Post-Quantum Multi-Party Computation

@article{Agarwal2020PostQuantumMC,
  title={Post-Quantum Multi-Party Computation},
  author={Amit Agarwal and James Bartusek and Vipul Goyal and Dakshita Khurana and Giulio Malavolta},
  journal={IACR Cryptol. ePrint Arch.},
  year={2020},
  volume={2020},
  pages={1395}
}
We initiate the study of multi-party computation for classical functionalities (in the plain model) with security against malicious polynomial-time quantum adversaries. We observe that existing techniques readily give a polynomial-round protocol, but our main result is a construction of *constant-round* post-quantum multi-party computation. We assume mildly super-polynomial quantum hardness of learning with errors (LWE), and polynomial quantum hardness of an LWE-based circular security… Expand
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