该方案更新的密钥链是后向安全的，参与者提供的身份链也是后向安全的。
Both the refreshed key chain and the identity chain are of backward security.
该方案可以在不改变现存办公室网络基础设施的条件下，提供安全的数据交换服务。
That solution can provide service on security data exchange without any need to change the office network infrastructure.
运行结果表明，该网络能更好地进行现场设备控制和管理，为实现真正用户终端级的、高安全性的控制提供了一个新的解决方案。
Operation results show that with this network, on-site equipment control and management becomes more convenient, which provides customers with an actual user-terminal class control of high security.
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