There are many ways for computers to leak information. Analyzing CPU noise can crack encrypted information

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There are many ways for computers to leak information. Analyzing CPU noise can crack encrypted information [Copy link]

A study conducted by the Weizmann Institute in Israel has initially confirmed that it is possible to decrypt encrypted information by analyzing the noise emitted by computer chips. The researchers recorded and analyzed the high-frequency sound waves generated by the computer CPU. They found that the noise frequencies generated by the chip when processing information encrypted with different keys were different. They also found that they could determine the length of the information data by the duration of a certain sound, because this data is related to the time it takes to process the key...