• Practice Python tools to encrypt and decrypt files;
• Account for missing files;

Task:

Consider the Python .py file(s) provided with this assignment on Blackboard and modify the code to meet the following requirements:

• Complete the main function that will run whenever the module is called;
• The main function should interact with the user and allow the user to specify whether he or she want to encrypt or decrypt;
• The user should be allowed to choose between 1) the insecure mode where the encryption key file is saved for usage in decryption or 2) a more secure way where the key is generated whenever it is used through a passphrase;
• The user should be allowed to input the file to encrypt or decrypt;
• When a user input the file to encrypt, the program should identify the file extension explicitly. That same extension should be added to the encrypted file and the decrypted file.
• The program should be able to run from the command line interface and the python shell. Demonstrate both and submit screenshots of your demonstration.