Zero-Knowledge Data Validation for Decentralized Trading

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Solution Overview

Problem

Decentralized data trading platforms face challenges in ensuring data reliability and quality without a central authority, making it difficult to establish a reliable transaction system, and involving third parties in validation decreases reliability.

Innovation Solution

A method and apparatus using zero knowledge proof to generate certificates and verify data validity, allowing buyers to validate data directly without a verifier, using a key generation algorithm to create key pairs and verification certificates, and performing zero knowledge proof to confirm data possession.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a centralized structure is used for data trading, then data validation and quality assurance can be performed reliably, but single point of failure and personal information leakage occur

Engineering Contradiction:

Improvedata validation reliabilityVSAvoidsingle point of failure and information leakage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the centralized validation function into distributed validation nodes across the blockchain network. Each participant can perform validation, eliminating the single point of failure while maintaining validation reliability through cryptographic proof mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces zero-knowledge proofs as an intermediary mechanism that enables validation without direct exposure of sensitive data. This allows reliable verification while protecting personal information from leakage.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If third parties are involved in data validation, then data quality can be ensured, but transaction reliability and decentralization are decreased

Engineering Contradiction:

Improvedata quality assuranceVSAvoidtransaction system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent enables participants to perform self-validation using zero-knowledge proofs. Each participant can independently verify data quality without relying on third-party validators, reducing system complexity while maintaining reliability through cryptographic guarantees.

Inventive Principle:

Principle #25Self-service

3Reliability

If zero knowledge proof is used for data validation, then buyer can validate data directly without verifier, but computational complexity increases

Engineering Contradiction:

Improvedirect validation reliabilityVSAvoidvalidation process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent performs validation computations in advance during the data submission phase, generating zero-knowledge proofs before the actual trading occurs. This preliminary validation reduces the computational burden during the trading phase while ensuring reliability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12418413B2Apparatus and method for validating data

Publication Date: 2025.09.16 ELECTRONICS & TELECOMM RES INST

AI summary

Disclosed herein is an apparatus and method for verifying data validity. The method performed by the apparatus includes generating a zero knowledge proof key pair and a certificate using a key generation algorithm of zero knowledge proof in response to a request from a first device to issue a key, generating a verification certificate by verifying validity and quality of data after receiving the data and a verification request from the first device, and performing, by the first device, zero knowledge proof for the data in response to a proof request from a second device that buys the data possessed by the first device.