Cryptography based fraud tracking

US10642987B2 · kind B2 · utility

Assignee

• eBay Inc. · US

Inventors

• Michael Chan · Cupertino, US
• Nikhil Firke · San Ramon, US
• Todd Ryan Palmer · Livermore, US
• Brian Peter Dickson · San Jose, US
• Julien Soriano · San Jose, US
• Ralph Forsythe · Denver, US

Key dates

• Filing date: Jan 19, 2017
• Grant date: May 5, 2020
• Expiry date: Jun 9, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2221/2107
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A cryptographic tracking engine is disclosed that can track a user's data over the Internet in a way that allows the user to maintain control over the data downstream while maintaining the security of the stored data. An online entity provides an identifier that is encrypted using a first mechanism. Further, the user provides a data item for an electronic communication between two users. The data item is encrypted using the first mechanism. The data encrypted using the first mechanism is stored in a cryptographic entry. Other data for the electronic communication between the a first and second user is encrypted using a second encryption mechanism, such as a block cipher. The user can then selectively expose data stored in the cryptographic entry on a block-by-block basis to track exchanges of data over the Internet.