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Channel resource control method based on disassociation/deauthentication frame

A control method and channel resource technology, which is applied in the field of wireless communication, can solve the problems such as the decrease of communication blocking effect and the inability to completely block communication, so as to achieve stable communication blocking effect, improve information security, and reduce the effect of impact

Active Publication Date: 2015-02-04
INST OF INFORMATION ENG CAS
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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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  • Channel resource control method based on disassociation/deauthentication frame
  • Channel resource control method based on disassociation/deauthentication frame
  • 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 a disassociation / deauthentication frame. The method comprises the following steps that 1) a network card drive of blocking equipment is modified, so that the blocking equipment transmits an association / deauthentication frame at an interval which is not greater than a short interframe space; 2) the blocking equipment scans the ambient wireless local area network environment to obtain the MAC addresses of the access points APs working in a channel to be blocked and the MAC addresses of the station STAs; 3) the blocking equipment establishes a channel MAC address list including the MAC addresses of all access points AP to be blocked and the MAC addresses of the station STAs of the channel for each channel; and 4) the blocking equipment fills the disassociation / deauthentication frame with the MAC addresses in the MAC address list according to a framing rule, and then transmits the disassociation / deauthentication frame to the corresponding channel to be blocked. According to the channel resource control method, information security of security departments or regions is greatly improved, and the influence on the ambient electromagnetic environment is small.

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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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 CAS
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