Latent-Image Document Authentication Against Two-Dimensional Code Forgery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing document authentication methods are vulnerable to forgery due to the ease of copying two-dimensional codes, which undermines the authenticity of documents.
Innovation Solution
Generate tamper-proof latent-image data, such as a two-dimensional code, that is embedded as a latent image within the document data, making it invisible to the naked eye but readable under specific light conditions, and combine it with the document data to create a composite image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-dimensional codes are used for document authentication, then document verification capability is improved, but vulnerability to forgery increases due to ease of copying
Solution Approach 1:
The patent embeds a two-dimensional code within a latent image that is further embedded in document data, creating multiple nested layers of information. The two-dimensional code contains authentication information that is nested within the latent image structure, which itself is nested within the overall document data, making unauthorized extraction and forgery significantly more difficult
Solution Approach 2:
The patent transitions from visible two-dimensional codes to latent images that exist in a different dimensional space - invisible to the naked eye and requiring specific reading conditions. This dimensional transformation from visible to latent space creates an additional layer of security against copying and forgery
2Reliability
If latent-image data is embedded within document data, then document security is improved, but device complexity increases due to additional processing requirements
Solution Approach 1:
The patent merges the authentication function directly into the document data structure by embedding latent-image data containing two-dimensional codes within the document itself. This integration eliminates the need for separate authentication systems and devices, reducing overall system complexity while maintaining security
Solution Approach 2:
The document data structure is designed to self-contain all necessary authentication elements through embedded latent images and two-dimensional codes. The system performs self-verification by incorporating all authentication mechanisms within the document structure itself, reducing external processing requirements
Data Source
AI summary
An information processing apparatus includes circuitry. The circuitry transmits document data in response to a request signal transmitted from an information processing terminal and requesting output of the document data. Based on an information signal transmitted from the information processing terminal and indicating information that is not described in a document indicated by the document data, the circuitry generates latent-image data as a latent image including the information signal and the document data. The circuitry outputs the latent-image data and the document data.