A multi-group e-commerce signature scheme based on quantum teleportation Online publication date: Mon, 18-May-2020
by Jinqiao Dai; Shibin Zhang; Jinyue Xia
International Journal of Computational Science and Engineering (IJCSE), Vol. 22, No. 2/3, 2020
Abstract: In this paper, we propose a multi-group e-commerce signature scheme based on quantum teleportation and Bell states. Compared with the recent quantum group signature scheme, what our scheme has optimised is the traditional signature model with only one group manager and the utilisation of quantum resources. By setting up different group managers in different groups, the scheme promotes the traditional signature model into a more practical situation and can be easily used in e-payment system. In addition, the quantum teleportation and Pauli operations based on the Bell states are used in the transaction process, and these techniques can also be easily implemented under practical situations. Finally, the security analysis shows that the scheme can defend against different attacks from internal and external sources, including intercepting resend attacks and entanglement attacks. It also proves that the scheme is reliable, safe and effective facing with denial and forgery.
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