METHOD OF MODELING OF "MAN IN THE MIDDLE" TYPE NETWORK ATTACK Russian patent published in 2018 - IPC H04W16/22 G06N7/06 G06N7/04 H04L12/00 

FIELD: radio engineering, communication.

SUBSTANCE: method of modelling a network attack of the type "man in the middle" consists in setting and recording the parameters characterizing the topology of the computer communication network (CCN), the frequency and intensity of the impact into the memory cells of the personal computer (PC), creating a physical model of the CCN direction, modelling the functioning of the CCN, simulating the effects on communication systems, measuring, remembering the indicators characterizing the main parameters of the effect, making corrections (changes) in the physical models of objects, measuring, counting, recording to the cells of the operational PC memory the basic values of the characteristics of the simulated impacts, characterized by setting parameters that characterize the process of packet transfer in a unified telecommunication network (UTN), creating a physical model for the direction of the CCN, an UTN fragment comprising two PCs simulating the CCN network nodes, a router controlled by a PC, simulating an UTN fragment, a router controlled by a PC simulating a network attack on the "man in the middle" CCN, installing the required software for running the PC in the UTN, specifying IP addresses, setting the required software and configuring a router controlled by a PC that simulates an UTN fragment and a control computer, a PC running by the router, replaces the transmitted packets and provides a simulated possible error probability, delay and jitter in the normal operation of the UTN, installing the required software and configuring the router, a controlled computer simulating a destructive "man in the middle" effect, and a control PC, the PC controlling the router, replaces the transmitted packets, or delays transmitted packets in order to disrupt the communication session, while modelling the operation of the CCN using the network resource of the UTN without the "man in the middle" network attack, transmitting the given information sequence and randomly changing the transmitted sequence and delaying transmitting, simulating the transmission to the UTN, in the router simulating the UTN fragment, simulations are performed for different transmission rates, different software and various UTN fragments.

EFFECT: increased reliability of results evaluation of modelling a network attack of the man in the middle type, by taking into account the distribution of transmitted packets in a unified telecommunication network and estimating the necessary resource for performing an effective network attack of man in the middle type.

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