Security-centric FPGA CAD tools to balance dual-rail routing INWDDL designs

Abstract

The Wave Dynamic Differential Logic (WDDL) is considered as a relevant hardware countermeasure to increase the robustness of cryptographic devices against Differential Power Attacks (DPA). However, to guarantee its effectiveness, the routing in both the direct and complementary paths must be balanced, to obtain equal propagation delays and power consumption on differential signals.