Ajith Suresh

Ajith Suresh

Making computation private by design — cryptography researcher at the intersection of MPC, privacy-preserving ML, and federated learning.

🏛 Lead MPC Researcher · TII Abu Dhabi 📍 Abu Dhabi, UAE 🎓 Google PhD Fellow 2019
20+ Publications
2,130 Citations (Scholar, May 2026)
10+ Years in Crypto Research
3 Countries Worked In

Research Focus

Three interconnected pillars that drive my work in applied cryptography

🔐

Secure Multi-Party Computation

Designing efficient MPC protocols that allow multiple parties to jointly compute on private inputs — without any party revealing their data. Focus on practical, high-throughput constructions for real-world deployment.

Secret Sharing Garbled Circuits OT Extension 3PC / 4PC
🧠

Privacy-Preserving Machine Learning

Building MPC-based frameworks for private inference and training of neural networks. Enabling ML models to be evaluated on sensitive data without exposing the model or the data to any party.

PPML Neural Networks Fixed-Point Arith. Lookup Tables
🌐

Secure Federated Learning

Combining MPC with federated learning to achieve both privacy and robustness — defending against poisoning attacks and aggregation leakage in large-scale distributed ML systems.

Federated Learning Secure Aggregation Byzantine Robustness

Selected Publications

Key contributions across MPC, PPML, and federated learning — full list with links

Skills & Expertise

Tools, techniques, and concepts from a decade of cryptography research

Cryptographic Primitives

  • Secret Sharing (Shamir, Additive)
  • Garbled Circuits
  • Oblivious Transfer
  • Homomorphic Encryption
  • Zero-Knowledge Proofs

ML & Systems

  • Neural Network Inference
  • Federated Learning Protocols
  • Fixed-Point Arithmetic
  • Quantised Aggregation
  • Byzantine-Robust Aggregation

Languages & Tools

  • C++ (primary research language)
  • Python
  • LaTeX
  • Linux / HPC Clusters
  • Git / GitHub

Career Path

From Kerala to Bangalore to Darmstadt to Abu Dhabi

April 2025 – Present

Lead MPC Researcher — Technology Innovation Institute, Abu Dhabi

Leading MPC research at the Cryptography Research Center (CRC), driving protocol design and applied cryptography initiatives.

May 2023 – March 2025

Senior MPC Researcher — Technology Innovation Institute, Abu Dhabi

Research on privacy-preserving ML for IoT, large-scale federated learning, and circuit synthesis for secure computation.

October 2021 – March 2023

Post-doctoral Researcher — TU Darmstadt, Germany (ENCRYPTO Group)

Post-doc under Prof. Thomas Schneider. Produced FLUTE, Don't Eject the Impostor, WW-FL, SafeFL, and PrivMail.

September 2017 – July 2021

Ph.D in Computer Science — IISc Bangalore, India

Thesis on MPC for small populations with applications to PPML, under Prof. Arpita Patra. Google PhD Fellow 2019. Outstanding thesis commendation.

August 2014 – June 2017

M.Tech (Research) — IISc Bangalore, India

Research master's in Secure Multi-Party Computation, laying the groundwork for ASTRA and early PPML protocols.

June 2010 – April 2014

B.Tech in CSE — College of Engineering (CET), Trivandrum, India

Best Outgoing Student in CSE (P Rathnaswamy Memorial Endowment). AIR 807 in GATE 2014.

Let's Collaborate

Open to invited talks, collaboration opportunities, in-depth technical discussions, and exploring joint research. Drop an email or connect on social media.