Paper 2023/167

Modular Design of KEM-Based Authenticated Key Exchange

Colin Boyd, NTNU – Norwegian University of Science and Technology, Trondheim, Norway
Bor de Kock, NTNU – Norwegian University of Science and Technology, Trondheim, Norway
Lise Millerjord, NTNU – Norwegian University of Science and Technology, Trondheim, Norway
Abstract

A key encapsulation mechanism (KEM) is a basic building block for key exchange which must be combined with long-term keys in order to achieve authenticated key exchange (AKE). Although several KEM-based AKE protocols have been proposed, KEM-based modular building blocks are not available. We provide a KEM-based authenticator and a KEM-based protocol in the Authenticated Links model (AM), in the terminology of Canetti and Krawczyk (2001). Using these building blocks we achieve a set of generic AKE protocols. By instantiating these with post-quantum secure primitives we are able to propose several new post-quantum secure AKE protocols.

Note: Some small changes based on reviewers' comments.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Published elsewhere. ACISP 2023
Keywords
KEMKey Exchangepost-quantumAKEAMUM
Contact author(s)
colin boyd @ ntnu no
bor dekock @ ntnu no
lise millerjord @ ntnu no
History
2023-04-22: revised
2023-02-10: received
See all versions
Short URL
https://ia.cr/2023/167
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2023/167,
      author = {Colin Boyd and Bor de Kock and Lise Millerjord},
      title = {Modular Design of {KEM}-Based Authenticated Key Exchange},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/167},
      year = {2023},
      url = {https://eprint.iacr.org/2023/167}
}
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