gronsfeld.py - the gronsfeld classical cipher for python.
 
Requires cipher.py by Tesla Coil <tescoil@irtc.net>
and (currently) ecipher.py by me.
 
This is the _numeric_ running-key gronsfeld.

Modules
		cipher ecipher string

Functions
		genc(type, dir, key, plaintext) Driver for encryption/decryption gron(type, dir, key, plaintext) Encryption/Decryption:   make bigrams of the key and text. For encryption count forward in the plaintext forward by keynumber, for decryption, count backwards.   Returns a list of ciphertext.

Data
		__author__ = 'Sean Dwyer <ewe2@can.org.au>' __credits = 'cipher.py by Tesla Coil <tescoil@irtc.net>' __date__ = '20 March 2001' __file__ = './gronsfeld.py' __name__ = 'gronsfeld' __version = '$Revision: 1.5 $'

Author
		Sean Dwyer <ewe2@can.org.au>