Method and device for managing communication channel
A technology for managing communication and communication channels, which is applied in the field of managing communication channels, can solve problems such as client attacks, system crashes, and network connection interruptions, and achieve the effects of preventing forgery and replay and improving security
Pending Publication Date: 2021-11-05
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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- Description
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Problems solved by technology
When the attacker forges the information related to the communication channel in the Beacon frame and replays it, it will cause an attack on the client connected to the WiFi network
For example, after the client receives information about the malformed communication channel in the Beacon frame, the network connection may be interrupted or the system may crash due to data parsing errors
For another example, the client receives forged communication channel-related information in the Beacon frame and executes wrong instructions to switch channels, resulting in connection interruption or man-in-the-middle attacks
Method used
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[0032] The technical solutions provided in this specification will be further described in detail through the drawings and embodiments below. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings. It should be noted that, in the case of no conflict, the embodiments in this specification and the features in the embodiments can be combined with each other.
[0033] figure 1 It is a schematic diagram of an implementation scenario of an embodiment disclosed in this specification. Such as figure 1 shown in figure 1In the implementation scenario, a wireless AP device 101 and multiple clients 102 are included. When the wireless AP device 101 needs to manage the communication channel (for example, switch channels), in order to notify the connected ...
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The embodiment of the invention provides a method and device for managing a communication channel. A specific embodiment of the method is executed through wireless access point (AP) equipment. The method comprises the following steps: constructing an original management frame carrying a target information element at a wireless access point (AP) device end, wherein the target information element comprises an information element related to communication channel management; and under the condition that it is determined that there is a client connected to the AP device, for each client connected to the AP device, setting a target address of the constructed management frame as an MAC address of the client, and encrypting information in the target information element by using a key corresponding to the client; and then, sending the set address and the encrypted management frame in the WiFi network.
Description
technical field [0001] The embodiments of this specification relate to the field of computer technologies, and in particular, to a method and device for managing communication channels. Background technique [0002] With the development of wireless communication, more and more devices are connected to the network through WiFi to realize intelligent functions. The openness of WiFi communication provides convenience for terminal equipment to connect to the wireless network, and also provides an opportunity for attackers. Attackers can forge and replay any frame on the wireless network, which poses a great threat to user information security. For example, a Beacon frame, as a beacon frame of a wireless AP (Wireless Access Point, wireless access point), is usually transmitted in clear text, and anyone can monitor and forge it. When the attacker forges the information related to the communication channel in the Beacon frame and replays it, it will cause an attack on the client ...
Claims
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IPC IPC(8): H04W12/03
CPCH04W12/03H04W12/041H04W84/12H04W12/50
Inventor 曹鸿健张婉桥黄琳简云定伏伟刘宇佳
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD