IoT Security Platform for Centralized Key Management
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Solution Overview
Problem
Existing IoT systems require each service terminal to have independent security module hardware, increasing hardware costs and the risk of confidential data leakage.
Innovation Solution
Implement a security platform with a feature database that manages encryption and decryption operations, reducing the need for hardware security modules in terminals and centralizing key data storage, using asymmetric and symmetric encryption for secure data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each service terminal is provided with independent security module hardware to ensure data security, then data security is improved, but hardware cost increases
Solution Approach 1:
The patent extracts the security module hardware from each service terminal and consolidates it into a centralized security platform. The security platform contains a security database that stores encrypted data, while service terminals only store decryption keys. This extraction eliminates the need for expensive security modules in each terminal while maintaining data security through centralized management.
Solution Approach 2:
The patent merges multiple distributed security modules into a single centralized security platform. By combining the security functions of all terminals into one platform, the system reduces overall hardware costs while improving security through centralized control and unified encryption/decryption operations.
2Ease of operation
If each service terminal stores sensitive key data locally to enable service processing, then service processing capability is improved, but the risk of confidential data leakage increases
Solution Approach 1:
The patent segments the security architecture into two distinct parts: the security platform that stores encrypted data and service terminals that store only decryption keys. This segmentation ensures that sensitive encrypted data never resides in terminals, eliminating the leakage risk while maintaining service processing capability through key-based decryption.
Solution Approach 2:
The patent introduces an intermediary mechanism where the security platform acts as a mediator between encrypted data and service terminals. The platform provides secure storage and controlled access to encrypted data, while terminals use keys as intermediaries to decrypt only authorized data, preventing direct exposure of confidential information.
3Reliability
If security module hardware is provided in each terminal for encryption and decryption, then data security is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the complex encryption and decryption hardware from service terminals and relocates it to a centralized security platform. Terminals are left with simple key storage and basic decryption operations, while the platform handles all complex cryptographic operations, significantly reducing terminal complexity.
Solution Approach 2:
The patent uses copying by storing decryption keys in terminals as lightweight copies that enable local decryption without requiring full security module hardware. The actual encrypted data remains as a master copy in the security platform, while terminals hold only the necessary key copies for authorized access.
Data Source
AI summary
A data transmission method, applied to a security platform in an IoT system, including: receiving a first request data packet including feature data and collection channel information corresponding to the feature data; matching the feature data in the first feature database; in response to feature information matched with the feature data existing in the first feature database, generating a first feedback data packet, and sending it to the service terminal, so that the service terminal performs operations according to the first feedback data packet; and generating a match success result data packet, performing an encryption operation on the match success result data packet, and sending an encrypted match success result data packet to the server, so that the server obtains the match success result data packet through a decryption operation, and performs a service recording according to the match success result data packet.