Document Image Security Processing via Role-Based Encryption
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Solution Overview
Problem
The increasing use of consumer-operated devices for financial transactions and business accounting exposes sensitive information on documents, such as checks, to unauthorized access, leading to potential identity theft due to unnecessary exposure of confidential data.
Innovation Solution
A system and method for document image security processing that identifies and custom encrypts sensitive information within a document image based on security roles, ensuring that only authorized viewers can access and view the secure information, using an image security manager and configuration interface to manage access rights and obfuscate sensitive data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If check images are made accessible to multiple personnel for processing, then operational efficiency is improved, but security risk increases due to unnecessary exposure of confidential information
Solution Approach 1:
The patent applies local quality by implementing role-based access control where different personnel roles (teller, supervisor, manager) are granted different levels of access to confidential information in check images. Each role receives only the minimum necessary information to perform their specific duties, rather than providing universal access to all personnel.
Solution Approach 2:
The patent segments confidential information into different categories (routing information, account numbers, personal identifiers) and assigns different access permissions to different personnel roles based on their specific needs, allowing operational efficiency while minimizing security risks through differentiated access control.
2Adaptability or versatility
If all personnel can view complete check images, then issue resolution capability is improved, but exposure of unnecessary confidential information increases
Solution Approach 1:
The patent implements partial action by providing personnel with only the specific portions of check images necessary for resolving their issues, rather than providing complete access to all information. The system dynamically adjusts the level of information disclosure based on the personnel role and specific operational context.
3Measurement precision
If confidential information is fully visible in check images, then processing accuracy is improved, but vulnerability to identity theft increases
Solution Approach 1:
The patent applies local quality by selectively masking or redacting portions of confidential information in check images based on the viewing personnel's role and authorization level, while preserving the visibility of information necessary for accurate processing of the specific operational task at hand.
Data Source
AI summary
A document image is obtained and fine-grain item-specific information within the document image is encrypted with varying levels of encryption, each encryption level associated is with a specific security access role. When the document image is presented to an end-user, the end-user's security access role determines which portions of the fine-grain item-specific information is decrypted and which portions remain encrypted, such that some portions of the document image are obfuscated from the end-user based on the end-user's security access role.


