Device Authentication via Performance Parameter Profiling
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Solution Overview
Problem
Existing device authentication methods using unique identifiers or dongles provide a specific and easily traceable target for attackers, making them vulnerable to security breaches.
Innovation Solution
Utilizing performance and stress test variations to create a unique profile for computing devices, eliminating the need for separate identity tokens by leveraging natural manufacturing and usage irregularities, and comparing these profiles for authentication purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If predetermined unique identifiers or dongles are embedded into devices for authentication, then device identity can be clearly established, but the security system becomes vulnerable to attacks as attackers have a specific and easily traceable target
Solution Approach 1:
The patent changes the authentication approach from using fixed predetermined identifiers to using dynamic performance parameters. Instead of relying on static serial numbers or dongles, the system measures performance characteristics (execution time, cycle counts, frequency responses) that naturally vary between devices and change over time, making authentication targets unpredictable and difficult to attack
Solution Approach 2:
The patent introduces dynamic measurement and comparison of performance parameters rather than static identifier verification. The authentication process continuously measures performance characteristics and compares them against stored profiles, creating a dynamic security system that adapts to device variations and is resistant to static attack vectors
2Reliability
If separate identity tokens or dongles are introduced for device authentication, then device security is enhanced, but device complexity and cost increase
Solution Approach 1:
The patent makes the device itself serve multiple functions: it is both the computational resource and the authentication credential. By using the device's own performance characteristics as the basis for authentication, the system eliminates the need for separate dongles or identity tokens, reducing complexity while maintaining security
Solution Approach 2:
The device authenticates itself through its inherent performance characteristics rather than requiring external authentication hardware. The system leverages the device's natural variations in performance parameters to create unique authentication profiles, allowing the device to serve its own authentication needs without additional components
3Ease of operation
If manufactured identifiers are embedded into devices, then device authentication is simplified, but the identification method becomes easily traced and targeted by attackers
Solution Approach 1:
The patent transitions from static manufactured identifiers to dynamic performance parameters for authentication. By measuring execution times, cycle counts, and frequency responses that naturally vary between devices, the system creates authentication credentials that are difficult to trace or predict, while maintaining operational simplicity through automated measurement and comparison
Data Source
AI summary
A method for authenticating a device including the steps of measuring at least one performance parameter of the device to obtain a measurement; and comparing the measurement of the at least one performance parameter with a previously stored measurement of the at least one performance parameter to determine an identity of the device. An apparatus and an article of manufacture for authenticating a device is also disclosed.