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Jisuanji yingyong yanjiu

Strong blind quantum signature protocol based on pure W-like state

Xin-Wei Zha

Published Jan 1, 2012• 0 citations
OpenAlex

Abstract

Aiming at pure three-qubit states and the measure of entanglement,this paper proposed pure W-like state.Based on pure W-like state,this paper proposed a strong blind quantum signature protocol.The protocol adopted the quantum key distribution,the quantum fingerprint and one-time pad.The protocol ensures that the signature is blind and the message owner is untraceable.Moreover,the protocol provides the unconditionally security,lower complexity and best quantum bit efficiency.This protocol is a novel method for constructing the strong blind quantum signature protocol.

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Aiming at pure three-qubit states and the measure of entanglement,this paper proposed pure W-like state.Based on pure W-like state,this paper proposed a strong blind quantum signature protocol.The protocol adopted the quantum key distribution,the quantum fingerprint and one-time pad.The protocol ensures that the signature is blind and the message owner is untraceable.Moreover,the protocol provides the unconditionally security,lower complexity and best quantum bit efficiency.This protocol is a novel method for constructing the strong blind quantum signature protocol.
In this paper, we introduce the cluster states into the weak blind quantum signature mechanism and put forward a weak blind quantum signature protocol with the four-particle entangled cluster states. The proposed protocol generates four relatively bases to be served as the measurement bases for two- qubit. The employment of QKD protocol and one-time pad encryption algorithm ensure the unconditional security of the protocol. Moreover, we hereinafter prove the security of the protocol against some individual eavesdropping attacks, and we show that our protocol has the characteristics of unforgeability, undeniability, blindness and traceability.
In this paper, we put forward a weak blind quantum signature scheme based on quantum entanglement swapping of Bell states. Different from the existing quantum signature schemes, our scheme can offer two-step verification security services to ensure the validity of the verification. In order to guarantee the unconditional security of the scheme, the quantum key distribution protocol and one-time pad encryption algorithm are employed in our scheme. Besides, the entanglement swapping of Bell states mechanism enhances the security of verification criteria. The proposed scheme has the properties of nonforgeability, nonrepudiation, blindness, and traceability.
A strong blind quantum signature protocol was presented based on secret sharing.In this protocol,the three pho-tons of each GHZ(Greenberger-Horne-Zeilinger)triplet are delivered to the message owner Alice,signatory Trent and verifier Bob respectively.Alice measures her photon to blind her message while Trent measures his photon to sign the blinded message,and then Bob verifies the signature according to the measuring results of his photon under the relationship of GHZ states.However,Bob's ac-tions are restricted by the quantum fingerprints and the audit program.Our protocol ensures that the signature is blind and the mes-sage owner is untraceable.Moreover,its security was not influenced by the computational resource of attackers.
We propose a quantum blind signature scheme that achieves perfect security under the assumption of an honest offline repository. The security of the protocol also relies on perfect private quantum channels, which are achievable using quantum one-time pads with keys shared via a quantum key distribution (QKD) protocol. The proposed approach ensures that signatures cannot be copied and that the sender must compromise to a single message, which are important advantages over classical protocols for certain applications.
In a quantum partially blind signature (QPBS) scheme, the contradiction between anonymity and controllability of completely blind signature (BS) schemes was better solved by adding common negotiated public information between the signer and the requester (the message holder). After reviewing the proposed scheme, we give an analysis about it and then propose a novel QPBS scheme without entanglement. The security without preconditions of this signature scheme is ensured by the secure quantum key distribution (QKD) protocol and quantum one-time pad (QOTP). Furthermore, in the process of security analysis, it proves that our scheme satisfies the foundational attribution of partially blind signature (PBS). Moreover, the scheme can solve the problem we put forward so as to allow it to have a wider application in the future.