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. 22, 2026
Filed:
Nov. 25, 2022
Sandvik Mining and Construction Oy, Tampere, FI;
Henry Haverinen, Tampere, FI;
Eero Paajanen, Tampere, FI;
Jere Paavola, Tampere, FI;
Jarkko Holappa, Tampere, FI;
Johannes Koskinen, Tampere, FI;
Sandvik Mining and Construction Oy, Tampere, FI;
Abstract
Devices, methods and computer programs for user authentication in an industrial system are disclosed. A first apparatus associated with an industrial system receives a user identifier uniquely associated with a user. The first apparatus derives a second symmetric cryptographic key specific at least to the user based at least on the received user identifier and a first symmetric cryptographic key specific to the industrial system and stored in a first storage in the first apparatus. The first apparatus attempts to authenticate the user based at least on the derived second symmetric cryptographic key. In response to successfully authenticating the user, the first apparatus grants the user access to the industrial system.