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ThinkMind // ICWMC 2012, The Eighth International Conference on Wireless and Mobile Communications // View article icwmc_2012_6_20_20266


Compulsory Service Extensions to SIP-Initiated Communication Sessions

Authors:
Philipp Marcus
Thomas Mair
Florian Dorfmeister

Keywords: SIP-Services; Trusted Third Party; Public-Key- Cryptography; Location Verification; Call Recording.

Abstract:
The Session Initiation Protocol is an application layer protocol with increasing impact on signaling in mobile networks and mobile applications. However, it lacks the possibility to enforce the abidance of special communication constraints after session parameters have been negotiated. In this work, an approach of compulsory services is presented, which allows peer user agents in communication sessions set up by the Session Initiation Protocol to mutually prove each other that transmitted data has been processed by a trusted third party. This is realized by enforcing a set of compulsory services implemented by trusted third parties. Technically, in the session initiation phase the signaling messages are therefore modified according to a rule base in special policy servers. During data transmission, an involved user agent first passes its message to the compulsory service, receives a corresponding token as acknowledgment and finally transmits this token along with the message to the peer user agent. There, based on the validity of the token, further actions can be taken. The usability is demonstrated by three examples including location verification of mobile users.

Pages: 124 to 129

Copyright: Copyright (c) IARIA, 2012

Publication date: June 24, 2012

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-203-5

Location: Venice, Italy

Dates: from June 24, 2012 to June 29, 2012

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