#include #include using namespace std; void printstate(bool *s) { /* This function prints out the 25 bit register*/ cout

Note: the `timestep` function should update the register according the the NLFSR update rule (see Example above).

Example Suppose n = 6 and f(20, 21, 22, 23, 24, 25) = Xo + x1 + 2243 + 21 24325. Let the current state of the register be Ti = 010111 Then the new bit is f(0,1,0,1, 1, 1) = 0 0100.101:1:1 = 0( mod 2) To make ri+1, the state is shifted to the left and the new bit is added to the right. ri+1 = 101110. The output for this step is the bit that was removed from the left, namely 0. Example Suppose n = 6 and f(20, 21, 22, 23, 24, 25) = Xo + x1 + 2243 + 21 24325. Let the current state of the register be Ti = 010111 Then the new bit is f(0,1,0,1, 1, 1) = 0 0100.101:1:1 = 0( mod 2) To make ri+1, the state is shifted to the left and the new bit is added to the right. ri+1 = 101110. The output for this step is the bit that was removed from the left, namely 0