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Recently, it has been proposed to use a peer-to-peer network instead of servers to facilitate SIP user registration and location. One of the main security problems of using SIP in a peer-to-peer setting (P2P-SIP) is the authentication of content 1 (the binding of SIP-URI and user location) in the absence of a central authority. Using self-certifying data is(More)
Today, most P2P applications do not consider locality on the underlying network topology when choosing their neighbors on the P2P routing layer. As a result, participating peers may experience long delays and peers' ISPs suffer from a large amount of (costly) inter-ISP traffic. One potential solution to mitigate these problems is to have ISPs or third(More)
In this paper, we show how to enable Information- Centric Networking (ICN) on existing IP networks, such as ISP or data center networks, using Software-Defined Networking (SDN) functions and control. We describe a mechanism that (i) enables addressing and transfer through non-SDN controlled networks (i. e., the Internet), (ii) allows to identify ICN(More)
Distributed applications-such as file sharing, real-time communication, and live and on-demand media streaming-prevalent on the Internet use a significant amount of network resources. Such applications often transfer large amounts of data through connections established between nodes distributed across the Internet with little knowledge of the underlying(More)
Spam-over-IP telephony (SPIT) will likely have a significant impact on the usefulness of VoIP telephony solutions, but some solutions to the problem, such as filtering, could raise unanticipated legal issues.This paper contains both an overview and an assessment of the emerging legal issues in this domain and compares the legislation of two countries with(More)
Recent research activities have proposed using a peer-to-peer network for user registration and user location in session initiation protocol (SIP)-based voice-over-IP (VoIP) networks. The main motivation for peer-to-peer (P2P) SIP is higher robustness as well as easy configuration and maintenance (compared to client-server SIP). However, these advantages(More)
Thin-client based solutions allow users to connect to remote servers and access content that is running on these servers within a virtual PC. With the advent of cloud based solutions, thin-client deployments running on remote Data-centers are increasingly popular. Unfortunately, since the traffic has to traverse through the Internet, issues such as latency,(More)