Diameter-Based Protocol in the IP Multimedia Subsystem
Vinay Kumar S. B.1, Manjula N Harihar2
1Vinay Kumar.S.B, Department of Electronics and Communication, School of Engineering and Technology, Jain University, Bangalore, India.
2Manjula. N. Harihar, Department of Electronics and Communication, School of Engineering and Technology, Jain University, Bangalore, India.
Manuscript received on December 07, 2011. | Revised Manuscript received on December 23, 2011. | Manuscript published on January 05, 2012. | PP: 266-269 | Volume-1 Issue-6, January 2012. | Retrieval Number: F0320121611/2012©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The Diameter protocol was initially developed by the Internet Engineering Task Force (IETF) as an Authentication, Authorization, and Accounting (AAA) framework intended for applications such as remote network access and IP mobility. Diameter was further embraced by the Third Generation Partnership Project (3GPP) as the key protocol for AAA and mobility management in 3G networks. The paper discusses the use of Diameter in the scope of the IP Multimedia Subsystem (IMS) as specified by 3GPP. This paper presents a solution for the problem of how to provide authentication, authorization and accounting (AAA) for multi-domain interacting services by referring open diameter. We have studied the case of ‘FoneFreez’, a service that provides interaction between different basic services, like telephony and television. The involvement of several parties like television provider, telephony provider etc., secure interaction between multiple domains must be assured. A part of this security issue can be resolved using AAA. In this paper the AAA protocol Diameter is used for that purpose, which is the successor of the RADIUS protocol. The authors have taken a look at open diameter can be used for AAA in multi-domain service interaction.
Keywords: Diameter protocol, IP Multimedia Subsystem, AAA, CSCF, HSS, SIP.