Relay equipment-based security association, data transmission method, device and system

Abstract

The embodiment of the invention discloses a relay equipment-based security association, data transmission method, a device and a system. Certification association operation is carried out between a site and an access point via the relay equipment to obtain a first matching main key, and the first matching main key is the matching main key between the site and the access point. Further, the site uses the first matching main key via the relay equipment to carry out handshaking interaction operation negotiation with the access point to generate a first matching temporary key, the first matching temporary key is the matching temporary key between the site and the access point and is used for protecting data transmitted between the site and the access point. Thus, the problems that the work load of the relay equipment is added and the data transmission efficiency is influenced due to the fact that security association can not be carried out between the site and the access point when the relay equipment is added between the site and the access point can be solved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a relay device-based security association and data transmission method, device, and system. Background technique [0002] At present, the Institute for Electrical and Electronic Engineers (IEEE) standard organization is formulating the 802.11ah specification, and it is proposed that the network coverage area of ​​the AP (Access Point, access point) needs to reach 1000 meters. Due to the wide network coverage , within the originally planned network coverage, there may be a problem that the station cannot communicate with the access point. In order to solve the problem that the station cannot communicate with the AP, the 802.11ah specification proposes that the station can communicate with the access point through a relay device. communication. [0003] However, due to the addition of a relay device between the station and the access point, the ...

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Problems solved by technology

[0004] The present invention provides a relay device-based security association, data transmission method, device, and system to solve the problem that the existing relay device is added between the station and the access point, and the station cannot communicate with the access point. Security association, which increases the workload of relay devices and affects the efficiency of data transmission

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