Air-Gapped Data Exchange with Priority-Based Transfer Scheduling
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Solution Overview
Problem
Existing information exchange technologies between closed and open environments are inconvenient for handling irregular or unforeseen situations, as they rely on predetermined timing and are inefficient for urgent data transfers.
Innovation Solution
An information exchange apparatus and method that includes a reception part for registering transmission data, a management part for drafting a transmission plan considering priority, and a transmission part for storing data in an open side shared storage, with priority-based timing and access rights management to enhance flexibility and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If predetermined timing-based information exchange is used, then security is maintained through controlled data transfer, but flexibility and convenience for handling irregular or urgent situations deteriorate
Solution Approach 1:
The system transitions from static predetermined timing to dynamic priority-based scheduling. The management part dynamically adjusts transmission timing based on priority levels assigned to different data items, allowing urgent data to be transmitted immediately while maintaining security controls. This resolves the contradiction by making the system adaptable to different situations without compromising security.
Solution Approach 2:
The system changes the parameter of transmission timing from fixed predetermined values to variable values determined by priority levels. By introducing priority as a controllable parameter, the system can adjust transmission behavior based on data importance, enabling both secure operation and flexible response to urgent situations.
2Ease of operation
If removable media are used for data exchange, then portability and ease of use are improved, but security risks increase due to potential loss or unauthorized access
Solution Approach 1:
The patent introduces an intermediary exchange device that mediates between the closed and open networks. This device provides controlled data transfer capabilities without requiring physical media to leave the secure environment. Data is transmitted through the intermediary which enforces security policies, maintaining both portability and security.
3Ease of operation
If priority-based transmission scheduling is implemented, then convenience for urgent data transfer is improved, but system complexity increases due to additional management functions
Solution Approach 1:
The system implements self-service through automated priority-based scheduling. The management part automatically assigns priorities and determines transmission timing without requiring manual intervention. This reduces operational complexity while maintaining the convenience of priority-based transmission for urgent data.
Data Source
AI summary
An information exchange apparatus disposed at a closed network side, includes: a reception part that accepts to register transmission data to a closed side shared storage, the transmission data being transmitted from the closed network to an open network; a management part that drafts a transmission plan of the transmission data registered; and a transmission part that stores the transmission data registered in an open side shared storage according to the transmission plan, the open side shared storage being disposed at the open network side. The open network is a network in which an access source is not limited. The closed network has an air gap relative to the open network and is a network in which an access source is limited. A priority for transmission timing is set on the transmission data registered in the closed side shared storage. The management part drafts the transmission plan considering the priority.