DocumentCode :
2808012
Title :
Authentication and Authorization Method in Multi-domain, Multi-provider Networks
Author :
Polito, Silvana Greco ; Schulzrinne, Henning
Author_Institution :
Univ. degli Studi di Palermo Palermo, Palermo
fYear :
2007
fDate :
21-23 May 2007
Firstpage :
174
Lastpage :
181
Abstract :
One of the open issues of the all-IP network Integrating wireless and wired technologies is the definition of an authentication, authorization solution running on multi-domain networks with different technologies that has a high security level and addresses the time requirements for real-time multimedia applications. At the same time, the increasing popularity of the voice-over-IP (VoIP) services requires call authorization solutions that allow to charge only one of the users involved in a multimedia session for the payment of all the resources used for it. In this paper, we propose a consortium-based trust model between providers of network resources and providers of voice-over-IP services that allows them to share information for the authentication and the authorization of their users. We define a new model for authentication and authorization of roaming users and a signaling solution for it based on the Extensible Authentication Protocol (EAP) and the Network Access Control Protocol (NACP). We also define a new authorization model for multi-domain VoIP calls and we propose a signaling solution for it based on the Next Steps in Signaling protocol (NSIS).
Keywords :
Internet telephony; access protocols; authorisation; cryptography; message authentication; multimedia communication; signalling protocols; telecommunication security; VoIP; asymmetric key; authorization; consortium-based trust model; extensible authentication protocol; multidomain network; multiprovider network; network access control protocol; real-time multimedia application; signaling protocol; telecommunication security; voice-over-IP service; Access protocols; Authentication; Authorization; Communication system security; Contracts; IP networks; Internet telephony; Roaming; Transport protocols; Web and internet services; AAA; EAP; NSIS; VoIP; roaming;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Next Generation Internet Networks, 3rd EuroNGI Conference on
Conference_Location :
Trondheim
Print_ISBN :
1-4244-0857-1
Electronic_ISBN :
1-4244-0857-1
Type :
conf
DOI :
10.1109/NGI.2007.371213
Filename :
4231836
Link To Document :
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