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:
Jan. 01, 2019
Filed:
Nov. 17, 2015
International Business Machines Corporation, Armonk, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
The present disclosure relates to a cryptographic method for enabling access by a user device to services provided by a server in a set of reference areas. The method comprises at the user device: obtaining a set of reference credentials of the server certifying data indicating the reference areas; obtaining a location credential certifying location data indicating the current location of the user device; generating an authentication token comprising a cryptographic proof for proving that the current location of the user device certified by the location credential matches at least one reference area certified by the set of reference credentials; sending the authentication token to the server for accessing the services by the user device in the at least one reference area.