Vol. 7
Latest Volume
All Volumes
PIERC 127 [2022] PIERC 126 [2022] PIERC 125 [2022] PIERC 124 [2022] PIERC 123 [2022] PIERC 122 [2022] PIERC 121 [2022] PIERC 120 [2022] PIERC 119 [2022] PIERC 118 [2022] PIERC 117 [2021] PIERC 116 [2021] PIERC 115 [2021] PIERC 114 [2021] PIERC 113 [2021] PIERC 112 [2021] PIERC 111 [2021] PIERC 110 [2021] PIERC 109 [2021] PIERC 108 [2021] PIERC 107 [2021] PIERC 106 [2020] PIERC 105 [2020] PIERC 104 [2020] PIERC 103 [2020] PIERC 102 [2020] PIERC 101 [2020] PIERC 100 [2020] PIERC 99 [2020] PIERC 98 [2020] PIERC 97 [2019] PIERC 96 [2019] PIERC 95 [2019] PIERC 94 [2019] PIERC 93 [2019] PIERC 92 [2019] PIERC 91 [2019] PIERC 90 [2019] PIERC 89 [2019] PIERC 88 [2018] PIERC 87 [2018] PIERC 86 [2018] PIERC 85 [2018] PIERC 84 [2018] PIERC 83 [2018] PIERC 82 [2018] PIERC 81 [2018] PIERC 80 [2018] PIERC 79 [2017] PIERC 78 [2017] PIERC 77 [2017] PIERC 76 [2017] PIERC 75 [2017] PIERC 74 [2017] PIERC 73 [2017] PIERC 72 [2017] PIERC 71 [2017] PIERC 70 [2016] PIERC 69 [2016] PIERC 68 [2016] PIERC 67 [2016] PIERC 66 [2016] PIERC 65 [2016] PIERC 64 [2016] PIERC 63 [2016] PIERC 62 [2016] PIERC 61 [2016] PIERC 60 [2015] PIERC 59 [2015] PIERC 58 [2015] PIERC 57 [2015] PIERC 56 [2015] PIERC 55 [2014] PIERC 54 [2014] PIERC 53 [2014] PIERC 52 [2014] PIERC 51 [2014] PIERC 50 [2014] PIERC 49 [2014] PIERC 48 [2014] PIERC 47 [2014] PIERC 46 [2014] PIERC 45 [2013] PIERC 44 [2013] PIERC 43 [2013] PIERC 42 [2013] PIERC 41 [2013] PIERC 40 [2013] PIERC 39 [2013] PIERC 38 [2013] PIERC 37 [2013] PIERC 36 [2013] PIERC 35 [2013] PIERC 34 [2013] PIERC 33 [2012] PIERC 32 [2012] PIERC 31 [2012] PIERC 30 [2012] PIERC 29 [2012] PIERC 28 [2012] PIERC 27 [2012] PIERC 26 [2012] PIERC 25 [2012] PIERC 24 [2011] PIERC 23 [2011] PIERC 22 [2011] PIERC 21 [2011] PIERC 20 [2011] PIERC 19 [2011] PIERC 18 [2011] PIERC 17 [2010] PIERC 16 [2010] PIERC 15 [2010] PIERC 14 [2010] PIERC 13 [2010] PIERC 12 [2010] PIERC 11 [2009] PIERC 10 [2009] PIERC 9 [2009] PIERC 8 [2009] PIERC 7 [2009] PIERC 6 [2009] PIERC 5 [2008] PIERC 4 [2008] PIERC 3 [2008] PIERC 2 [2008] PIERC 1 [2008]
2009-03-11
Measurement of Radiated Computer Rgb Signals
By
Progress In Electromagnetics Research C, Vol. 7, 1-12, 2009
Abstract
The present study was conducted to evaluate the information leakage of the display image that can be reconstructed using the electromagnetic interference emitted from a computer. A reconstructed image was generated from the information signal that correlated with the switching of the RGB signals of the computer display. Based on this observation, a measurement method and system for the information signal was developed by displaying an image with vertical stripes. To check the validity of this measurement method and system, test measurements were carried out. The test result revealed that the information signal can be detected in the electromagnetic interference. In addition, the information signal was found to be contained in high volume between 300 and 600 MHz, depending on the receiving frequency band.
Citation
Hidenori Sekiguchi , "Measurement of Radiated Computer Rgb Signals," Progress In Electromagnetics Research C, Vol. 7, 1-12, 2009.
doi:10.2528/PIERC08122201
http://www.jpier.org/PIERC/pier.php?paper=08122201
References

1., "ISO/IEC 27002: Information technology — Security techniques — Code of practice for information security management,", International Organization for Standardization (ISO) and INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC), 2005.
doi:10.1016/0167-4048(85)90046-X

2., "X.1051: Information Security Management System — Requirements for Telecommunications (ISMS-T),", International Telecommunication Union — Telecommunication Standardization Sector (ITU-T), 2004.

3. Van Eck, W., "Electromagnetic radiation from video display units: An eavesdropping risk?," Computers and Security, Vol. 4, No. 4, 269-286, 1985.

4. Kuhn, M. G. and R. J. Anderson, "Soft tempest: Hidden data transmission using electromagnetic emanations," Proceedings of the Second International Workshop on Information Hiding, Portland, USA, April 1998.

5. Zhuang, L., F. Zhou, and J. D. Tygar, "Keyboard acoustic emanations revisited," Proceeding of the 12th ACM Conference on Computer and Communications Security, New York, USA, November 2005.

6. Kuhn, M. G., Filtered-tempest fonts, Available: http://www.c1.cam.ac.uk/mgk25/st-font.zip..

7. Beyond IT Co., Ltd., CrypType, Available: http://CrypType.com.

8. Suzuki, Y., R. Kobayashi, M. Masugi, K. Tajima, and H. Yamane, "Development of countermeasure device to prevent leakage of information caused by unintentional PC display emanations," Proceeding of the EUROEM 2008 European Electromagnetics, Lausanne, Switzerland, July 2008.

9. Sekiguchi, H. and S. Seto, "Proposal of information signal measurement method in display image contained in electromagnetic noise emanated from a personal computer," Proceeding of the 2008 IEEE International Instrummentation & Measurement Technology Conference , Victoria, Canada, May 2008.

10. Sekiguchi, H., "A measurement and evaluation method of a display image signal contained in electromagnetic emanation from a personal computer," Transaction of IEICE, Vol. J91-B, No. 11, 1478-1483, 2008 (in Japanese).

11., "Monitor Timing Specifications, Version 1.0, Revision 0.8,", Video Electronics Standards Association (VESA), 1998.