Network Security & Applied Cryptography

Welcome to the Applied Cryptography Research Lab based in the School of Computer Science and Statistics at Trinity College Dublin.Our research group is focused on Network Security, Cryptography, Decentralisation and Privacy.

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Research Areas & Technologies

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Post-Quantum Cryptography

Developing and analyzing cryptographic algorithms resistant to attacks by quantum computers.

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Zero-Knowledge Proofs

Exploring ZKPs for privacy-preserving applications like voting, identity, and blockchain.

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Network Security & Decentralisation

Designing decentralized protocols and digital identity systems on blockchain.

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Research Projects

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Our research group focuses on developing practical applications of cryptography and blockchain technology. Here are some of our key projects:

Project Logo

zkBallot : Privacy-Preserving eVoting

Zero-Knowledge ProofseVotingPrivacy

zkBallot is a next-generation eVoting system using zero-knowledge proofs to guarantee voter privacy and verifiable results. No identities or choices are ever revealed.

Privacy

Complete voter anonymity through advanced cryptographic techniques, ensuring vote secrecy.

Security

Votes are cryptographically secured and tamper-proof on the blockchain.

Verifiability

End-to-end verification without compromising privacy or revealing individual votes.

  • Private, verifiable voting
  • Public, privacy-preserving tally
  • Tamper-Proof Vote records
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Recent Events

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  • L
    July 2025Lecture

    XRPL Commons Lecture: PQC for XRP

    Delivered an invited lecture on Post-Quantum Cryptography for the XRP Ledger at the XRPL Commons event in Paris, sharing insights on quantum-safe blockchain security with the global XRPL community.

  • P
    July 2025Publication

    Papers Accepted at BCCA 2025, Croatia

    Our research papers on PoW++ and Post-Quantum Cryptography were accepted at the Blockchain and Cryptocurrency Conference (BCCA 2025) in Croatia, highlighting our latest advances in blockchain consensus and quantum-resistant cryptography.

  • A
    June 2025Award

    UBRI Ripple: PQC Project Wins Project of the Year

    Presented our XRP PQC Integration project at the UBRI Ripple event in Singapore and received the Project of the Year award for our pioneering work in quantum-safe blockchain technology.

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    May 2025Conference Demo

    zkBallot at Blockchain Ireland Summit 2025

    Presented and demoed zkBallot at the Blockchain Ireland Summit 2025, showcasing our zero-knowledge eVoting platform to industry leaders and receiving excellent feedback from the Irish blockchain community.

Meet the Team

Prof. Hitesh Tewari

Prof. Hitesh Tewari

Principal Investigator

Atharva Lele

Atharva Lele

Research Assistant

Harsha Vardhan

Harsha Vardhan

Research Assistant

Get In Touch

We welcome collaboration inquiries, questions about our research, and prospective students.

Address:School of Computer Science and Statistics, Trinity College Dublin, Ireland
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