Author(s)

Min ZHAO, Ling SHI

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This paper analyses security mechanism and authentication, key agreement protocol of 3G system amply, puts forward a amelioration scheme. This scheme assures security communications without credible VLR. This paper analyses ameliorative protocol and resolves the security communications problem between MS and HLR.

3G Security, 3G Security Structure, 3G authentication and key agreement protocol Security arith- metic

M. ZHAO and L. SHI, "The Analysis and Amendment of Security System in 3G," Intelligent Information Management, Vol. 1 No. 1, 2009, pp. 1-5. doi: 10.4236/iim.2009.11001.