Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping Process
The protection of information processed electronically involves a large number of IT devices from computer sets or laptops to monitors, printers, servers, etc. In many cases, classified information processing might be associated with the use of projectors, which are an indispensable element of meeti...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Symmetry |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-8994/12/11/1908 |
| _version_ | 1797547287432396800 |
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| author | Alexandru Boitan Ireneusz Kubiak Simona Halunga Artur Przybysz Andrzej Stańczak |
| author_facet | Alexandru Boitan Ireneusz Kubiak Simona Halunga Artur Przybysz Andrzej Stańczak |
| author_sort | Alexandru Boitan |
| collection | DOAJ |
| description | The protection of information processed electronically involves a large number of IT devices from computer sets or laptops to monitors, printers, servers, etc. In many cases, classified information processing might be associated with the use of projectors, which are an indispensable element of meetings for a limited group of people. Such devices are connected to computers through interfaces of various analogue and digital standards and can become an additional source of unwanted emissions, and the distinctive features of these emissions allow the information displayed to be unwantedly reproduced. This paper offers evidence of the existing threat related to electromagnetic infiltration of several projectors, by showing images reconstructed from registered revealing emissions. The paper presents an analysis of several solutions that can be used to reduce the level of infiltration susceptibility of projectors or to highlight this property in the device assessment process. The possibilities of using special computer fonts and the so-called method of colors—background color and text color—is analyzed. The tests were carried out on randomly selected projectors in two independent laboratories, and, based on these results, a number of interesting conclusions have been highlighted at the end. |
| first_indexed | 2024-03-10T14:42:11Z |
| format | Article |
| id | doaj.art-a339c699a3404cf287476a76508e8428 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-10T14:42:11Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-a339c699a3404cf287476a76508e84282023-11-20T21:42:17ZengMDPI AGSymmetry2073-89942020-11-011211190810.3390/sym12111908Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping ProcessAlexandru Boitan0Ireneusz Kubiak1Simona Halunga2Artur Przybysz3Andrzej Stańczak4Special Telecommunications Services, Splaiul Independentei St., 060044 Bucharest, RomaniaDepartment of Electromagnetic Compatibility, Military Communication Institute—National Research Institute, 05-130 Zegrze, PolandTelecommunications Department, University Politehnica of Bucharest, 060042 Bucharest, RomaniaDepartment of Electromagnetic Compatibility, Military Communication Institute—National Research Institute, 05-130 Zegrze, PolandDepartment of Electromagnetic Compatibility, Military Communication Institute—National Research Institute, 05-130 Zegrze, PolandThe protection of information processed electronically involves a large number of IT devices from computer sets or laptops to monitors, printers, servers, etc. In many cases, classified information processing might be associated with the use of projectors, which are an indispensable element of meetings for a limited group of people. Such devices are connected to computers through interfaces of various analogue and digital standards and can become an additional source of unwanted emissions, and the distinctive features of these emissions allow the information displayed to be unwantedly reproduced. This paper offers evidence of the existing threat related to electromagnetic infiltration of several projectors, by showing images reconstructed from registered revealing emissions. The paper presents an analysis of several solutions that can be used to reduce the level of infiltration susceptibility of projectors or to highlight this property in the device assessment process. The possibilities of using special computer fonts and the so-called method of colors—background color and text color—is analyzed. The tests were carried out on randomly selected projectors in two independent laboratories, and, based on these results, a number of interesting conclusions have been highlighted at the end.https://www.mdpi.com/2073-8994/12/11/1908electromagnetic eavesdroppingelectromagnetic infiltrationprojectorinformation protectionrevealing emissionvaluable emission |
| spellingShingle | Alexandru Boitan Ireneusz Kubiak Simona Halunga Artur Przybysz Andrzej Stańczak Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping Process Symmetry electromagnetic eavesdropping electromagnetic infiltration projector information protection revealing emission valuable emission |
| title | Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping Process |
| title_full | Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping Process |
| title_fullStr | Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping Process |
| title_full_unstemmed | Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping Process |
| title_short | Method of Colors and Secure Fonts Used for Source Shaping of Valuable Emissions from Projector in Electromagnetic Eavesdropping Process |
| title_sort | method of colors and secure fonts used for source shaping of valuable emissions from projector in electromagnetic eavesdropping process |
| topic | electromagnetic eavesdropping electromagnetic infiltration projector information protection revealing emission valuable emission |
| url | https://www.mdpi.com/2073-8994/12/11/1908 |
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