Port Knock Sequences for Secure Network Node Communication
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Solution Overview
Problem
Existing technologies fail to securely communicate between network nodes, as they do not address the need for a secure communication between the network nodes, as they do not securely communicate between the network nodes, as they do not securely communicate between the network nodes, as they do not securely communicate between the network nodes.
Innovation Solution
A method for communicating between the network nodes, as the method securely communicates between the network nodes, as the method securely communicates between the network nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional communication methods are used between network nodes, then communication simplicity is maintained, but security is insufficient
Solution Approach 1:
The system performs preliminary actions by establishing secure channels and exchanging cryptographic keys before actual data communication begins. The port knock sequence is sent in advance to trigger key generation and distribution, ensuring security mechanisms are in place before sensitive communications occur.
Solution Approach 2:
The patent introduces intermediary elements including helper nodes that facilitate secure key exchange between destination nodes, and cryptographic protocols that mediate the secure communication process. These intermediaries enable secure communication without requiring direct trusted connections between all node pairs.
2Reliability
If port knock sequences are transmitted to establish secure communication, then security is improved, but network traffic and processing overhead increase
Solution Approach 1:
The system uses periodic port knock sequences at defined intervals to re-establish or refresh secure communication channels. This periodic approach balances security requirements with network efficiency by not continuously transmitting security handshakes but rather at appropriate intervals to maintain security without excessive overhead.
Solution Approach 2:
The patent employs parameter changes in the form of varying port numbers and sequences in the port knock mechanism. By changing these parameters dynamically, the system enhances security while optimizing the frequency and volume of communication packets, thereby reducing overall network overhead compared to fixed-parameter approaches.
3Reliability
If vocabulary phrases are encoded in port knock sequences, then communication security is enhanced, but detection and measurement difficulty increases
Solution Approach 1:
The system applies local quality by encoding vocabulary phrases in specific port knock sequences only when and where secure communication is needed, rather than uniformly across all network traffic. This localized approach enhances security for sensitive communications while minimizing detection difficulty and overhead for routine traffic that doesn't require encoded phrases.
Solution Approach 2:
The patent uses partial encoding where only necessary portions of communication are encoded in port knock sequences rather than all traffic. This selective encoding provides enhanced security for critical information while keeping the overall system detectable and measurable through unencoded traffic, balancing security enhancement with detectability.
Data Source
AI summary
For communicating securely between network nodes, a method transmits a port knock sequence comprising ordered empty protocol packets from an origination node to a destination Internet Protocol (IP) address of a destination node. The port knock sequence encodes at least one vocabulary phrase. The method transmits the length of the at least one vocabulary phrase to first and second helper nodes. The method generates a corresponding substitute phrase for each at least one vocabulary phrase through communication between the first helper node and the second helper node. The method receives the corresponding substitute phrase for each at least one vocabulary phrase at the origination node and the destination node. The method generates a node nonce based on the at least one corresponding substitute phrase. The method securely communicates between the origination node and the destination node using the node nonce.