Indeed, in 2003 computer scientist Gordon Rugg demonstrated that text resembling that in the book could be generated with a Cardan grille, an encryption device invented around 1550.
事实上，在2003年电脑科学家戈登·鲁格示范了书中内容可以用一种1550年被发明的叫“万象格”的密码编写装置造出来。
When the program first checks the local computer running the mobile device is present, then select the mobile device, to achieve encryption.
本程序在运行时首先检测本地计算机的移动设备是否存在，然后选择移动设备，实现加密。
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