and are plagued by increasing abuse of individuals, minorities etc. I have initiated a programme of research which is looking into making these platforms safer by developing a framework for a global public-key infrastructure, which will securely identify users and eliminate the need for memorising passwords. In the e-Health space, I have developed a healthcare management ecosystem that allows a patient's medical records to be stored securely and anonymously on a blockchain. This enables data to be mined by third-parties to determine healthcare trends etc., without them inferring personal details of individual patients. Also, the Internet of Things (IoT) is going to play a major role in delivering the next-generation of healthcare systems.