Lattice-based extended withdrawable signatures

Ramses Fernandez

Paper 2025/530

Lattice-based extended withdrawable signatures

Ramses Fernandez

, Fairgate Labs

Abstract

This article presents an extension of the work performed by Liu, Baek and Susilo on extended withdrawable signatures to lattice-based constructions. We introduce a general construction, and provide security proofs for this proposal. As instantiations, we provide concrete construction for extended withdrawable signature schemes based on Dilithium and HAETAE.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
Keywords: Withdrawability Digital signatures Fiat-Shamir with aborts MLWE Post-quantum cryptography
Contact author(s): ramses fernandez @ fairgate io
History: 2025-03-23: approved; 2025-03-21: received; See all versions
Short URL: https://ia.cr/2025/530
License: CC BY

BibTeX

@misc{cryptoeprint:2025/530,
      author = {Ramses Fernandez},
      title = {Lattice-based extended withdrawable signatures},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/530},
      year = {2025},
      url = {https://eprint.iacr.org/2025/530}
}