Secure post-quantum group key exchange: Implementing a solution based on Kyber

Escribano Pablos, Jose Ignacio; González Vasco, María Isabel

Publication:
Secure post-quantum group key exchange: Implementing a solution based on Kyber

dc.affiliation.dpto	UC3M. Departamento de Matemáticas	es
dc.contributor.author	Escribano Pablos, Jose Ignacio
dc.contributor.author	González Vasco, María Isabel
dc.contributor.funder	Ministerio de Economía y Competitividad (España)	es
dc.date.accessioned	2023-05-24T14:22:23Z
dc.date.available	2023-05-24T14:22:23Z
dc.date.issued	2023-04
dc.description.abstract	Quantum computing poses fascinating challenges for current cryptography, threatening the security of many schemes and protocols widely used today. To adapt to this reality, the U.S. National Institute for Standards and Technology (NIST) is currently running a standardization process in search of post-quantum (classical, yet resistant to quantum attacks) cryptographic tools, focusing on signature schemes and key encapsulation mechanisms. Many of the competing proposals also include designs for two-party key exchange, which can be combined in different ways to fit scenarios involving (Formula presented.) parties, that is, yielding group key exchange protocols. However, very few implementations of such group protocols are available to practitioners, which face a non-trivial challenge when deciding how to implement a protocol for establishing secure group sessions in this new post-quantum scenario. With this in mind, the authors report on the implementation of a secure post-quantum group key exchange protocol in the so-called Quantum Random Oracle Model. The protocol decided to implement is based on a KEM called Kyber, which is one of the finalists of the NIST competition. Not only this group construction is the only one available in the literature using a NIST finalist, but also, among all post-quantum designs the authors are aware of, it uses this strongest security model (as, e.g. in other proposals, the adversarial interaction with the hash functions of the system is assumed to be exclusively classical). Furthermore, experimental evidence is provided supporting this choice in terms of performance, even if the number of involved entities is large (up to 2000). All data and code are publicly available.	en
dc.description.sponsorship	Ministerio de Economía y Competitividad. Grant Number: PID2019-109379RB-100 NATO Science for Peace and Security Programme. Grant Number: G5448	en
dc.format.extent	16
dc.identifier.bibliographicCitation	Escribano Pablos, J. I., & González Vasco, M. I. (2023). Secure post‐quantum group key exchange: Implementing a solution based on Kyber. IET Communications, 17(6), 758-773.	en
dc.identifier.doi	https://doi.org/10.1049/cmu2.12561
dc.identifier.issn	1751-8628
dc.identifier.publicationfirstpage	758
dc.identifier.publicationissue	6
dc.identifier.publicationlastpage	773
dc.identifier.publicationtitle	IET Communications	en
dc.identifier.publicationvolume	17
dc.identifier.uri	https://hdl.handle.net/10016/37353
dc.identifier.uxxi	AR/0000032366
dc.language.iso	eng
dc.publisher	Wiley Open Access	en
dc.relation.projectID	Gobierno de España. PID2019-109379RB-100	es
dc.rights	© 2023 The Authors.	en
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 España	*
dc.rights.accessRights	open access	en
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/es/	*
dc.subject.eciencia	Electrónica	es
dc.subject.eciencia	Informática	es
dc.subject.eciencia	Matemáticas	es
dc.subject.eciencia	Telecomunicaciones	es
dc.subject.other	Authenticated group key exchange	en
dc.subject.other	Cryptographic protocols	en
dc.subject.other	Cryptography	en
dc.subject.other	Kyber	en
dc.subject.other	Post-quantum cryptography	en
dc.subject.other	Public key cryptography	en
dc.subject.other	System implementation	en
dc.title	Secure post-quantum group key exchange: Implementing a solution based on Kyber	en
dc.type	research article	*
dc.type.hasVersion	VoR	*
dspace.entity.type	Publication