Proof-of-Forgery for Hash-based Signatures

Evgeniy Kiktenko; Evgeniy Kiktenko; Mikhail Kudinov; Mikhail Kudinov; Andrey Bulychev; Aleksey Fedorov; Aleksey Fedorov

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Paper

Proof-of-Forgery for Hash-based Signatures

Topics: Applied Cryptography; Formal Methods for Security

In Proceedings of the 18th International Conference on Security and Cryptography SECRYPT - Volume 1, 333-342, 2021

Authors: Evgeniy Kiktenko ^{1

;

2} ; Mikhail Kudinov ^{1

;

2} ; Andrey Bulychev ² and Aleksey Fedorov ^{1

;

2}

Affiliations: ¹ QApp, Skolkovo, Moscow 143025, Russia ; ² Russian Quantum Center, Skolkovo, Moscow 143025, Russia

Keyword(s): Hash-based Signatures, Lamport Signature, Winternitz Signature, Crypto-agility.

Abstract: In the present work, a peculiar property of hash-based signatures allowing detection of their forgery event is explored. This property relies on the fact that a successful forgery of a hash-based signature most likely results in a collision with respect to the employed hash function, while the demonstration of this collision could serve as convincing evidence of the forgery. Here we prove that with properly adjusted parameters Lamport and Winternitz one-time signatures schemes could exhibit a forgery detection availability property. This property is of significant importance in the framework of the crypto-agility paradigm since the considered forgery detection serves as an alarm that the employed cryptographic hash function becomes insecure to use and the corresponding scheme has to be replaced.

CC BY-NC-ND 4.0

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Paper citation in several formats:

Kiktenko, E.; Kudinov, M.; Bulychev, A. and Fedorov, A. (2021). Proof-of-Forgery for Hash-based Signatures. In Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-524-1; ISSN 2184-7711, SciTePress, pages 333-342. DOI: 10.5220/0010579603330342

@conference{secrypt21,
author={Evgeniy Kiktenko. and Mikhail Kudinov. and Andrey Bulychev. and Aleksey Fedorov.},
title={Proof-of-Forgery for Hash-based Signatures},
booktitle={Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT},
year={2021},
pages={333-342},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010579603330342},
isbn={978-989-758-524-1},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT
TI - Proof-of-Forgery for Hash-based Signatures
SN - 978-989-758-524-1
IS - 2184-7711
AU - Kiktenko, E.
AU - Kudinov, M.
AU - Bulychev, A.
AU - Fedorov, A.
PY - 2021
SP - 333
EP - 342
DO - 10.5220/0010579603330342
PB - SciTePress