Audio Carrier Frequency Rotation for Edge Device Security
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Solution Overview
Problem
Existing device management systems face challenges in securing communications between endpoint devices in distributed systems, particularly due to the susceptibility of edge devices to malicious attacks and limited resources.
Innovation Solution
Implementing a carrier frequency rotation scheme for audio communications between endpoint devices, which involves encoding, encrypting, and modulating data onto an audio carrier wave with dynamically changing frequencies to enhance security and reduce the risk of data compromise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional communication protocols are used between endpoint devices, then communication bandwidth is sufficient, but security against malicious attacks is compromised
Solution Approach 1:
The patent replaces traditional electronic/digital communication protocols with an acoustic communication system. Data is modulated onto audio carrier waves and transmitted through air using speakers and microphones, fundamentally changing the physical medium of communication from electrical signals to acoustic waves. This substitution provides inherent security benefits as acoustic transmissions are harder to intercept and analyze compared to traditional wireless protocols.
Solution Approach 2:
The system dynamically changes the frequency parameter of the audio carrier wave used for data transmission. By varying the carrier frequency over time, the system makes it difficult for malicious entities to intercept and decode communications, as they would need to continuously track and adapt to frequency changes. This parameter variation is implemented through modulation schemes that encode data onto different frequency components of the audio signal.
2Reliability
If audio carrier frequency is kept constant for communication, then power consumption is low, but security against interception is reduced
Solution Approach 1:
The system transitions from a static, constant-frequency audio carrier approach to a dynamic frequency modulation approach. The carrier frequency is continuously varied according to a rotation scheme, making the communication pattern unpredictable and secure against interception. This dynamic behavior requires additional processing power and energy consumption, but provides significant security improvements by preventing malicious entities from easily capturing and analyzing communications.
3Reliability
If data is transmitted without encoding and encryption, then processing speed is fast, but data security is compromised
Solution Approach 1:
The system performs encoding and encryption of data before modulation onto the audio carrier wave. This preliminary processing ensures that data is secured before transmission, making intercepted signals useless to malicious entities. The encoding process converts data into a format suitable for acoustic transmission, while encryption adds layers of security. Although this adds processing steps, the patent optimizes these operations to minimize their impact on overall transmission speed.
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
The solution effectively improves the security of communications across distributed systems by making it difficult for malicious entities to intercept and interpret audio carrier communications, while also reducing power consumption and improving communication bandwidth.
Implementation Method 1
modulating the encrypted data onto an audio carrier wave to obtain a modulated audio carrier
Data Source
AI summary
Methods and systems for managing operation of endpoint devices are disclosed. The operation of the endpoint devices may be managed by requiring that the endpoint devices use a communication management framework to selective send communications via network and audio interfaces. Additionally, the communication management framework may cause the endpoint devices to update the manner in which audio communications are used over time to distribute data. The updates to the manner in which the audio communications are used over time may reduce the likelihood of a malicious entity from injecting malicious communications and/or snooping audio communications between endpoint devices.