At what points in DES does a onebit change to an input to pl

At what point(s) in DES does a one-bit change to an input (to plaintext or key) result in a multiple-bit change in the output (next round result)? There are at least two different places that can be identified.use the student id J00386388 then your plaintext is 00386388386388 (in hex) and your key is 00386388386388 (in hex).

Solution

LIBRARY ieee; USE ieee.std_logic_1164.ALL; ENTITY test_tb IS END test_tb; ARCHITECTURE behavior OF test_tb IS COMPONENT test PORT(clk : IN std_logic;) END COMPONENT; signal clk : std_logic := \'0\'; constant clk_period : time := 1 ns; BEGIN uut: test PORT MAP (clk => clk); -- Clock process definitions( clock with 50% duty cycle is generated here. clk_process :process begin clk <= \'0\'; wait for clk_period/2; --for 0.5 ns signal is \'0\'. clk <= \'1\'; wait for clk_period/2; --for next 0.5 ns signal is \'1\'. end process; END;