DeepAI AI Chat
Log In Sign Up

A symmetric extensible protocol for quantum secret sharing

by   Michael Ampatzis, et al.

This paper introduces the Symmetric Extensible Quantum Secret Sharing protocol, which is a novel quantum protocol for secret sharing. At its heart, it is an entanglement based protocol that relies on the use of maximally entangled GHZ tuples, evenly distributed among the players, endowing the spymaster with the ability to securely share a secret message with her agents. It offers uncompromising security, making virtually impossible for a malicious eavesdropper or a rogue double agent to disrupt its successful execution. It is characterized by symmetry, since all agents are treated indiscriminately, utilizing identical quantum circuits. Furthermore, it can be seamlessly extended to an arbitrary number of agents. After the completion of the quantum part of the protocol, the spymaster will have to publicly transmit some information, in order to enable the agents to discover the secret message. Finally, it has the additional advantage that the spymaster has the privilege to decide when it is the right time for the agents to discover the secret message.


page 5

page 9


Lightweight Mediated Semi-Quantum Secret Sharing Protocol

Due to the exiting semi-quantum secret sharing protocol have two challen...

Multiparty Mediated Semi-Quantum Secret Sharing Protocol

This study proposes the first multiparty mediated semi-quantum secret sh...

QKD based on symmetric entangled Bernstein-Vazirani

This paper introduces a novel entanglement-based QKD protocol, that make...

Approximate reconstructability of quantum states and noisy quantum secret sharing schemes

We introduce and analyse approximate quantum secret sharing in a formal ...

Shared-Dining: Broadcasting Secret Shares using Dining-Cryptographers Groups

A k-anonymous broadcast can be implemented using a small group of dining...

Quantum secret sharing using GHZ state qubit positioning and selective qubits strategy for secret reconstruction

The work presents a novel quantum secret sharing strategy based on GHZ p...

Quantum secret sharing for a multipartite system under energy dissipation

We propose a protocol for multipartite secret sharing of quantum informa...