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Delay-based Dual-rail Pre-charge Logic (DDPL) is a logic style introduced with the aim of hiding power consumption in cryptographic circuits when a Power Analysis (PA) attack is mounted. Its particular data encoding allows to make the adsorbed current constant for each data input combination, irrespective of capacitive load conditions. The purpose is breaking the link between dynamic power and data...
This paper investigates the design of a dual-rail precharge logic family whose power consumption is insensitive to unbalanced load conditions thus allowing adopting a semi-custom design flow (automatic place and route) without any constraint on the routing of the complementary wires. The proposed logic is based on a novel encoding concept where the information is represented in the time domain rather...
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