Device Authentication via Hardware Fingerprint Matching
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Solution Overview
Problem
Current device verification technologies rely solely on hardware attributes, making them unreliable and susceptible to forgery, leading to security hazards.
Innovation Solution
A device verification method that uses a device certificate including a device fingerprint generated from device attributes, where the target device is verified by matching the fingerprint with its attributes, ensuring only authorized devices can access services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If device verification is performed purely according to hardware attribute, then the verification process is simple, but the reliability of verification is low and security hazards such as forgery occur
Solution Approach 1:
The verification process is segmented into multiple independent components: hardware attribute collection, fingerprint generation through hashing algorithm, certificate issuance, and verification matching. Each component operates independently but contributes to the overall verification reliability, resolving the contradiction between simplicity and reliability.
Solution Approach 2:
The device fingerprint is generated and bound to a certificate in advance during the certificate issuance phase, before the actual verification occurs. This preliminary action creates a trusted reference that simplifies the verification process while ensuring reliability, as the fingerprint cannot be altered without invalidating the certificate.
2Ease of manufacture
If device verification uses only hardware attributes, then the verification method is easy to implement, but it is susceptible to forgery and has low security
Solution Approach 1:
A device fingerprint serves as an intermediary between the hardware attributes and the verification process. The fingerprint is generated through a cryptographic hashing algorithm that transforms complex hardware attributes into a fixed-length, unique identifier. This intermediary simplifies implementation while providing strong security, as the one-way hashing function prevents reverse engineering and forgery.
Solution Approach 2:
The verification method transforms physical hardware attributes into a different parameter space through cryptographic hashing. The hardware attributes (physical properties) are converted into a fingerprint (mathematical representation), and then verified against the certificate. This parameter transformation maintains ease of implementation while dramatically improving security against forgery.
3Reliability
If device fingerprint matching is performed to verify device certificate, then unauthorized access can be prevented, but the verification process becomes more complex
Solution Approach 1:
The device fingerprint is created as a copy or representation of the hardware attributes in a verified state. During verification, the system creates a new fingerprint from current hardware attributes and compares it to the stored fingerprint in the certificate. This copying mechanism ensures reliability through accurate matching while keeping the verification process relatively simple, as it only requires comparison operations rather than complex analysis.
Data Source
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AI summary
The present invention provides device verification methods and apparatuses, wherein the device verification methods are used for verifying a target device requesting performing a target service, one method including: receiving a device verification request sent by the to-be-verified target device, the device verification request including: a device certificate and first device attribute information of the target device, and the device certificate including a device fingerprint generated according to second device attribute information; and when it is confirmed according to the device fingerprint that the device certificate is valid, and the device fingerprint matches the first device attribute information, determining that the device certificate is a certificate of the target device, and allowing the target device to perform the target service. The present invention makes device verification more reliable.