My main research interests include information security, privacy, and cryptography, with a focus on:


My work can be categorised into:

 (a) Research (theoretical & applied): designing provable cryptographic protocols,

 (b) Software engineering: developing new (decentralised) cryptographic applications and smart contracts. 

This diagram outlines my work. 

Education/Academic qualification:

Other Profiles: 

Latest News: 

"Starlit: Privacy-Preserving Federated Learning to Enhance Financial Fraud Detection"

Aydin Abadi, Mohammad Naseri, Steven J. Murdoch, George Theodorakopoulos, Sasi Kumar Murakonda, Suzanne Weller, et al. 

It is available via this link

It has been organised by the British Embassy in Kuwait

"Decentralised Repeated Modular Squaring Service Revisited: Attack and Mitigation''

Aydin Abadi and Steven J. Murdoch

It is available here

     "Delegated Time-Lock Puzzle''

Aydin Abadi, Steven J. Murdoch, et al.

It is available here

"Timed Secret Sharing''

Alireza Kavousi, Aydin Abadi, Philipp Jovanovic

It is available here

University of Oxford, on the topic of "Time-Release Encryption/Puzzle" (in June 2023)

Royal Holloway University, on the topic of "Private Set Intersection with Reward Mechanisms", in London Crypto Day (in June 2023)

"Safeguarding Physical Sneaker Sale Through a Decentralized Medium''

Marwan Zeggari, Aydin Abadi, Renaud Lambiotte, and Mohamad Kassab

It is available here

"Payment with Dispute Resolution: a Protocol for Reimbursing Frauds Victims''

Aydin Abadi and Steven J. Murdoch

"Recurring Contingent Service Payment''

Aydin Abadi, Steven J. Murdoch, and Thomas Zacharias

Our team from UCL Computer Science (Prof. Steven Murdoch and Aydin Abadi), Privitar, and Cardiff University has been awarded the joint FIRST PRIZE of the UK-US Privacy Enhancing Technology (PETs) Prize Challenge (March 2023).

"Protecting (Young) Victims of Cryptocurrency Fraud"

 Aydin Abadi and Steven J. Murdoch

"Earn While You Reveal: Private Set Intersection that Rewards Participants''

Aydin Abadi and Steven J. Murdoch

     It is available here

Aydin Abadi, Steven Murdoch

"Glass-Vault: A Generic Transparent Privacy-preserving Exposure Notification Analytics Platform''

Lorenzo Martinico, Aydin Abadi, Thomas Zacharias, and Thomas Win

It is available here

"A Forward-secure Efficient Two-factor Authentication Protocol''

Steven J. Murdoch and Aydin Abadi

It is available here

"Multi-party Updatable Delegated Private Set Intersection''

Aydin Abadi, Changyu Dong, Steven J. Murdoch,  and Sotirios Terzis

It is available here

Program Committee Membership

Other Academic Services