Beacon-Device RSSI Correlation for Secure Connection Verification

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional technologies fail to determine the security of network connections between wireless beacons and user computing devices, making them vulnerable to unauthorized transactions and security breaches.

Innovation Solution

A method that correlates received signal strength indicator (RSSI) values over time between merchant beacon devices and user computing devices to establish a secure connection, involving the transmission and pairing of RSSI data packets to verify correspondence and ensure network security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional network connection methods are used between wireless beacons and user computing devices, then device connectivity is established, but security verification is insufficient

Engineering Contradiction:
Improvenetwork connection securityVSAvoidsecurity verification process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary RSSI measurement and correlation verification before allowing any transaction to occur. By measuring RSSI values from both devices and correlating them in advance, the system establishes security assurance before the actual financial transaction, preventing unauthorized transactions without requiring complex continuous monitoring during the transaction process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces RSSI correlation as an intermediary verification mechanism between the beacon and user device. Instead of directly trusting the connection, the system uses RSSI value correlation as a mediator to verify security, adding a layer of verification that doesn't require complex cryptographic protocols or additional hardware.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If RSSI correlation verification is implemented, then network security is improved, but additional data transmission and processing is required

Engineering Contradiction:
Improveconnection security verificationVSAvoiddata transmission overhead
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system extracts only the essential RSSI value information from the full communication data stream. By focusing solely on the RSSI measurements and their correlation, the system avoids transmitting and processing unnecessary communication overhead, authentication tokens, or encryption data, thereby minimizing information loss while achieving security verification.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the verification parameter from traditional cryptographic authentication to RSSI value correlation. This parameter change allows security verification using simple signal strength measurements that are already being exchanged during normal communication, eliminating the need for additional specialized data transmission protocols.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If third party devices can be easily connected, then device accessibility is improved, but security vulnerability increases

Engineering Contradiction:
Improvedevice connection accessibilityVSAvoidsecurity vulnerability to unauthorized transactions
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system continuously monitors and compares RSSI values from both devices, providing feedback about the security status of the connection. When the RSSI values from the beacon and user device do not correlate properly, the system generates a security alert or blocks the transaction, creating a feedback mechanism that prevents third-party devices from accessing the system without detection.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3143787B1Verifying a secure connection between a network beacon and a user computing device
Publication Date: 2018.09.26 GOOGLE LLC
  • EP3143787B1 patent drawingFigure 1
  • EP3143787B1 patent drawingFigure 2
  • EP3143787B1 patent drawingFigure 3

AI summary

A beacon device establishes a network connection with a user computing device. The beacon device determines the received signal strength indicator of the user computing device (the "reverse RSSI") and transmits it to the user computing device, which determines the received signal strength indicator (the "RSSI") of the beacon device, and saves the RSSI with the reverse RSSI as a data pair. At a later time, the beacon device determines a subsequent reverse RSSI and transmits it to the user computing device, which determines a subsequent RSSI, and saves the subsequent RSSI with the subsequent reverse RSSI as a data pair. If the user computing device determines a correspondence in the changes of the RSSI values and reverse RSSI values in the two data pairs, a transaction between the two devices is allowed. If correspondence does not exist, then the user computing device terminates the network connection.