An Atm Network Security System

As more and more information is transferred over ATM networks,the security issues are becoming increasingly critical to the ATM systems.This thesis focuses on the ATM cryptographic. Firstly,the security of ATM network is analyzed. Then,a solution of terminal-based ATM cryptographic system is proposed,the layout of the security services in such system is considered,and the hardware modules involved are designed and the architectures of them are presented. In addition,a point-to-point secure messages exchange protocol on ATM user plane is presented and is integrated into the ATM driver. Finally,some real world issues are pointed out and some discussions are made.