Automated Removable Media Encryption via Event Detection
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Solution Overview
Problem
Existing data protection methods for removable media, such as encryption using traditional OS or encryption tools, require users to repeatedly input passphrases for encryption and decryption, making the process cumbersome and inconvenient, especially during attachment and detachment of media.
Innovation Solution
An information processor with built-in acceptance, encryption, and decryption means that automatically encrypts or decrypts data files when an external storage device is connected or disconnected, using event detection and passphrase management to simplify the operation, and includes software control for stopping access to the device during ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional encryption functions or encryption tools are used to encrypt data files, then data security is improved, but user convenience deteriorates due to repeated passphrase input requirements
Solution Approach 1:
The system automatically performs encryption when detecting medium ejection and decryption when detecting medium insertion, without requiring user intervention. The passphrase is automatically supplied from storage, eliminating the need for repeated user input while maintaining security
Solution Approach 2:
The passphrase is pre-stored in the system, and encryption/decryption operations are pre-configured to trigger automatically upon medium insertion/ejection events, eliminating the need for real-time user input during these operations
2Reliability
If encryption and decryption operations are performed manually through user interface, then security control is maintained, but operational complexity increases
Solution Approach 1:
The system combines multiple operations (detection of insertion/ejection, retrieval of passphrase, encryption/decryption execution) into a single automated workflow triggered by medium events, reducing operational complexity while maintaining security control
Solution Approach 2:
The system uses event detection mechanisms to monitor medium insertion and ejection, automatically triggering the appropriate encryption or decryption operation based on the detected event, creating a closed-loop automated security system
Data Source
AI summary
A system for controlling an external storage device connected to a computer by accepting an operation by a user via an acceptance means and encryption means for encrypting a predetermined data file stored in the external storage device, upon a particular event, is provided, is provided.