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:
Mar. 10, 2026
Filed:
Sep. 21, 2022
International Business Machines Corporation, Armonk, NY (US);
Gero Dittmann, Zürich, CH;
Angelo De Caro, Zürich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A disclosed technique enables a tree of transactions between entities which may be a first entity and a second entity. The technique may be implemented at a transaction recipient, which can be one of the entities or an external actor, such as a certifier. The transaction recipient accesses two transactions, including a first and second transaction, and two respective secrets, including a first and second secret. The first transaction originates from the first entity, while the second transaction originates from the second entity. The first and second transaction are obfuscated based on the first secret and the second secret, respectively. The first transaction is logically connected to the second transaction. The transaction recipient further de-obfuscates the two transactions using the two respective secrets, and cryptographically signs at least a part of the second transaction to obtain a signature, prior to allowing the second entity to access the obtained signature.