The Research and Design of 3G Terminal Data Confidentiality Services

3GPP does not supply any active security service interface or available security algorithm model for the terminals, which restricts the initiative ability and configuration ability of security communication on the application layer in a great deal. Focusing on this problem, we firstly brought forward three-layer architecture which guarantees application layer´s communication security of 3G terminals, researched secure confidentiality service model which is convenient for developers, the algorithm consultation mechanism used in the application layer and the security algorithm model F8* which guarantees the confidentiality of terminal data transmission are included. It is indicated that models and functions raised in this article are able to be used to supply active, visible and selectable confidentiality service for terminals.