You could make up messages and encrypt them, and your friend could use the code to decode the message.

您可以编制各种消息并对它们进行加密，您的伙伴可以使用暗号来解码这些消息。

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That included private files Genger told the court involved secret Israeli government matters, so he was allowed to encrypt them.

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Licensed broadcasters encrypt satellite signals, with subscribers needing a decoder card to access them.

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Too much credit card theft was finally hurting them and they now require anyone who handles credit card information to encrypt that data.

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