A Secured Approach to Protect SIP Signaling Message
Narendra M. Shekokar
Progress in Signals and Telecommunication Engineering, Vol. 3, No. 2, 2014.
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Abstract:
In todayâ€™s era VoIP system is globally accepted and popular communication system because of its reach features. VoIP system uses two signalling protocol: H323 and SIP (Session Initiation Protocol). Out of these SIP is popular amongst
VoIP subscriber because of its light weight nature, but SIP is vulnerable to various confidentiality threats because of its text
nature and poor authentication. In this paper we have attempted to provide confidentiality to SIP signalling message by designing secured symmetric encryption algorithms to address the vulnerability of DES algorithms. Proposed algorithm is working on Feistel cipher principle. Proposed algorithm is tested based on its security strength.