Amelioration of authentication and key agreement protocol in 3G
Daxing Li · Jisuanji gongcheng yu sheji · 2006
For the security of data transferred during the communication,The protocol achieves mutual authentication via the user and the network,validates the data integrity which prevents from tampering with the data,ensures the fresh authentication procedure by using the sequence number SQN;However,It is assumed that the intra-system links between the VLR/SGSN and the HE/AUC are ad-equately secure.The data transferred on this links easily be eavesdropped.For solving the problem,A improved AKA protocol based on secret key which is shared between VLR and HLR is put forward,The authentication of HLR to VLR is implemented and the security of authentication vector is assured which is transferred from HLR to VLR.