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. 05, 2021
Filed:
Mar. 20, 2018
International Business Machines Corporation, Armonk, NY (US);
Jason K. Resch, Chicago, IL (US);
Hugo M. Krawczyk, Tarrytown, NY (US);
Martin Schmatz, Rueschlikon, CH;
Mark D. Seaborn, Algonquin, IL (US);
Patricia Sagmeister, Adliswil, CH;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A computing device includes an interface configured to interface and communicate with a communication system, a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory that is configured to execute the operational instructions to perform various operations. The computing device processes an input value (e.g., associated with a key) based on a blinding key (e.g., homomorphic encryption) to generate a blinded value and generates an Oblivious Key Access Request (OKAR). The computing device transmits the OKAR to another computing device (e.g., associated with a Key Management System (KMS) service) and receives a blinded key therefrom that is based on a Partially-Oblivious Pseudorandom Function (P-OPRF). The computing device processes the blinded key based on the blinding key (e.g., homomorphic decryption) to generate the key (e.g., associated with the input value). In some examples, the computing device accesses secure information based on the key.