A Compact Post-quantum Strong Designated Verifier Signature Scheme from Isogenies

Farzin Renan; Wendi Gao; Jason T. LeGrow

Paper 2025/1335

A Compact Post-quantum Strong Designated Verifier Signature Scheme from Isogenies

Farzin Renan

Wendi Gao, Virginia Polytechnic Institute and State University

Jason T. LeGrow, Virginia Polytechnic Institute and State University

Abstract

Strong designated verifier signatures are a variant of digital signatures in which only one party—the designated verifier—is able to verify the authenticity of a signature. We propose a new strong designated verifier signature scheme based on (abelian) cryptographic group actions.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
Keywords: Post-quantum cryptography Isogeny-based cryptography Strong designated verifier signatures
Contact author(s): farzin renan @ gmail com
wendig @ vt edu
jlegrow @ vt edu
History: 2026-09-10: last of 2 revisions; 2025-07-22: received; See all versions
Short URL: https://ia.cr/2025/1335
License: CC BY

BibTeX

@misc{cryptoeprint:2025/1335,
      author = {Farzin Renan and Wendi Gao and Jason T. LeGrow},
      title = {A Compact Post-quantum Strong Designated Verifier Signature Scheme from Isogenies},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/1335},
      year = {2025},
      url = {https://eprint.iacr.org/2025/1335}
}