An Efficient Quantum Oblivious Transfer Protocol

Sushmita Sarkar; Vikas Srivastava; Tapaswini Mohanty; Sumit Kumar Debnath; Sihem Mesnager

Paper 2025/393

An Efficient Quantum Oblivious Transfer Protocol

Sushmita Sarkar

, Department of Mathematics, National Institute of Technology Jamshedpur, Jamshedpur-831014, India

Vikas Srivastava, Department of Mathematics, National Institute of Technology Jamshedpur, Jamshedpur-831014, India

Tapaswini Mohanty, Department of Mathematics, National Institute of Technology Jamshedpur, Jamshedpur-831014, India

Sumit Kumar Debnath, Department of Mathematics, National Institute of Technology Jamshedpur, Jamshedpur-831014, India

Sihem Mesnager, Department of Mathematics, University of Paris VIII, F-93526 Saint-Denis; Laboratory Analysis, Geometry and Applications, LAGA, University Sorbonne Paris Nord, CNRS, UMR 7539, F-93430, Villetaneuse, France, Telecom Paris, Polytechnic Institute of Paris, 91120 Palaiseau, France.

Abstract

Oblivious Transfer (OT) is a significant two party privacy preserving cryptographic primitive. OT involves a sender having several pieces of information and a receiver having a choice bit. The choice bit represents the piece of information that the receiver wants to obtain as an output of OT. At the end of the protocol, sender remains oblivious about the choice bit and receiver remains oblivious to the contents of the information that were not chosen. It has applications ranging from secure multi-party computation, privacy-preserving protocols to cryptographic protocols for secure communication. Most of the classical OT protocols are based on number theoretic assumptions which are not quantum secure and existing quantum OT protocols are not so efficient and practical. Herein, we present the design and analysis of a simple yet efficient quantum OT protocol, namely qOT. qOT is designed by using the asymmetric key distribution proposed by Gao et al. [18] as a building block. The designed qOT requires only single photons as a source of a quantum state, and the measurements of the states are computed using single particle projective measurement. These make qOT efficient and practical. Our proposed design is secure against quantum attacks. Moreover, qOT also provides long-term security.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. Cluster Computing
DOI: 10.1007/s10586-024-04642-w
Keywords: Oblivious transfer Quantum cryptography Quantum key distribution
Contact author(s): sarkarsushmita408 @ gmail com
vikas math123 @ gmail com
mtapaswini37 @ gmail com
sd iitkgp @ gmail com
smesnager @ univ-paris8 fr
History: 2025-03-04: approved; 2025-03-02: received; See all versions
Short URL: https://ia.cr/2025/393
License: CC0

BibTeX

@misc{cryptoeprint:2025/393,
      author = {Sushmita Sarkar and Vikas Srivastava and Tapaswini Mohanty and Sumit Kumar Debnath and Sihem Mesnager},
      title = {An Efficient Quantum Oblivious Transfer Protocol},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/393},
      year = {2025},
      doi = {10.1007/s10586-024-04642-w},
      url = {https://eprint.iacr.org/2025/393}
}