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Chinese Journal of Quantum Electronics

A quantum proxy weak blind signature scheme

Yongzhi Chen, Yun Liu, Xiaojun Wen

Published May 28, 2011• 1 citation
OpenAlex

Abstract

Proxy blind signature was applied to the electronic paying system,electronic voting system, mobile agent system,security of internet,et al.A quantum proxy weak blind signature scheme is presented based on the correlation of Einstein-Padolsky-Rosen(EPR)pairs and controlled teleportation.Comparing the traditional proxy blind signature schemes based on computing complexity,the scheme uses the physical characteristics of quantum mechanics to implement message blinding,signature and verification,so it could guarantee not only the unconditionally security of the scheme but also anonymity of the message owner.

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Proxy blind signature was applied to the electronic paying system,electronic voting system, mobile agent system,security of internet,et al.A quantum proxy weak blind signature scheme is presented based on the correlation of Einstein-Padolsky-Rosen(EPR)pairs and controlled teleportation.Comparing the traditional proxy blind signature schemes based on computing complexity,the scheme uses the physical characteristics of quantum mechanics to implement message blinding,signature and verification,so it could guarantee not only the unconditionally security of the scheme but also anonymity of the message owner.
Abstract In this paper, a multi-proxy blind signature scheme based on controlled quantum teleportation is proposed. Entangled four-qubit Cluster state functions as quantum channel, which needs less resource to complete the quantum multi-proxy blind signature. The scheme uses the physical characteristics of quantum mechanics to guarantee its blindness, unforgeability, and undeniability. The eavesdropping check is used to ensure the security. Our scheme has a foreseeable application to the E-business, E-governments, and etc.
Digital signatures are widely used in electronic communications, for example in electronic commerce and e-mail. But classical digital signature scheme only offer security relying on computational assumptions. In contrast, quantum digital signatures provide security based on fundamental principles of quantum physics. Quantum group signatures provide anonymity for signatory, quantum blind signatures provide confidentiality for signed messages. In this paper we demonstrate a quantum group blind signature scheme which have the properties both of group signatures and blind signatures. Besides, the security of our scheme is guaranteed by the quantum mechanics, so without any computational assumption. the group property and blind property of our scheme profits from the properties of the measurement-based quantum computation (MBQC). Our quantum group blind signature scheme can be widely used in e-voting system, e-cash, e-commerce, etc.
Abstract When the original signer is unable to sign and the proxy signer does not know the information content, proxy blind signature comes into being and becomes a hot topic in cryptography research. This paper combines the methods of proxy blind signature, controlled quantum teleportation and multi-party verification, and proposes a multi-party verifiable quantum proxy blind signature scheme based on controlled quantum teleportation. This scheme has the following features: using a Hash function shared by all participants for authentication can effectively solve the problem of identity identification among members; in order to facilitate the original signer to ensure the security of proxy authorization, the quantum proxy signature authorization form is used to generate quantum states with mutual unbiased fundamental particles. The security analysis shows that the scheme is unforgeable and undeniable, and can resist intercept-forgery attack and collusive attack.