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A method of information leakage channel security estimating based on the test speech signal envelope cross-correlation analysis is proposed and its includes: test signal generating and extracting its envelope, emitting and measuring in a leakage channel, extracting the resulting signal envelope, calculating the correlation coefficient between the original and received envelopes, and comparing with a threshold value. A metod for extracting a low-frequency signal envelope using the Hilbert transform is shown. A description of the cross-correlation analysis based on the Pearson correlation coefficient is given. The leakage channel simulation modeling, formation and measurement of the test signals was performed in the MatLab. The obtained results confirm the greater efficiency of using the envelope compared to the original signal, and demonstrate the speech signals advantage over harmonic signals as test signals for assessing the information leakage channel security.

This paper describes the simulation of technical information security hacking by generating a series of numeric code selection and next hacking attempts time. Based on simulated data direction and statistical series of hacking proposed methodology for the analysis of the current information security operating conditions. Demonstrates the possibility of modelling process for technical information security hacking and evaluation of such important security parameters, hacking probability, financial investments, hacking time and attempts for technical information security and in time correction of checked technical information security. The evaluation of information security parameters is based on well-known at the time hacking parameters. In operation technical information security process new information about hacking attempts is generated (hacking directions and also parameters of additional hacking attempts) and in this case parameters and security conditions must be corrected in process. After conditions evaluation and information security parameters defining its can be compared with projected parameters. If technical information security in the time is approximated to projected conditions or hacking projector can improve or change it. [ABSTRACT FROM AUTHOR]

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As a result of the work was proposed a method of single technical information security (TIS) system designing with probable reliability and given parameters of breaking. The general dependence between effort and time of breaking by projected frequency of breaking was defined. It is shown that the parameter that determines the probable reliability of TIS may not only be a constant with the time dimension, but depends on both the attempt of breaking and time of breaking. Through the attempt of breaking and time of breaking by an equation for the estimation of the likely reliability of technical security options that are specific designed security system, taking into account the initial primary and essential data in the design of TIS. The expressions were given for determining parameters such as probability values, efforts and time coordinates for line, which is implemented by the projected breaking. These parameters allow not only the TIS design, but also to research, control and manage the process of breaking through coincidence or deviation from the line of breaking events that actually occurred. [ABSTRACT FROM AUTHOR]