Reconstruction of Video Information Through Leakaged Electromagnetic Waves From Two VDUs Using a Narrow Band-Pass Filter
Dong‐Hoon Choi, Euibum Lee, Jong‐Gwan Yook
Abstract
This paper proposes a method to reconstruct an original video display from electromagnetic leakage by using the characteristics of digital video interfaces (e.g., digital visual interface (DVI) and high-definition multimedia interface (HDMI)). Moreover, it is proven that the analysis is applicable through a very narrow multiband pass filter when multiple video display units (VDUs) with identical video properties (resolution, refresh rate, etc.) are placed together and emanate simultaneously. The proposed method is verified with our reconstruction system and is expected to contribute to improving the security of video display signals by raising awareness regarding information leakage risks.
Topics & Concepts
Computer scienceComputer visionRefresh rateFilter (signal processing)Artificial intelligenceDigital filterInterface (matter)Computer graphics (images)Maximum bubble pressure methodBubbleParallel computingElectrostatic Discharge in ElectronicsPhysical Unclonable Functions (PUFs) and Hardware SecurityPulsed Power Technology Applications