Document Authentication via Computational Tag Wireless Embedding

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Solution Overview

Problem

Existing document authentication methods, including physical stamps and encoded data techniques, offer weak guarantees of genuineness due to forgery and hacking risks, respectively.

Innovation Solution

A document authentication system utilizing a computational tag for short-range wireless communication, which receives authentication information to generate encoded data and embed it in documents as visible or non-visible features, providing secure authentication for both electronic and printed versions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If physical stamps and imprimaturs are used for document authentication, then the authentication process is simple and physical possession is required, but the security guarantee is weak due to forgery and duplication risks

Engineering Contradiction:
Improveauthentication process simplicityVSAvoidsecurity guarantee
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces physical mechanical stamps with electronic computational tags that generate encoded data through cryptographic algorithms. The computational tag uses wireless communication to transmit authentication information and generates encoded data that is embedded in the document, eliminating the need for physical stamps while maintaining the requirement for physical possession of the authentication device.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If encoded data techniques are used for document authentication, then the security guarantee is improved compared to physical stamps, but the system becomes vulnerable to hacking and encryption algorithm cracking due to network accessibility

Engineering Contradiction:
Improvesecurity guaranteeVSAvoidhacking and encryption cracking vulnerability
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the computational tag from the networked computerized device and makes it a standalone physical device with short-range wireless communication only. The computational tag contains the encryption algorithms and authentication information locally, eliminating the need for network accessibility. This isolation prevents remote hacking and encryption algorithm cracking while maintaining secure authentication functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The computational tag acts as an intermediary between the authentication system and the document. It receives authentication information via short-range wireless communication, generates encoded data locally using stored cryptographic algorithms, and embeds this data in the document. This intermediary role isolates the sensitive cryptographic functions from networked systems, preventing remote attacks.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If a computational tag with short-range wireless communication is used, then network accessibility and hacking vulnerability are eliminated, but the device complexity increases

Engineering Contradiction:
Improvenetwork accessibility limitationVSAvoidcomputational tag structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The computational tag integrates multiple functions into a single device: it contains a processor for executing cryptographic algorithms, memory for storing authentication information and encryption keys, a transceiver for short-range wireless communication, and capabilities for generating and embedding encoded data. This multi-functionality consolidates what would otherwise require separate components into one unified authentication device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9819660B2Systems and methods for document authentication
Publication Date: 2017.11.14 XEROX CORP
  • US9819660B2 patent drawing
  • US9819660B2 patent drawing
  • US9819660B2 patent drawing

AI summary

Disclosed are systems and methods that provide authentication for printed and/or electronic versions of a document through the use of a document authentication device in the form of a computational tag configured for short-range wireless communication only. This document authentication device receives authentication information for a document from a computerized device over a wireless communication link and uses this authentication information to generate encoded data to be embedded in the document in order to establish the authenticity of the document by functioning as an imprimatur. Specifically, when embedded in the document, this encoded data can add a visible feature or non-visible feature that, upon inspection, establishes the authenticity of an electronic version of the document and/or can add a printable feature, which will be readable off a surface of a printed version of the document to establish the authenticity of that printed version.