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指出了ATM网络存在的安全威胁,讨论了ATM网络的数据加密技术、完整性服务等ATM网络安全技术。在基于将ATM的安全层置于AAL层和ATM层之间的观点上,本论文设计了一个数字签名结构和密钥交换协议,该协议作为呼叫建立过程的一部分,嵌于现存的ATM信今协议中。这些安全技术可透明地加入到B—ISDN的协议参考模型中,无需改变现存的协议标准。
Pointed out the security threats existing in the ATM network, and discussed ATM network security technologies such as data encryption technology and integrity service in ATM network. From the perspective of placing the ATM security layer between the AAL layer and the ATM layer, this dissertation designs a digital signature structure and key exchange protocol that is embedded as part of the call setup process into existing ATM signaling protocols Agreement. These security technologies transparently join the B-ISDN protocol reference model without changing the existing protocol standards.