3GPP Protocol-based WCDMA Network Vulnerability Research

Targeted interference in WCDMA network is a science problem which can not wait to be solved.In this thesis,a new attack plan with a specific target has been proposed by analyzing the protocal vulnerability of WCDMA network.The new attack plan is based on the XXX project which aims at obtaining the solution of targeted interference.The analyzing is based on the 3GPP TS RRC protocol and physical layer protocol.The main content of this article is as follows:1.The classic Kasumi algorithm which plays an important role in WCDMA network has been analyzed in this thesis.The Kasumi-targeted attack–––related key Sandwich attack has been simulated to attack Kasumi algorithm.This thesis shows a way to improve the 7-round Kasumi discriminator by adjusting the rule of how to choose plaintext.The simulation result shows that the improved discriminator can reduce the storage complexity of the attack algorithm.2.Because Sandwich attack requires harsh condion–––lots of time and expensive hardware,it is difficult to implement the attack even the improved version.A better breakthrough point is the random access process.A pseudo station attack plan which targets the random access process have been showed in this thesis.The pseudo station attack is based on the RRC protocol and its simulation result shows that the target will discard the real station while the ordinary user communicates with the real station normally.3.The pseudo station attack's critical module has been rewritten by C language in this thesis.The C code has been runned in the software condition––––CCS5.5.The CCS5.5 software simulation has the same result with Matlab simulation.The similarity ensures the correctness of the attack module logic.The purpose of coding in C language is to take the possibility of implementing the future attack with DSP-loaded UAV into consideration.