collaborators

7 papers

cs.CR2026

Unclonable Encryption in the Haar Random Oracle Model

James Bartusek, Eli Goldin

We construct unclonable encryption (UE) in the Haar random oracle model, where all parties have query access to for a Haar random unitary . Our scheme sati…

quant-ph2026

On the Cryptographic Structure Required for Verifying Qubits

James Bartusek, Itay Shalit

Classically testing for the presence of anti-commuting operators on a quantum device is a critical tool underpinning recent progress in classical verification of quantum computatio…

quant-ph2026

A Modular Approach to Succinct Arguments for QMA

James Bartusek, Jiahui Liu, Giulio Malavolta

Succinct argument systems are of central importance to modern crytpography, enabling the efficient verification of computational claims. In the classical setting, Kilian (STOC 92)…

quant-ph2026

How To Track Qubits Through Space and Time (Or: Sailing in a Quantum Boat)

James Bartusek, Zikuan Huang, Leo Orshansky +1

While quantum position verification aims to certify a prover's location using quantum information, existing security definitions only guarantee that part of the successful adversar…

cs.CR2026

A Note on Boosting Uncloneable Encryption in Microcrypt

James Bartusek, Eli Goldin

In this note, we consider the setting of uncloneable encryption satisfying uncloneable indistinguishability, a form of symmetric key encryption that prevents the cloning of ciphert…

quant-ph2026

Classical Obfuscation of Quantum Circuits via Publicly-Verifiable QFHE

James Bartusek, Aparna Gupte, Saachi Mutreja +1

A classical obfuscator for quantum circuits is a classical program that, given the classical description of a quantum circuit , outputs the classical description of a functional…