Design of Double-Masking Current-Mode CMOS Circuit Against Power Analysis Attacks

In order to enhance the ability of current-mode CMOS circuits to resist power analysis attacks, we introduce dual-masking logic to form dual-masking current-mode CMOS logic (DM-CML). There are 4 possibilities for the mask value, which is random and unpredictable. When the attacker cannot obtain the accurate mask value, the actual calculation result of the circuit cannot be accurately obtained by attackers. The less correlation between data and power consumption enhances circuit ability to resist power analysis attacks. Through the simulation experiment of Hspice, the results show that the DM-CML has the correct logic function and constant power consumption, which enhances its ability to resist power attacks.