Mobile network active defense method and device

Abstract

The invention relates to a mobile network active defense device, which comprises a dynamic link selection module, an enhanced transmission module, an active trapping module and a dynamic receiving module, and is characterized in that the dynamic link selection module randomly selects a network link reaching a destination end at a source end of a mobile network; the enhanced transmission module randomly selects a plurality of links at the source end of the mobile network to perform redundant transmission so as to prevent data tampering attacks in the transmission process; the active trapping module sends data with specific spoofing to a specific link at a mobile network source end, traps man-in-the-middle attacks to steal the data, analyzes, detects and locates leaked data through public information, and discovers a suspicious link; and the dynamic receiving module performs validity verification and information extraction on the received data. According to the method, the diversity anddynamics of mobile network transmission can be realized, the weaknesses of static and passive defense of the mobile network are changed, the uncertainty of the mobile network is increased by changingthe link and data, the attack cost and price are improved, and the eavesdropping attack link can be actively detected.

Description

technical field [0001] The invention relates to a mobile network protection method and device, in particular to a mobile network active defense method and device, belonging to the field of information security. Background technique [0002] The mobile network is the third wave of the development of the world's information industry after computers and the Internet. With the popularization of mobile communication technology and mobile applications, mobile networks and mobile smart devices have penetrated into all aspects of social life. However, the characteristics of openness and structural complexity of the mobile wireless network make it face increasingly prominent security threats. Mobile networks have become the target of various malicious attacks. Typical high-threat attacks include network eavesdropping, information tampering, phishing, and so on. [0003] Since wireless networks have no physical medium, information is transmitted in the form of radio waves during t...

AI Technical Summary

Problems solved by technology

[0005] Traditional network security defense methods cannot be applied in open physical environments such as mobile networks, and encryption methods cannot cope with the complex and changeable network characteristics of mobile communications

Due to the lack of security policies for dynamic protection, the vulnerability of mobile networks has been exposed to attackers for a long time

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