Wireless access secret key management method and system

Abstract

The invention provides a wireless access secret key management method. The method comprises following steps of after an authentication secret key management server receives an enabled instruction, using the time point at when the enabled instruction is received as a start time point, and determining whether an external trigger instruction is received in a first preset time period; if not, generating a first wireless access authentication secret key, so as to enable wireless communication devices, to which a preset IP address belongs, to communication with each other through the first wireless access authentication secret key; and storing the time point at when the first wireless access authentication secret key is generated, using the stored time point at when the first wireless access authentication secret key is generated as a next start time point, and redetermining whether the external trigger instruction is received in the first preset time period. The authentication secret key management server generates the wireless access authentication secret key automatically, namely, the secret key is not controlled by men; and the secret key can be updated automatically, is convenient to modify and is safer and more convenient. The invention also relates to a wireless access secret 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-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 securit...

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