Ensuring the integrity of information at the network level of multiservice communication networks

DOI №______

Abstract

In the article the method of ensuring the integrity and availability of information on the basis of technologies of the network level of multiservice communication networks is developed. The use of the method of parallel transmission and processing of information at the point of reception is shown to ensure the integrity of the information, maintaining the QoS indicators of high-speed applications of communication networks operating in real time. The decision rule is found on the output of the decoder when modifying the message as a result of the attacker’s attack in the appropriate connection. The functional scheme of the decoding device is presented. Limitations on the effectiveness of information have been introduced.
The calculation formula and results of the evaluation of the integrity of the information are given. It is shown as the confirmation of theoretical results of the estimation of the probability of the integrity of information on the output of the decoder to use the method of statistical simulation. The output data of the simulation algorithm are given.
It is shown that the method of statistical simulation is approximate. For this method, the calculation error is determined. The number of tests has been determined to provide a given absolute or relative error of calculation. The results of simulation modeling, which confirm theoretical calculations, are presented.
The resulting probability of ensuring the integrity of the information is given, assuming that the influence of offenders on each connection is an independent event.
The rule of decision for estimating the integrity of the information is proposed.
It is shown that the application of the method of information reservation and reservation of infrastructure elements allows to provide the availability and integrity of information in multiservice networks of communication with QoS.

Keywords: probability of modification; availability of information; probability of integrity of information.

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