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Last year, head keeper Alistair Keen travelled to Peru, along with scientists and wildlife specialists from around the world.
,这一点在新收录的资料中也有详细论述
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The reason is always the same: the content and the key that decrypts it are both present on the client’s machine. The user’s hardware decrypts the content to display it. The user’s hardware is, definitionally, something the user controls. Any sufficiently motivated person with the right tools can intercept the decrypted output.