Selective Document Encryption via Digital Pen Annotation
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Solution Overview
Problem
Current methods for sharing documents created with digital pens require authors to edit or create multiple versions to control access to specific portions, which is time-consuming and prone to errors, as they need to ensure that only intended information is shared with individuals.
Innovation Solution
A method and system for selective annotation using digital pens, where annotation borders and verbs specify encryption settings, allowing authors to encrypt specific portions of documents, enabling secure sharing with different individuals or groups by applying encryption based on defined criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the author edits the document to remove or obscure portions not intended for sharing, then the security of sensitive information is improved, but the time and effort required to prepare multiple document versions increases
Solution Approach 1:
The patent divides the document into multiple portions with different access rights. Each portion can be independently encrypted or decrypted based on the recipient's authorization, eliminating the need to create separate document versions for different recipients.
Solution Approach 2:
The patent applies different encryption properties to different portions of the same document. Sensitive portions remain encrypted while non-sensitive portions are accessible, allowing selective sharing without creating multiple document versions.
2Manufacturing precision
If the author prepares multiple versions of the document for different recipients, then the precision of information sharing control is improved, but the complexity of document management increases
Solution Approach 1:
The patent segments the document into protected and unprotected portions, allowing precise control over what each recipient sees without managing multiple document versions. The segmentation is applied dynamically based on recipient authorization.
Solution Approach 2:
The patent creates a single multi-functional document system that can serve multiple recipients with different access levels simultaneously. The same document structure adapts its encryption state based on the recipient's credentials, eliminating the need for multiple specialized versions.
3Ease of operation
If the author uses traditional document editing methods to control sharing, then the ease of operation is maintained, but the productivity of document sharing decreases
Solution Approach 1:
The patent enables the document to automatically manage its own encryption and decryption states based on recipient authorization. The system self-adjusts which portions are accessible without requiring manual editing for each recipient, significantly improving sharing productivity.
Solution Approach 2:
The patent applies encryption to sensitive portions of the document in advance, before sharing. This preliminary encryption action eliminates the need for time-consuming editing and version preparation, allowing rapid document sharing with controlled access.
Data Source
AI summary
The invention provides a method, system, and program product for encrypting portions of a document using selective annotation. One method according to the invention includes: defining an annotation border adjacent a portion of a document using a digital pen; applying to the portion of the document an annotation verb specifying that the portion of the document is to be encrypted; entering into the portion of the document information to be encrypted; and encrypting the portion of the document.