A Semi-Quantum Protocol for Multi-Party Simultaneous Ascending Auctions

Xiuqi Wu,Yu Yang,Baichang Wang,Yunguang Han

Published 2025 in 2025 2nd International Symposium on AI and Cybersecurity (ISAICS)

ABSTRACT

This paper proposes a semi-quantum protocol for multi-item simultaneous ascending auctions, addressing limitations of existing quantum auctions that require complex resources and full quantum capabilities from bidders. Utilizing single-particle states and a trusted third party (HTP) for state management, our protocol allows resource-constrained bidders to participate using only simple operations. The HTP dynamically updates quantum sequences and announces leading bids iteratively until convergence. Simulations confirm practical feasibility with current technology and demonstrate security guarantees including anonymity, verifiability, and non-repudiation, providing a scalable solution for real-world auction environments.

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