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This implements the steganography feature described in #28. It works as follows:
--encode
) is read and converted to a bit stream0
is represented by the first option1
is represented by the second00
is represented by the first10
is represented by the thirdint(log(len(options), 2))
0
and a1
, but the third option cannot be used to encode data.This method is compatible with the
--me-harder
option (and is, in fact, likely necessary in order to hide information of any substantial size.)In addition, this change also supports mimicking files passed in with the
--source
option rather than onstdin
, and the tests have been updated to use nose, so they can be run usingpython setup.py test