The implementation of safety logic for security systems are one of the most important technologies is logic locking System. In this used a XOR gate for security purpose. In this the lock can only opened when the desired key is entered which is given by the XOR in the system. In this paper also used sensitivity based algorithms. This algorithm applies to the attacks model based on the sensitivity of the inputs. By using this get control, execution, and range overheads as takes after to begin with, the maximum frequency of the plan( high frequency). A special kind of nodes called a modified bit stream is loaded into an CW305 Artix  FPGA used for profiling. While this FPGA is working, power usage is measured. These measurements are then used to train a neural network DNN  and an MLP is used. Both models are trained using power traces collected from the profiling FPGA. After training, the attack stage begins. Power traces are gathered from the device being tested and sent to the models that have already been trained. These models try to guess the output of the function that is being used.

Index Term: Logic locking, Power, Security, RE, overheads