A2A Transaction Network Using Issuer Consent for Secure Settlement
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Solution Overview
Problem
Existing A2A transaction networks face challenges in eliminating the need for physical payment devices, managing multiple communication channels, and reducing fraudulent and disputed transactions, while ensuring security and efficiency.
Innovation Solution
A computer-implemented method and system for an A2A transaction network that includes receiving a transaction request, determining an issuer URL, generating an intent identifier, and transmitting it to an issuer system for authenticated consent, followed by settlement between merchant and issuer accounts, with confirmation messages and settlement reports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional card-based payment systems are used, then payment transactions can be processed, but physical payment devices and stored payment data are required which creates security risks and system complexity
Solution Approach 1:
The patent extracts the payment device and stored payment data from the system by implementing account-to-account transfers. Instead of requiring physical cards or stored card data, the system uses direct bank account identifiers and implements authentication through the issuing bank's verification of account ownership, thereby eliminating the security vulnerabilities associated with stored payment data while maintaining transaction processing capability
Solution Approach 2:
The patent introduces an intermediary authentication mechanism where the issuing bank verifies account ownership and generates authentication tokens. This intermediary verification layer replaces the need for physical payment devices and stored data, allowing secure transactions through digital account verification without requiring complex integration of multiple payment device systems
2Adaptability or versatility
If multiple A2A providers with multiple communication channels are integrated, then more transaction channels are available, but system integration complexity and maintenance burden increase
Solution Approach 1:
The patent implements a universal A2A transaction framework that can handle multiple transaction types (P2P, P2M, M2P, M2M) through a single standardized communication protocol. The system uses a unified message format and authentication mechanism that works across different transaction scenarios, eliminating the need for separate integration with multiple A2A providers while maintaining versatility in transaction channel options
3Reliability
If secure authentication is implemented to reduce fraudulent transactions, then transaction security improves, but processing time and system resources are consumed
Solution Approach 1:
The patent implements preliminary authentication where the issuing bank verifies account ownership and generates authentication tokens before the actual transaction occurs. This preliminary verification step establishes security credentials in advance, allowing the main transaction processing to proceed more quickly without requiring repeated authentication checks, thereby reducing overall processing time while maintaining strong fraud protection
Data Source
AI summary
Provided are a system, method, and computer program product for an account-to-account transaction network. The method includes receiving, via a first application programming interface (API), a transaction request for a transaction including a transaction amount, an issuer identifier, and a merchant identifier. The method includes determining an issuer uniform resource locator (URL) based on the issuer identifier, generating an intent identifier associated with the transaction request, and transmitting the issuer URL and the intent identifier via the first API. The method includes transmitting the intent identifier, the transaction amount, and the merchant identifier to an issuer system associated with the issuer identifier via a second API. The method includes, in response to receiving an authenticated consent identifier from the issuer system, determining a merchant account identifier and an issuer account identifier, and transmitting a combined authorization and settlement message to cause settlement for the transaction amount.