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Cryptographic systems are being compromised by power analysis attacks. In this paper, a novel countermeasure technique against power analysis attacks is proposed which dynamically varies the clock when executing operations (making it difficult to correlate power traces in the time domain) and inserts dummy operations during idling clock cycles (reducing the signal-to-noise ratio of the useful information)...
Electronics cryptographic devices can be attacked by monitoring physical characteristics released from their circuits, such as power consumption and electromagnetic emanation. These techniques are known as Side Channel Attacks (SCAs). The Differential Power Analysis (DPA) is one of the most effective SCAs, which can reveal the secret key from the dependency between power consumption of the device...
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