Edge Device Blockchain Data Linking for Identity Verification
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Solution Overview
Problem
Existing blockchain-based identity verification systems fail to ensure the authenticity of data and correct linking of feature values, allowing data alteration and compromising the recognition results.
Innovation Solution
A management system that includes an edge device connected to a blockchain network, which processes image data, converts it into a hash value, and links the recognition results and attribute information as linked data for secure registration in a distributed ledger, ensuring data authenticity and traceability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is recorded in a distributed ledger for identity verification, then the verification reliability is improved, but the data authenticity cannot be ensured and data alteration may occur
Solution Approach 1:
The patent segments the data verification process into two independent parts: (1) recording only hash values in the distributed ledger, and (2) storing original data separately in secure storage. This segmentation ensures that the ledger contains immutable verification data while original data is protected separately, preventing data alteration and ensuring authenticity.
Solution Approach 2:
The patent uses hash values as digital copies of the original data for storage in the distributed ledger. Instead of storing actual data, the system creates a cryptographic hash copy that uniquely represents the original data. This allows verification of data integrity without storing the actual data in the ledger, preventing alteration while maintaining verification capability.
2Ease of operation
If feature values are extracted and recorded for verification, then the verification process is simplified, but the correct linking of feature values and acquired data cannot be ensured
Solution Approach 1:
The patent introduces hash values as an intermediary element that links feature values and acquired data. The hash value acts as a unique identifier that connects the extracted features with the original data without requiring direct storage of both in the same location. This intermediary mechanism ensures correct linking while maintaining system simplicity.
Solution Approach 2:
The system implements a feedback mechanism where the hash value stored in the distributed ledger is used to verify the integrity of the link between feature values and acquired data. During verification, the system retrieves the hash value, regenerates it from the acquired data, and compares the two to confirm correct linking, providing automated verification feedback.
Data Source
AI summary
A management system includes an edge device, and a blockchain network connected to the edge device. The edge device includes a processor, and a memory storing a program which, when executed by the processor, causes the edge device to execute recognition processing on acquired image data, hold attribute information related to capturing of the image data, and convert the image data into a hash value. The management system links, as linked data, the hash value converted by the edge device, the result of the recognition processing by the edge device, and the attribute information held by the edge device with one another, and registers the linked data in a distributed ledger in the blockchain network.