Ephemeral Identifier Request Verification for Data Privacy Control

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Solution Overview

Problem

Existing technologies fail to provide users with transparent and efficient control over their data privacy across online platforms, leading to unauthorized access and misuse of sensitive information.

Innovation Solution

A data security system generates subscription tokens with encrypted user identifiers and attachment elements, allowing users to manage which entities can access and use their data, with features like interactive user interfaces and ephemeral identifiers to enhance privacy and security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional authentication tokens are used to verify requests, then request verification can be performed, but users cannot transparently control their data privacy across different platforms and entities may misuse sensitive information

Engineering Contradiction:
Improverequest verificationVSAvoiduser control over data privacy
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The authentication token is segmented into multiple components: a base token containing user identification and platform-specific tokens for each content platform. Each platform token can be independently managed, enabled, or disabled by the user, allowing granular control over which entities can access their data while maintaining request verification capability.

Inventive Principle:
Principle #1Segmentation

2Productivity

If user identification information is shared across platforms for personalized content, then content delivery can be optimized, but sensitive information may be exposed and misused by unauthorized parties

Engineering Contradiction:
Improvecontent delivery efficiencyVSAvoidinformation exposure
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system introduces an intermediary authentication token mechanism between the user and content platforms. The token acts as a mediator that enables personalized content delivery through platform-specific identifiers while preventing direct exposure of sensitive user information. The token can be selectively enabled or disabled for each platform, controlling information flow without compromising content delivery efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If comprehensive user data is collected across platforms for ad targeting, then advertising effectiveness can be improved, but computational resources increase and privacy security decreases

Engineering Contradiction:
Improvead targeting effectivenessVSAvoidcomputational resource consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The system extracts only the necessary platform-specific identification information into authentication tokens, separating it from comprehensive user data. This extraction allows ad targeting to function with minimal necessary information rather than requiring complete user data sets, reducing computational resource consumption while maintaining advertising effectiveness.

Inventive Principle:
Principle #2Taking out (Extraction)

4Reliability

If multiple authentication mechanisms are implemented across different platforms, then security can be enhanced, but system complexity increases and user management becomes difficult

Engineering Contradiction:
ImprovesecurityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The authentication token is designed as a universal multi-functional mechanism that works across multiple content platforms. A single token structure serves multiple purposes: verifying user identity, enabling platform-specific authentication, and providing user-controlled privacy management. This universal approach enhances security without increasing system complexity, as the same token mechanism operates across all platforms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4073976B1Cryptographically secure request verification
Publication Date: 2025.12.03 GOOGLE LLC
  • EP4073976B1 patent drawingFigure 1
  • EP4073976B1 patent drawingFigure 2
  • EP4073976B1 patent drawingFigure 3

AI summary

This disclosure relates to data security and cryptography. In one aspect, a method includes updating a user interface of a client device to present user interface controls that enable a user to specify data privacy settings that define how entities collect, store, and use data of the user. The data security system receives a request to modify a data privacy setting for one or more entities from the client device based on user interaction with one or more of the user interface controls. The request includes an ephemeral user identifier for the user and an attestation token. The data security system validates the request using at least the ephemeral user identifier and the attestation token. The data security system transmits data instructing the entity to modify usage of the user data based on the modified given data privacy setting to each of the one or more entities.