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:
May. 20, 2025
Filed:
Aug. 24, 2021
Robert Bosch Gmbh, Stuttgart, DE;
Sekar Kulandaivel, Silver Spring, MD (US);
Jorge Guajardo Merchan, Pittsburgh, PA (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A system and method is disclosed for generating a pseudo-random number to prevent unauthorized access to an application-layer communication protocol (e.g., Unified Diagnostic Service protocol) within a vehicle. A first controller within the vehicle may be selected as a security server (e.g., SecurityAccess server). A second controller may be selected that may be in operable communication with the first controller over a shared bus network (e.g., Communication Area Network). A response time-based, voltage-based, or random walk-based algorithm may be employed to generate a pseudo-random number. It is contemplated the pseudo-random number may be generated as a challenge when access is being requested through the application-layer communication protocol.