Payment Card URL Authentication for Scalable Fraud Protection

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Solution Overview

Problem

Existing authentication solutions for payment cards lack flexibility and scalability, failing to adequately address fraud and security issues as the number of cards increases.

Innovation Solution

Implement URL-based authentication using static and dynamic URLs assigned to or generated by payment cards, which are authenticated by a server using a unique card identifier and private key, ensuring secure access to account-related operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional authentication solutions are used for payment cards, then the authentication process is simple, but the system lacks flexibility and scalability to address fraud and security issues as the number of cards increases

Engineering Contradiction:
Improveflexibility and scalabilityVSAvoidauthentication process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a server as an intermediary component that handles authentication requests. The server receives URLs from client devices, extracts card identifiers, compares them against expected values stored in a database, and returns authentication results. This intermediary architecture allows the system to scale efficiently without requiring complex client-side processing, resolving the contradiction between adaptability and complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The authentication process is segmented into distinct functional components: URL generation by the card, URL transmission to the client device, request transmission to the server, card identifier extraction by the server, comparison against expected values, and authentication decision. This segmentation allows each component to be optimized independently, improving overall system flexibility while maintaining manageable complexity.

Inventive Principle:
Principle #1Segmentation

2Reliability

If complex URLs with card identifiers are used for authentication, then security against fraud is improved, but the difficulty of detecting and measuring authentication requests increases

Engineering Contradiction:
Improvesecurity against fraudVSAvoidauthentication request detection
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The server extracts the card identifier from the URL parameter and uses it for authentication comparison. By isolating the critical authentication data (the card identifier) from the rest of the URL structure, the system maintains security through complex URLs while simplifying the detection and measurement process to a straightforward string comparison operation.

Inventive Principle:
Principle #2Taking out (Extraction)

3Quantity of substance

If more payment cards are issued to increase customer coverage, then the number of authenticated cards increases, but the security problems and fraud detection difficulty are exacerbated

Engineering Contradiction:
Improvenumber of payment cardsVSAvoidfraud and malicious activity
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

Instead of storing sensitive card data directly in the database, the system stores only the expected card identifiers associated with URLs. When authentication is needed, the server extracts the card identifier from the URL and compares it against the stored expected value. This copying approach allows the system to handle millions of cards securely without storing sensitive information, thereby increasing the number of authenticated cards while maintaining security.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS20250373607A1URL-based authentication for payment cards
Publication Date: 2025.12.04 CAPITAL ONE SERVICES LLC
  • US20250373607A1 patent drawing
  • US20250373607A1 patent drawing
  • US20250373607A1 patent drawing

AI summary

Systems, methods, articles of manufacture for authentication of payment cards. A server may assign, in a database, an expected card identifier to a contactless card, the contactless card associated with an account. The server may receive, from a client device, a request comprising a uniform resource locator (URL), a parameter of the URL comprising a card identifier, wherein the URL is transmitted by the contactless card to the client device. The server may extract the card identifier from the URL and compare the extracted card identifier to the expected card identifier in the database. The server may determine, based on the comparison, that the extracted card identifier matches the expected card identifier. The server may authenticate the request based on the extracted card identifier matching the expected card identifier, and transmit, to the client device, an indication specifying that the request was authenticated.