stegano/console/wav.py

@@ -1,128 +0,0 @@
-#!/usr/bin/env python
-# Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
-#
-# For more information : https://github.com/cedricbonhomme/Stegano
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>
-
-__author__ = "Cedric Bonhomme"
-__version__ = "$Revision: 0.7 $"
-__date__ = "$Date: 2016/03/18 $"
-__revision__ = "$Date: 2019/06/04 $"
-__license__ = "GPLv3"
-
-try:
-    from stegano import wav
-except Exception:
-    print("Install stegano: pipx install Stegano")
-
-import argparse
-
-from stegano import tools
-
-def main():
-    parser = argparse.ArgumentParser(prog="stegano-lsb")
-    subparsers = parser.add_subparsers(
-        help="sub-command help", dest="command", required=True
-    )
-
-    # Subparser: Hide
-    parser_hide = subparsers.add_parser("hide", help="hide help")
-    # Original audio
-    parser_hide.add_argument(
-        "-i",
-        "--input",
-        dest="input_audio_file",
-        required=True,
-        help="Input audio file.",
-    )
-    parser_hide.add_argument(
-        "-e",
-        "--encoding",
-        dest="encoding",
-        choices=tools.ENCODINGS.keys(),
-        default="UTF-8",
-        help="Specify the encoding of the message to hide."
-        " UTF-8 (default) or UTF-32LE.",
-    )
-
-    group_secret = parser_hide.add_mutually_exclusive_group(required=True)
-    # Non binary secret message to hide
-    group_secret.add_argument(
-        "-m", dest="secret_message", help="Your secret message to hide (non binary)."
-    )
-    # Binary secret message to hide
-    group_secret.add_argument(
-        "-f", dest="secret_file", help="Your secret to hide (Text or any binary file)."
-    )
-
-    # Audio containing the secret
-    parser_hide.add_argument(
-        "-o",
-        "--output",
-        dest="output_audio_file",
-        required=True,
-        help="Output audio containing the secret.",
-    )
-
-    # Subparser: Reveal
-    parser_reveal = subparsers.add_parser("reveal", help="reveal help")
-    parser_reveal.add_argument(
-        "-i",
-        "--input",
-        dest="input_audio_file",
-        required=True,
-        help="Input audio file.",
-    )
-    parser_reveal.add_argument(
-        "-e",
-        "--encoding",
-        dest="encoding",
-        choices=tools.ENCODINGS.keys(),
-        default="UTF-8",
-        help="Specify the encoding of the message to reveal."
-        " UTF-8 (default) or UTF-32LE.",
-    )
-
-    arguments = parser.parse_args()
-
-    if arguments.command == "hide":
-        if arguments.secret_message is not None:
-            secret = arguments.secret_message
-        elif arguments.secret_file != "":
-            secret = tools.binary2base64(arguments.secret_file)
-
-        wav.hide(
-            input_file=arguments.input_audio_file,
-            message=secret,
-            encoding=arguments.encoding,
-            output_file=arguments.output_audio_file
-        )
-
-    elif arguments.command == "reveal":
-        try:
-            secret = wav.reveal(
-                encoded_wav=arguments.input_audio_file,
-                encoding=arguments.encoding
-            )
-        except IndexError:
-            print("Impossible to detect message.")
-            exit(0)
-        if arguments.secret_binary is not None:
-            data = tools.base642binary(secret)
-            with open(arguments.secret_binary, "wb") as f:
-                f.write(data)
-        else:
-            print(secret)

stegano/exifHeader/exifHeader.py

@@ -40,7 +40,7 @@ def hide(
     from zlib import compress
 
     if secret_file is not None:
-        with open(secret_file, "rb") as f:
+        with open(secret_file) as f:
             secret_message = f.read()
 
     try:

stegano/wav/__init__.py

@@ -1,5 +0,0 @@
-#!/usr/bin/env python
-
-from .wav import hide, reveal
-
-__all__ = ["hide", "reveal"]

stegano/wav/wav.py

@@ -1,105 +0,0 @@
-#!/usr/bin/env python
-# Stegano - Stéganô is a basic Python Steganography module.
-# Copyright (C) 2010-2024  Cédric Bonhomme - https://www.cedricbonhomme.org
-#
-# For more information : https://github.com/cedricbonhomme/Stegano
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>
-
-__author__ = "Cedric Bonhomme"
-__version__ = "$Revision: 0.2 $"
-__date__ = "$Date: 2010/10/01 $"
-__revision__ = "$Date: 2017/02/06 $"
-__license__ = "GPLv3"
-
-import wave
-from typing import IO, Union
-from stegano import tools
-
-def hide(
-    input_file: Union[str, IO[bytes]], 
-    message: str, 
-    output_file: Union[str, IO[bytes]],
-    encoding: str = "UTF-8"
-):
-    """
-    Hide a message (string) in a .wav audio file.
-
-    Use the lsb of each PCM encoded sample to hide the message string characters as ASCII values.
-    The first eight bits are used for message_length of the string.
-    """
-    message_length = len(message)
-    assert message_length != 0, "message message_length is zero"
-    assert message_length < 255, "message is too long"
-
-    output = wave.open(output_file, "wb")
-    with wave.open(input_file, "rb") as input:
-        # get .wav params
-        nchannels, sampwidth, framerate, nframes, comptype, _ = input.getparams()
-        assert comptype == "NONE", "only uncompressed files are supported"
-
-        nsamples = nframes * nchannels 
-        
-        message_bits = f"{message_length:08b}" + "".join(tools.a2bits_list(message, encoding))
-        assert len(message_bits) <= nsamples, "message is too long"
-
-        # copy over .wav params to output
-        output.setnchannels(nchannels)
-        output.setsampwidth(sampwidth)
-        output.setframerate(framerate)
-
-        # encode message in frames
-        frames = bytearray(input.readframes(nsamples))
-        for i in range(nsamples):
-            if i < len(message_bits):
-                if message_bits[i] == "0":
-                    frames[i] = frames[i] & ~1
-                else:
-                    frames[i] = frames[i] | 1
-
-        # write out
-        output.writeframes(frames)
-
-
-def reveal(input_file: Union[str, IO[bytes]], encoding: str = "UTF-8"):
-    """
-    Find a message in an image.
-
-    Check the lsb of each PCM encoded sample for hidden message characters (ASCII values).
-    The first eight bits are used for message_length of the string.
-    """
-    message = ""
-    encoding_len = tools.ENCODINGS[encoding]
-    with wave.open(input_file, "rb") as input:
-        nchannels, _, _, nframes, comptype, _ = input.getparams()
-        assert comptype == "NONE", "only uncompressed files are supported"
-
-        nsamples = nframes * nchannels
-        frames = bytearray(input.readframes(nsamples))
-
-        # Read first 8 bits for message length
-        length_bits = ""
-        for i in range(8):
-            length_bits += str(frames[i] & 1)
-        message_length = int(length_bits, 2)
-
-        # Read message bits
-        message_bits = ""
-        for i in range(8, 8 + message_length * encoding_len):
-            message_bits += str(frames[i] & 1)
-
-        # Convert bits to string
-        chars = [chr(int(message_bits[i:i+encoding_len], 2)) for i in range(0, len(message_bits), encoding_len)]
-        message = "".join(chars)
-    return message

tests/test_wav.py

@@ -1,62 +0,0 @@
-#!/usr/bin/env python
-# Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
-#
-# For more information : https://github.com/cedricbonhomme/Stegano
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>
-
-__author__ = "Cedric Bonhomme"
-__version__ = "$Revision: 0.1 $"
-__date__ = "$Date: 2016/05/19 $"
-__license__ = "GPLv3"
-
-import os
-import unittest
-
-from stegano import wav
-
-
-class TestWav(unittest.TestCase):
-    def test_hide_empty_message(self):
-        """
-        Test hiding the empty string.
-        """
-        with self.assertRaises(AssertionError):
-            wav.hide("./tests/sample-files/free-software-song.wav", "", "./audio.wav")
-
-    def test_hide_and_reveal(self):
-        messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
-
-        for message in messages_to_hide:
-            wav.hide("./tests/sample-files/free-software-song.wav", message, "./audio.wav")
-            clear_message = wav.reveal("./audio.wav")
-
-            self.assertEqual(message, clear_message)
-
-    def test_with_too_long_message(self):
-        with open("./tests/sample-files/lorem_ipsum.txt") as f:
-            message = f.read()
-        with self.assertRaises(AssertionError):
-            wav.hide("./tests/sample-files/free-software-song.wav", message, "./audio.wav")
-
-    def tearDown(self):
-        try:
-            os.unlink("./audio.wav")
-        except Exception:
-            pass
-
-
-if __name__ == "__main__":
-    unittest.main()