Independent Sequence Processing for Wireless Node Security
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Solution Overview
Problem
Existing wireless network security methods are vulnerable as adversaries can intercept and exploit encrypted channel hopping sequences, compromising network security.
Innovation Solution
Implementing independent sequence processing using encryption engines to derive next transmit and receive sequences locally at wireless nodes, without transmitting them over the network, ensuring secure communication by reordering message packet fragments based on initialization data sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encrypted channel hopping sequence is transmitted to the paired device, then the device can synchronize and communicate securely, but an adversary can intercept the encrypted sequence and observe used channels to mount future attacks
Solution Approach 1:
The patent extracts the channel hopping sequence from the transmitted data and generates it independently at both transmitter and receiver using shared initialization data. This removes the vulnerability of transmitting the sequence while maintaining the ability to synchronize communication between paired devices.
Solution Approach 2:
The patent introduces an intermediary cryptographic function that transforms shared initialization data into channel hopping sequences. This intermediary process allows both devices to derive the same sequence without transmitting it, preventing adversaries from intercepting the sequence while enabling secure synchronization.
2Ease of operation
If channel hopping sequence is encrypted and transmitted, then device pairing is enabled, but the transmission of sequence information aids adversaries in mounting attacks
Solution Approach 1:
The patent enables each device to self-generate the channel hopping sequence using its own cryptographic processor and shared initialization data. This self-service approach eliminates the need to transmit the sequence while maintaining pairing functionality, as both devices independently arrive at the same sequence.
Solution Approach 2:
The patent performs preliminary cryptographic processing of initialization data to generate the channel hopping sequence before communication begins. This preliminary action ensures that the sequence is never transmitted over the air, preventing adversaries from intercepting it while still enabling device pairing and synchronization.
Data Source
AI summary
A network includes a first wireless node that communicates over a wireless network connection. The first wireless node includes a first encryption engine that processes a first initialization data set and a current transmit sequence associated with a current communication to generate a next transmit sequence that is employed to communicate with a second wireless node that derives a next received sequence that corresponds to the next transmit sequence to process a subsequent communication.