Security problem on arbitrated quantum signature schemes

Choi, Jeong Woon; Chang, Ku-Young; Hong, Dowon

doi:10.1103/physreva.84.062330

Cited by 79 publications

(64 citation statements)

References 21 publications

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“…Whether these countermeasures can overcome all the security problems discovered in Refs. [7][8][9][10] and how to design an AQS scheme which can withstand existing or potential attacks deserve further research.…”

Section: Discussionmentioning

confidence: 99%

On the security of arbitrated quantum signature schemes

Wen

et al. 2012

J. Phys. A: Math. Theor.

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Due to potential capability of providing unconditional security, arbitrated quantum signature (AQS) schemes, whose implementation depends on the participation of a trusted third party, received intense attention in the past decade. Recently, some typical AQS schemes were cryptanalyzed and improved. In this paper, we analyze security property of some AQS schemes and show that all the previous AQS schemes, no matter original or improved, are still insecure in the sense that the messages and the corresponding signatures can be exchanged among different receivers, allowing the receivers to deny accepting the signature of an appointed message. Some further improvement methods on the AQS schemes are also discussed.

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Section: Discussionmentioning

confidence: 99%

On the security of arbitrated quantum signature schemes

Wen

et al. 2012

J. Phys. A: Math. Theor.

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“…Alice uses single qubit rotation operators for the generation of the redundant message and the signature operation. The generated signature pair is encrypted by using (I, H )-type quantum encryption [38]. Receiving the encrypted signature pair from Alice, TC keeps the redundant message and sends the signature to Bob.…”

Section: Quantum Signature Scheme Using a Single Qubit Rotation Operatormentioning

confidence: 99%

“…TC receives signature pair sign A and h (I D r ) from Alice and obtains |S A and |R A by decrypting sign A as follows [38] ⊗…”

Section: Preparation Phasementioning

confidence: 99%

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Quantum Signature Scheme Using a Single Qubit Rotation Operator

et al. 2014

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We present a quantum signature scheme using a single qubit rotation operator. In this protocol, the trusted center confirms the quantum signature and thus conforms with other quantum signature schemes. Utilizing the unitary properties of a single qubit rotation operator and Pauli operators, our protocol provides signature security and enhances the efficiency of communication. In addition, our protocol -using only a single qubit measurement -facilitates the ease of implementation and enhances convenience for users. The security of the protocol is analyzed.

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“…On the other hand, it has been shown that it could be possible to quantumly sign quantum messages with the assistance of an arbitrator, which is called the arbitrated quantum signature (AQS) [5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Forgeable quantum messages in arbitrated quantum signature schemes

Kim

Lee

2017

Quantum Inf Process

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Recently, the concept on 'forgeable quantum messages' in arbitrated quantum signature schemes was introduced by T. Kim et al. [Phys. Scr., 90, 025101 (2015)], and it has been shown that there always exists such a forgeable quantum message for every known arbitrated quantum signature scheme with four quantum encryption operators and the specific two rotation operators. We first extend the result to the case of any two unitary rotation operators, and then consider the forgeable quantum messages in the schemes with four quantum encryption operators and three or more rotation operators. We here present a necessary and sufficient condition for existence of a forgeable quantum message, and moreover, by employing the condition, show that there exists an arbitrated quantum signature scheme which contains no forgeable quantum message-signature pairs.

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Security problem on arbitrated quantum signature schemes

Cited by 79 publications

References 21 publications

On the security of arbitrated quantum signature schemes

On the security of arbitrated quantum signature schemes

Quantum Signature Scheme Using a Single Qubit Rotation Operator

Forgeable quantum messages in arbitrated quantum signature schemes

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