Considering the characteristics of EPON, we introduce a "churning" policy and modify the process of register and OAM frames, thus to achieve an efficient authentication and encryption scheme.
重点结合EPON系统自身的特点，通过对注册过程以及OAM帧的修改，结合“搅动”策略实现了一种有效的鉴权与加密方案。
The threats to EPON security are analyzed in detail in this paper. The main issues about authentication and encryption are also discussed.
本文详细分析了EPON系统面临的安全隐患，讨论了鉴权与加密的一些关键问题。
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