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Differential power analysis (DPA) has been shown to be an effective attack on cryptographic systems capable of releaving secret data by measuring power consumption. DPA resistant circuits currently experience severe problems in terms of performance, area, and power. Although different countermeasures to reduce DPA attacks have been proposed and implemented in general, such protections do not make attacks infeasible. Additionally, most are dual rail logic families, Delay Based Dual Rail Precharge Logic (DDPL) with high resistance is presented and significantly lower overheads in performance, area, and power than other DPA resistant logic styles. The Delay Based Dual Rail Precharge Logic (DDPL) shows a certain improvement in Normalized Energy Deviation(NED) with respect to other dual rail logics.
Date of Conference: 21-22 March 2012