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http://dx.doi.org/10.6109/jkiice.2008.12.6.1022

Secure Framework for SIP-based VoIP Network  

Han, Kyong-Heon (조선대학교 정보통신학과)
Choi, Dong-You (조선대학교 정보통신학과)
Bae, Yong-Guen (조선대학교 컴퓨터공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.6, 2008 , pp. 1022-1025 More about this Journal
Abstract
Session Initiation Protocol (SIP) has become the call control protocol of choice for Voice over IP (VoIP) networks because of its open and extensible nature. However, the integrity of call signaling between sites is of utmost importance, and SIP is vulnerable to attackers when left unprotected. Currently a herby-hop security model is prevalent, wherein intermediaries forward a request towards the destination user agent sewer (UAS) without a user agent client (UAC) knowing whether or not the intermediary behaved in a trusted manner. This paper presents an integrated security model for SIP-based VoIP network by combining hop-by-hop security and end-to-end security.
Keywords
SIP; hop by hop; end to end; VoIP; SIP;
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