Certificate has become the managing tool of PKI. End entity must validate certificate's creditability before communication.
PK I以数字证书为密钥管理工具，终端实体之间进行通信之前必须要验证数字证书的可信性。
Certificate has become the managing tool of PKI. End entity must validate certificate's creditability before communication.
PK I以数字证书为密钥管理工具，终端实体之间进行通信之前必须要验证数字证书的可信性。
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