Device-Independent Anonymous Communication in Quantum Networks

TL;DR

This paper presents the first fully quantum, device-independent protocol for anonymous communication in quantum networks, enhancing security without relying on classical subroutines or private channels.

Contribution

It introduces a novel, fully quantum protocol with device-independent security proof for anonymous communication in quantum networks.

Findings

First fully quantum anonymous communication protocol

Device-independent security proof established

Applicable to realistic quantum networks

Abstract

Anonymity is a fundamental cryptographic primitive that hides the identities of both senders and receivers during message transmission over a network. Classical protocols cannot provide information-theoretic security for such task, and existing quantum approaches typically depend on classical subroutines and multiple private channels, thereby weakening their security in fully adversarial settings. In this work, we introduce the first fully quantum protocol for anonymous communication in realistic quantum networks with a device-independent security proof.