LED 디스플레이 시스템에서의 보안 강화를 위한 HDMI를 이용한 영상 표출 보안 개선 연구

Abstract

Currently, the security technology applied to LED displays is focused on network security, and a problem exists with the expression security function of the final display equipment. Therefore, the development and improvement of security technology, application of standardized security protocols, security training for operators and users, and fundamental and specific approaches are required. Unintended expression accidents and security problems may occur in the display of images. Accordingly, a fundamental security plan applying a representative HDMI signal processing technology is required. Therefore, this study analyzes the security technology currently applied to digital media imaging systems and proposes a new video security technique using voice signals in videos to solve the fundamental expression problem of security methods for media images that were limited to existing network fields.
 To verify the proposed technique, the reliability and safety of the display security of video files were compared between the existing and the improved systems by applying it to the LED display system using HDMI. The result confirmed that the unspecified video could not be displayed depending on the security application. If the security application technique using voice frequencies proposed in this study is applied to the currently released digital media imaging system, excellent improvement can be achieved in maintaining the confidentiality of operating data, preventing external attacks and modifications, and controlling illegal content and advertisements.