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Iranian Conference on Electrical Engineering

A quantum blind signature scheme for electronic payments

Siavash Khodambashi, Ali Zakerolhosseini

Published May 1, 2014• 7 citations
Publisher

Abstract

On-line merchants must have security protocol and procedures in place to carry out transactions more securely, Due to the popularity of e-commerce payment systems and the widespread use of the internet-based shopping and banking. In this paper we introduce an original blind signature based on quantum cryptographic principles providing unconditional security for off-line transactions. The proposed scheme guarantees the security of payment in real applications by the laws of quantum mechanics. We describe our proposed scheme in detail through a real example and discuss about its unconditional security.

DOI
10.1109/iraniancee.2014.6999660

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On-line merchants must have security protocol and procedures in place to carry out transactions more securely, Due to the popularity of e-commerce payment systems and the widespread use of the internet-based shopping and banking. In this paper we introduce an original blind signature based on quantum cryptographic principles providing unconditional security for off-line transactions. The proposed scheme guarantees the security of payment in real applications by the laws of quantum mechanics. We describe our proposed scheme in detail through a real example and discuss about its unconditional security.
In this paper, a new E-payment system based on quantum blind and group signature is proposed. Existing E-payment systems based on classical cryptography cannot guarantee the security with the emergency of quantum computers. Compared to the existing E-payment system, our quantum E-payment scheme could protect not only the user's anonymity but also the inner structure of customer group. In addition, our system adopts quantum key distribution, one-time pad, and audit mechanism to ensure unconditional security.
A new e-payment system based on quantum blind and group signature is proposed.Existed e-payment systems which based on the classical cryptography cannot guarantee the security because of the unsecure of classical blind and group signature.Compared with the classical e-payment system,this quantum e-payment scheme can realize not only the function of e-payment but also the unconditionally security.To achieve that,quantum key distribution,one-time pad and quantum blind and group signatures are adopted in this scheme.Moreover,the mechanism of audit is introduced to detect the forgery.
Abstract A practical E-payment protocol is presented in this paper. It is based on quantum multi-proxy blind signature. Adopting the techniques of quantum key distribution, one-time pad and quantum multi-proxy blind signature, our E-payment system could protect user’s anonymity as the traditional E-payment systems do, and also have unconditional security, which the classical E-payment systems can not provide. Furthermore, compared with the existing quantum E-payment systems, this practical system could not only support mobile E-payment transactions but also inter-bank transactions .
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.
Motivated by the elegant structure of the cluster states, we design an ingenious quantum blind dual-signature scheme, which is implemented by the way of measurement on the cluster sates and can solve some secure information problems between the consumers, merchants, and banks in electronic transaction. In this paper, the initial phase, the signing phase and the verification phase are included. In the signing phase, not only does Alice send a signature to Bob, but Charlie also sends a blind signature to Bob to generate a quantum dual signature. In the verification phase, Bob determines the authenticity and integrity of the information based on the results of the final measurements. The security analysis demonstrates that our signature scheme cannot be forged and denied by any attackers. Importantly, it has a variety of applications to electronic commerce or electronic payment system.
Recently, the laws of quantum physics have amazed classical cryptography and aided researchers to provide secure communications in presence of adversaries. In this paper we present a novel weak blind signature scheme whose security is guaranteed by fundamental principles of quantum physics. Despite previous schemes which are taking advantage of quantum entangled states, our proposed quantum blind signature relies only on Quantum Key Distribution (QKD) protocol. We show throughout this paper that our proposed quantum weak blind signature achieves a good position in security and reliability. In addition, it is feasible for the proposed scheme to become commercialized with current technology. Hence, it can be widely used for e-payment, e-government, e-business and etc.