Write a computer program using C++ to implement a simplified version of the DES Block Cipher algorithm, S-DES. You will need to implement the encryption and decryption functions of this algorithm.

Encryption: It will take an 8-bit block plaintext and a 10-bit key and it will generate an 8-bit block ciphertext.

Decryption: It will take an 8-bit block ciphertext and the same 10-bit key and it will generate the 8-bit block plaintext that was encrypted with that key.

Verify that the implementation works, then perform some experiments on different inputs.

The following appendix shows the algorithm used: https://app.box.com/shared/06vnp1hiu3/1/11093575/42458718/1

The program should start by asking the user if he needs to do the encryption or decryption and then it will start to take the corresponding inputs and displays the corresponding output.

Use the following table to test your implementation:

10-bit Key	8-bit Plaintext	8-bit Ciphertext
1111111111	10101010	00000100
1111111111	11111111	00001111
1110001110	10101010	11001010
1010000010	01110010	01110111
0000000000	10101010	00010001