我们可以知道，程序要有加密模块、解密模块、子密钥生成模块，这三个模块构成DES算法。

We know that procedures have encryption module, decryption modules for key generating modules, which constitute three modules DES algorithm.

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本文讨论如何获得根据主密钥在每一轮中生成子密钥的方法。

This article discusses how to get the method of generating subkey in each round according to masterkey.

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所述分体式终端的主机和子机之间数据传输的方法，包括：分体式终端的主机生成注册密钥，通过蓝牙技术将所述注册密钥发送至子机；

Method for transmitting data between split type terminal mainframe and handset includes: split type terminal mainframe generates register cipher key which is sent to handset by bluetooth technology;

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所述分体式终端的主机和子机之间数据传输的方法，包括：分体式终端的主机生成注册密钥，通过蓝牙技术将所述注册密钥发送至子机；

Method for transmitting data between split type terminal mainframe and handset includes: split type terminal mainframe generates register cipher key which is sent to handset by bluetooth technology;

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