它设置加密、完整性验证和(可选)压缩并向上层公开一个用于发送和接收纯文本数据包的API。

It sets up encryption, integrity verification, and (optionally) compression and exposes to the upper layer an API for sending and receiving plain text packets.

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完整性确保发送端和接收端的数据一致。

Integrity ensures data remains as is from the sender to the receiver.

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用来验证发送的数据，特别是一个信息的完整性的过程。

A process used to verify the integrity of transmitted data, especially a message.

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