The early propagation effect found in many logic gates is a potential source of data-dependent power consumption. We show that the effect and the corresponding power dependency can be targeted for successful power analysis attacks in cryptographic hardware. Many of the current balanced gate designs did not directly consider the effect and are vulnerable to power analysis attacks.
['Konrad J. Kulikowski', 'Mark G. Karpovsky', 'Alexander Taubin']
Power attacks on secure hardware based on early propagation of data