Post-Quantum Withdrawable Signatures
Arxiv
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2026-07-01T00:00:00
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Abstract
This article presents an extension of the work performed by Liu, Baek and Susilo [LBS23] on withdrawable signatures to the FiatShamir with aborts paradigm. We introduce an abstract construction, and provide security proofs for this proposal. As an instantiation, we provide a concrete withdrawable signature scheme based on a no-hint, full- t Dilithium-style FiatShamir-with-aborts construction [DLL[+] 18]; adapting to production ML-DSA (with hints) introduces a small $\epsilon_{zk}$ term.
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