A channel resource control method based on disassociation/deauthentication frame

A control method and technology of channel resources, applied in the field of wireless communication, can solve the problems of decreased communication blocking effect, unable to completely block communication, etc., and achieve the effect of stable communication blocking effect, improving information security, and reducing impact.

Active Publication Date: 2018-03-16
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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Problems solved by technology

The present invention is a signaling interference method, which aims to solve the problem that when the traditional signaling interference method of sending de-association / de-authentication frames has a large number of APs or STAs to be blocked, the communication blocking effect drops sharply, and the communication cannot be completely blocked. shortcoming

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  • A channel resource control method based on disassociation/deauthentication frame
  • A channel resource control method based on disassociation/deauthentication frame
  • A channel resource control method based on disassociation/deauthentication frame

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Embodiment Construction

[0047] The present invention is signaling interference, but it is different from the traditional signaling interference method of sending de-association / de-authentication frames, but a channel occupancy method of sending de-association / de-authentication frames, which combines traditional de-association / de-authentication blocking and the advantages of channel occupancy blocking.

[0048] This method utilizes the CSMA / CA mechanism of the 802.11 protocol. Under the CSMA / CA mechanism, the sender needs to monitor the channel state before sending. If waiting for a SIFS (Short Interframe Space, short interframe space) or DIFS (DCF Interframe Space, distributed inter-frame interval) (for example: you need to wait for DIFS before sending a data frame, and you need to wait for SIFS before sending an ACK frame), if the channel is still idle, start a randomly generated backoff time timer, and the timer will be decremented to zero During the process, if the channel is still free, it will s...

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Abstract

The invention discloses a channel resource control method based on de-association / de-authentication frame. This method is as follows: 1) modify the network card driver of the blocking device, so that the blocking device can send association / deauthentication frames no greater than the short inter-frame interval SIFS; 2) the blocking device scans the surrounding wireless LAN environment, and obtains the 3) The blocking device establishes a channel MAC address list containing the MAC addresses of all access points APs and terminal STAs to be blocked for the channel for each channel; 4 ) For each channel to be blocked, the blocking device fills the MAC address in the channel MAC address list of the channel into the disassociation / deauthentication frame according to the framing rules and sends it to the corresponding channel to be blocked. The invention greatly improves the information security of secret-related units or regions, and has little influence on the surrounding electromagnetic environment.

Description

technical field [0001] The invention relates to a channel resource control method based on a de-association / de-authentication frame, and belongs to the technical field of wireless communication. technical background [0002] Wireless local area network, or WLAN (Wireless LAN), is a network that uses wireless transmission media for communication. Because WLAN has the characteristics of flexible deployment, easy to use, and can well support the mobile Internet needs of portable terminals such as notebooks, tablet computers, and mobile phones, it is rapidly popularized in the commercial market. While being widely used, the security of WLAN has also attracted the attention of researchers. WLAN not only faces the security loopholes faced by traditional wired networks, but its openness also brings more security risks. [0003] The wired network uses twisted pair as the transmission medium, and the boundary of the transmission signal is controllable. However, WLAN utilizes 2.4GH...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/00H04W74/08
CPCH04L63/0876H04W12/00H04W74/002H04W74/0808H04W48/16H04W72/20
Inventor 朱大立朱海涛祁峰冯维淼范伟
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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