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:
Aug. 26, 2025
Filed:
Feb. 02, 2022
Visa International Service Association, San Francisco, CA (US);
Vinjith Nagaraja, Pflugerville, TX (US);
Minghua Xu, Austin, TX (US);
Jose Rios Trevino, Austin, TX (US);
Gaven Watson, Palo Alto, CA (US);
Pratyay Mukherjee, Sunnyvale, CA (US);
Yilei Chen, Palo Alto, CA (US);
Daniel Masny, Sunnyvale, CA (US);
Mihai Christodorescu, Belmont, CA (US);
Visa International Service Association, San Francisco, CA (US);
Abstract
Embodiments are directed to methods and systems for crypto-agile encryption and decryption. A computer system can possess a protocol file that identifies one or more cryptographic software modules. Using these cryptographic software modules, the computer system can generate a plurality of shared secrets and a session key, then use the session key to encrypt a message. The message can be sent to a server computer that can subsequently decrypt the message. At a later time, the protocol file can be updated to identify a different set of cryptographic software modules, which can be used to encrypt messages. Further, the server computer can transmit additional cryptographic software modules to the computer system, enabling the computer system to use those cryptographic software modules to generate cryptographic keys. As such, the cryptographic protocol file can be changed in response to changes in the cryptographic needs of the computer system.