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On Known APNs

Published: January 16, 2026 | arXiv ID: 2601.11247v1

By: Valérie Gillot ad Philippe Langevin

Potential Business Impact:

Finds fewer ways to make secret codes.

Business Areas:
NFC Hardware

We present new invariants, APN-extendibility criterion and a backtracking approach to identify several numerical facts supporting the conjecture that the set of 6-bit \APN functions is limited to 14 CCZ-classes.

Page Count
10 pages

Category
Computer Science:
Discrete Mathematics