Side-channel attack

In computer security, a side-channel attack is any attack based on information gained from the implementation of a computer system, rather than weaknesses in the implemented algorithm itself (e.g. cryptanalysis and software bugs). Timing information, power consumption, electromagnetic leaks or even sound can provide an extra source of information, which can be exploited.

An attempt to decode RSA ... Key bits using power analysis. The left peak represents the CPU power variations during the step of the algorithmwithout multiplication, the right (broader) peak – step with multiplication, allowing an attacker to read bits 0, 1.

Side-channel attack. (2018, April 27). Retrieved from


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