Quantum Zero-Knowledge Protocol Using Quantum Bit Commitment without Quantum Memory

TL;DR

This paper introduces a practical quantum zero-knowledge protocol based on quantum bit commitment that can be implemented with current technology, facilitating experimental realization of quantum cryptographic protocols.

Contribution

It presents a new quantum zero-knowledge protocol leveraging quantum bit commitment that does not require quantum memory, making it feasible with existing technology.

Findings

Protocol is implementable with current quantum technology

No quantum memory required for the protocol

Facilitates experimental realization of quantum zero-knowledge proofs

Abstract

Zero-knowledge proof system is an important protocol that can be used as a basic block for construction of other more complex cryptographic protocols. Quantum zero-knowledge protocols have been proposed but, since their implementation requires advanced quantum technology devices, experimental implementation of zero-knowledge protocols have not being reported. In this work, we present a quantum zero-knowledge protocol based on a quantum bit commitment protocol that can be implemented with today technology. Hence, our quantum zero-knowledge protocol can be readily implemented.