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:
Dec. 16, 2021
Sicpa Holding SA, Prilly, CH;
Oscar De Feo, Lausanne, CH;
Lorenzo Sirigu, Lausanne, CH;
SICPA HOLDING SA, Prilly, CH;
Abstract
The invention relates to a method and corresponding system for controlling, via secured transfers of tokens, operations of a plurality of interconnected devices having each a hardware trusted execution environment (TEE) and a controller, wherein each controller owns tokens attributed by a supervisor server and the TEE of each device is adapted to respond to a validation challenge via a zero-knowledge proof (ZKP) protocol, and generate and validate a single use ownership digital signature and its corresponding ownership signature validation challenge. The tokens can be transferred from one interconnected device to another in an online manner via a server or an offline manner via direct communication between the devices.