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Leakage of information through active and passive elements in optical fibre infrastructures
Spurný, Vladimír ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This bachelor thesis deals with the problem of information leakage from optical fiber infrastructures, both from the fibers themselves and from passive and active elements. The first part is devoted to a theoretical description of the transmission of information over an optical fiber and the function of individual components. The next part is focused on the theoretical analysis of possible information leaks. In the last - practical part, there will be an examination of some of the previously described possibilities of information leakage with subsequent analysis and a proposal for risk minimization.
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Analysis of information leakage from optical transmission system
Šimon, Václav ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This bachelor thesis deals with the structure of an optical transmission system. It focuses mainly on the transmission part of the system. It describes its parts and the functioning of the components used. It also deals with the risks of information leakage at various levels of the system (backbone networks, distribution and access networks, optical fiber). The practical part examines the issue of 3 possible risks. Firstly is measured the effect of unauthorized connection of a splitter to the optical path, then the eavesdropping in dense wavelength division multiplexing networks and the last measurement deals with the eavesdropping of the upstream signal in GPON access networks.
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Leakage of information through active and passive elements in optical fibre infrastructures
Spurný, Vladimír ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This bachelor thesis deals with the problem of information leakage from optical fiber infrastructures, both from the fibers themselves and from passive and active elements. The first part is devoted to a theoretical description of the transmission of information over an optical fiber and the function of individual components. The next part is focused on the theoretical analysis of possible information leaks. In the last - practical part, there will be an examination of some of the previously described possibilities of information leakage with subsequent analysis and a proposal for risk minimization.
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Analysis of information leakage from optical transmission system
Šimon, Václav ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This bachelor thesis deals with the structure of an optical transmission system. It focuses mainly on the transmission part of the system. It describes its parts and the functioning of the components used. It also deals with the risks of information leakage at various levels of the system (backbone networks, distribution and access networks, optical fiber). The practical part examines the issue of 3 possible risks. Firstly is measured the effect of unauthorized connection of a splitter to the optical path, then the eavesdropping in dense wavelength division multiplexing networks and the last measurement deals with the eavesdropping of the upstream signal in GPON access networks.
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The development and change of information leaks in news articles published on tech - oriented media PhoneArena.com and MobilMania.cz
Martinů, Ondřej ; Miessler, Jan (advisor) ; Jirků, Jan (referee)
The topic of this thesis is the content of news articles regarding information leaks published on websites PhoneArena.com and MobilMania.cz, which focus on mobile phone news and related topics. Information leaks nowadays often appear in the electronics area on related websites, therefore it is proper to focus on this phenomenon from the viewpoint of media analysis. The work explores (through quantitative content analysis) not only the frequency of such reports between years from 2006 to 2016, but also other features, such as sources of such reports, the location of the notice regarding the information leak, or the potential doubt of the author over the truth of the content of such information. Further attention is paid to the comparison of differences between the Czech and international pages. On the theoretical level, this thesis focuses on the topics of online journalism, sources of online journalism, information embargo, ethical aspects of information leaks, with attention to originators of such reports called "leakers". This thesis seeks to clarify the transformation of the two mentioned sites over the said years in regard to the news articles focused on information leaks.
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