ciphers.gronsfeld_cipher
========================

.. py:module:: ciphers.gronsfeld_cipher


Functions
---------

.. autoapisummary::

   ciphers.gronsfeld_cipher.gronsfeld


Module Contents
---------------

.. py:function:: gronsfeld(text: str, key: str) -> str

   Encrypt plaintext with the Gronsfeld cipher

   >>> gronsfeld('hello', '412')
   'LFNPP'
   >>> gronsfeld('hello', '123')
   'IGOMQ'
   >>> gronsfeld('', '123')
   ''
   >>> gronsfeld('yes, ¥€$ - _!@#%?', '0')
   'YES, ¥€$ - _!@#%?'
   >>> gronsfeld('yes, ¥€$ - _!@#%?', '01')
   'YFS, ¥€$ - _!@#%?'
   >>> gronsfeld('yes, ¥€$ - _!@#%?', '012')
   'YFU, ¥€$ - _!@#%?'
   >>> gronsfeld('yes, ¥€$ - _!@#%?', '')
   Traceback (most recent call last):
     ...
   ZeroDivisionError: integer modulo by zero