Before accessing the service, you have to sign up for a free account (a Web page address) in order to get a license key that is sent in the requested messages to identify the requester.

在访问该服务之前，必须注册一个免费账户(一个web页面地址)，以获得一个许可键，这个许可键包含在被请求的消息中被发送，用于标识请求者。

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Use this page to create an encryption key. It is recommended that you back up the encryption key after you create it.

使用此页面可创建加密键。建议在创建加密键后对其进行备份。

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Use this page to create, back up, or restore the encryption key. It is recommended that you back up the encryption key after you create it.

使用此页面可创建、备份或恢复加密键。建议在创建加密键后对其进行备份。

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