Blockchain Device Identity Management for Secure Access Control
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Solution Overview
Problem
Existing identity management systems for devices, particularly in large quantities, face challenges in efficiency and security, especially in managing device identities and ensuring data privacy and security in communication networks.
Innovation Solution
A device management system utilizing a blockchain-based approach with access control nodes, file systems, and database nodes for automated identity management, including smart contracts to verify and store device identities, ensuring secure access and data privacy through a decentralized platform.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual identity management is performed on devices, then identity issuing and reclamation can be controlled, but efficiency deteriorates when managing large quantities of devices
Solution Approach 1:
The system enables devices to automatically manage their own identities through machine identity agents that autonomously perform identity issuance, verification, and reclamation operations without manual intervention, allowing devices to serve themselves in the identity management process
Solution Approach 2:
A blockchain-based identity management system acts as an intermediary between devices and identity providers, automating identity operations through smart contracts and distributed consensus mechanisms to handle large quantities of devices efficiently
2Reliability
If decentralized blockchain-based management is implemented, then security and data privacy are improved, but device complexity increases
Solution Approach 1:
The system divides identity management functionality into separate components: machine identity agents running on individual devices, blockchain nodes for consensus, smart contracts for logic execution, and distributed storage for identity data, allowing each component to be optimized independently
Solution Approach 2:
The blockchain network provides continuous feedback through distributed consensus validation, ensuring that identity operations are securely recorded and verified across multiple nodes, enhancing reliability through collective verification
Data Source
AI summary
A device management method, system, and apparatus are disclosed. The method includes: A second device sends an identity file to a first access control node, to indicate the first access control node to store the identity file in a file system, where the identity file includes identity information of a first device and a public key of the second device. The second device receives a first identifier sent by the first access control node. The first identifier is used to read the identity file from the file system. After verification is performed on the second device and information about a device associated with the first device in association information and succeeds, the first access control node sends the identity file to the file system. The association information is stored in a database node and a blockchain.