Rotor: WWII Enigma

Rotor is a software implementation of the German Enigma machine of WW II.   Rotor was once included in the Python standard library, but was removed from Python 2.4, in large part because Rotor is not considered cryptographically strong, but Rotor can be effective for instructional and low-value encryption purposes.  

Note: THIS CODE IS PROVIDED WITHOUT WARRANTY OR GUARANTEE OF ANY KIND.
             USE AT YOUR OWN RISK.

 
Usage:

    import rotor
    
    mykey     = 'abcd'
    numrotors = 12
    message   = 'Kilroy was here'
    
    r = rotor.newrotor(mykey, numrotors)
    ciphertext = r.encrypt(message)
    
    r2 = rotor.newrotor(mykey, numrotors)
    plaintext = r2.decrypt(ciphertext)
    
        

Download:

source, demos, etc	rotor.zip	dnld
compiled for Python 2.5	MacOSX PPC and x86	dnld
compiled for Python 2.4	MacOSX PPC	dnld
	Linux PPC	dnld
	Linux x86	dnld
	win32	dnld

 
References:

      http://en.wikipedia.org/wiki/Enigma_machine
      http://www.python.org/doc/2.2.3/lib/module-rotor.html
      http://effbot.org/librarybook/rotor.htm