Hybrid Quantum-Classical MPC for Heterogeneous Trust Models

Building on the quantum-classical integration frameworks outlined by Clark (2025), as well as the quantum homomorphic encryption-based MPC by Li et al. (2025), this idea aims to address environments (such as healthcare consortia or regulated industries) where some parties may have access to quantum infrastructure while others do not. Instead of requiring all parties to use quantum protocols—or none—this research would develop layered MPC protocols where quantum-secured links are used for the most sensitive or trust-critical data exchanges, while classical MPC is used elsewhere. For example, quantum key distribution could secure inter-organization communication, while classical MPC handles local computations. This “hybrid trust” model could better reflect real-world deployment, accelerating adoption of quantum-secured MPC in stages and accommodating parties with different capabilities and threat perceptions.

References:

1. Integrating Quantum Networks with AI Architectures: A Framework for Next-Gen Secure Healthcare Systems. Ethan Clark (2025). Frontier Robotics and Artificial intelligence Journal.
2. Secure multiparty computation for maximum and minimum values based on quantum homomorphic encryption.. Shuang Li, Xiao-Qiu Cai, Tianyin Wang (2025). Optics Express.