2D Barcode Document Authentication via Segmented Overt Covert Data
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Solution Overview
Problem
The increasing sophistication of publishing tools makes it difficult for non-experts to detect forged documents, as they lack the expertise to exhaustively verify authenticity, leading to potential significant damage.
Innovation Solution
A system that uses a 2D barcode to encode and authenticate high-value documents, combining overt and covert data, where the overt data is readable by standard scanners and the covert data requires a specific key for decryption, ensuring authentication without revealing sensitive information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a document authentication system uses complex verification methods, then authentication reliability is improved, but ease of operation deteriorates because non-experts cannot perform exhaustive verification
Solution Approach 1:
The authentication code is segmented into two distinct parts: an overt portion that can be read by any standard barcode scanner, and a covert portion that requires a specific decryption key. This segmentation allows the system to maintain high authentication reliability through the covert portion while ensuring ease of operation through the accessible overt portion, resolving the contradiction between reliable authentication and user-friendly operation.
2Object-affected harmful factors
If a document authentication system embeds encrypted authentication codes, then security against forgery is improved, but device complexity increases due to the need for encryption and decryption mechanisms
Solution Approach 1:
The authentication code is divided into an overt portion stored in the barcode that provides basic security, and a covert portion that requires decryption key access for full verification. This segmentation enhances security against forgery while managing device complexity by allowing standard scanners to read the overt portion without requiring complex decryption capabilities.
Solution Approach 2:
The patent introduces an authentication server as an intermediary that stores the decryption keys and handles the complex verification process. The scanner device itself remains relatively simple, communicating with the server to complete authentication. This intermediary approach enhances security while preventing excessive complexity from being distributed across all scanning devices.
3Ease of operation
If a document authentication system uses standard barcodes, then ease of operation is improved, but manufacturing precision deteriorates because standard barcodes can be easily replicated
Solution Approach 1:
The barcode system is segmented into an overt portion using standard barcode formats that ensure ease of operation and compatibility with common scanners, and a covert portion that contains encrypted authentication data that is difficult to replicate. This segmentation maintains the ease of operation provided by standard barcodes while enhancing manufacturing precision and security through the covert encrypted portion.
Data Source
AI summary
Provided herein are systems and methods for providing document certification and authentication using 2D barcodes.