#python #course #tutorial
import random
import string
chars = " " + string.punctuation + string.digits + string.ascii_letters
chars = list(chars)
key = chars.copy()
random.shuffle(key)
#ENCRYPT
plain_text = input("Enter a message to encrypt: ")
cipher_text = ""
for letter in plain_text:
index = chars.index(letter)
cipher_text += key[index]
print(f"original message : {plain_text}")
print(f"encrypted message: {cipher_text}")
#DECRYPT
cipher_text = input("Enter a message to encrypt: ")
plain_text = ""
for letter in cipher_text:
index = key.index(letter)
plain_text += chars[index]
print(f"encrypted message: {cipher_text}")
print(f"original message : {plain_text}")
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