One-Way Data Transfer System with Feedback Node Verification
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Solution Overview
Problem
One-way data transfer systems based on one-way data links face a dilemma in implementing data verification without compromising the unidirectionality of data flow, which is critical for maintaining security in high-security networks.
Innovation Solution
A one-way data transfer system with a built-in data verification mechanism is introduced, utilizing a feedback node connected via one-way links to generate and relay data verification information from the receive node to the send node, allowing for advanced hash algorithms like MD5 and SHA-1 to verify data integrity without allowing bilateral communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a one-way data link is used to enforce unidirectional data flow for security, then data security is improved, but data verification capability deteriorates
Solution Approach 1:
The patent introduces a feedback node as an intermediary component that receives data from the send node via the one-way data link, generates verification information, and relays it back to the send node. This intermediary enables verification functionality without compromising the unidirectional nature of the data link, as the feedback node acts as a trusted mediator that processes verification requests and responses within the constrained architecture.
Solution Approach 2:
The system segments the verification function into a separate feedback node that is distinct from the send and receive nodes. This segmentation allows the verification process to be isolated and handled by a dedicated component that operates within the one-way link constraints, enabling verification capability while maintaining the security properties of the unidirectional data flow.
2Reliability
If data verification mechanisms are implemented in one-way data transfer systems, then data integrity is improved, but system complexity increases
Solution Approach 1:
By introducing the feedback node as a specialized intermediary, the patent adds verification capability without significantly complicating the send and receive nodes. The feedback node handles the complex verification logic, keeping the main data transfer nodes simple and focused on their primary function of unidirectional data flow.
Solution Approach 2:
The system implements a feedback mechanism where the feedback node receives data, generates verification information using hash algorithms, and relays the verification results back to the send node. This feedback loop enables data integrity verification while maintaining a relatively simple system architecture by using a dedicated feedback component rather than complicating the main data path.
3Measurement precision
If advanced hash algorithms are used for data verification, then verification precision is improved, but computational requirements increase
Solution Approach 1:
The feedback node serves as a computational intermediary that performs the intensive hash algorithm operations. By concentrating the computational requirements in a dedicated feedback node rather than distributing them across all nodes, the system achieves high verification precision using advanced hash algorithms while managing computational load efficiently through specialized hardware or software at the feedback node.
Data Source
AI summary
Embodiments of the present invention are directed to a one-way data transfer system with built-in data verification mechanism, comprising three nodes (Send Node, Receive Node, and Feedback Node) wherein (1) the three nodes are interconnected with each other by a one-way data link, and (2) the Feedback Node is designed solely for processing and relaying data verification information from the Receive Node to the Send Node. In these embodiments, the Send Node is capable of verifying the status of data it transferred to the Receive Node over a one-way data link without sacrificing the unidirectionality of data flow in the system and thereby compromising the level of security provided by use of one-way data links.