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。
The private key forever in chip, and public key authentication and encryption to send to the chip sensitive data.
这个私有密钥永远在芯片里，而公共密钥用来认证及加密发送到该芯片的敏感数据。
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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