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A network security defense method

A network security, central node technology, applied in the field of network security, can solve the problems of network data transmission damage, exhaustion of receiving sub-nodes, influence, etc., to achieve the effect of resisting interception and illegal tampering, and improving security

Active Publication Date: 2021-11-05
SHENZHEN FRIENDCOM TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the presence of malicious nodes or illegal intruders in the network, they have a very serious impact on the transmission of network data
For example, malicious nodes or pseudo-nodes may generate a series of attacks such as replayable, denial of service (DoS), witches, etc. The child node is no longer responsive or capable of receiving

Method used

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  • A network security defense method
  • A network security defense method
  • A network security defense method

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Experimental program
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Embodiment 1

[0041] Please refer to figure 2 , the present invention proposes a network security defense method, which can be applied to data information collection in a wireless communication environment, and can effectively defend against illegal intruders or malicious nodes by performing security defense on the serial number of the data of the network nodes during transmission. etc. aggressive behavior. The network security defense method is described in detail below.

[0042] When the central node needs to transmit data to the sub-nodes, it will perform sequence number protection processing on each transmitted data packet or data frame, thereby improving data security and accuracy. Specific steps are as follows:

[0043] Step S100: the central node assigns a serial number to the data frame and sends the serial number to each receiving child node.

[0044] Before sending the data frame, the central node will first assign a serial number to each data frame, and send the assigned seri...

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Abstract

The invention discloses a network security defense method, which is applied to a central node and multiple sub-nodes communicating with the central node, comprising: the central node allocates a serial number for a data frame and sends the serial number to each receiving sub-node; The digits of each bit are inserted into the data field of the data frame according to the preset insertion rules to obtain the transmission data frame, and the transmission data frame is sent to at least one receiving sub-node; after the receiving sub-node receives the transmission data frame, according to the The preset insertion rule extracts the serial number; authenticates the extracted serial number and retains the transmission data frame after the authentication is successful. The invention inserts the serial number into the data field of the data frame according to preset insertion rules to achieve the purpose of submerging the serial number, and can effectively resist the interception and illegal tampering of the transmitted data by illegal intruders, thereby improving the security of data transmission.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a network security defense method. Background technique [0002] For the data information collection network based on the wireless communication environment, in the process of data transmission, in order to enable the receiving sub-node to receive the correct data, the sending node will send data for each data frame (also called data packet or datagram) Text) to assign a sequence number, through which the receiving sub-nodes can prevent data packet retransmission, sequence reversal, and even data packet loss when receiving data. [0003] However, due to the presence of malicious nodes or illegal intruders in the network, they have a very serious impact on network data transmission damage. For example, malicious nodes or pseudo-nodes may generate a series of attacks such as replayable, denial of service (DoS), witches, etc. The child node is no longer responsive or capa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/123H04L63/1441H04L2209/608
Inventor 刘振波李登峰张宇倩
Owner SHENZHEN FRIENDCOM TECH DEV