Study On The Security Of The Third Generation Mobile Communication

The thesis is devoted to the security of 3G mobile communication. It contains the architecture, algorithms, and protocols etc. Main contributions of the work are as follows:Firstly, the security architecture, requirements, mode, and algorithms, protocols flows of 3G needed are formalized; Second, The radio access encryption, data confidentiality and data integrity technology are also deeply discussed; Third, A detailed analysis of the standardized fS and f9 is given; At the same time, the two algorithms are realized; Next a scheme to implement fD-f5 algorithms 3G needed is proposed on the basis of 3G architecture, We also analyzed its practicability; Then according to provable security theorem and the differential and algebraic cryptanalysis ,We analyze the KASUMI algorithm to know the security level of it; Two systems to implement the security in the network-domain are given aiming at resolving the security problem in the fixed network: one is a global system; the other is called Two-Tiered key management system by use of IPSec, IKE. What抯 more, a key management scheme to realize network-wide security is presented and generalized. Finally, two new and viable electronic cash systems are given with security and efficiency analysis.