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

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) 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.

Description

[0001] Related Application Cross Reference [0002] This application is related to U.S. Provisional Patent Applications No. 62 / 790,163, filed January 9, 2019, and U.S. Provisional Patent Applications No. 62 / 929,344, filed November 1, 2019, the disclosures of which are incorporated by reference in their entirety into this article. technical field [0003] The subject matter disclosed herein relates generally to methods, systems, and products for communicating PINs and other sensitive data, and in some specific embodiments or aspects, to methods, systems, and computer program products for securely sending PINs and other sensitive data. Background technique [0004] Credit and debit card payment transactions are processed by a large number of parties, including point-of-sale (POS) terminals, payment gateways, merchant banks, payment networks, and consumer banks. To reduce fraudulent transactions, payment ecosystems typically deploy Personal Identification Number (PIN)-based au...

AI Technical Summary

Problems solved by technology

This will incur significant costs, partly due to purchasing and maintaining these HSMs, and partly due to the burden of observing and managing PCI compliance

Additionally, HSMs become a performance bottleneck, as the maximum throughput of payment transactions for any party depends on the number of HSMs available to that party, which can create more problems during occasional traffic spikes, such as during holidays

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