Research on security in SIP-based network
Qihui Zhang · Jisuanji gongcheng yu sheji · 2004
SIP protocol is one of the important protocols in next generation network. In SIP network, due to the different devices and complicated network environment, that is to say, different devices support different protocols; different network environment requires different security protocols, specifying some definite security protocol makes the system lack of flexibility and reliability. A new negotiation mechanism for the selection of security protocols among SIP entities was put forward, and moreover the corresponding security analysis was provided.