Orientation-Based Unique Codes for Unclonable Object Authentication
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Solution Overview
Problem
Existing anti-counterfeit and authentication technologies lack efficient methods to generate unique codes for objects that are difficult to clone or replicate, particularly in scenarios where spectral signatures are impractical or unreliable.
Innovation Solution
Utilizing crystalline particles with randomly distributed orientations and positions, such as nitrogen-vacancy centers in diamond, to create a unique marker that is authenticated through magnetic resonance and fluorescence techniques, providing a unique code based on particle positions, orientations, and optional additional properties like crystal strain and spin dephasing times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spectral signatures are used for authentication, then authentication reliability is improved, but the method becomes impractical or unreliable in certain scenarios
Solution Approach 1:
The patent transitions from using spectral signatures to using spatial parameters (positions and orientations of crystalline particles) as the basis for authentication. This parameter change enables the system to work in scenarios where spectral methods fail, while maintaining authentication reliability through the uniqueness of particle distributions.
2Reliability
If complex authentication methods are used to ensure security, then authentication security is improved, but the system complexity increases
Solution Approach 1:
The crystalline particles naturally provide their own uniqueness through random distribution and inherent properties (positions, orientations, strain, dephasing times). The system leverages these self-generated characteristics rather than requiring complex external authentication mechanisms, thereby achieving high security with reduced system complexity.
Solution Approach 2:
The patent replaces complex mechanical or procedural authentication systems with a physics-based approach using magnetic resonance and fluorescence properties of crystalline particles. This substitution simplifies the authentication system while maintaining or enhancing security through the fundamental physical uniqueness of each particle configuration.
3Reliability
If unique markers are created using random particle distributions, then unclonability is improved, but measurement and detection difficulty increases
Solution Approach 1:
The patent utilizes fluorescence emission from crystalline particles as a detectable signal. By exciting the particles and measuring their fluorescence characteristics (intensity, lifetime, spectral properties), the system can easily detect and measure particle positions and orientations without requiring complex measurement apparatus, thus reducing detection difficulty while maintaining unclonability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a highly secure and unclonable authentication method that ensures authenticity by leveraging the inherent randomness of particle distributions, making it impractical to replicate the unique marker without altering its physical properties.
Implementation Method 1
utilizing crystalline particles with randomly distributed orientations and positions, such as nitrogen-vacancy centers in diamond, to create a unique marker that is authenticated through magnetic resonance and fluorescence techniques
Implementation Method 2
authenticated through magnetic resonance and fluorescence techniques, providing a unique code based on particle positions, orientations, and optional additional properties like crystal strain and spin dephasing times
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3
AI summary
In a general aspect, orientation information is used to generate a unique code. In some aspects, orientation information is extracted from an object. The object includes multiple elements, and the orientation information indicates the relative spatial orientations of the respective elements. The orientation information can be extracted, for instance, by a scanner system that detects the elements. A unique code is generated for the object based on the orientation information. In some examples, the elements are diamond particles that each have one or more color centers, and the orientation information is extracted by detecting the color centers.