A Post-Quantum UC-Commitment Scheme in the Global Random Oracle Model from Code-Based Assumptions

In this work, we propose the first post-quantum UC-commitment scheme in the Global Random Oracle Model, where only one non-programmable random oracle is available. The security of our proposal is based on two well-established post-quantum hardness assumptions from coding theory: The Syndrome Decoding and the Goppa Distinguisher. We prove that our proposal is perfectly hiding and computationally binding. The scheme is secure against static malicious adversaries.

Citation

Branco, Pedro. "A post-quantum UC-commitment scheme in the global random oracle model from code-based assumptions." Cryptology ePrint Archive (2019).

Authors from IE Research Datalab