Paper 2025/1615 Original: eprint.iacr.org/2025/1615 ↗

The Chaotic Entropic Expansion (CEE): A Transparent Post-Quantum Data Confidentiality Primitive via Entropic Chaotic Maps

MINKA MI NGUIDJOI Thierry Emmanuel
Abstract

Weintroduce the Chaotic Entropic Expansion (CEE), a new one-way function based on iterated polynomial maps over finite fields. For polynomials f in a carefully defined class Fd, we prove that N iterations preserve min-entropy of at least log2q − N log2d bits and achieve statistical distance ≤ (q − 1)(dN − 1)/(2√q) from uniform. We formalize security through the Affine Iterated Inversion Problem (AIIP) and provide reductions to the hardness of solving multivariate quadratic equations (MQ) and computing discrete logarithms (DLP). Against quantum adversaries, CEE achieves O(2λ/2) security for λ-bit classical security. We provide comprehensive cryptanalysis and parameter recommendations for practical deployment. While slower than AES, CEE’s algebraic structure enables unique applications in verifiable computation and post-quantum cryptography within the CASH framework.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint.
History
2025-09-08: last updated
2025-09-08: published
Short URL
https://ia.cr/2025/1615
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2025/1615,
      author = {MINKA MI NGUIDJOI Thierry Emmanuel},
      title = {The Chaotic Entropic Expansion (CEE): A Transparent Post-Quantum Data Confidentiality Primitive via Entropic Chaotic Maps},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/1615},
      year = {2025},
      url = {https://eprint.iacr.org/2025/1615}
}
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