Self-Generating Switch Verification Control Against Replay Attacks
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Solution Overview
Problem
Conventional self-generating switches lack sufficient security measures in their control messages, making them vulnerable to unauthorized access and duplicate attacks.
Innovation Solution
A self-generating switch system that includes a processor, memory, generator, rectification module, energy storage module, and wireless communication module, which generates and verifies control messages using a current verification identifier that transforms based on a preset rule, ensuring that only authorized actions are executed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional self-generating switches send control messages with simple button and switch information, then the device complexity is low and ease of operation is maintained, but security reliability is insufficient
Solution Approach 1:
The patent applies preliminary action by pre-establishing a verification identifier transformation rule between the self-generating switch and receiving end before actual control operations. This rule is configured in advance and stored in the system, enabling security verification to be performed automatically during message transmission without adding complex real-time processing. The verification identifier is generated and transformed according to this pre-set rule, ensuring security reliability while maintaining simplicity in the control message structure.
2Reliability
If verification identifier transformation rules are implemented to prevent duplicate attacks, then security reliability is improved, but the processing time and energy consumption increase
Solution Approach 1:
The patent applies parameter changes by transforming the verification identifier according to a predetermined transformation rule that changes the identifier parameters between transmissions. Instead of complex cryptographic operations, the system uses simple parameter transformation (such as incrementing or shifting bits) on the verification identifier. This approach significantly reduces processing time and energy consumption while effectively preventing duplicate message attacks, as the receiving end can quickly verify whether the transformed identifier matches the expected pattern.
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 system effectively prevents duplicate message attacks by verifying the relationship between current and historical verification identifiers, enhancing security and ensuring only legitimate control events are executed.
Implementation Method 1
the moving portion of the generator being directly or indirectly driven by the key, such that the generator generates a first induced voltage; and if the button undergoes a bouncing manipulation action, the reset component driving the moving portion of the generator under an action of the reset force, such that the generator generates a second induced voltage
Data Source
AI summary
A switch control method, a receiving end control method, a self-generating switch, and a receiving end, the switch control method comprising: the processor sending a corresponding current control message to a receiving end via the wireless communication module, such that the receiving end verifies whether a relationship between a current verification identifier in the current control message and a stored historical verification identifier matches a pre-set transformation rule of the current verification identifier, and executing a control event corresponding to current manipulation information when the relationship matches the transformation rule.