A Blind Signature Scheme Applying on Electronic Payment Scene Based on Quantum Secret Sharing

Abstract

The basic idea of quantum secret sharing is to share classical information through quantum schemes. In reality, the number of secret bits shared will vary according to the actual situation. For this reason, a secret sharing scheme of double qubits is constructed based on single particle. At the same time, combined with the needs of real life in e-commerce, this paper proposes a quantum blind signature protocol suitable for electronic cash payment scenarios. In this protocol, the blinding of the message is an XOR operation, which makes the solution simpler and easier to implement, and the owner of the message cannot be tracked. Moreover, we use quantum key distribution protocol and quantum one-time pad to guarantee its unconditional security. The quantum blind signature applied to the electronic payment system proposed in this paper could protect user’s anonymity as the traditional E-payment systems do, and also have unconditional security which the classical E-payment systems cannot provide. Security analysis shows that our scheme is unforgeability, undeniability, blindness and unconditionally secure.