Oblivious transfer based on single-qubit rotations

TL;DR

This paper introduces a quantum oblivious transfer protocol using single-qubit rotations, leveraging quantum mechanics for security and feasible with current optical technology, even under technological constraints.

Contribution

It proposes a practical quantum oblivious transfer protocol based on single-qubit rotations, extending to single-bit transfer, with security relying on quantum laws and technological limitations.

Findings

Protocol is practically implementable with current optical technology.

Security depends on quantum mechanical principles and technological constraints.

Extends to single-bit oblivious transfer based on the bit-string protocol.

Abstract

We present a bit-string quantum oblivious transfer protocol based on single-qubit rotations. Our protocol is built upon a previously proposed quantum public-key protocol and its practical security relies on the laws of Quantum Mechanics. Practical security is reflected in the fact that, due to technological limitations, the receiver (Bob) of the transferred bit-string is restricted to performing only "few-qubit" coherent measurements. We also present a single-bit oblivious transfer based on the proposed bit-string protocol. The protocol can be implemented with current technology based on optics.