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:
Sep. 16, 2025
Filed:
May. 26, 2023
Devvio, Inc., Albuquerque, NM (US);
Nicholas Williams, Albuquerque, NM (US);
Thomas G Anderson, Albuquerque, NM (US);
Devvio, Inc., Albuquerque, NM (US);
Abstract
Some embodiments of the present invention provide a method of cryptographically identifying and authenticating embedded devices through interaction with a distributed ledger. The device begins with a manufacturer root key and a globally unique identifier. It registers by signing a registration transaction that includes its identifier using its private root key with a digital signature algorithm and sending the resultant transaction to the distributed ledger. The ledger generates a registration root key and responds by sending this second root key back to the device. The device then uses the manufacturer root key and the registration root key to generate a child key that it uses to sign its response to the challenge proving that it possesses both the manufacturer key and the registration key. Thereafter, the device can non-interactively identify and authenticate itself to the distributed ledger by signing transactions with the derivative key.