Wireless Transmission Security Using Interference Signal Masking
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Solution Overview
Problem
Wireless communication between devices is vulnerable to interception and lacks user-controlled encryption enhancements, making it difficult to secure sensitive data transmission.
Innovation Solution
Implementing a physical layer encryption technique using interference signals, such as noise or media content, to enhance security by making intercepted data unreadable to unauthorized parties, independent of digital encryption methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital encryption methods are used for wireless communication, then security is improved, but users have no control over encryption and intercepted data can still be read if cryptographic keys are obtained
Solution Approach 1:
The patent segments the encryption process into two independent layers: digital encryption (handling data content) and physical layer encryption using interference signals (handling signal transmission). This segmentation allows users to independently control the security level by selecting different interference signal types without affecting the digital encryption layer, thus providing user control while maintaining security.
Solution Approach 2:
The patent combines two different encryption approaches into a composite security system: traditional digital encryption and physical layer encryption using interference signals. This composite approach ensures that even if one layer is compromised (e.g., cryptographic keys are obtained), the other layer (interference signals) continues to protect the communication, enhancing overall security beyond what digital encryption alone can provide.
2Reliability
If interference signals are transmitted to provide security, then security is improved, but the complexity of the communication system increases
Solution Approach 1:
The interference signals are generated using media content that is already available to the user device (such as video or audio content being played). This self-service approach eliminates the need for separate complex signal generation systems, as the device utilizes existing resources to create the interference signals, thereby providing enhanced security without proportionally increasing system complexity.
3Reliability
If higher resolution media content is used for interference signals, then security is improved, but the complexity and resource requirements of the interference signal increase
Solution Approach 1:
The patent implements dynamic adjustment of interference signal characteristics based on the selected security level. When a higher security level is chosen, the system increases the complexity of the interference signal (e.g., using higher resolution video content). When a lower security level is selected, the system reduces interference signal complexity. This dynamic approach allows the system to optimize between security and resource consumption based on user needs.
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
This approach adds an additional layer of security, making intercepted data difficult to interpret, even if cryptographic keys are obtained, thereby protecting sensitive information.
Implementation Method 1
The interference signal may be a physical waveform that is transmitted at the same time as another physical waveform carrying data for the wireless communication signal
Data Source
AI summary
An interference signal may be used to add a layer of security to a wireless communication. The interference signal may comprise media content, such as video, audio, text, or other content available to a user device via a media service. The wireless communication may be used to transmit a data signal, which may include sensitive data. The interference signal may be filtered to process the data signal.