Research On Application Security Issues Of WiiSE Network

WiiSE network proposed by China Mobile is the next-generation mobile network, which is a semi-trusted network for specific application based on carrier-grade distributed network. The purpose of WiiSE is to establish an end-to-end business environment through mobile Internet as the Internet-based services will become the main business of the mobile communication network. In WiiSE network where business is the core, one of the most important research is how to ensure safe operation of these businesses. In this thesis, we attempt to study the business security mechanisms.With the development of information technology and computing capabilities of terminal, mobile platform becomes similar to a small portable PC machine, hence we consider the mobile platform as a computer platform. Terminal security platform is designed to protect sensitive information from accessing by unauthorized third party in WiiSE. The information disclosure has brought incalculable economic loss. After the introduction of EFI and the analysis of the existing terminal security platform, we propose a security platform SIM based on EFI, Dual-core and Trusted Computing. We also give an application example using this security platform in Digital Right Management. Finally, we give the security analysis and performance comparison.In WiiSE based on P2P architecture, there are trusted peers which work in WiiSE core network and are controlled by the operator. There are also uncontrolled Internet peers and many distrusted peers in terminal. In P2P network, the reputation system is used to describe the behavior of peers, the WiiSE also needs reputation system to manage the terminal peers. We propose a linguistic reputation model in WiiSE network. The model employs nature language instead of a fix number to rate the peer in reputation system, and some application specific factors are also taken into account. We give an application example using this model in WiiSE. From this example we can see that, the reviewer can conveniently rate the seller using this linguistic reputation model. On the other side, we consider the trade value to obtain the global reputation of one seller.The traditional voice business has been unable to meet the needs of the people, Multimedia-oriented mobile service has already been used to mobile terminals, the DRM is becoming more and more important. The aim of WiiSE network is to provide better multimedia services. There are many DRM-based digital multimedia services in WiiSE network. We give a new DRM model to resell the right. The model brings the consumer's economic interests into the industrial chain, balances the interests between content provider and user, and inspires the consumer to use legal content. We design a new protocol based on IBE and Re-Encryption scheme to implement this model, and give an application example in WiiSE network. Security and economic interests of this model are also analyzed.In carrier-grade distributed network, how to make use of the existing advantages of VoIP combined with the characteristics of distributed networks, and apply VoIP systems to the carrier-grade distributed network, is a very important research direction. This paper attempts to use the characteristics of WiiSE network to port VoIP into WiiSE networks. At the same time, as VoIP is an important business of WiiSE networks, we design appropriate security protocol and security mechanisms to satisfy the requirements of operator that the WiiSE network must be controllable, manageable and operable. In this paper, we design the VoIP architecture at WiiSE network, and then analyze the security threats in VoIP. Finally, we design a VoIP security protocol and develop the corresponding security mechanism, which can be used as the reference of VoIP business in future carrier-grade distributed network.