Mathematical model for glitch power consumption to study its implication on power analysis attacks
Ali Shiri Sichani, Wilfrido Alejandro Moreno · 2018
Side channel information is a major threat against cryptographic circuits. Since cryptographic algorithms are implemented on microprocessors or custom hardware, the attackers easily can exploit the side channel information from the chip to detect the secret key. The power consumption in digital circuits consists of two major components: switching power consumption and leakage power consumption. Both power components in digital circuits have data dependency, while, the switching power consumption has more data dependency than leakage power. Most of the switching power consumption belongs to dynamic power consumption. Unfortunately, the lack of mathematic model to formulate the glitch power consumption has led to uncertain strategy about the impact of glitch power consumption on cryptographic circuits. This paper proposes a glitch power model in combination with discrete time power consumption to make concrete mathematic framework. This framework can be exploited to investigate the impact of glitch power consumption on security of cryptographic circuits.