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IMSI (International Mobile Station Identity) is a unique number associated with all GSM and UMTS network mobile phone user. IMSI filtering - a prefix filtering, is an important function in the 3G firewall. It is an indefinite filtering which affects the efficiency of the security device. This paper brings forward a parallel processing method which uses vector coding and structure of bloom filter....
GPRS tunnelling protocol (GTP) is the protocol used in general packet radio service (GPRS) Core network, and it will also be used in the 3rd Generation (3G) network. In view of that few study concerns about GTP stateful inspection at present, this paper introduces a method of GTP stateful inspection on the foundation of analyzing the GTP protocol and provides the implementation of the method based...
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