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Randy S. Tolentino,Sungwon Park 보안공학연구지원센터(JSE) 2010 보안공학연구논문지 Vol.7 No.4
The proper functioning of large infrastructures in hospital networks, the continuity of the vital services they provide is largely taken for granted, both by direct users and by those responsible for other, dependent infrastructures and services. Modern automation system used in infrastructure including Supervisory Control and Data Acquisition (SCADA) to monitor and supervised the functionality of infrastructure. The interoperability of heterogeneous medical devices, clinical information systems and components such as computer assisted surgery (CAS) and Therapy Imaging and Model Management System (TIMMS) has been recognized for its potential to improve the overall clinical workflow of operating room systems as well as ergonomic conditions by centralized access and control of integrated system. However, the installation of an integrated IT infrastructure with additional computer hardware, software, and network components heavily increase the overall technical complexity of operating room system. In hospital networks, the life critical domain within the operating room system demands safe and reliable operation of the integrated operating room system components. This paper propose an appropriate technical supervision framework that required supports of high confident functionality by facilitating systems monitoring and diagnosis of the hospital networked hardware and software. System failures, hospital network bottlenecks or unstable conditions should be detected to enable appropriate interventions and mitigation strategies.
IPTV 환경에서 해쉬 체인을 이용한 미디어 콘텐츠 분배기법
이기정(Gi-Jeong Lee),Randy S. Tolentino,정윤수(Yoon-Su Jeong),김용태(Yong-Tae Kim),박길철(Gil-Cheol Park) 한국정보기술학회 2009 Proceedings of KIIT Conference Vol.2009 No.-
최근 방송 서비스에서는 IPTV을 이용한 멀티미디어 서비스가 점점 증가하고 있는 추세이다. 멀티미디어 콘텐츠를 제공하는 서버의 부하 및 비용을 줄이기 위해서 P2P 기반의 오버레이 네트워크를 이용하여 미디어 콘텐츠를 분배하는 기술들이 등장하고 있다. 그러나 현재까지 제안된 기술들은 효율성만큼이나 보안성이 보장되지 않고 있다. 이 논문에서는 IPTV에서 제공하는 미디어 콘텐츠의 보안성을 향상시키면서 현재 제공되고 있는 효율성을 유지할 수 있는 미디어 콘텐츠 분배기법을 제안한다. 제안기법은 해쉬체인을 이용하여 미디어 콘텐츠를 분배하여 암호화 한 후 새로운 패킷을 생성하기 위해 해쉬체인을 사용하여 사용자에게 서비스를 제공 한다. Recently, the multimedia service using IPTV is increasing more and more in broadcasting service. To decrease the expenses and load of server offering multimedia contents, the technologies which distribute media contents using P2P-based overlay network is appearing. However, the technologies proposed until now don't guarantee the security as much as the efficiency. This paper proposes a media-contents distribution technique which can improve the security of media contents provided by IPTV and maintain the efficiency which is providing now. The proposed technique provides service to user to create a new packet using hash chain after encrypts distributed media contents using hash chain.