于是，SSL通信各方使用快速的私钥算法来加密和解密通信数据。

SSL parties then use fast private key algorithms to encrypt and decrypt communication data.

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目前网络通信中通常采用的是分组数据加密算法——DES，它拥有简捷、快速和标准化的特点，软硬件技术的实现也已经非常成熟。

The software and hardware technology of DES is also very mature, but there are some weaknesses of DES in security and etc.

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