User Data Sharing Architecture for Decentralized Access Rights

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Solution Overview

Problem

Existing data sharing systems lack user control and compliance with GDPR, leading to vulnerabilities and lack of business-agnostic data sharing, with users having limited ability to manage access rights and maintain ownership of their sensitive information.

Innovation Solution

A data sharing system with two interconnected entities, one storing user-specific data and the other access rights, allowing users to authenticate and modify access rights through a user interface, with cryptographic accumulators and zero knowledge proofs ensuring privacy and compliance, and a blockchain for auditability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If user-specific data is stored in a centralized system, then data access and sharing is simplified, but security vulnerabilities and single point of failure risks increase

Engineering Contradiction:
Improvedata accessVSAvoidsystem security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system segments data storage and access control into separate decentralized components. Data is distributed across multiple nodes rather than centralized, eliminating the single point of failure while maintaining accessibility through the distributed network architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Smart contracts act as intermediaries between data storage and access requests. These self-executing contracts enforce access policies automatically, reducing security vulnerabilities associated with centralized access control while maintaining ease of data sharing.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If vendor-specific data structures are used, then data storage is simplified, but business-agnostic data sharing capability is reduced

Engineering Contradiction:
Improvedata storageVSAvoiddata sharing compatibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The system implements universal data structures that can represent multiple vendor-specific formats. This allows the decentralized storage system to handle diverse data types from different sources while maintaining business-agnostic interoperability across various entities.

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

Solution Approach 2:

The system transforms vendor-specific data parameters into a standardized decentralized format. By changing the representation parameters of stored data, the system enables seamless sharing across different business contexts while preserving the original data characteristics.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If access rights are managed centrally, then access control is simplified, but user control and ownership capability is reduced

Engineering Contradiction:
Improveaccess controlVSAvoiduser control
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

Users directly manage their own access rights through the decentralized system. Smart contracts enable users to autonomously grant, revoke, and control access permissions without centralized intervention, enhancing user ownership while maintaining simplified access control through automated enforcement.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Access rights and permissions are predetermined and encoded in smart contracts before data sharing occurs. This preliminary configuration of access control rules enables automated enforcement while giving users full control over their data sharing preferences in advance.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12493714B2Method, computer program and data sharing system for sharing user-specific data of a user
Publication Date: 2025.12.09 SONY GROUP CORP
  • US12493714B2 patent drawing
  • US12493714B2 patent drawing
  • US12493714B2 patent drawing

AI summary

A data sharing system comprising a first data processing circuitry configured to store the user-specific data of a user. The data sharing system comprises at least one second data processing circuitry configured to store access rights of an external entity to access the user-specific data stored on the first data processing circuitry. The data sharing system comprises an interface between the first data processing circuitry and the second data processing circuitry configured to communicate the access rights from the second data processing circuitry to the first data processing circuitry. The data sharing system also comprises a user interface configured to authenticate the user to the second data processing circuitry for modifying access rights. Additionally, the data sharing system comprises an interface between the first data processing circuitry and the external entity configured to communicate a portion of the user-specific data to the external entity in accordance with the access rights.