An Energy Efficient Secure Logic to Provide Resistance against Differential Power Analysis Attacks

In this article, we propose a new logic style which is resistant to Differential Power Analysis (DPA) attacks as well as energy efficient, to provide security to devices like smart cards. The main drawback in the existing secure logic styles was the high power consumption which is reduced significantly by using adiabatic approach. Dual-rail logic is used to maintain security and adiabatic logic is combined with it to reduce the power consumption. These ideas are implemented using Hspice tool, a significant improvement in power consumption and resistance against DPA attacks are observed when compared to the existing logic styles.