Both the refreshed key chain and the identity chain are of backward security.
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。
Having identity read points at each station in the supply chain is great.
在供应链的每个站点都使用身份读取点非常好。
In a smart supply chain, sensors will typically be identity readers of some kind.
在智能供应链中，传感器通常是某种类型的身份读取器。
In a smart supply chain, sensors will typically be identity readers of some kind.
在智能供应链中，传感器通常是某种类型的身份读取器。
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