Merkle-Baumintegritätsschutz für Zustandsbehaftete Hash-Basierte Kryptografie

Details

Veröffentlichungs-Nr.

EP4749984

Anmeldetag

3. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

H04L9/06, H04L9/32, H04L9/00

Abstract

A method for verifying integrity of a binary tree graph structure having an "h" number of layers and a plurality of nodes configured to provide a public key, including: verifying an integrity of a stored root hash value associated with a root node; obtaining a non-root node of the plurality of nodes, the "h" number of layers includes a leaf layer, and the leaf layer includes a plurality of leaf nodes associated with a plurality of one-time signing public keys; obtaining an authentication path associated with the non-root node, the authentication path including other nodes; performing a plurality of pairwise hash computations on the non-root node and other nodes to produce a candidate root hash value; comparing the candidate root hash value to the stored root hash value; and determining the integrity of the binary tree graph is verified when the candidate root value equals the stored root value.

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande