Diameter Session Initiation Protocol (SIP) Application

Authentication, authorization, and accounting services provide the framework on top of which a reliable, secure, and robust accounting system can be built. In a previous work of ours, we have presented a flexible and, most importantly, generic accounting scheme for next generation networks. In this paper, we substantially improve our previous work by providing the required Diameter application namely SIP-Accounting (SIPA) that enables the use of our accounting scheme for Session Initiation Protocol (SIP) services. Additionally, in an effort to protect the service providers and the end users against accounting frauds, we implement an add-on mechanism referred to as SIPA+ to combat attacks targeting the core accounting functions and the integrity of the respective accounting messages. Using the implemented SIPA and SIPA+ prototypes, we conducted a complete set of experiments testing several configurations and two distinct scenarios. The results reveal that the proposed accounting system and its security add-on are fully operable in SIP environments without incurring much cost in terms of performance and overhead.

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Secure push for mobile airline services

Tarkoma¹,

Heikkinen²,

Pohja³

2007

Telecommun Syst

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In this paper, we propose an architecture for secure push services for mobile users that supports commonof-the-shelf (COTS) WLAN base stations. The architecture focuses on the creation of flexible access networks based on easily deployable base stations. The push functionality is realized using client-initiated connections with SIP, and TLS or dTLS for security. The central building block of the distributed system is the edge proxy, which manages and implicitly authenticates all inbound connections, and performs privacy enhancement. The main driving force of our architecture has been airline services, but the system is applicable also for other service domains.

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Diameter Session Initiation Protocol (SIP) Application

Cited by 24 publications

References 16 publications

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SIPA: generic and secure accounting for SIP

Secure push for mobile airline services

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