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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. MINOR revision.
Keywords
public-key cryptographymultivariate 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
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