Paper 2025/1332
Technical Note: LeanSig for Post-Quantum Ethereum
, Ethereum Foundation, Eindhoven University of Technology, Ethereum FoundationAbstract
In this note, we present a new instantiation of the hash-based multi-signature framework introduced by Drake, Khovratovich, Kudinov, and Wagner (CiC Vol 2 Issue 1, eprint 2025/055) for Ethereum’s consensus layer. Inspired by a recent work of Khovratovich, Kudinov, and Wagner (Crypto 2025, eprint 2025/889), we instantiate the framework with a novel incomparable encoding that improves the tradeoff between signature size and verification hashing. The purpose of this document is to make explicit how to use the ideas of the latter work within the framework of Drake, Khovratovich, Kudinov, and Wagner.
Metadata
- Available format(s)
-
PDF
- Publication info
- Preprint.
- Keywords
- Post-QuantumEthereumHypercubesHash-BasedTweakable HashPoseidon
- Contact author(s)
-
justin drake @ ethereum org
dmitry khovratovich @ ethereum org
mishel kudinov @ gmail com
benedikt wagner @ ethereum org - History
- 2025-09-12: revised
- 2025-07-21: received
- See all versions
- Short URL
- https://ia.cr/2025/1332
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2025/1332,
author = {Justin Drake and Dmitry Khovratovich and Mikhail Kudinov and Benedikt Wagner},
title = {Technical Note: {LeanSig} for Post-Quantum Ethereum},
howpublished = {Cryptology {ePrint} Archive, Paper 2025/1332},
year = {2025},
url = {https://eprint.iacr.org/2025/1332}
}
