Connection establishing method, terminal and access point

Abstract

A method for link setup includes sending a first authentication message including a user identifier to an access point (AP). A second authentication message sent by the AP according to the user identifier is received and includes an EAP method request message and a ANonce of the AP. A first PTK is generated according to the ANonce, an SNonce, and a first MSK. A third authentication message is sent to the AP. The third authentication message includes an EAP method response message, the SNonce, and a first MIC that is generated according to the first PTK. A fourth authentication message is sent by the AP when it authenticates, according to a second PTK, that the first MIC is correct. The fourth authentication message includes an EAP-Success message, configuration information configured by the AP for the terminal, and a second MIC. The second MIC is authenticated according to the first PTK.

Description

technical field [0001] The present invention relates to the communication field, in particular to a connection establishment method, terminal and access point in the communication field. Background technique [0002] When a Wireless Fidelity (Wireless Fidelity, "WiFi" for short) terminal (Station, "STA" for short) securely connects to a WiFi access point (Access Point, "AP" for short), it needs to The standard 802.11 protocol completes the prescribed scanning, open authentication, association, 802.1x authentication (that is, Extensible Authentication Protocol (Extensible Authentication Protocol, referred to as "EAP") authentication), four-step handshake and other processes. Protocol, referred to as "IP") address allocation process. [0003] Specifically, generally, the STA can send a probe request frame to the AP, and according to the probe response returned by the AP, discover the AP and query the attributes and capabilities of the AP. Before this, the STA can also listen...

AI Technical Summary

Problems solved by technology

[0008] However, since the STA is entering the WiFi network for the first time, the WiFi network does not have the context information of the STA before, so the STA needs to complete the authentication, association, four-step handshake, IP address allocation and other processes with the AP and AS.

During the initial connection establishment process, there are many air interface message interactions between the STA and the AP, which takes a long time, which will not only increase the power consumption of the terminal, but also seriously affect the user experience.

Images