Server-Side Device Fingerprints for Cookie-Free Consent Enforcement

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Solution Overview

Problem

Existing consent management systems for data privacy rely on device-side storage of cookies, which violate regulations like GDPR and lack flexibility, making them inflexible and vulnerable to security breaches.

Innovation Solution

Implement a server-side computing framework that uses device fingerprints, generated from unique device parameters, to track and enforce user consent for data sharing without requiring device-side storage, allowing for flexible consent management and enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If device-side storage of cookies is used to track user consent, then consent tracking is achieved, but it violates GDPR regulations and creates security vulnerabilities

Engineering Contradiction:

Improveconsent tracking reliabilityVSAvoidsecurity vulnerabilities

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces server-side storage as an intermediary mechanism to replace device-side cookie storage. The consent information is stored on the service provider's server rather than on the user's device, eliminating security vulnerabilities associated with device-side storage while maintaining the ability to track and enforce consent decisions across multiple interactions.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent inverts the traditional approach by moving consent tracking from the client device to the server. Instead of the device storing and managing consent cookies locally, the server assumes responsibility for storing and managing consent information, fundamentally changing where and how consent is tracked.

Inventive Principle:

Principle #13The other way round (Inversion)

2Adaptability or versatility

If device-side storage of cookies is used for consent management, then consent tracking is enabled, but the system becomes inflexible and requires device-side storage

Engineering Contradiction:

Improveconsent management flexibilityVSAvoiddevice-side storage requirement

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The server acts as an intermediary that centralizes consent management, eliminating the need for device-side storage logic. This allows the system to adapt to different devices and browsers without requiring complex device-side implementations, as all consent management operations are handled centrally on the server.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The server-side implementation provides a universal solution that works across all devices and browsers without requiring device-specific storage mechanisms. The single server-side system handles consent tracking for all users and devices, eliminating the need for each device to implement its own storage solution.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If conventional consent management systems are implemented, then data privacy protection is provided, but data sharing is restricted without consent

Engineering Contradiction:

Improvedata privacy protectionVSAvoiddata sharing flexibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system implements feedback mechanisms where user consent decisions are captured, stored on the server, and then used to control subsequent data sharing operations. The server continuously checks consent status before allowing data sharing, providing real-time feedback control that balances privacy protection with authorized data sharing.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The consent management system is made dynamic by allowing consent status to change over time based on user decisions. The server can update consent information in real-time, enabling flexible data sharing that adapts to current user preferences while maintaining privacy protection when consent is not granted.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250291950A1Computing framework for enforcement of data privacy consent through device fingerprints

Publication Date: 2025.09.18 PAYPAL INC

AI summary

There are provided systems and methods for a computing framework for enforcement of data privacy consent through device fingerprints. A service provider, including an electronic transaction processor, may provide consent management and enforcement through device fingerprints server-side in place of using device-side cookies or other data. When a device interacts with a service provider and provides or generates user data, the user of the device may opt-in to consenting to share or use that user data for targeted content and/or personalized services. The device may be fingerprinted using unique device parameters and a fingerprinting algorithm to generate a unique device identifier. User segments may then be built for the user based on the user data and to hide or obfuscate the user data. The device fingerprint may then be shared with the user segments so that when the device is further detected, targeted content and personalization may be provided.