Security analysis and improvement of a quantum multi-signature protocol

He, Qianqian; Xin, Xiangjun; Yang, Qinglan

doi:10.1007/s11128-020-02962-5

Cited by 29 publications

(5 citation statements)

References 35 publications

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“…According to [29], the quantum efficiency of our scheme can be defined as ε = bs qt+bt . Here, we need not consider the number of bits required for eavesdropping detection , secret information (x j , a(x j )).…”

Section: Efficiency Analysis and Comparisonmentioning

confidence: 99%

An identity-verifiable quantum threshold group signature scheme based on three-particle GHZ states

Zhiming Deng,

Lu,

Chen

et al. 2024

Laser Phys.

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With the advancement of the new generation of information technology in recent years, quantum digital signatures have been widely concerned. Among them, quantum threshold group signatures have become a hot research field due to their advantages such as low cost and strong scalability. Therefore, in this paper, we propose an identity-verifiable quantum threshold group signature scheme based on three-particle GHZ states. The characteristics of the scheme are as follows. The signers can reconstruct the key K for signature’s generation and verification by using the Shamir threshold secret sharing scheme. A quantum signature is generated by performing controlled-not operations, von Neumann measurements, and quantum Fourier transform. When the signature is verified, only classical hash values need to be compared, without comparing quantum states. Identity verification is performed between participants by using hash functions. The efficiency of the scheme is improved by using super-dense coding. Security analysis shows that our scheme is unforgeable and undeniable.

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Section: Efficiency Analysis and Comparisonmentioning

confidence: 99%

An identity-verifiable quantum threshold group signature scheme based on three-particle GHZ states

Zhiming Deng,

Lu,

Chen

et al. 2024

Laser Phys.

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show abstract

“…And because orthogonal product states are easier to prepare than entangled states, they are easier to implement under current technological conditions. In 2021, He et al [21] studied the security of Jiang's quantum multi signature scheme [20] and found that Jiang's scheme [20] suffers from signature forgery attacks and signature receiver denial attacks. Based on the above issues, He et al [21] proposed an improved quantum multi-signature scheme.…”

Section: Introductionmentioning

confidence: 99%

“…In 2021, He et al [21] studied the security of Jiang's quantum multi signature scheme [20] and found that Jiang's scheme [20] suffers from signature forgery attacks and signature receiver denial attacks. Based on the above issues, He et al [21] proposed an improved quantum multi-signature scheme. This scheme addresses the security flaws of Jiang's scheme [20], and since the arbitrator cannot forge any quantum signature of the signer, the arbitrator is semi trustworthy.…”

Section: Introductionmentioning

confidence: 99%

Quantum homomorphic aggregate signature based on quantum Fourier transform

Chen,

Lu,

Deng

et al. 2024

Quantum Inf Process

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With the rapid development of computer and internet technology, quantum signature plays an extremely important role in modern secure communication. Quantum homomorphic aggregate signature, as an important guarantee of quantum signature, plays a significant role in reducing storage, communication, and computing costs. This article draws on the idea of quantum multi-party summation and proposes a quantum homomorphic aggregate signature scheme based on quantum Fourier transform. Our scheme uses n-particle entangled states as quantum channels, with different particles of each entangled state sent separately. This ensures secure transmission of signatures and messages with fewer entangled particles during transmission, further improving the efficiency of quantum signatures. Meanwhile, our scheme generates private keys for each participating party by randomly constructing key generation matrixes. Different signers perform quantum Fourier transforms and basis exchange operations on entangled particles based on different messages and private keys to generate signatures. In addition, the aggregator does not need to measure and verify the signature particles after receiving signatures from different signers, and the group addition operation process has additive homomorphism. Security analysis shows that our scheme has unforgeability, non-repudiation, and can resist various attacks such as entanglement measurement attacks, intercept-resend attacks, private key sequence attacks, and internal attacks by aggregator.

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“…The signature messages required in this scheme are cleverly blinded and prepared in a single particle state, where teleportation is achieved by quantum walking. In 2021, He et al [24] found that Jiang's scheme [22] could not resist forgery attacks and denial attacks, and proposed an improved quantum multi-signature scheme. In the improved scheme, all signers share the private keys with the recipient of signature and the arbitrator, where the arbitrator is semi-trusted.…”

Section: Introductionmentioning

confidence: 99%

A quantum homomorphic signature scheme with verifiable identity based on four-particle Cluster states

Chen,

Lu,

Deng

et al. 2023

Laser Phys. Lett.

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With the development of cloud computing in recent years, homomorphic signatures have become a research hotspot in modern cryptography. This article proposes a quantum homomorphic signature scheme with verifiable identity based on four-particle Cluster states, starting from the identity verification of the signers. Compared with Shang’s scheme (Shang et al 2015 Quantum Inf. Process. 14 393–410), our scheme uses four-particle Cluster states as quantum channels and achieves identity verification of the signers through the use of X operation and quantum measurement techniques. Meanwhile, our scheme extends the length of message M to 2n bits and uses random numbers during the signature process, which makes the scheme more secure. Security analysis shows that our scheme can ensure the security of the keys and the unforgeability of the signatures.

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Security analysis and improvement of a quantum multi-signature protocol

Cited by 29 publications

References 35 publications

An identity-verifiable quantum threshold group signature scheme based on three-particle GHZ states

An identity-verifiable quantum threshold group signature scheme based on three-particle GHZ states

Quantum homomorphic aggregate signature based on quantum Fourier transform

A quantum homomorphic signature scheme with verifiable identity based on four-particle Cluster states

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