On the existence of loss-tolerant quantum oblivious transfer protocols

TL;DR

This paper introduces a quantum oblivious transfer protocol that remains secure even when messages are lost, addressing practical issues in quantum cryptography.

Contribution

The paper presents a novel quantum oblivious transfer protocol that is robust against message loss, enhancing real-world applicability.

Findings

Protocol is impervious to lost messages.

Security surpasses classical communication-based protocols.

Addresses practical imperfections in quantum cryptography.

Abstract

Oblivious transfer is the cryptographic primitive where Alice sends one of two bits to Bob but is oblivious to the bit received. Using quantum communication, we can build oblivious transfer protocols with security provably better than any protocol built using classical communication. However, with imperfect apparatus one needs to consider other attacks. In this paper we present an oblivious transfer protocol which is impervious to lost messages.