Wireless access key management method and system

Abstract

The present invention provides a wireless access key management method, which includes the following steps: After receiving the start command, the authentication key management server takes the time when the start command is received as the start time, and judges that the start time is within the first preset time period Whether an external trigger instruction is received; if not received, then generate a first wireless access authentication key, so that the wireless communication devices to which the preset IP address belongs communicate according to the first wireless access authentication key; Storing the generation time of the first wireless access authentication key, and using the stored generation time of the first wireless access authentication key as the next start time, repeatedly judging whether an external trigger command is received within the first preset time period A step of. In this method, the authentication key management server automatically generates the wireless access authentication key, and the key cannot be mastered by people; and the key can be updated automatically, which is convenient for modification, and is more secure and convenient. It also relates to a wireless access key management system.

Description

technical field [0001] The invention relates to a wireless access key management method and system. Background technique [0002] Wireless network technology provides users with better mobility, flexibility and scalability, so it is widely used. [0003] The vigorous development of urban rail transit has put forward higher requirements for the efficiency, safety and reliability of train operation. Therefore, in the existing urban rail transit control systems, the vehicle-to-ground data communication system (DCS system, Data Communication System, data communication system) is used to transmit control information. [0004] Since the air interface of the DCS system is in an open space, it is easy to be attacked by malicious users. When a malicious user attacks the network, or a malicious user successfully accesses the network and pretends to be a valid user to release false information, it is very easy to cause the train to run. security incident. In order to ensure the secu...

AI Technical Summary

Problems solved by technology

[0005] The wireless access authentication keys of the original DCS system are all artificially set and injected into the wireless communication equipment through the key injection device. Security accidents occur frequently, so new requirements are put forward for the DCS system - security requirements for wireless communication

Images