An Enigma machine simulator with state and encoding display for Python 2.7.
Currently support is only provided for those machine models in most widespread general use during the war years: the I, M3, and M4.
The package provides functionality for generating a machine configuration from a conventional specification, examining the state of a configuration, simulating the operation of a machine by stepping between states, and encoding messages:
Create a machine configuration (see the documentation for config_enigma_from_string):
>>> from crypto_enigma import * >>> cfg = EnigmaConfig.config_enigma_from_string(u'B-I-III-I EMO UX.MO.AY 13.04.11')
Encode messages (see the documentation for enigma_encoding):
>>> cfg.enigma_encoding(u'TESTINGXTESTINGUD') u'OZQKPFLPYZRPYTFVU'
>>> cfg.enigma_encoding(u'OZQKPFLPYZRPYTFVU') u'TESTINGXTESTINGUD'
Show configuration details (see the documentation for config_string):
>>> print(cfg.config_string(letter=u'X', format='internal', mark_func=lambda c: '(' + c + ')')) X > ABCDEFGHIJKLMNOPQRSTUVW(X)YZ P YBCDEFGHIJKLONMPQRSTXVW(U)AZ UX.MO.AY 1 HCZMRVJPKSUDTQOLWEXN(Y)FAGIB O 05 I 2 KOMQEPVZNXRBDLJHFSUWYACT(G)I M 10 III 3 AXIQJZ(K)RMSUNTOLYDHVBWEGPFC E 19 I R YRUHQSLDPX(N)GOKMIEBFZCWVJAT B 3 ATZQVYWRCEGOI(L)NXDHJMKSUBPF I 2 VLWMEQYPZOA(N)CIBFDKRXSGTJUH III 1 WZBLRVXAYGIPD(T)OHNEJMKFQSUC I P YBCDEFGHIJKLONMPQRS(T)XVWUAZ UX.MO.AY T < CNAUJVQSLEMIKBZRGPHXDFY(T)WO
Simulate machine operation (see the documentation for print_operation):
>>> cfg.print_operation(message=u'TESTING', show_step=True, mark_func=lambda c: '(' + c + ')') 0000 CNAUJVQSLEMIKBZRGPHXDFYTWO EMO 19 10 05 0001 T > UNXKGVERLYDIQBTWMHZ(O)AFPCJS EMP 19 10 06 0002 E > QTYJ(Z)XUPKDIMLSWHAVNBGROFCE EMQ 19 10 07 0003 S > DMXAPTRWKYINBLUESG(Q)FOZHCJV ENR 19 11 08 0004 T > IUSMHRPEAQTVDYWGJFC(K)BLOZNX ENS 19 11 09 0005 I > WMVXQRLS(P)YOGBTKIEFHNZCADJU ENT 19 11 10 0006 N > WKIQXNRSCVBOY(F)LUDGHZPJAEMT ENU 19 11 11 0007 G > RVPTWS(L)KYXHGNMQCOAFDZBEJIU ENV 19 11 12
Watch the machine as it runs for 500 steps:
>>> cfg.print_operation(steps=500, show_step=True, format='internal', overwrite=True)
A command line script, enigma.py, provides almost all the functionality of the API.
Encode messages:
$ enigma.py encode "B-I-III-I EMO UX.MO.AY 13.04.11" "TESTINGXTESTINGUD" OZQKPFLPYZRPYTFVU
$ enigma.py encode "B-I-III-I EMO UX.MO.AY 13.04.11" "OZQKPFLPYZRPYTFVU" TESTINGXTESTINGUD
Show configuration details (explained in more detail in the command line help):
$ enigma.py show "B-I-III-I EMO UX.MO.AY 13.04.11" -l 'X' -H'()' -f internal X > ABCDEFGHIJKLMNOPQRSTUVW(X)YZ P YBCDEFGHIJKLONMPQRSTXVW(U)AZ UX.MO.AY 1 HCZMRVJPKSUDTQOLWEXN(Y)FAGIB O 05 I 2 KOMQEPVZNXRBDLJHFSUWYACT(G)I M 10 III 3 AXIQJZ(K)RMSUNTOLYDHVBWEGPFC E 19 I R YRUHQSLDPX(N)GOKMIEBFZCWVJAT B 3 ATZQVYWRCEGOI(L)NXDHJMKSUBPF I 2 VLWMEQYPZOA(N)CIBFDKRXSGTJUH III 1 WZBLRVXAYGIPD(T)OHNEJMKFQSUC I P YBCDEFGHIJKLONMPQRS(T)XVWUAZ UX.MO.AY T < CNAUJVQSLEMIKBZRGPHXDFY(T)WO
Simulate machine operation (explained in more detail command line help):
$ enigma.py run "B-I-III-I EMO UX.MO.AY 13.04.11" -m "TESTING" -t -H'()' 0000 CNAUJVQSLEMIKBZRGPHXDFYTWO EMO 19 10 05 0001 T > UNXKGVERLYDIQBTWMHZ(O)AFPCJS EMP 19 10 06 0002 E > QTYJ(Z)XUPKDIMLSWHAVNBGROFCE EMQ 19 10 07 0003 S > DMXAPTRWKYINBLUESG(Q)FOZHCJV ENR 19 11 08 0004 T > IUSMHRPEAQTVDYWGJFC(K)BLOZNX ENS 19 11 09 0005 I > WMVXQRLS(P)YOGBTKIEFHNZCADJU ENT 19 11 10 0006 N > WKIQXNRSCVBOY(F)LUDGHZPJAEMT ENU 19 11 11 0007 G > RVPTWS(L)KYXHGNMQCOAFDZBEJIU ENV 19 11 12
Watch the machine as it runs for 500 steps:
$ enigma.py run "c-β-VIII-VII-VI QMLI 'UX.MO.AY 01.13.04.11" -s 500 -t -f internal -o
Full documentation is available at Read the Docs.
Command line documentation is available as help from the command line script:
$ enigma.py --help
Note that the correct display of some characters used to represent components (thin Naval rotors) assumes support for Unicode, while some aspects of the display of machine state depend on support for combining Unicode. This is a known limitation that will be addressed in a future release.
Note also that at the start of any scripts that use this package, you should
from __future__ import unicode_literals
before any code that uses the API, or confiure IPython (in ipython_config.py) with
c.InteractiveShellApp.exec_lines += ["from __future__ import unicode_literals"]
or explicitly supply Unicode strings (e.g., as in the examples above with u'TESTING').
For other Python Enigma machines see:
- py-enigma (Python 3)
This package is based on a Haskell version, with essentially the same API.
This package is in the early stages of development, and I and can't promise the current development version will work. More detail about planned releases and activities can be found the list of scheduled milestones and in the list of open issues and the projects Waffle status board. Various test versions may be available for installation or issues review, but these also may not work as expected.
Migration to Python 3 is underway on a seperate branch.