Abstract
Abstract A Smart Grid contains a large number of terminals to gather voltage, current, and power data. If these terminals are attacked by hackers to steal data and disrupt the operation of the grid, the grid will encounter a huge challenge. And side channel attack is an attack way that uses information signals (such as electromagnetic radiation, and computer hardware running sound) inadvertently released by the computer to decipher. The computer keyboard generates electromagnetic radiation signals during operation, and hackers may acquire your account and password through the keyboard’s tapping sound, resulting in the leakage of important data. This article analyzes the electromagnetic radiation leakage vulnerabilities of keyboards and designs a way to implement a TEMPEST (Transient Electromagnetic Pulse Emanation Surveillance Technology) Attack based on the Hidden Markov model, which can provide a foundation for avoiding potential risk.
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