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Indonesian Journal of Electrical Engineering and Computer Science

A Quantum Entanglement Swapping Secret Sharing Agreement Model

Shuyue Wu

Published Nov 1, 2016• 1 citation
Publisher

Abstract

A verifiable quantum secret sharing protocol model is proposed based on entanglement swapping. The dealer communicates with the participants one by one. The detection pattern or information pattern are choosed by uniform distribution, until he can make sure the information safe to the participant, and then he communicates with the next participant. This agreement not only is to avoid eavesdropping outside, and it can prevent internal fraud, thus the accuracy and security are ensured for information sharing, the verifiable results are achieved.

DOI
10.11591/ijeecs.v4.i2.pp406-411

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A verifiable quantum secret sharing protocol model is proposed based on entanglement swapping. The dealer communicates with the participants one by one. The detection pattern or information pattern are choosed by uniform distribution, until he can make sure the information safe to the participant, and then he communicates with the next participant. This agreement not only is to avoid eavesdropping outside, and it can prevent internal fraud, thus the accuracy and security are ensured for information sharing, the verifiable results are achieved.
This paper proposed a verifiable quantum secret sharing protocol based on entanglement swapping.The dealer communicated with the participants one by one.He chose the detection pattern or information pattern by uniform distribution,until he could make sure the information to the participant was safe,and then communicated with the next participant.It could prevent not only the external eavesdropping but also the internal cheating,and guaranteed the correction and security of information shared for verifying.
We proposes a verifiable quantum secret sharing protocol based on entanglement swapping in this paper. It provides one-to-one communication to dealer who want to connect with the other participants. The dealer chooses the detection or information mode by uniform distribution until he can make sure the information to the participant is safe, and then communicates with the next participant. It can prevent not only the external eavesdropping but also the internal cheating and ensure the validity of information shared to participant by this protocol.
The insecurity of the protocols for quantum secret sharing(QSS) based on entanglement swapping was analyzed,and a new method of QSS based on entanglement swapping was proposed.The entanglement states were all generated by the sender,and the order of two photons sent to the same agent was randomly changed.After the photons arrived at the receiver,for the detection mode,the order of the two photons was announced,so that the two parties detected the security of the quantum channel;for the information mode,the two receivers respectively did Bell measurement on the two photons they owned,and then communicated through classical channel to share the secret key with the sender.Analysis results show that this protocol not only ensures the validity and security of the shared information,but also only uses the entanglement states of two photons without unitary operation.
A verifiable quantum secret sharing protocol using quantum walks on a lattice is proposed in this paper. The protocol utilizes generalized Bell states as the initial quantum resource, integrating the quantum walk evolution operator U with the global shift operator GabG_{ab}Gab​ to facilitate joint encrypted transmission among multiple participants. A bidirectional identity authentication mechanism based on hash functions is introduced to ensure the legitimacy of all communication parties, which effectively resists impersonation attacks. Random decoy particles are randomly prepared in either the ZdZ_{d}Zd​ or XdX_{d}Xd​ basis and inserted into the transmission sequence, enabling real-time eavesdropping detection on the quantum channel. In the secret reconstruction phase, a public verification mechanism is designed to allow participants to verify the correctness of the recovered secret and identify internal dishonest behaviors. Security analysis demonstrates that the protocol achieves information-theoretic security, resisting typical external attacks such as intercept-resend, measure-resend, and entangle-measure attacks, as well as collusion attacks from dishonest internal participants. Compared with existing quantum-walk-based secret sharing schemes, the proposed protocol maintains high qubit efficiency while supporting both identity authentication and public verifiability, thus possessing stronger practicality and security.
A verifiable (t, n) threshold quantum secret sharing scheme with sequential communication was proposed recently. In this work, we analyze its security and then give two new participant attacks. Using the first participant attack, the first participant can obtain the dealer's secrets by himself with nonzero probability without being detected. Using the second participant attack, a dishonest participant can gain access to the dealer's secrets by himself in the secret reconstruction phase while he can make the other participants recover false secrets instead of the real ones without being detected. Furthermore, we present an effective way to prevent these attacks.