GitHub - kisom/pyspamsteg: python tool to hide and reveal messages using spam

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pyspamsteg.py		pyspamsteg.py
pyspamsteg_tests.py		pyspamsteg_tests.py

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pyspamsteg
author: kyle isom <coder@kyleisom.net>

hide / reveal steganographic messages in spam

usage:
    pyspamsteg -r <message file>
        reads a message from file and outputs it to stdout

    pyspamsteg -w <message file> <file>
        reads a message from file and outputs to file

    a dash ('-') may be substituted for a filename to output from stdout
    or input from stdin.

how does this work?
    http://programmingpraxis.com/2011/06/10/steganography/