Salsano Layout
نویسنده
چکیده
Session Initiation Protocol is currently receiving much attention and seems to be the most promising candidate as signaling protocol for the current and future IP telephony services, also becoming a real competitor to plain old telephone service. For the realization of such a scenario, there is the obvious need to provide a certain level of quality and security, comparable to that provided by the traditional telephone systems. While the problem of QoS mostly refers to the network layer, the problem of security is strictly related to the signaling mechanisms and the service provisioning model. For this reason, at present, a very hot topic in the SIP and IP telephony standardization track is security support. In this work, the security model used by SIP is described, and the different open issues are highlighted. We focus, in particular, on the problem of authentication providing a short tutorial on the solution under standardization. The architecture of a possible commercial IP telephony service including user authentication is also described. Finally, we focus on performance issues. By means of a real testbed implementation, we provide an experimental performance analysis of the SIP security mechanisms, based on our open source Java implementation of a SIP proxy server. The performance of the server has been compared with and without security support, under various scenarios. SIP Security Issues: The SIP Authentication Procedure and its
منابع مشابه
Analysis and Evaluations of Reliability of Reconfigurable FPGAs
Many techniques have been proposed in the technical literature for repairing FPGAs when affected by permanent faults. Almost all of these works exploit the dynamic reconfiguration capabilities of an FPGA where a subset of the available resources is used as spares for replacing the faulty ones. The choice of the best reconfiguration technique depends on both the required reliability and on the a...
متن کاملDesign and implementation of the OFELIA FP7 facility: The European OpenFlow testbed
1389-1286/$ see front matter 2014 Elsevier B.V. All rights reserved. http://dx.doi.org/10.1016/j.bjp.2013.10.015 ⇑ Corresponding author. Tel.: +34 93 553 25 10. E-mail addresses: [email protected] (M. Suñé), [email protected] (L. Bergesio), [email protected] (H. Woesner), tom.rothe@e Rothe), [email protected] (A. Köpsel), [email protected] (D. Colle), bart.puype@...
متن کاملOverview of Field Trial Implementations and Testing Activities in the Framework of IntServ and DiffServ IP Networks
متن کامل
III. The Network Level (CONET)
CONET (Convergence Network) is the network-layer of the CONVERGENCE project. It is an Information Centric Network, which extends the CCNx one in several aspects, including routing scalability, transport mechanisms, security handling, integration with IP, etc. This section describes services and functionalities of CONET and reports some performance evaluations, carried out through laboratory and...
متن کاملSIPPING Working Group
This document proposes a solution for handling vertical handovers among different network technologies using SIP, fulfilling a set of requirements discussed in the document "Requirements for vertical handover of multimedia sessions using SIP" (draft-niccolini-sipping-siphandover-03). The solution requires a new header field (named "Handover") and a new parameter in the Via header field (named "...
متن کامل