Function main

ciphers/transposition_cipher.py:4–15

()

import math

def main():
    message = input('Enter message: ')
    key = int(input('Enter key [2-%s]: ' % (len(message) - 1)))
    mode = input('Encryption/Decryption [e/d]: ')

    if mode.lower().startswith('e'):
        text = encryptMessage(key, message)
    elif mode.lower().startswith('d'):
        text = decryptMessage(key, message)

    # Append pipe symbol (vertical bar) to identify spaces at the end.
    print('Output:\n%s' %(text + '|'))

def encryptMessage(key, message):
    """