Distributed Ledger Token Trading for Private Information Security

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Solution Overview

Problem

Existing methods for managing private information are vulnerable to leakage and unauthorized access due to centralized data storage, which can lead to hacking and information leaks, despite the use of encryption and authentication technologies.

Innovation Solution

A method for trading private information access rights using a distributed ledger system, where a distributed network of servers authenticates and manages tokens that represent access rights, allowing services to be provided without direct transmission of private data, and includes features like token expiration and validation to prevent misuse.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If private information is stored in centralized databases for service provision, then service accessibility is improved, but security against hacking and information leakage deteriorates

Engineering Contradiction:

Improveservice accessibilityVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent segments private information into multiple distributed nodes across a decentralized network, eliminating centralized storage. Each node holds a portion of the data or access rights, making the system both accessible (services can be provided through any node) and secure (hacking one node does not compromise the entire system).

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces tokens as intermediaries that represent access rights to private information. These tokens enable service provision without direct exposure of the underlying private data, acting as a mediator between service providers and data owners while maintaining both accessibility and security.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If encryption technologies are used to protect private information, then security is improved, but vulnerability to key extraction attacks and data mining deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoidkey extraction attacks

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the essential function of private information (access rights) and separates it from the actual sensitive data. Tokens contain only the necessary access permissions without including the private information itself, eliminating the target for key extraction attacks while maintaining security through distributed verification.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates multiple identical copies of access rights across distributed nodes through token distribution. Instead of relying on a single encrypted copy that is vulnerable to attacks, the system uses numerous replicated tokens that collectively provide the same access functionality without centralizing the actual private information.

Inventive Principle:

Principle #26Copying

3Adaptability or versatility

If private information is transmitted directly for service provision, then service functionality is improved, but risk of information leakage and unauthorized copying deteriorates

Engineering Contradiction:

Improveservice functionalityVSAvoidinformation leakage

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent uses tokens as intermediaries that enable service functionality without transmitting actual private information. The tokens carry the necessary access rights and permissions, allowing services to function as intended while preventing information leakage since the sensitive data never leaves the data owner's control.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If decentralized approaches are used to prevent hacking, then security is improved, but system complexity increases

Engineering Contradiction:

ImprovesecurityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent creates a universal token system that can be applied across multiple services and data types without requiring separate decentralized implementations for each. The token mechanism provides a standardized, multi-functional approach to secure access control that reduces overall system complexity while maintaining security benefits.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11783415B2Method for providing services requiring private information using access rights in distributed network and recording medium for performing the method

Publication Date: 2023.10.10 KOREA UNIV RES & BUSINESS FOUND

AI summary

Disclosed is a method for trading private information access rights based on a distributed ledger, performed by a distributed network system including a plurality of distributed servers to perform authentication and store a token, the method including giving rights to use the token to a buyer terminal by performing authentication upon receiving a token trade request, permitting a service application server to use the token by performing authentication upon receiving a token usage request, providing, by the service application server, a predefined service by using the token and broadcasting usage detail of the token to the distributed network system, and updating, by the distributed server, the usage detail of the token.