Blockchain Authority Segmentation for User Data Privacy
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Solution Overview
Problem
Existing digital data management systems, such as those using blockchain, do not adequately consider the management of user information, which is sensitive and requires special protection.
Innovation Solution
An information processing apparatus and method that generate and manage authority information categorized by user information types, allowing for hierarchical registration and access control using blockchain technology, enabling secure and privacy-level-based access to user data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital data is managed using a blockchain system, then data integrity and security are improved, but user information privacy protection is insufficient
Solution Approach 1:
The patent segments user information into multiple categories (e.g., personal information, financial information, health information) and assigns different authority levels to each category. This allows selective access control where different entities can access different categories based on their authority, thereby protecting sensitive user information while maintaining data integrity through blockchain.
Solution Approach 2:
The patent implements local quality by assigning different access permissions and authority levels to different pieces of user information based on their sensitivity and category. Each information category has its own access control policy, allowing the system to protect sensitive data while enabling necessary access to less sensitive data, thus addressing privacy concerns without compromising overall data utility.
2Object-affected harmful factors
If user information is classified into multiple categories with corresponding authority information, then privacy protection is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal authority information structure that can be applied across all categories of user information. The same blockchain-based access control mechanism and authority verification process is used for every information category, reducing the need for separate complex systems for each type of data while still providing category-specific protection.
Solution Approach 2:
The patent manages complexity by changing parameters in a controlled manner - specifically by defining a finite set of authority levels and information categories rather than allowing unlimited granular control. This parameterization approach makes the system manageable while still providing fine-grained access control where needed.
Data Source
AI summary
There is provided an information processing apparatus including a processor that generates a plurality of pieces of authority information for obtaining user information classified into a plurality of categories, in which the processor generates the authority information to correspond to each of a plurality of the categories.