Private Folder Duplication for Data Hiding

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Solution Overview

Problem

Existing methods for protecting private data on portable devices, such as smartphones and tablets, reveal the presence of sensitive information to others, leading to potential unauthorized access and unnecessary suspicion, as they require specific software tools to lock files with passwords.

Innovation Solution

A data protection method that creates a private folder with the same name as a public folder, allowing users to set a log-in password for private files stored in public folders, and compares input passwords to determine whether to display the private or public folder, effectively hiding private data without others' knowledge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional password protection software is used to lock private files, then data security is improved, but the existence of private data is revealed to others

Engineering Contradiction:
Improvedata securityVSAvoidprivacy of data existence
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent creates a public folder that is a copy or replica of the private folder structure, allowing the private folder to remain hidden while maintaining a deceptive public interface. The system copies the folder hierarchy and file listings to mask the actual private data location

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces a folder management system as an intermediary layer between the user and the file system. This mediator dynamically controls folder visibility based on authentication, presenting different folder structures to different users without revealing the actual private data location

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If private files are individually locked with passwords, then access control is improved, but device complexity increases

Engineering Contradiction:
Improveaccess controlVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple individual file locking operations into a single folder-level authentication mechanism. Instead of locking each private file separately, the system creates one private folder with unified access control, significantly reducing system complexity while maintaining security

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The private folder mechanism serves multiple functions simultaneously: it provides password protection, hides data existence, organizes multiple private files, and integrates with the existing public folder structure. This multi-functionality eliminates the need for separate protection mechanisms

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

Data Source

PatentUS9256754B2Data protection method and electronic device capable of creating a private folder having a same name as a public folder to hide private data
Publication Date: 2016.02.09 WISTRON CORP
  • US9256754B2 patent drawing
  • US9256754B2 patent drawing
  • US9256754B2 patent drawing

AI summary

A data protection method for an electronic device is disclosed. The data protection method includes setting a log-in password for a private file stored in a public folder, creating a private folder having a same folder name as the public folder to store the private file in the private folder, and comparing an input password with the log-in password for the private folder to determine to display the private folder or the public folder.