Practical quantum oblivious transfer and bit commitment protocols

TL;DR

This paper introduces practical quantum protocols for oblivious transfer and bit commitment that utilize weak coherent pulses, accommodating real-world imperfections like errors and losses, and are implementable with current technology.

Contribution

It presents new practical quantum protocols for oblivious transfer and bit commitment using weak coherent pulses, suitable for real-world conditions.

Findings

Protocols are feasible with current optoelectronic devices.

Protocols tolerate errors and losses in channels and detectors.

Implementation details demonstrate practicality.

Abstract

We propose a practical quantum oblivious transfer and a bit commitment protocols which replace the single-photon source with weak coherent pulses and allow error and loss in channel and detectors. These protocols can be realized with available optoelectronic apparatus.