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Paper 2019/098
A Post-Quantum UC-Commitment Scheme in the Global Random Oracle Model from Code-Based Assumptions
Pedro Branco
Abstract
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.
Metadata
- Available format(s)
- Category
- Cryptographic protocols
- Publication info
- Preprint. MINOR revision.
- Keywords
- Commitment SchemeUniversal Composability
- Contact author(s)
- pmbranco @ math tecnico ulisboa pt
- History
- 2019-02-14: revised
- 2019-01-31: received
- See all versions
- Short URL
- https://ia.cr/2019/098
- License
-
CC BY