Secure Multimedia Service Research Articles

OpenWRT기반의 유무선 공유기를 활용한 다기능 웹 서버 구축

Recently the use router is to allow multiple computers by one IP can be connect to the Internet. Also, the PC or server in order to use a Web server or a print server, Web Hard, P2P should be settings. In this paper, we are building a multi-functional Web server that using a router supported OpenWRT based on network settings and firewall settings and a variety of services. A web server can be provided the Internet phone and secure multimedia service Web server router based OpenWRT may be provided through a mobile app and the PC application service.

Content Protective Multi-Agent Platform for MsMu Service and Pattern-Based Content Management

Recent research on mobile Internet protocol television and digital right management (DRM) interconnections has focused on multimedia technologies designed to enhance content scalability and adaptive content distribution. However, due to the architectural and scalable limitations, recent systems are not flexible and securable with respect to their adaptive content distribution and protective policy management. Therefore, we propose a content protective multi-agent platform that provides secure multimedia services, correlation management, pattern-based management, and multisource multi-use (MsMu)-based services. Our architecture, supported by DRM, lets us create a rich set of MsMu-based content protection and seamless multimedia services through the extension of one source multi-use (OsMu)-based content services. We have verified our platform, which provides scalable and securable services with a 17% lower service response time by using a testbed.

Advanced secure multimedia services for digital homes

Our society is becoming increasingly more IT-oriented, and the images and sounds that reflect our daily life are being stored mainly in a digital form. This digital personal life can be part of the home multimedia contents, and users demand access and possibly share these contents (such as photographs, videos, and music) in an ubiquitous way: from any location and with any device. The purpose of this article is twofold. First, we introduce the Feel@Home system, whose main objective is to enable the previously mentioned vision of an ubiquitous digital personal life. Second, we describe the security architecture of Feel@Home, analyzing the security and privacy requirements that identify which threats and vulnerabilities must be considered, and deriving the security building blocks that can be used to protect both IMS-based and VPN-based solutions.

Introduction to special issue on secure multimedia services

With the rapid development of communication technology, it becomes a reality to hear or watch anything, anywhere. Multimedia (image, video, audio, etc.) enriches human’s daily life, and various multimedia services attract more and more users, such as multimedia message services, color rings, mobile TV, IPTV, User Generated Content (UGC), p2p sharing, etc. However, its prosperity also attracts malicious attackers and abusers with different motivations, such as political reasons, illegal financial benefits, or simply to win a prestige reputation in the hacker community. The typical example is piracy, i.e., the original multimedia content is stolen and then redistributed to unauthorized users illegally, which causes great profit-losses to content producers or service providers. Solutions are needed to protect multimedia service systems. During the last decade, various techniques have been proposed to improve multimedia service systems’ security. For example, multimedia encryption is used for confidentiality protection of multimedia content, multimedia authentication for integrity detection, digital watermarking for ownership authentication or copy tracing, Conditional Access (CA) for access control, and Digital Rights Management (DRM) for copyright management, etc. In addition, in different networks, such as the Internet, 3G wireless, DVB-H and sensor network, different secure protocols and algorithms are required to provide system security. All these topics are in active development.

A middleware architecture supporting seamless and secure multimedia services across an intertechnology radio access network

This article presents a middleware architecture to support multimedia services across intertechnology radio access networks in a secure and seamless manner. The proposed architecture uses the media-independent handover framework, where the handover decision function is based on triggering/collecting statistics from the physical, network, and application layers so that an ongoing multimedia session (video) can be transferred seamlessly and securely (using context transfer) across intertechnology radio access networks. Simulation results show that when a vertical handover is based on the proposed MIH framework (including the context transfer of AAA information), handover latency is reduced by 38 percent during WiFi to UMTS handover and 20 percent during UMTS to WiFi handover compared to a non-MIH-based handover scheme.

Survey of secure handoff optimization schemes for multimedia services over all-IP wireless heterogeneous networks

In the very near future, we shall witness the coexistence of networks with heterogeneous link layer technologies. Such networks will naturally overlap each other and mobile users will need to frequently handoff among them for a number of reasons, including the quest for higher speeds and/or lower cost. Handoffs between such hybrid networks should be fast enough to support demanding applications, like multimedia content delivery, but also secure enough since different network providers are involved. This gets even more complicated considering that network providers may not simultaneously be multimedia service providers as it is the case today. In order to support security operations in a large scale the employment of an AAA protocol is mandated; however, this adds more delay to the handoff process. This article analyses and compares the prominent methods proposed so far that optimize the secure handoff process in terms of delay and are suitable for uninterruptible secure multimedia service delivery.

Enhancing mobility management protocols to minimise AAA impact on handoff performance

In an all-IP-based network architecture that provides multimedia services for 3G and WLAN users, security provisioning is a paramount requirement. However, a security infrastructure (e.g., AAA) introduces additional impairments, in the form of delay components, to the total handoff performance crucially affecting the prime objective towards seamless and secure mobility. In this work, a Context Transfer solution is proposed, in order to support seamless and secure multimedia services over all-IP infrastructures. The solution acts as an adhesive between the AAA and mobility management entities by using the latter to forward AAA state information locally. In this solution, the mobility management protocol is used to trigger Context Transfer and additional messages have been introduced to carry the desired AAA context information. The results presented here show that the overall handoff delay is reduced significantly and a considerable improvement is seen in the performance of real-time and non-real-time applications.

A multimedia service composition scheme for ubiquitous networks

It is a challenging task to develop a high quality and secure multimedia service for mobile terminals used in the ubiquitous computing environment. One of the issues is the resource limitation of mobile terminals. In this paper, we presented a multimedia service composition scheme for sharing computer and communication resources by using plural terminals to compensate for this resource limitation. The proposed scheme is based on user authentication, service access control, and the multi-agent-based adaptive Quality-of-Service (QoS) control framework that we developed. We also proposed a novel access mode control based on the trustworthiness of users and extension of the multi-agent-based adaptive QoS control framework to plural users. Focusing on the home network as a typical ubiquitous network, we implemented a prototype testbed system and showed experimental results for the multimedia service composition.