Coded Signature System for Document Authentication
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Solution Overview
Problem
Current digital signature techniques lack security as they can be compromised, leading to doubts about the true identity of the signer, and biometric verification systems are vulnerable to software manipulation, making them difficult to secure.
Innovation Solution
A method that generates a unique 'Coded Signature' for each document using biometric verification, combining the signer's actual signature with a computer-generated code containing document-specific information, such as date, time, and location, to enhance security and prevent forgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If digital signature techniques are used to bind an individual to an electronic document, then the signing process becomes automated and efficient, but security is compromised because secret keys can be obtained by unauthorized individuals
Solution Approach 1:
The patent replaces the mechanical/key-based digital signature system with a biometric-based signature system. Instead of relying on secret keys that can be compromised, the system uses biological characteristics (fingerprint, facial recognition, iris scan) that are inherent to the individual and cannot be easily replicated or stolen. This substitution maintains automated signing efficiency while fundamentally improving security.
Solution Approach 2:
The patent changes the fundamental parameter of identity verification from something the individual knows or possesses (secret key) to something the individual is (biometric characteristics). This parameter change makes the signature system more secure because biometric data cannot be easily compromised, shared, or lost like traditional credentials.
2Reliability
If biometric verification is used to enhance signature security, then authentication reliability improves, but the system becomes vulnerable to software manipulation
Solution Approach 1:
The patent segments the signature verification process into multiple independent verification points. Instead of relying on a single software-based biometric check, the system creates multiple verification layers including biometric authentication, document hash verification, and timestamp validation. This segmentation reduces the risk of complete system compromise.
Solution Approach 2:
The patent introduces cryptographic hash functions as an intermediary layer between the biometric verification and the final signature validation. The hash function creates a unique digital fingerprint of the document that can be verified without exposing the biometric data or signature keys, adding a layer of security that protects against software manipulation.
3Reliability
If a coded signature containing document-specific information is generated, then forgery resistance improves, but the signature generation process becomes more complex
Solution Approach 1:
The patent merges multiple elements into a single coded signature structure: the individual's biometric identifier, the document's cryptographic hash, a timestamp, and location data. This combination creates a comprehensive signature that provides strong forgery resistance while being generated through an integrated process that manages complexity through unified design.
Solution Approach 2:
The coded signature structure is designed to be universal and multi-functional, serving as both an authentication mechanism and a verification tool. The same structure that provides forgery resistance also enables efficient verification by containing all necessary information (biometric reference, document hash, timestamp) in a single verifiable package.
Data Source
AI summary
The present invention is a computer implemented method comprising; receiving, by at least one processor, a request to sign a document, authenticating, by one or more processors, a user account, generating, by one or more processors, a coded signature, wherein the coded signature includes a set of data and the set of data is specific to the document and the user account, embedding, by one or more processors, the coded signature in the document, capturing, by one or more processors, an image of the image of signed document, and wherein a verification is requested of a signature, further comprising, analyzing, by one or more processors, the Coded Signature data and the document data to determine if the similarity of the data is within the predetermined tolerance.