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. 17, 2026
Filed:
Sep. 16, 2022
Visa International Service Association, San Francisco, CA (US);
Pratyay Mukherjee, Sunnyvale, CA (US);
Pratik Sarkar, San Francisco, CA (US);
Sikhar Patranabis, San Francisco, CA (US);
Srinivasan Raghuraman, Cambridge, MA (US);
Daniel Masny, Sunnyvale, CA (US);
Saikrishna Badrinarayanan, Fremont, CA (US);
Visa International Service Association, San Francisco, CA (US);
Abstract
Conducting secure transfers between computing devices can pose a challenge. Therefore, an oblivious transfer can be used to conduct a secure transfer. The oblivious transfer (OT) is an interactive protocol between two parties: a sender computing device and a receiver computing device. An OT protocol involves the sender computing device holding two messages mand m, and the receiver computing device holding a bit b? {0, 1}. At the end of the protocol, the receiver computing device should only learn the message mb and nothing about the other message m?b, while the sender computing device should learn nothing about the bit b. With the steady progress in quantum computing, several post-quantum oblivious transfer protocols can be derived.