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Study and implementation of EPON system secruity mechanism

YANG Zong-kai~1,HE Yan~(1,2),ZHANG Ao~2(1.Department of Electrons and Information,Huazhong University of Science and Technology,Hubei Wuhan 430074,P.R.China;2.Wuhan Research Institute of Posts and Telecommunications,Hubei Wuhan 430074,P.R.China)  
From the view of the whole EPON access networks,the security of equipment level,link level and service level in EPON system are studied,and it proposes five security goals in EPON system.After the investigation to equipment's control function,ONU access authentication and broadcast storm suppression,it innovatively proposes a model which could analyze the link security from three levels.Furthermore,it studies on the implementation details of ITUT Churning and Advance Encryption Algorithm(AES) in EPON,which involves encryption mode selection,key generation and key synchronization.At last,it discusses the service security and gives an effective solution to the security of multicast service source control and ONU port multicast service management mechanism.
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