Method, system, and computer program product for network bound proxy re-encryption and pin translation

US11488152B2 · kind B2 · utility

Assignee

• Visa International Service Association · US

Inventors

• Sivanarayana Gaddam · Santa Clara, US
• Gaven James Watson · Palo Alto, US
• Rohit Sinha · Bokaro, IN
• Atul Luykx · San Francisco, US

Key dates

• Filing date: Jan 9, 2020
• Grant date: Nov 1, 2022
• Expiry date: Jan 9, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2209/76
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A method, system, and computer program product generate, with a payment network, a first value (a) and a second value (ga), the second value (ga) generated based on the first value (a) and a generator value (g); generate, with the payment network, a plurality of random merchant numbers (mi) for a respective plurality of merchant banks; determine, with the payment network, a merchant product (M) based on a product of the plurality of random merchant numbers (mi); generate, with the payment network, a public key (pki) based on the second value (ga), the merchant product (M), and the random merchant number (mi) and a random key (rki) based on the merchant product (M) and the random merchant number (mi) for each respective merchant bank; and communicate, with the payment network, the public key (pki) and the random key (rki) to at least one respective merchant bank.