A wireless network attack detection method based on mathematical morphology

Abstract

The invention discloses a wireless network attack detection method based on mathematical morphology. The link quality indicator parameters of the nodes are sequentially drawn on the two-dimensional coordinate system to form a ladder curve; the erosion operation in mathematical morphology is used to gradually erode the ladder curve of each node, and the particle fraction of each erosion is calculated at the same time; Calculate the cumulative distribution function of all particle fractions of each node and draw the obtained cumulative distribution function on a two-dimensional coordinate system to obtain a particle distribution step curve; according to the obtained particle distribution step curve of each node, it is judged in real time whether the node is affected by attack. The invention can monitor the attack on the wireless network in real time, has high security, and has a simple calculation method, reduces the detection cost, and can be widely used in the security monitoring field of the wireless network.

Description

Technical field [0001] The invention relates to the field of network attack detection, in particular to a wireless network attack detection method based on mathematical morphology. Background technique [0002] At present, the method usually adopted to solve the security problem of wireless sensor network is encryption or authentication. Encryption can ensure that even if the attacker obtains the transmitted ciphertext message, he cannot crack the plaintext message, while authentication can ensure that the message comes from a legitimate node and verify whether the message has been modified. However, with encryption methods, key distribution often consumes more energy, has low scalability and adaptability, and requires too much deployment cost and computational overhead. However, with authentication methods, nodes have limited computing power and shared keys are relatively fragile. . In general, the encryption or authentication methods in the current technology are used to ensu...

AI Technical Summary

Problems solved by technology

However, with the encryption method, the distribution of the key often consumes a lot of energy, the scalability and adaptability are low, and the required layout cost and calculation overhead are too large. However, with the authentication method, the computing power of the nodes is limited, and the shared key is relatively fragile.

Generally speaking, using encryption or authentication methods in the current technology to ensure the security of data transmission has high computational complexity and energy consumption, and high system cost, and the above two methods cannot realize the detection of intrusion attacks. When a "spy" node appears in a wireless sensor network, the attack of this node cannot be monitored in real time, so its security is limited

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