Slip 14 - B) Write a Python program to display plain text and cipher text using a Caesar encryption.

 Solution:

shift = 3 
text = "HELLO WORLD"
encryption = ""
for c in text:
    if c.isupper():
        c_unicode = ord(c)
        c_index = ord(c) - ord("A")
        new_index = (c_index + shift) % 26
        new_unicode = new_index + ord("A")
        new_character = chr(new_unicode)
        encryption = encryption + new_character
    else:
        encryption += c
        
print("Plain text:",text)
print("Encrypted text:",encryption)

Output: