Secure Multi-Party Computation Based on Blind Quantum Computing
Abstract
Abstract Blind Quantum Computing (BQC) is a protocol proposed in recent years to tackle the practical need where users want to perform quantum computing tasks but lack the necessary capabilities, and thus delegate the work to quantum computing platforms while keeping their data secure throughout the process. Besides, its characteristics provide new ways for secure multi-party computation, helping multiple untrusted users to compute together securely. Most existing secure multi-party computation protocol based on blind quantum computing rely on DT(G) states to perform joint computation. However, this can lead to security risks because one client has too much authority, and these schemes also lack generality. In this paper, a secure multi-party computation protocol is proposed based on brickwork states. By exploiting and optimizing the properties of these states, the security issues in joint client computation are solved and centralized authority is avoided. Meanwhile, it reflects the interactive mode in multi-party computation. The proposed protocol effectively improves the generality of computation.
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