Document Authentication Token With Timestamped Visual Marking
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Solution Overview
Problem
Current document authentication methods are cumbersome, requiring forensic analysis and long lead times, and lack a robust, fast, simple, and reliable method to verify the authenticity of physical and electronic documents, especially in the absence of a token mechanism to verify the signatory authority and without printing them out as physical documents.
Innovation Solution
A method involving a registered token that prints a visual marking with a document identifier and timestamp, optionally encrypting the document copy, and stores it with an associated identifier, using a document storage service for verification, and a system comprising a token, host device, and database for secure login and document retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional forensic analysis methods are used for document authentication, then reliability of authentication is improved, but time consumption and complexity increase significantly
Solution Approach 1:
The system performs preliminary actions by pre-generating cryptographic hashes of original documents and storing them in a database before any verification is needed. When verification is required, the system simply compares the hash of the presented document against the pre-stored hash, eliminating the need for time-consuming forensic analysis at verification time.
Solution Approach 2:
The invention creates a digital copy (cryptographic hash) of the document's essential authentication features and stores it separately. This copy can be quickly compared against the original without needing to physically examine or analyze the entire document, thus reducing verification time while maintaining reliability.
2Productivity
If digital authentication methods are used, then verification speed is improved, but trust and reliability may be compromised without physical tokens
Solution Approach 1:
The system merges digital authentication methods (cryptographic hashes, database storage, automated comparison) with physical elements (tokens, printed document copies). This combination maintains the speed advantages of digital systems while incorporating physical tokens that provide tangible proof of authentication, thereby preserving trust and reliability.
Solution Approach 2:
The invention introduces a trusted third-party service (authentication service) that acts as an intermediary between the document creator and verifier. This service maintains a secure database of authenticated document hashes and provides verification, adding a layer of trusted mediation that enhances reliability while keeping the process fast and automated.
3Reliability
If document copies are stored and encrypted, then security and reliability are improved, but storage complexity and processing time increase
Solution Approach 1:
The system extracts only the essential authentication information from documents (creating cryptographic hashes) and stores only these extracted features in the database, rather than storing complete document copies. This reduces storage complexity and processing requirements while maintaining security and reliability for authentication purposes.
4Ease of operation
If visual markings are printed on documents, then ease of verification is improved, but susceptibility to copying and forgery increases
Solution Approach 1:
The system performs preliminary verification by comparing cryptographic hashes before allowing access or acceptance of documents. The visual markings serve only as convenient indicators, but the actual authentication decision is based on the pre-computed hash comparison, which is difficult to forge. This maintains ease of verification while mitigating forgery risk.
Solution Approach 2:
The cryptographic hash acts as an intermediary between the visual marking and the authentication decision. The visual marking provides ease of identification, but the hash comparison provides the security check that prevents forgery. This intermediary layer allows the system to benefit from both ease of verification and security.
Data Source
AI summary
A method and token (3) for corroborating a document (25) includes having a registered token (3) with a token identity. The token (3) is able to print visual markings. A document identifier is obtained (18) based on at least the token identity and a timestamp. The document identifier is encoded (19) into a visual marking (24), and the visual marking (24) is applied to the document (25). A copy of the document (25) is obtained (27) with or without the visual marking (24), and copy is stored in association with the document identifier. The token (3) includes storage holding a token identity and a printing unit. The token (3) is configured to receive the visual marking (24) encoding a document identifier associated with the token identity and to print the received visual marking (24). A method also verifies a document (41) having a corresponding visual marking (42).