单击加密图标，并将其拖动到处理线上之前的加密操作图标后的位置。
Click on the Encrypt icon and drag it to the processing line after the previous Encrypt action icon.
单击加密图标，并将其拖动到处理线上刚刚创建的签名操作图标后的位置。
Click on the Encrypt icon and drag it to the processing line after the Sign action icon just created.
单击ok按钮，出现一个新的窗口，要求输入数据加密和解密所用的密码。
On selecting the OK button, a new window pops up asking for the password to be used for encrypting and decrypting the data.
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