The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Mar. 29, 2024
Nxp B.v., Eindhoven, NL;
Florian Boehl, Leuven, BE;
NXP B.V., Eindhoven, NL;
Abstract
A system and method of producing a key for a digital signature method, including: providing a plurality of initial hardware security modules (HSM) with global public key parameters; running key generation to produce sub-public keys for respective sub-trees associated with the plurality of initial HSMs based upon the global public key parameters; picking a random seed and generating a sub-public key and a sub-tree based upon the random seed for a plurality of virtual HSMs; sending the sub-public keys of the plurality of initial HSMs to a root HSM; computing an overall public key of a tree structure associated with the root HSM; distributing the sub-public keys for the initial HSMs to the plurality of initial HSMs; splitting the random seed of the virtual HSMs into a plurality of key shares; and providing custodians associated with the plurality of virtual HSMs a key share from the plurality of key shares.