Advertisement

Video Signal Recovery from the Smartphones Touchscreen LCD Display

  • Bogdan TripEmail author
  • Vlad Butnariu
  • Alexandru Boitan
  • Simona Halunga
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 283)

Abstract

In this paper we present several examples of video signal recovery from electromagnetic emissions generated by smartphones touchscreens as well as a number of measurements results performed in a specialized laboratory. We aimed the identification of the video signal parameters by using video images that were especially selected to facilitate this process. The measurements were performed by comparing two smartphones that have different display resolutions. In the final part we will also present a method to identify the emission frequencies for these compromising emanations.

Keywords

Smartphones Touchscreen Video signal Recovery TEMPEST Compromising Emanations 

Notes

Acknowledgment

This work was supported by contract no. 5Sol/2017 within PNCDI III, Integrated Software Platform for Mobile Malware Analysis (ToR-SIM).

References

  1. 1.
    The Electromagnetic Compatibility Regulations 2016. http://www.legislation.gov.uk/uksi/2016/1091/pdfs/uksi_20161091_en.pdf. Accessed 15 June 2018
  2. 2.
    NATO Standard, SDIP-27/1: NATO TEMPEST Requirements and Evaluation Procedures (NATO CONFIDENTIAL), NATO Military Committee Communication and Information Systems Security and Evaluation Agency (SECAN) (2009)Google Scholar
  3. 3.
    Bîndar, V., Popescu, M., Crăciunescu, R.: Aspects of electromagnetic compatibility as a support for communication security based on TEMPEST evaluation. In: 10th International Conference on Communications - COMM 2014, Politehnica University of Bucharest, Military Technical Academy, Bucharest, pp. 529–532 (2014)Google Scholar
  4. 4.
    Popescu, M., Bărtuşică, R., Boitan, A., Marcu, I., Halunga, S.: Considerations on estimating the minimal level of attenuation in TEMPEST filtering for IT equipments. In: Third International Conference, FABULOUS 2017, Bucharest, Romania, pp. 9–15 (2018)Google Scholar
  5. 5.
    van Eck, W.: Electromagnetic radiation from video display units: an eavesdropping risk? Comput. Secur. 4(4), 269–286 (1985)CrossRefGoogle Scholar
  6. 6.
    Kuhn, M.G.: Compromising emanations: Eavesdropping risks of computer displays. https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-577.pdf. Accessed 20 June 2018
  7. 7.
    Kuhn, M.G.: Electromagnetic eavesdropping risks of flat-panel displays. In: Martin, D., Serjantov, A. (eds.) PET 2004. LNCS, vol. 3424, pp. 88–107. Springer, Heidelberg (2005).  https://doi.org/10.1007/11423409_7CrossRefGoogle Scholar
  8. 8.
    Sekiguchi, H., Seto, S.: Measurement of computer RGB signals in conducted emission on power leads. Prog. Electromagn. Res. C 7, 51–64 (2009)CrossRefGoogle Scholar
  9. 9.
    Przesmycki, R.: High definition multimedia interface in the process of electromagnetic infiltration. In: PIERS Proceedings 2015/The 36th Progress in Electromagnetics Research Symposium, pp. 1173–1177 (2015)Google Scholar
  10. 10.
    Przesmycki, R., Nowosielski, L.: Compromising emanations from VGA and DVI interface. In: The 37th Progress in Electromagnetics Research Symposium (PIERS), pp. 1024–1028 (2016)Google Scholar
  11. 11.
    Boitan, A., Bărtușică, R., Halunga, S., Bîndar, V.: Video signal recovery from the laser printer LCD display. The paper had been presented at ATOM-N 2018, The 9th edition of the International Conference on Advanced Topics in Optoelectronics, Microelectronics and NanotechnologiesConstanta, Romania, 23–26 August 2018 (proceeding still under publishing)Google Scholar

Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019

Authors and Affiliations

  • Bogdan Trip
    • 1
    Email author
  • Vlad Butnariu
    • 1
  • Alexandru Boitan
    • 1
  • Simona Halunga
    • 2
  1. 1.The Special Telecommunications Service BucharestBucharestRomania
  2. 2.Telecommunications DepartmentUniversity Politehnica of BucharestBucharestRomania

Personalised recommendations