Asynchronous IoT Communication for Secure Low-Power Data Transfer
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Solution Overview
Problem
Existing IoT platforms face security and power consumption issues due to their reliance on synchronous circuits, which can lead to predictable data transmission and increased computing pressure on central processing units.
Innovation Solution
The implementation of an asynchronous circuit-based IoT system with a central control device and application devices that use asynchronous communication units and synchronous-asynchronous interfaces for data transmission, enabling secure and efficient data exchange without a global clock, and scheduling encryption operations to maintain constant power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synchronous circuits are used for data transmission in IoT platforms, then data transmission is predictable and easy to control, but security is compromised and power consumption increases
Solution Approach 1:
The patent inverts the traditional synchronous communication approach by implementing asynchronous communication between the central control device and application devices. This inversion makes data transmission unpredictable to attackers while maintaining reliable communication through handshake protocols, thereby improving security without excessive power consumption
Solution Approach 2:
The patent changes the temporal parameters of data transmission by eliminating fixed clock cycles and using event-driven communication. Transmission timing becomes variable and unpredictable, preventing timing-based attacks while the handshake mechanism ensures data integrity and reliability
2Reliability
If synchronous circuits with global clock are used, then device complexity is reduced and coordination is simplified, but security vulnerabilities increase due to predictable transmission patterns
Solution Approach 1:
The patent introduces handshake signals as intermediary elements between the central control device and application devices. These intermediaries coordinate asynchronous communication without requiring complex synchronization mechanisms, simplifying the overall system while enhancing security through explicit acknowledgment protocols
3Reliability
If encryption operations are performed without scheduling, then data security is maintained, but power consumption varies and becomes predictable
Solution Approach 1:
The patent implements periodic scheduling of encryption operations with fixed time intervals regardless of data arrival timing. This periodic execution makes power consumption predictable and uniform, preventing attackers from inferring information through power analysis while maintaining continuous encryption security
Solution Approach 2:
The patent performs encryption operations in advance or schedules them proactively rather than reactively. By pre-scheduling encryption tasks, the system ensures security is maintained while power consumption patterns remain predictable and uniform, eliminating the correlation between data processing intensity and power usage
Data Source
AI summary
Disclosed is a system, central control device, an application device for the Internet of things and communication methods applied to the Internet of Things system. The Internet of Things includes the center control and a plurality of application devices, wherein the central control device includes: a central control unit configured to perform a central control function of the central control device under control of a first clock signal; an asynchronous communication unit configured to perform data communication between the central control device and a plurality of application devices in the Internet of Things by using an asynchronous circuit; a synchronous-asynchronous interface configured to perform data transmission between the central control unit and the asynchronous communication unit.