Encryption using a public-private key is slow and is directly proportional to the size of the data being encrypted.

使用公司密钥加密很慢，而且直接与加密的数据大小成正比。

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The key used for the data encryption is encrypted itself using an asymmetric algorithm with the public key associated with the Service Provider's X.509 certificate.

用于数据加密的密钥是使用带有与服务提供者（Service Provider）的 X.509 证书相关联的公钥的非对称算法进行加密的。

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As a result, Public Key Institution (PKI) is proved to be the reliable system for encryption of data, which also draws attention of the commercial society.

其结果是，“公钥基础结构”或PK I被证实不是加密数据的可靠系统，而且商业社会也已经注意到了这一点。

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