Proactive defense method for call interception in telecommunication network

Abstract

The invention belongs to the technical field of communication, and particularly relates to a proactive defense method for call interception in a telecommunication network. Firstly, a logic route set is defined on a network topology and protocol layer, a dynamic mapping mechanism for a visible logic route set and a secrete real route set is built, and a media path subset comprising a plurality of physical channels and providing a channel hopping mechanism is provided for each telephone call; and then, a media stream fragmentation technology and the channel hoping mechanism are used comprehensively for discrete transmission of the media information, and the media streams being easy to find the paths and intercept and being recombined in sequence in the network view can be converted into irregular 'data puzzles' which have disordered paths and data packages, and are difficult to intercept completely and recombine for a third party. Furthermore, the method can be combined with a content encryption manner, so as to form a binary encryption mechanism that allows the media path to be collaborative with the media content, so that the information security performance of telephone call is further enhanced.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an active defense method against call wiretapping of a telecommunication network. Background technique [0002] Call wiretapping is one of the main security threats faced by public telecommunication networks and private telephone networks. The most direct means to implement call eavesdropping is to connect and lead the call line, intercept the line signal and use decoding and decryption technology to restore the communication content, so as to achieve the purpose of eavesdropping. At present, my country's public telecommunications network does not provide preventive measures against call eavesdropping, and mainly relies on telephone users themselves to increase their awareness of confidentiality to prevent risks. In the private telephone network of the government, military and other departments, the encryption telephone terminal (secret telephone) is mainly use...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the static and easy-to-locate problems of encrypted transmission of telephone communication content existing in the prior art, and proposes an active defense method for wiretapping of telecommunication network calls

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