Paper 2021/1476

Multivariate public key cryptography with polynomial composition

Emile Hautefeuille
Abstract

This paper presents a new public key cryptography scheme using multivariate polynomials over a finite field. Each multivariate polynomial from the public key is obtained by secretly and repeatedly composing affine transformations with series of quadratic polynomials (in a single variable). The main drawback of this scheme is the length of the public key.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
Keywords
public-key cryptography multivariate cryptography
Contact author(s)
emile hautefeuille @ polytechnique edu
History
2022-06-09: last of 5 revisions
2021-11-06: received
See all versions
Short URL
https://ia.cr/2021/1476
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2021/1476,
      author = {Emile Hautefeuille},
      title = {Multivariate public key cryptography with polynomial composition},
      howpublished = {Cryptology {ePrint} Archive, Paper 2021/1476},
      year = {2021},
      url = {https://eprint.iacr.org/2021/1476}
}
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