Linear Self-Symmetries of Inverse-Based S-boxes: Generic Rigidity and Applications

Reported by arXiv cs.CR (Zheng Zhang, Na Zhang)

Summary by Cyber Security News22 Oct 2026, 06:00 CET

About this summary. This is a short excerpt from the description that arXiv cs.CR published with its article. Cyber Security News did not report or verify the underlying story. Read the original: https://arxiv.org/abs/2610.29837

arXiv:2610.29837v1 Announce Type: new Abstract: Finite-field inversion is a basic nonlinear building block in the design of S-boxes for symmetric cryptography. In inverse-based S-boxes, finite-field inversion is often combined with linear or affine layers that may preserve or destroy algebraic symmetries of the inverse function. We study how often nontrivial linear self-symmetries remain as the outer invertible linear transformation varies over \(GL_n(\mathbb F_2)\).

Read the full article at arXiv cs.CR →

Source attribution: headline and facts are from arXiv cs.CR (arxiv.org). Summary method: excerpt of the source description. See our source attribution policy.

Related coverage

TLS Flaws Found in GoAhead Web Server Used in Hundreds of Millions of Devices

NIST starts the countdown to retire quantum-vulnerable encryption

They Will See Johnny's Message: A Measurement Study of Post-Quantum Cryptography Across Email Delivery Paths

Beyond LWE: Post-Quantum Assumptions under a Counterfactual Break of the Dihedral Coset Problem

Hiding Capabilities in AI Models

OpenAI Compaction Flaw Let Researchers Bypass Hidden Reasoning Protections