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:
Apr. 19, 2023
International Business Machines Corporation, Armonk, NY (US);
Krishnan Sugavanam, Mahopac, NY (US);
Aris Gkoulalas-Divanis, Waltham, MA (US);
Sophie Batchelder, Cambridge, MA (US);
Uri Kartoun, Cambridge, MA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
According to one embodiment, a method, computer system, and computer program product for user authentication. The embodiment may include receiving, at an authentication server, respective multiple location coordinates from first and second registered devices. Storing, on the authentication server, respective moving windows comprising registered, device specific, last n location coordinates from the first and the second registered devices. Receiving a request to access the authentication server via the first registered device. The request comprises log-in credentials of a user and a first hash value calculated at the first registered device. Computing, at the authentication server, a second hash value using a set of the last n location coordinates from each of the respective moving windows. Comparing the first hash value and the second hash value. In response to the first and the second hash values being equal, and the log-in credentials being verified, granting access to the authentication server.