Sri AravindaKrishnan Thyagarajan

I am a Lecturer at the School of Computer Science at the University of Sydney, where I am part of the SACT group, the cybersecurity cluster, and the Sydney Blockchain Centre.

My research is in classical and post-quantum cryptography, with a particular focus on blockchains, fairness in multi-party computation, privacy-preserving applications, and game-theoretic mechanism design for decentralised applications that bridge rigorous theory and real-world deployment.

For students

I am actively looking for PhD, honours, and research-oriented undergraduate students interested in cryptography, game theory, and blockchains. You do not need to arrive as a cryptographer already. Curiosity, mathematical maturity, and persistence matter much more.

If you enjoy turning “this should work” into “this provably works,” come join my group.

For collaborators

I am interested in collaborations at the intersection of security, privacy, and fairness, especially around distributed cryptography, fair exchange, blockchain protocols, and post-quantum systems. I am particularly excited by problems where formal cryptographic guarantees must coexist with deployable systems and realistic incentives.