I am a CNRS postdoc at IRIF, Université Paris Cité working with Geoffroy Couteau. Previously, I finished my PhD in March 2025 at IIT Bombay, India, under the supervision of Manoj Prabhakaran. Here is my PhD Thesis. I am broadly interested in the fields of theoretical and applied cryptography.
Kaartik Bhushan
📧 kbhushan@irif.fr
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Post-Quantum Public-Key Pseudorandom Correlation Functions for OT
Shweta Agrawal, Kaartik Bhushan, Geoffroy Couteau and Mahshid Riahinia
CRYPTO'26
Dynamic Bounded-Collusion Streaming Functional Encryption from Minimal Assumptions
Kaartik Bhushan, Alexis Korb and Amit Sahai
CRYPTO'25
Leakage-Resilient Incompressible Cryptography: Constructions and Barriers
Kaartik Bhushan, Rishabh Goyal, Venkata Koppula, Varun Narayanan, Manoj Prabhakaran and Mahesh Sreekumar Rajasree
ASIACRYPT'24
Communication Complexity vs Randomness Complexity in Interactive Proofs
Benny Applebaum, Kaartik Bhushan and Manoj Prabhakaran
Information-Theoretic Cryptography'24
Homomorphic Indistinguishability Obfuscation and its Applications
Kaartik Bhushan, Venkata Koppula and Manoj Prabhakaran
ITCS'24
R3PO: Reach-Restricted Reactive Program Obfuscation and its Application to MA-ABE
Kaartik Bhushan, Sai Lakshmi Bhavana Obbattu, Manoj Prabhakaran and Rajeev Raghunath
PKC'24
Secure Non-Interactive Reducibility is Decidable
Kaartik Bhushan, Ankit Kumar Misra, Varun Narayanan and Manoj Prabhakaran
TCC'22
Streaming Functional Encryption from Minimal Assumptions
Crypto Day, IRIF, Paris -- November 2025
Communication Complexity vs Randomness Complexity in Interactive Proofs
AlgoComp Seminar, IRIF, Paris -- October 2025
Communication Complexity vs Randomness Complexity in Interactive Proofs
Information-Theoretic Cryptography Conference, Stanford, USA -- August 2024
Streaming Functional Encryption from Minimal Assumptions
Cryptography Seminar, Aarhus University, Denmark -- May 2024
Homomorphic Indistinguishability Obfuscation and its Applications
Stanford Security Seminar (Online) -- March 2024
Homomorphic Indistinguishability Obfuscation and its Applications
ITCS Conference, University of California, Berkeley, USA -- January 2024
Program Obfuscation and its Applications
Research Symposium, IIT Bombay, India -- March 2023
Program Obfuscation: A Basic Introduction
Theory Seminar, IIT Bombay, India -- November 2022
Modern Algebra
Assited Prof. Manindra Agrawal (IIT Kanpur), NPTEL -- Fall 2023
Algorithms
Assisted Prof. Madhavan Mukund (CMI), NPTEL -- Fall 2023
Advanced Tools from Modern Cryptography
Assisted Prof. Manoj Prabhakaran, IIT Bombay -- Fall 2023
Geometric Algorithms
Assisted Prof. Sujoy Bhore, IIT Bombay -- Spring 2023
Cryptography and Network Security
Assisted Prof. Saurav Mukopadhyay (IIT KGP), NPTEL -- Fall 2022
Algorithms and Complexity
Assisted Prof. Mrinal Kumar, IIT Bombay -- Fall 2022
Basic Cryptography
Assisted Prof. Vinod Prabhakaran and Prof. Akshayaram Srinivasan, Vigyan Vidushi, TIFR -- Summer 2021
Cryptography and Network Security
Assisted Prof. Manoj Prabhakaran, IIT Bombay -- Spring 2020, 2021
Discrete Structures
Assisted Prof. Manoj Prabhakaran, IIT Bombay -- Fall 2019, 2020, 2021
Asiacrypt 2026
Sub-Reviewed for CRYPTO 2021, 2022, 2025, 2026
Sub-Reviewed for EUROCRYPT 2024, 2025
Sub-Reviewed for TCC 2021, 2022, 2024