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. 26, 2020
Filed:
Apr. 10, 2018
Visa International Service Association, San Francisco, CA (US);
Erick Wong, Menlo Park, CA (US);
Christian Flurscheim, Walnut Creek, CA (US);
Oleg Makhotin, Castro Valley, CA (US);
Eduardo Lopez, Menlo Park, CA (US);
Sanjeev Sharma, Sunnyvale, CA (US);
Christopher Jones, Greenbrae, CA (US);
Abhishek Guglani, San Mateo, CA (US);
Jarkko Oskari Sevanto, Singapore, SG;
Bharatkumar Patel, Singapore, SG;
Tai Lung Burnnet Or, Singapore, SG;
Christian Aabye, Morgan Hill, CA (US);
Hao Ngo, San Jose, CA (US);
John F. Sheets, San Francisco, CA (US);
Visa International Service Association, San Francisco, CA (US);
Abstract
Techniques for enhancing the security of a communication device when conducting a transaction using the communication device may include receiving a cryptogram generation key replenishment request that includes transaction log information derived from transaction data stored in a transaction log on a communication device, verifying that the transaction log information in the replenishment request is consistent with the previously received transaction information, and providing a new cryptogram generation key to the communication device in response to verifying the transaction log information in the replenishment request.