Withdrawable signatures in Fiat-Shamir with aborts constructions: Paper
Ramses Fernandez from Fairgate Labs presents a new extension of withdrawable signatures within the Fiat-Shamir with aborts paradigm. The paper introduces an abstract construction, security proofs, and a concrete scheme based on Dilithium.
fairgate.io/publications
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Withdrawable signatures in Fiat-Shamir with aborts constructions
This paper explores withdrawable signatures, a novel cryptographic mechanism that allows signers to revoke signatures efficiently without exposing private keys or affecting other valid signatures. This capability has significant implications for:
· Smart contracts – Enabling flexible commitments in multi-party agreements.
· Decentralized voting – Allowing voters to adjust their decisions before final tabulation.
· Escrow & multi-party transactions – Providing a secure way to manage disputes.