I am a PhD student in the Department of Computer Science and Automation at Indian Institute of Science, Bangalore, working with Dr. Arpita Patra. I obtained my integrated BS-MS, in Mathematics from Indian Institute of Science Education and Research, Mohali. My research interest lies in the applied side of secure multiparty computation (MPC). Specifically, I have worked on designing privacy-preserving solutions via MPC for various real-world applications such as machine learning, private heavy hitters, pattern matching, and graph algorithms, to name a few. These works have been published in top-tier venues such as CCS, TheWebConf, PoPETs, and TDSC.

Publications

MatchQuest: Fast and Secure Pattern Matching .

PoPETs 2025. [paper] (Core A)

Nishat Koti, Varsha Bhat Kukkala, Arpita Patra and Bhavish Raj Gopal.

Entrada to Secure Graph Convolutional Networks.

IEEE TDSC 2025. [paper] (Core A)

Nishat Koti, Varsha Bhat Kukkala, Arpita Patra and Bhavish Raj Gopal.

Graphiti: Secure Graph Computation Made More Scalable

ACM CCS 2024. (Core A*)

Nishat Koti, Varsha Bhat Kukkala, Arpita Patra and Bhavish Raj Gopal.

Vogue: Faster Computation of Private Heavy Hitters.

IEEE TDSC 2023. [paper] (Core A)

Pranav Jangir, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, Bhavish Raj Gopal and Somya Sangal.

Shield: Secure Allegation Escrow System with Stronger Guarantees.

TheWebConf 2023. [paper] (Core A*)

Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.

Ruffle: Rapid 3-Party Shuffle Protocols.

PoPETs 2023. [paper] (Core A)

Pranav Shriram A, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, Bhavish Raj Gopal, and Somya Sangal.

Find Thy Neighbourhood: Privacy-Preserving Local Clustering.

PoPETs 2023. [paper] (Core A)

Pranav Shriram A, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.

PentaGOD: Stepping beyond Traditional GOD with Five Parties.

ACM CCS 2022. [paper] (Core A*)

Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.

Preprints

GraSP: Secure Collaborative Graph Processing Made Scalable. [paper]

Siddharth Kapoor, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra and Bhavish Raj Gopal.

Talks

Privacy Preserving Graph Analysis: The Journey So Far and The Road Ahead. CISPA (Nov 2025); KU Leuven (Sep 2025).

Secure Graph Computation. George Washington University (Jul 2025); George Mason University (Jul 2025).

Match Quest: Fast and Secure Pattern Matching. PETS 2025, Washington DC, USA.

Privacy Preserving Graph Analysis. EECS Symposium 2025, IISc, Bangalore.

Graphiti: Secure Graph Computation Made More Scalable. ACM ARCS 2025; ACM CCS 2024; NIST WPEC 2024.

Shield: Secure Allegation Escrow System with Stronger Guarantees. ACM ARCS 2024, NISER Bhubaneswar.

Entrada to Secure Graph Convolutional Networks. CyPhySS 2023, IIT Kharagpur.

Find thy neighbourhood: Privacy-preserving local clustering. TPMPC 2023, Aarhus University, Denmark.

Digital Signatures. ISEA Workshop 2023, SERC, Indian Institute of Science.