Blockchain Access Rights Management for Traceability Data
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Solution Overview
Problem
Existing distribution management systems face challenges in appropriately setting access rights for traceability information in product distribution processes, particularly in protecting personal information and managing access rights dynamically, especially in scenarios like reselling and sharing where multiple users are involved.
Innovation Solution
A distribution management apparatus and system that utilizes a blockchain-based distributed ledger system to manage access rights by generating and updating access right information based on transaction data, allowing only authorized parties to access specific processes in the distribution chain, with dynamic access control mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access rights to traceability information are set statically as in Patent Literature 2, then access control is simplified, but personal information protection is insufficient
Solution Approach 1:
The patent implements dynamic access right management by automatically updating access rights based on changing distribution relationships. When a product changes ownership or distribution status, the system automatically adjusts who can access which traceability information, transforming static access control into a living, adaptive system that responds to real-world changes while maintaining strong personal information protection.
Solution Approach 2:
The system incorporates feedback mechanisms where the distribution management apparatus continuously monitors distribution relationships and automatically adjusts access rights accordingly. This feedback loop ensures that access rights remain appropriate and up-to-date without requiring manual reconfiguration, balancing protection needs with system complexity.
2Reliability
If traceability information is made accessible to all parties in the supply chain, then transparency is improved, but personal information protection deteriorates
Solution Approach 1:
The patent applies local quality by granting different levels of access to different parties based on their specific roles and needs. Instead of uniform access for all supply chain participants, the system provides customized access rights where each party can access only the traceability information relevant to their function, such as manufacturers accessing production data while retailers access distribution information, thereby protecting personal information while maintaining necessary transparency.
Solution Approach 2:
The system segments traceability information into different accessible portions based on user roles and distribution relationships. By dividing the information access structure into segmented layers, the system allows transparency where needed while protecting personal information from unauthorized access, resolving the contradiction between information availability and privacy protection.
3Reliability
If access rights are dynamically adjusted based on distribution relationships, then personal information protection is improved, but access control complexity increases
Solution Approach 1:
The distribution management apparatus performs self-service by automatically managing access right updates based on distribution relationships without requiring manual intervention. The system monitors its own state changes and autonomously adjusts access rights, reducing the operational complexity of access control while maintaining strong protection mechanisms.
Solution Approach 2:
The patent merges the access right management function with the distribution management function into a single integrated system. By combining these functions, the system eliminates the need for separate complex access control mechanisms and achieves dynamic access right adjustment through the natural flow of distribution operations, simplifying overall system architecture.
Data Source
AI summary
A traceability information management server includes: a transaction reception part that receives transaction data from a user client, the transaction data containing information on a completed process in distribution of a product and a concerned party in the completed process; an access right information generation part that generates access right information, the access right information being information on a relation between the completed process, the concerned party in the completed process, and a predetermined access right of the concerned party; an access right determination part that identifies, based on the access right information, information on a process in the distribution to which a sender of the received information provision request from the user client has an access right; and an information transmission part that transmits the identified information on the process to the user client that has sent the information provision request.