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NAME
pyenigma.py - encrypt/decrypt text according to Enigma machine key settings
SYNOPSIS
pyenigma.py [-h] [-k KEY_FILE] [-d DAY] [-r ROTOR [ROTOR ...]]
[-i RING_SETTING [RING_SETTING ...]]
[-p PLUGBOARD [PLUGBOARD ...]] [-u REFLECTOR] [-s START]
[-t TEXT] [-f FILE] [-x REPLACE_CHAR] [-z] [-v]
DESCRIPTION
pyenigma.py is a command line for processing Enigma messages.
Enigma settings can either be specified by command-line arguments,
or read from a key file. If reading from a key file, the line labeled
with the current day number is used unless the --day argument is provided.
Text to process can be supplied 3 ways:
* if --text=TEXT is present TEXT is processed
* if --file=FILE is present the contents of FILE are processed
* otherwise the text is read from standard input
Please see documentation for the description of the file format.
OPTIONS
-h, --help show this help message and exit
-k KEY_FILE, --key-file KEY_FILE path to key file for daily settings
-d DAY, --day DAY use the settings for day DAY when reading key file
-r ROTOR [ROTOR ...], --rotors ROTOR [ROTOR ...] rotor list ordered from left to right; e.g III IV I
-i RING_SETTING [RING_SETTING ...], --ring-settings RING_SETTING [RING_SETTING ...] ring setting list from left to right; e.g. A A J
-p PLUGBOARD [PLUGBOARD ...], --plugboard PLUGBOARD [PLUGBOARD ...] plugboard settings
-u REFLECTOR, --reflector REFLECTOR reflector name
-s START, --start START starting position
-t TEXT, --text TEXT text to process
-f FILE, --file FILE input file to process
-x REPLACE_CHAR, --replace-char REPLACE_CHAR if the input text contains chars not found on the
enigma keyboard, replace with this char [default: X]
-z, --delete-chars if the input text contains chars not found on the
enigma keyboard, delete them from the input
-v, --verbose provide verbose output; include final rotor positions
EXAMPLE
Try these commands to specify settings from the command line:
$ pyenigma.py \-r III IV V \-i 1 2 3 \-p AB CD EF GH IJ KL MN \-u B \-s XYZ
$ pyenigma.py \-r Beta III IV V \-i A B C D \-p 1/2 3/4 5/6 \-u B\-Thin \-s WXYZ
This command will load Enigma settings from a file:
$ pyenigma.py \-\-key-file=enigma.keys \-s XYZ \-t HELLOXWORLDX
AUTHOR
Brian Neal <bgneal@gmail.com>
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