Assignment 2 - Substitution-based Encryption

Assignment 2 - Substitution-based Encryption Due Wednesday by 11:59p.m. Points 20 Submitting a file upload File Types py Available Oct 4 at 10p.m. - Oct 11 at 11:59p.m. Start Assignment Title: Assignment 2 - Substitution-based Encryption Step 1 - Problem Statement Write a program that encrypts and decrypts messages (strings) using the Substitution algorithm called ROT13 (see Wiki (https://en.wikipedia.org/wiki/ROT13) for a description of this algorithm). Your program must keep instructing the user to ... Please, enter a message to encrypt/decrypt or enter an empty string to exit the program: until the user enters an empty string. When this occurs, your program must terminate. If the user enters a message (non-empty string), your program must encrypt this message, then decrypt its encrypted version and display the original message, the encrypted version as well as the decrypted version on the computer monitor screen. Requirements Your program must execute as expected on Python 3.11 IDLE and it must start when the menu option Run is selected or F5 is pressed. You must use the ROT13 Substitution algorithm as it is described by Wikipedia (https://en.wikipedia.org/wiki/ROT13) . No other descriptions are acceptable. You cannot use the Python implementations listed on this Wikipedia web site (and on any other web site for that matter). This is to say that ... You cannot use the module codecs and its functions such as encode(...) . You cannot use a list comprehension . (We shall cover list comprehensions later on this semester.) You cannot use a lookup table . You cannot use the functions maketrans(...) , translate(...) , join(...) and lambda . You must write your Python program on your own. Warning: If your program replicates any of the implementations found on Wikipedia or on any other web sites, you will get 0 for this assignment. :( In terms of the iterative statement (loop) in your program, it must make use of a Boolean condition (i.e., Boolean expression) which must evaluate to True and to False depending on the value assigned to the variable(s) contained in this Boolean expression and you cannot use break or exit( ) as part of the body of this iterative statement. You must include a header comment block with the four (4) sections we talk about in our lectures (filename, description, author, date) at the top of your program.