Wireless Authentication Using Predicted Packet Content

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Solution Overview

Problem

Wireless networks face challenges in ensuring authentication while minimizing energy consumption and bandwidth usage, particularly in low data rate, battery-driven applications like building security and industrial control, where data communication often dominates energy expenditure.

Innovation Solution

The method involves predicting the content of data packets at the receiver node using prior communications, lookup tables, or formulas, allowing the receiver to calculate and verify the Message Authentication Code (MAC) before receiving the packet, thereby reducing the need to transmit entire data packets and minimizing energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If authentication mechanisms are deployed in wireless networks to ensure security, then data confidentiality and authenticity are improved, but energy consumption and bandwidth usage increase

Engineering Contradiction:
Improveauthentication securityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts only the essential authentication element (MAC value) from the complete data packet and transmits it separately. The receiver uses locally stored prediction models to reconstruct the original data without receiving the entire packet, thereby reducing the amount of data transmitted while maintaining authentication security.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The receiver node performs preliminary actions by storing prediction models and predicting data packet contents before actual reception. This allows the receiver to calculate expected MAC values in advance and compare them with received MAC values, enabling authentication without receiving the full packet content.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If authentication mechanisms are deployed in wireless networks to ensure security, then data confidentiality and authenticity are improved, but bandwidth allocation is reduced

Engineering Contradiction:
Improveauthentication securityVSAvoidbandwidth utilization
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent extracts only the essential authentication element (MAC value) from the complete data packet and transmits it separately. The receiver uses locally stored prediction models to reconstruct the original data without receiving the entire packet, thereby reducing the amount of data transmitted while maintaining authentication security.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The receiver node creates local copies of prediction models and uses them to generate predicted data packet contents. This copying approach allows the receiver to reconstruct original data from minimal transmitted information (only MAC values), significantly reducing bandwidth requirements while maintaining data integrity and authentication.

Inventive Principle:
Principle #26Copying

3Reliability

If complete data packets are transmitted in wireless networks, then data integrity is ensured, but energy consumption increases

Engineering Contradiction:
Improvedata integrityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts only the essential authentication element (MAC value) from the complete data packet and transmits it separately. The receiver uses locally stored prediction models to reconstruct the original data without receiving the entire packet, thereby reducing the amount of data transmitted while maintaining authentication security.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the traditional mechanical approach of transmitting complete data packets with a computational approach. The receiver uses prediction models and MAC value comparison to verify data integrity, substituting physical data transmission with computational verification that consumes less energy.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS8576785B2Method of wireless communication using authentication information
Publication Date: 2013.11.05 ROBERT BOSCH GMBH
  • US8576785B2 patent drawing
  • US8576785B2 patent drawing
  • US8576785B2 patent drawing

AI summary

A data communication method includes providing a sender node having a data packet of information. The data packet includes at least one first field and a second field. The second field has content that is dependent upon actual content of the at least one first field. The content of the second field of the data packet is transmitted from the sender node to a receiver node. The receiver node is used to predict the actual content of the first field of the data packet. The receiver node is used to calculate the content of the second field of the data packet based upon the predicted content of the first field. The predicted content of the first field is confirmed to be equivalent to the actual content of the first field. The confirming step includes comparing the calculated content of the second field to the transmitted content of the second field.