Paper 2026/2377 Original: eprint.iacr.org/2026/2377 ↗

MIKE: a fast and compact post-quantum NIKE

Andrea Basso
Pierrick Dartois
Max Duparc
Jonathan Komada Eriksen
Sabrina Kunzweiler
Michael Meyer
Giacomo Pope
Krijn Reijnders
Damien Robert
Ryan Rueger
Sina Schaeffler
Abstract

We introduce MIKE (Module Isogeny Key Exchange), a post-quantum NIKE (Non Interactive Key Exchange) whose security relies on the CDH problem for the rank-$2$ Hermitian module action on supersingular elliptic curves. For NIST level~$1$, MIKE has very compact public keys of 80B, and using our constant time C implementation, the key generation takes 0.65ms and the shared secret takes 4.9ms (including key validation) on a AMD CPU at 3.3GHz.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2026-10-06: last updated
2026-10-06: published
Short URL
https://ia.cr/2026/2377
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2026/2377,
      author = {Andrea Basso and Pierrick Dartois and Max Duparc and Jonathan Komada Eriksen and Sabrina Kunzweiler and Michael Meyer and Giacomo Pope and Krijn Reijnders and Damien Robert and Ryan Rueger and Sina Schaeffler},
      title = {MIKE: a fast and compact post-quantum NIKE},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/2377},
      year = {2026},
      url = {https://eprint.iacr.org/2026/2377}
}
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