Page-Specific Security Marking for Document Authenticity
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Solution Overview
Problem
Existing document security systems fail to effectively watermark each page of a printed document to prevent unauthorized copying or alteration, and lack unique data encoding specific to each page, making it difficult to verify authenticity.
Innovation Solution
A document security system that integrates a printer with a digital file source, where each page is marked with unique security data during printing, using methods such as DNA-based ink or Optical Variable Devices, ensuring the mark is unique to each page and difficult to counterfeit, and only allows printing by authorized personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a watermark is applied to printed documents using conventional methods, then document security is improved, but the watermark can be copied along with the document and does not provide unique identification for each page
Solution Approach 1:
The patent divides the security marking system into page-specific segments by inserting unique data into the print stream for each individual page. This segmentation ensures that each page carries its own unique identifier, preventing successful copying while maintaining a relatively simple overall system architecture that integrates with existing printers.
Solution Approach 2:
The patent applies local quality by making each page of the document have a unique security characteristic through page-specific data insertion. Instead of applying a uniform watermark across all pages, each page receives customized security marking data, enabling individual page verification and preventing successful replication.
2Reliability
If certification techniques are used at the digital file level, then digital document security is improved, but the security does not extend to printed hard copies
Solution Approach 1:
The patent makes the security system universal by enabling the same security mechanism to protect both digital files and their printed hard copies. The system intercepts the print stream from digital documents and automatically inserts page-specific security data, allowing verification of authenticity across multiple document formats and media types without requiring separate security systems.
3Reliability
If encryption systems are used for remote printing, then security during transmission is improved, but the printed document lacks verification of authenticity
Solution Approach 1:
The patent applies preliminary action by inserting page-specific security data into the print stream before the document is printed. This proactive approach ensures that authenticity verification information is embedded in the printed document itself, preventing loss of verification data and enabling later authentication without relying solely on transmission encryption.
Data Source
AI summary
A document security system for securely printing documents that are uniquely marked on each page of ordinary or specialized paper with a security mark such that copying and or alteration is prevented, the security mark comprising information relating to the document and further being unique to each page having specific information relating to each page of the document.