In the modern world, it is impossible to overestimate the importance of verbal communication between people. Increasing the value of the speech information leads to the necessity of its protection. The need to protect the large volume of voice information in a variety of government and commercial organizations in the face of rapid growth interception on various technical channels of information leakage hardware capability determines the use of complex remedies having different structural and functional reliability. Therefore, as the object of study of this work chosen means of active protection of speech information.
The subject of research are the control procedures, and check the status of active protection of voice information system. The aim of the study is to improve the security of voice data leakage through technical channels by providing the structural reliability of the active protection system. Submitted by the objective function of research in the form of the functional dependence of the various elements of the reliability indicators, time-frequency characteristics of signal propagation environments, vector signal / noise ratio. In this regard, there is a problem of reliability study of the effect elements of technical protection systems on a secure voice information circulating in such systems.
In order to explore the nature of the influence of reliability elements active protection system on a generic indicator of the reliability of the entire system with access to the vulnerability factor in the approaches used graph theory, information theory, probability theory and reliability theory. Structural-functional model of voice information protection system was determined to solve the problem. The influence of the technical state of the remedies on voice data defended in case of need for protection. Get ideas for calculating the index vulnerability of the protection system. Reflected connection reliability performance protection with performance security of the system. The materials presented mechanisms of calculation of indicators of reliability by taking into account the state of the remedies that make up the complete system. Results of the study showed the need for a comprehensive approach to assessing the security of voice data.
The study suggests an approach to the definition of the complex index of the vulnerability of the system of speech information processing, taking into account indicators of the structural and functional elements of the system reliability.