Wireless Access Control via Embedded Authentication Codes
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies in access control, leading to resource occupation by unqualified terminals and increased air interface overhead, particularly in cluster communication modes, where authentication is not effectively managed in direct and relay modes.
Innovation Solution
A wireless system access control method where the sender terminal actively generates and sends an authentication code with control-type data, combined with a CRC check code, allowing the receiver to perform real-time authentication, thereby preventing unqualified terminals from accessing resources and enhancing communication security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system uses active authentication approach where the system interacts with the terminal multiple times, then authentication reliability is improved, but air interface overhead increases
Solution Approach 1:
The terminal pre-calculates and embeds the authentication code into the control-type data message before transmission. This preliminary action eliminates the need for multiple separate authentication interactions, reducing air interface overhead while maintaining authentication reliability through the integrated authentication mechanism.
2Productivity
If the system records terminal authentication state permanently or for a period of time, then authentication efficiency is improved, but security decreases as unqualified terminals can occupy resources by setting the same ID as qualified terminals
Solution Approach 1:
The receiver terminal actively verifies the authentication code embedded in each incoming control-type data message by recalculating it using the same algorithm and comparing it with the received code. This feedback mechanism ensures that each message is independently authenticated, preventing unqualified terminals from occupying resources by copying IDs, while maintaining high authentication efficiency through real-time verification.
3Device complexity
If no access control solution is provided in direct mode operation and relay mode, then system complexity is reduced, but security and resource protection are compromised
Solution Approach 1:
The authentication mechanism using embedded authentication codes in control-type data messages is designed to be universally applicable across different communication modes including cluster mode, direct mode operation, and relay mode. This multi-functional approach provides consistent security and resource protection across all modes without requiring separate access control solutions, thereby maintaining security while avoiding unnecessary system complexity.
Data Source
AI summary
A wireless access control method and device are provided. A method applied to a sender terminal includes: generating, by a terminal, an authentication code according to a protocol negotiated with a receiver when sending control-type data, combining, by the terminal, control-type data, the authentication code and a corresponding CRC check code to generate a message, and sending, by the terminal, the message to the receiver, such that the receiver can perform a CRC check on the received message, generates an authentication code according to the negotiated protocol if the CRC check is successful, determines whether the generated authentication code is the same as the received authentication code, if so, analyzes the received control-type data, and if not, discards the received control-type data.