Non-malleable Commitments Against Quantum Attacks

Nir Bitansky; Huijia Lin; Omri Shmueli

doi:10.1007/978-3-031-07082-2_19

Non-malleable Commitments Against Quantum Attacks

Nir Bitansky, Huijia Lin, Omri Shmueli

Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We construct, under standard hardness assumptions, the first non-malleable commitments secure against quantum attacks. Our commitments are statistically binding and satisfy the standard notion of non-malleability with respect to commitment. We obtain a log ^⋆(λ) -round classical protocol, assuming the existence of post-quantum one-way functions. Previously, non-malleable commitments with quantum security were only known against a restricted class of adversaries known as synchronizing adversaries. At the heart of our results is a new general technique that allows to modularly obtain non-malleable commitments from any extractable commitment protocol, obliviously of the underlying extraction strategy (black-box or non-black-box) or round complexity. The transformation may also be of interest in the classical setting.

Original language	English (US)
Title of host publication	Advances in Cryptology – EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, 2022, Proceedings
Editors	Orr Dunkelman, Stefan Dziembowski
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	519-550
Number of pages	32
ISBN (Print)	9783031070815
DOIs	https://doi.org/10.1007/978-3-031-07082-2_19
State	Published - 2022
Event	41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, EUROCRYPT 2022 - Trondheim, Norway Duration: May 30 2022 → Jun 3 2022

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	13277 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, EUROCRYPT 2022
Country/Territory	Norway
City	Trondheim
Period	5/30/22 → 6/3/22

ASJC Scopus subject areas

Theoretical Computer Science
General Computer Science

Access to Document

10.1007/978-3-031-07082-2_19

Cite this

Bitansky, N., Lin, H., & Shmueli, O. (2022). Non-malleable Commitments Against Quantum Attacks. In O. Dunkelman, & S. Dziembowski (Eds.), Advances in Cryptology – EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, 2022, Proceedings (pp. 519-550). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 13277 LNCS). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-031-07082-2_19

Non-malleable Commitments Against Quantum Attacks. / Bitansky, Nir; Lin, Huijia; Shmueli, Omri.
Advances in Cryptology – EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, 2022, Proceedings. ed. / Orr Dunkelman; Stefan Dziembowski. Springer Science and Business Media Deutschland GmbH, 2022. p. 519-550 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 13277 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Bitansky, N, Lin, H & Shmueli, O 2022, Non-malleable Commitments Against Quantum Attacks. in O Dunkelman & S Dziembowski (eds), Advances in Cryptology – EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, 2022, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 13277 LNCS, Springer Science and Business Media Deutschland GmbH, pp. 519-550, 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, EUROCRYPT 2022, Trondheim, Norway, 5/30/22. https://doi.org/10.1007/978-3-031-07082-2_19

Bitansky N, Lin H, Shmueli O. Non-malleable Commitments Against Quantum Attacks. In Dunkelman O, Dziembowski S, editors, Advances in Cryptology – EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, 2022, Proceedings. Springer Science and Business Media Deutschland GmbH. 2022. p. 519-550. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). doi: 10.1007/978-3-031-07082-2_19

Bitansky, Nir ; Lin, Huijia ; Shmueli, Omri. / Non-malleable Commitments Against Quantum Attacks. Advances in Cryptology – EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, 2022, Proceedings. editor / Orr Dunkelman ; Stefan Dziembowski. Springer Science and Business Media Deutschland GmbH, 2022. pp. 519-550 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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Non-malleable Commitments Against Quantum Attacks

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