Data Transmission Fragmentation for Secure Self-Healing Networks
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Solution Overview
Problem
Military communication networks face challenges in simultaneously achieving secure communication and network self-healing capabilities, as existing research often addresses these aspects separately, leading to inadequate construction of powerful military communication networks.
Innovation Solution
A data transmission method and device that establish multiple paths for secure communication, split data frames into fragments based on random numbers generated by a pre-set algorithm, and re-establish paths in case of failures to ensure continuous secure data transmission and network self-healing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If secure communication is implemented using application layer-based encryption, then communication security is improved, but network self-healing capability deteriorates because the system cannot rapidly switch paths when links break
Solution Approach 1:
The data frame is segmented into multiple fragments (N fragments) that can be transmitted through different paths. Each fragment is encrypted independently using the pre-set key and algorithm. When path failures occur, the system can dynamically select which fragments to transmit through available paths, achieving both security through encryption and self-healing through flexible path selection.
Solution Approach 2:
The system dynamically adjusts the transmission paths for different data fragments based on real-time network conditions. When link failures are detected, the system recalculates and reassigns paths for remaining fragments without requiring system reconfiguration, enabling rapid self-healing while maintaining security through consistent encryption.
2Adaptability or versatility
If multiple paths are established for data transmission, then network self-healing capability is improved, but communication security deteriorates because interceptors can more easily monitor multiple paths
Solution Approach 1:
By dividing the data into multiple encrypted fragments transmitted through different paths, the system ensures that interceptors monitoring any single path cannot reconstruct the original data. Each fragment requires the pre-set key and algorithm for decryption, so even if multiple paths are monitored, security is maintained as long as the encryption key remains secure.
Solution Approach 2:
The encryption algorithm acts as an intermediary that protects the data fragments during transmission through multiple paths. The pre-set key and algorithm ensure that even though fragments traverse different network paths, the security is maintained because interceptors cannot decrypt the fragments without the encryption key.
3Reliability
If data is split into multiple fragments and transmitted through different paths, then network robustness is improved, but system complexity increases due to path management and fragment recombination
Solution Approach 1:
The system performs preliminary actions by pre-establishing multiple transmission paths and pre-agreeing on the encryption key and algorithm between transmitter and receiver. Path selection criteria and fragment recombination rules are predetermined, which simplifies real-time decision-making during transmission and reduces the complexity of dynamic path management.
Solution Approach 2:
The system implements feedback mechanisms where the transmitter receives status information about path availability and adjusts fragment transmission accordingly. The receiver provides feedback on successfully received fragments, enabling the transmitter to retransmit only the necessary fragments through alternative paths, thereby managing complexity through intelligent feedback-driven adaptation.
Data Source
AI summary
A data transmission method and a data transmission device are provided. The method includes: establishing, by a transmitting end, N different first paths between the transmitting end and a receiving end in an established network; splitting, by the transmitting end, a fixed-length data frame into N first fragments; transmitting, by the transmitting end, the first fragments to the receiving end through the corresponding first paths respectively; splitting, by the transmitting end, the data frame into N-M second fragments in a case that a failure occurs in M of the first paths during transmission of the data frame; establishing, by the transmitting end, N-M different second paths between the transmitting end and the receiving end; transmitting, by the transmitting end, the second fragments to the receiving end through the corresponding second paths respectively.