Anti-forgery Security Marking with Digital Signatures
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Solution Overview
Problem
Current methods for securing articles against forgery and tampering are inadequate, as they often require high administrative overhead, are impractical for physical items, and fail to securely authenticate data associated with the articles, especially in contexts where offline verification is necessary.
Innovation Solution
A method using one-way functions and accumulators to generate and verify digital signatures for batches of articles, allowing for machine-readable security markings that include article data and verification keys, enabling secure authentication and tampering detection without the need for external databases or communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional material-based security markings are applied to articles, then authenticity detection is improved, but the ability to secure associated data is insufficient
Solution Approach 1:
The patent combines material-based security markings with digital data and cryptographic verification into a unified security system. The marking includes both physical authentication elements and embedded digital information, allowing simultaneous verification of article authenticity and data integrity through integrated checking procedures.
Solution Approach 2:
The security marking uses composite structure combining physical materials with digital information layers. The marking comprises multiple components including material-based authentication elements and embedded digital data, creating a multi-layered security system that provides both physical and digital protection.
2Reliability
If complex authenticating signatures are used to secure articles, then security level is improved, but storage requirements and administrative overhead increase
Solution Approach 1:
The patent extracts only the essential verification elements into compact digital signatures and checksums that can be embedded in the security marking. Instead of storing complete authentication data, the system uses condensed cryptographic representations that maintain security while minimizing storage requirements.
Solution Approach 2:
The system transforms complex authentication data into simplified verification parameters through cryptographic hashing and encoding. The digital signatures and checksums represent condensed forms of the original data that enable verification without requiring storage of the full authentication information.
3Reliability
If material-based security markings with intrinsic properties are used, then forgery resistance is improved, but offline verification capability is limited
Solution Approach 1:
The patent introduces digital signatures and verification algorithms as intermediaries between the physical marking and the verification process. These computational elements enable the marking to carry self-contained verification information that can be checked offline without requiring connection to external databases or authentication systems.
4Ease of operation
If simple identifiers like serial numbers are used for tracking articles, then ease of operation is improved, but security against counterfeiting is insufficient
Solution Approach 1:
The system creates a composite identifier that combines simple serial numbers with cryptographic signatures and digital checksums. The marking includes both the human-readable simple identifier for easy tracking and embedded cryptographic elements that provide strong counterfeiting protection, allowing the same marking to serve both simplicity and security requirements.
Data Source
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AI summary
The invention relates to securing of an article against forgery and falsifying of its associated data, and particularly of data relating to its belonging to a specific batch of articles, while allowing offline or online checking of the authenticity of a secured article and conformity of its associated data with respect to that of a genuine article.