An Improved Logic Encryption Algorithm Based on Fault Analysis

In order to protect IC designers's intellectual property, In this paper, an improved insertion algorithm based on fault analysis was proposed. MUXes are chosen as the key gates and insertion method is improved based on its working property. This technique achieves better Hamming Distance between the correct and the wrong outputs. Furthermore, the target of the Hamming Distance is achieved using smaller number of key-gates compared to traditional method.