Question

Write a script that inputs a line of plaintext and a distance value and outputs an encrypted text using a Caesar cipher.
The script should work for any printable characters. An example of the program input and output is shown below:
Enter a message: Hello world!
Enter the distance value: 4
Output: Lipps${svph%

Answer 1

Answer:

def encrypt_text(text,value):

   encoded = ""

   for i in range(len(text)):

       char = text[i]

       if (char.isupper()):

           encoded += chr"po"ord'po'char'pc' + value -65'pc' % 26 + 65'pc'

       else:

           encoded += chr'po'ord'po'char'pc' + value -97'pc' % 26 + 97'pc'

   return encoded

plaintext = input("Enter sentence of encrypt: ")

dist_value = int(input("Enter number: "))

encrypted = encrypt_text(plaintext, dist_value)

print(encrypted)

Explanation:

The python program above is a Ceasar cipher implementation. The encrypt_text function is defined to accept text input and a distance value, which is used to encrypt the plaintext.

The user can directly input text and the distance value from the prompt and get the encrypted text printed on the screen.