Abstract:

Based on the recently released LTE／SAE R8 and R9 standard by 3GPP, first of all, the security function of LTE／SAE is summarized, then the security architecture and mechanism of SAE／LTE are particularly studied. Finally, in combination with the research work,the security mechanism of UE is designed and realized detailedly, and this solution is important for security of LTE／SAE. In the place of much services of network and new operations, lack of the security of LTE will be a true and utility system difficultly. Therefore, the design of security is vital.

Key words: LTE／SAE, security mechanism, authentication and key agreement, access stratum, non-access stratum, security mode