Data Security $//$ Coding Assignment: DES Implementation

in this assignment, you need to use the program language such as C$,$ C$++,$ Java, python and so on to implement DES encryption and decryption algorithm

for the encryption function, there are two inputs $($plaintext and the key$)$ and one output $($ciphertext$)$

for the decryption function, there are two inputs $($ciphertext and the key$)$ and one output $($plaintext$)$

you should submit the original coding file such as $.$c$,.$cpp$,.$java or $.$py on the blackboard

you also need to submit a report. including some screen shots in your report to verify your program can run without any problem