RF Characterization for Network Transaction Authorization
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Solution Overview
Problem
Traditional security techniques for electronic networks, such as username/password requirements and encryption, are insufficient in providing strong security for sensitive information and transactions, as they do not effectively authenticate devices and locations.
Innovation Solution
A system and method that authorize network transactions based on radio frequency (RF) characterization of a device's location, using a communication device to detect and identify RF sources, determine signal strength and error rates, and compare these characteristics with approved profiles stored in a location server to authenticate and authorize transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional security techniques (username/password, encryption) are used, then ease of operation is maintained, but security reliability is insufficient
Solution Approach 1:
The system performs preliminary RF environment characterization and creates location profiles before transactions occur. The RF fingerprinting data is collected and stored in advance, allowing the system to verify device location authenticity during transactions without requiring complex user input or changing the ease of operation.
Solution Approach 2:
The patent introduces RF environment characterization as an intermediary verification layer between the user and the transaction system. Instead of directly relying on username/password, the system uses RF fingerprints as a mediator to authenticate device location, enhancing security while maintaining operational simplicity.
2Reliability
If RF characterization is used to authenticate device location, then security reliability is improved, but device complexity increases
Solution Approach 1:
The communication device itself performs the RF environment characterization and generates its own location profile using its built-in receivers. The device self-authenticates by comparing its current RF fingerprint against stored profiles, eliminating the need for external complex authentication hardware or manual configuration.
Solution Approach 2:
The patent leverages existing multi-functional communication devices that already possess multiple receivers for various communication purposes. These same receivers are utilized for RF fingerprinting and location authentication, avoiding the need for dedicated complex authentication hardware and reducing overall device complexity.
3Measurement precision
If multiple RF sources are monitored for location verification, then measurement precision of location is improved, but use of energy increases
Solution Approach 1:
The system monitors multiple RF sources simultaneously to establish a comprehensive location profile, but during transaction verification, it only needs to check whether the current RF environment matches the stored profile within acceptable parameters. This partial verification approach achieves sufficient location precision without continuously expending maximum energy on all receivers.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances network security by ensuring that only authorized devices and locations can perform transactions, reducing the risk of fraudulent activities by using RF characterization to verify the authenticity of devices and their locations, thereby improving transaction security.
Implementation Method 1
A communication device may be used to characterize a radio frequency (RF) environment at a location of the communication device. The RF characterization may be based on information from a plurality of receivers within the communication device.
Data Source
AI summary
Aspects of a method and system for authorizing network transactions based on radio frequency (RF) characterization of a device's location are provided. In this regard, whether to approve a communication device to perform a network transaction may be determined based on results of a comparison between a radio frequency (RE) characterization of a location of the communication device and one or more approved RF characterizations. The RF characterization may be based on information from a plurality of receivers within the communication device. The one or more approved characterizations may be stored in the network device. The RF characterization may indicate a quantity of RF sources detected and identified by the communication device at the location. The RF characterization may indicate signal strength of signals received from RF sources detected and indentified by the communication device at the location.