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No commits in common. "master" and "v0.11.1" have entirely different histories.

39 changed files with 904 additions and 1224 deletions

42
.builds/debian.yml Normal file
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@ -0,0 +1,42 @@
image: debian/bullseye
sources:
- https://git.sr.ht/~cedric/stegano
packages:
- python3
- python3-dev
- python3-pip
- python3-setuptools
- python3-venv
- rustc
- cargo
- libffi-dev
- libssl-dev
- libjpeg-dev
- libpng-dev
- libfreetype6-dev
- ffmpeg
- libsm6
- libxext6
environment:
project: stegano
tasks:
- dependencies: |
pip3 install --user poetry
export PATH="$PATH:/home/build/.local/bin"
cd ${project}
poetry install
- lint: |
export PATH="$PATH:/home/build/.local/bin"
cd ${project}
# stop the build if there are Python syntax errors or undefined names
poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
# exit-zero treats all errors as warnings.
poetry run flake8 . --count --max-complexity=10 --max-line-length=127 --statistics
- test: |
export PATH="$PATH:/home/build/.local/bin"
cd ${project}
poetry run nose2 -v --pretty-assert
- typecheck: |
export PATH="$PATH:/home/build/.local/bin"
cd ${project}
poetry run mypy .

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@ -9,7 +9,7 @@ jobs:
strategy:
matrix:
python-version: ["3.10", "3.11", "3.12"]
python-version: [3.8, 3.9, 3.10.2]
steps:
- uses: actions/checkout@v1
@ -22,14 +22,14 @@ jobs:
- name: Install dependencies
run: |
pip install poetry
poetry install --with dev
poetry install
- name: Lint with flake8
run: |
# stop the build if there are Python syntax errors or undefined names
poetry run flake8 stegano --count --select=E9,F63,F7,F82 --show-source --statistics
poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
poetry run flake8 stegano --count --max-complexity=15 --max-line-length=127 --statistics
poetry run flake8 . --count --max-complexity=15 --max-line-length=127 --statistics
- name: Test with pytest
run: |
@ -37,6 +37,6 @@ jobs:
env:
testing: actions
# - name: Type check with mypy
# run: |
# poetry run mypy .
- name: Type check with mypy
run: |
poetry run mypy .

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@ -1,27 +0,0 @@
on:
release:
types:
- published
name: release
jobs:
pypi-publish:
name: Upload release to PyPI
runs-on: ubuntu-latest
environment:
name: pypi
url: https://pypi.org/p/Stegano
permissions:
id-token: write # IMPORTANT: this permission is mandatory for trusted publishing
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Install Poetry
run: python -m pip install --upgrade pip poetry
- name: Build artifacts
run: poetry build
- name: Publish package distributions to PyPI
uses: pypa/gh-action-pypi-publish@release/v1

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@ -1,36 +0,0 @@
ci:
autoupdate_schedule: monthly
repos:
- repo: https://github.com/asottile/pyupgrade
rev: v3.3.1
hooks:
- id: pyupgrade
args: ["--py37-plus"]
- repo: https://github.com/PyCQA/isort
rev: 5.12.0
hooks:
- id: isort
- repo: https://github.com/psf/black
rev: 22.3.0
hooks:
- id: black
- repo: https://github.com/PyCQA/flake8
rev: 6.1.0
hooks:
- id: flake8
additional_dependencies:
- flake8-bugbear
- flake8-implicit-str-concat
args: ["--max-line-length=125"]
- repo: https://github.com/pre-commit/pre-commit-hooks
rev: v4.1.0
hooks:
- id: fix-byte-order-marker
- id: trailing-whitespace
exclude: .md
- id: end-of-file-fixer
exclude: tests/.*
- repo: https://github.com/pypa/pip-audit
rev: v2.7.3
hooks:
- id: pip-audit

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@ -1,22 +0,0 @@
# .readthedocs.yaml
# Read the Docs configuration file
# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
# Required
version: 2
# Set the version of Python and other tools you might need
build:
os: ubuntu-22.04
tools:
python: "3.11"
# Build documentation in the docs/ directory with Sphinx
sphinx:
configuration: docs/conf.py
# We recommend specifying your dependencies to enable reproducible builds:
# https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
python:
install:
- requirements: docs/requirements.txt

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@ -1,251 +1,216 @@
## Release History
### 1.0.1 (2025-05-03)
- Improved the packaging configuration for the command line (stegano.console).
### 1.0.0 (2025-04-26)
- Updated dependencies.
- Improved the packaging configuration.
- Fixed typing errors.
### 0.11.5 (2025-02-13)
- Updated dependencies.
- Aligned pyproject.toml with the standard specification.
- Publishing to PyPI using a Trusted Publisher.
### 0.11.4 (2024-09-07)
- Added a parameter, close_file, to lsb.reveal in order to
specify if the file must be closed at the end of the processing.
### 0.11.3 (2024-01-02)
- Stegano now supports Python 3.12. Support of Python 3.8 has been removed.
### 0.11.2 (2023-05-23)
- improved typing of various functions;
- updated dependencies.
### 0.11.1 (2022-11-20)
- Fixed a bug in the command line when no sub-command is specified.
* Fixed a bug in the command line when no sub-command is specified.
### 0.11.0 (2022-11-20)
- Reduced memory footprint and processing speed,
* Reduced memory footprint and processing speed,
the modules ``lsb`` and ``lsbset`` have been merged
([PR #34](https://github.com/cedricbonhomme/Stegano/pull/34)).
### 0.10.2 (2022-01-13)
- Stegano now uses Pillow 9.0.0 (CVE-2022-22815).
* Stegano now uses Pillow 9.0.0 (CVE-2022-22815).
### 0.10.1 (2021-11-30)
- Stegano now uses OpenCV Python 4.5.4 abd Numpy 1.21.4.
* Stegano now uses OpenCV Python 4.5.4 abd Numpy 1.21.4.
### 0.10.0 (2021-11-29)
- new: Implemented Shi-Tomashi corner generator
* new: Implemented Shi-Tomashi corner generator
([PR #32](https://github.com/cedricbonhomme/Stegano/pull/32)).
Implemented by thundersparkf (see CONTRIBUTORS.md file).
### 0.9.9 (2021-07-02)
- Stegano now uses Pillow 8.3.0.
* Stegano now uses Pillow 8.3.0.
### 0.9.8 (2019-12-20)
- Stegano is now using poetry;
- minor improvements to the command line.
* Stegano is now using poetry;
* minor improvements to the command line.
### 0.9.7 (2019-10-27)
- fixed markdown of the previous release.
* fixed markdown of the previous release.
### 0.9.6 (2019-10-27)
- fixed markdown of the previous release;
* fixed markdown of the previous release;
### 0.9.5 (2019-10-27)
- updated dependencies;
- home page of the project is now: https://github.com/cedricbonhomme/Stegano
* updated dependencies;
* home page of the project is now: https://git.sr.ht/~cedric/Stegano
### 0.9.4 (2019-06-05)
- new: Implemented LFSR generator (with tests and CLI)
* new: Implemented LFSR generator (with tests and CLI)
([PR #27](https://github.com/cedricbonhomme/Stegano/pull/27))
- new: Implemented Ackermann generators CLI interface
* new: Implemented Ackermann generators CLI interface
([PR #26](https://github.com/cedricbonhomme/Stegano/pull/26))
- new: The Ackermann functions are not actual generators
* new: The Ackermann functions are not actual generators
([#24](https://github.com/cedricbonhomme/Stegano/issues/24))
- new: add a shift parameter for the lsbmodule
* new: add a shift parameter for the lsbmodule
([#25](https://github.com/cedricbonhomme/Stegano/issues/25))
- fix: lsbset.hide cause .png transparent area lost
* fix: lsbset.hide cause .png transparent area lost
([#23](https://github.com/cedricbonhomme/Stegano/issues/23))
### 0.9.3 (2019-04-10)
- it is now possible to either pass the location of an image or directly pass
* it is now possible to either pass the location of an image or directly pass
an already opened Image.Image to the hide and reveal methods;
- code re-formatted a bit with black.
* code re-formatted a bit with black.
### 0.9.2 (2019-04-04)
- updated Pillow dependency to version 6.0.0 in order to fix a bug when opening
* updated Pillow dependency to version 6.0.0 in order to fix a bug when opening
some PNG files (https://github.com/python-pillow/Pillow/issues/3557).
### 0.9.1 (2019-03-06)
- updated Pillow dependency in order to fix a bug when opening some PNG files.
* updated Pillow dependency in order to fix a bug when opening some PNG files.
### 0.9.0 (2018-12-18)
- added the possibility to shift the encoded bits when using the lsbset module.
* added the possibility to shift the encoded bits when using the lsbset module.
### 0.8.6 (2018-11-05)
- fixed a potential security issue related to CVE-2018-18074.
* fixed a potential security issue related to CVE-2018-18074.
### 0.8.5 (2018-04-18)
- Fixed an encoding problem which occured on Windows during the installation
* Fixed an encoding problem which occured on Windows during the installation
of the module.
### 0.8.4 (2018-02-28)
- Stegano is ready for use with pipenv and pipsi.
* Stegano is ready for use with pipenv and pipsi.
### 0.8.3 (2018-02-23)
- the recommended way to install Stegano is now to use pipenv.
* the recommended way to install Stegano is now to use pipenv.
### 0.8.2 (2017-12-20)
- Fixed a bug with the new 'encoding' function when using Stegano as a command
* Fixed a bug with the new 'encoding' function when using Stegano as a command
line tool. No default value was set. Default value is UTF-8.
### 0.8.1 (2017-05-16)
- it is now possible to specify the encoding (UTF-8 or UTF-32LE) of the message
* it is now possible to specify the encoding (UTF-8 or UTF-32LE) of the message
to hide/reveal through the command line;
- the help of the command line now displays the available choices for the
* the help of the command line now displays the available choices for the
arguments, if it is necessary (list of available encodings, list of available
generators);
- tests expected results lies now in a dedicated folder;
- a script has been added in order to get proper exit code check for mypy.
* tests expected results lies now in a dedicated folder;
* a script has been added in order to get proper exit code check for mypy.
### 0.8 (2017-05-06)
- updated command line. All commands are now prefixed with *stegano-*;
- improved type hints;
- it is possible to load and save images from and to file objects (BytesIO);
- improved checks when revealing a message with the lsbset module fails.
* updated command line. All commands are now prefixed with *stegano-*;
* improved type hints;
* it is possible to load and save images from and to file objects (BytesIO);
* improved checks when revealing a message with the lsbset module fails.
### 0.7.1 (2017-05-05)
- improved generators for the lsb-set module;
- improved tests for the generators;
- improved type hints.
* improved generators for the lsb-set module;
* improved tests for the generators;
* improved type hints.
### 0.7 (2017-05-04)
- unicode is now supported. By default UTF-8 encoding is used. UTF-32LE can also
* unicode is now supported. By default UTF-8 encoding is used. UTF-32LE can also
be used to hide non-ASCII characters. UTF-8 (8 bits) is the default choice
since it is possible to hide longer messages with it.
- improved checks with type hints.
* improved checks with type hints.
### 0.6.9 (2017-03-10)
- introduces some type hints (PEP 484);
- more tests for the generators and for the tools module;
- updated descriptions of generators;
- fixed a bug with a generator that has been previously renamed.
* introduces some type hints (PEP 484);
* more tests for the generators and for the tools module;
* updated descriptions of generators;
* fixed a bug with a generator that has been previously renamed.
### 0.6.8 (2017-03-08)
- bugfix: fixed #12: Error when revealing a hidden binary file in an image.
* bugfix: fixed #12: Error when revealing a hidden binary file in an image.
### 0.6.7 (2017-02-21)
- bugfix: added missing dependency in the setup.py file.
* bugfix: added missing dependency in the setup.py file.
### 0.6.6 (2017-02-20)
- improved docstrings for the desciption of the generators;
- improved the command which displays the list of generators.
* improved docstrings for the desciption of the generators;
* improved the command which displays the list of generators.
### 0.6.5 (2017-02-16)
- added a command to list all available generators for the lsb-set module;
- test when the data image is coming via byte stream, for the lsb module.
* added a command to list all available generators for the lsb-set module;
* test when the data image is coming via byte stream, for the lsb module.
### 0.6.4 (2017-02-06)
- a command line for the 'red' module has been added;
- bugfix: fixed a bug in the lsb-set command line when the generator wasn't
* a command line for the 'red' module has been added;
* bugfix: fixed a bug in the lsb-set command line when the generator wasn't
specified by the user.
### 0.6.3 (2017-01-29)
- Support for transparent PNG images has been added (lsb and lsbset modules).
* Support for transparent PNG images has been added (lsb and lsbset modules).
### 0.6.2 (2017-01-19)
- bugfix: solved a bug when the image data is coming via byte streams (ByteIO),
* bugfix: solved a bug when the image data is coming via byte streams (ByteIO),
for the exifHeader hiding method.
### 0.6.1 (2016-08-25)
- reorganization of the steganalysis sub-module.
* reorganization of the steganalysis sub-module.
### 0.6 (2016-08-04)
- improvements of the command line of Stéganô. The use of Stéganô through the
* improvements of the command line of Stéganô. The use of Stéganô through the
command line has slightly changed ('hide' and 'reveal' are now sub-parameters
of the command line). No changes if you use Stéganô as a module in your
software. The documentation has been updated accordingly.
@ -253,66 +218,66 @@
### 0.5.5 (2016-08-03)
- bugfix: Incorrect padding size in `base642string` in tools.base642binary().
* bugfix: Incorrect padding size in `base642string` in tools.base642binary().
### 0.5.4 (2016-05-22)
- the generator provided to the functions lsbset.hide() and lsbset.reveal() is
* the generator provided to the functions lsbset.hide() and lsbset.reveal() is
now a function. This is more convenient for a user who wants to use a custom
generator (not in the module lsbset.generators).
- performance improvements for the lsb and lsbset modules.
* performance improvements for the lsb and lsbset modules.
### 0.5.3 (2016-05-19)
- reorganization of all modules. No impact for the users of Stegano.
* reorganization of all modules. No impact for the users of Stegano.
### 0.5.2 (2016-05-18)
- improvements and bug fixes for the exifHeader module;
- added unit tests for the exifHeader module;
- improvements of the documentation.
* improvements and bug fixes for the exifHeader module;
* added unit tests for the exifHeader module;
* improvements of the documentation.
### 0.5.1 (2016-04-16)
- minor improvements and bug fixes;
- added unit tests for the slsb and slsbset modules.
* minor improvements and bug fixes;
* added unit tests for the slsb and slsbset modules.
### 0.5 (2016-03-18)
- management of greyscale images.
* management of greyscale images.
### 0.4.6 (2016-03-12)
- bugfix when the length of the message to hide is not divisible by 3,
* bugfix when the length of the message to hide is not divisible by 3,
for the slsb and slsbset module.
### 0.4.5 (2015-12-23)
- bugfix.
* bugfix.
### 0.4.4 (2015-12-23)
- new project home page;
- minor updated to the documentation.
* new project home page;
* minor updated to the documentation.
### 0.4.3 (2015-10-06)
- bug fixes for Python 3;
- bug fixes in the scripts in *./bin*.
* bug fixes for Python 3;
* bug fixes in the scripts in *./bin*.
### 0.4.2 (2015-10-05)
- first stable release on PypI.
* first stable release on PypI.
### 0.4 (2012-01-02)
@ -326,16 +291,16 @@ Python codes as a Python module or as a program in your scripts.
### 0.3 (2011-04-15)
- you can now use Stéganô as a library in your Python program;
* you can now use Stéganô as a library in your Python program;
(python setup.py install) or as a 'program' thanks to the scripts provided
in the bin directory;
- new documentation (reStructuredText) comes with Stéganô.
* new documentation (reStructuredText) comes with Stéganô.
### 0.2 (2011-03-24)
- this release introduces some bugfixes and a major speed improvement of the
* this release introduces some bugfixes and a major speed improvement of the
*reveal* function for the LSB method. Moreover it is now possible to hide a
binary file (ogg, executable, etc.);
- a new technique for hiding/revealing a message in a JPEG picture by using the
* a new technique for hiding/revealing a message in a JPEG picture by using the
description field of the image is provided.

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@ -16,6 +16,5 @@
- panni <panni@fragstore.net>
- Peter Justin <peter@peterjustin.me>
- thundersparkf - https://github.com/thundersparkf
- Mickaël Schoentgen <mschoentgen@nuxeo.com>
And thank you to the testers!

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@ -1,8 +1,9 @@
# Stegano
[![builds.sr.ht status](https://builds.sr.ht/~cedric/stegano.svg)](https://builds.sr.ht/~cedric/stegano)
[![Workflow](https://github.com/cedricbonhomme/Stegano/workflows/Python%20application/badge.svg?style=flat-square)](https://github.com/cedricbonhomme/Stegano/actions?query=workflow%3A%22Python+application%22)
[Stegano](https://github.com/cedricbonhomme/Stegano), a pure Python Steganography
[Stegano](https://sr.ht/~cedric/stegano), a pure Python Steganography
module.
Steganography is the art and science of writing hidden messages in such a way
@ -11,6 +12,9 @@ existence of the message, a form of security through obscurity. Consequently,
functions provided by Stegano only hide messages, without encryption.
Steganography is often used with cryptography.
For reporting issues, visit the tracker here:
https://todo.sr.ht/~cedric/stegano
## Installation
@ -93,23 +97,11 @@ Contributions are welcome. If you want to contribute to Stegano I highly
recommend you to install it in a Python virtual environment with poetry.
## Donations
If you wish and if you like Stegano, you can donate via GitHub Sponsors:
[![GitHub Sponsors](https://img.shields.io/github/sponsors/cedricbonhomme)](https://github.com/sponsors/cedricbonhomme)
or with Bitcoin to this address:
bc1q56u6sj7cvlwu58v5lemljcvkh7v2gc3tv8mj0e
Thank you !
## License
This software is licensed under
[GNU General Public License version 3](https://www.gnu.org/licenses/gpl-3.0.html)
Copyright (C) 2010-2025 [Cédric Bonhomme](https://www.cedricbonhomme.org)
Copyright (C) 2010-2022 [Cédric Bonhomme](https://www.cedricbonhomme.org)
For more information, [the list of authors and contributors](CONTRIBUTORS.md) is available.

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@ -1,6 +1,8 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
#
@ -24,7 +26,6 @@ __revision__ = "$Date: 2019/06/04 $"
__license__ = "GPLv3"
import inspect
import crayons
try:
@ -33,10 +34,10 @@ try:
except Exception:
print("Install stegano: pipx install Stegano")
import argparse
from stegano import tools
import argparse
class ValidateGenerator(argparse.Action):
def __call__(self, parser, args, values, option_string=None):
@ -75,7 +76,7 @@ def main():
choices=tools.ENCODINGS.keys(),
default="UTF-8",
help="Specify the encoding of the message to hide."
" UTF-8 (default) or UTF-32LE.",
+ " UTF-8 (default) or UTF-32LE.",
)
# Generator
@ -130,7 +131,7 @@ def main():
choices=tools.ENCODINGS.keys(),
default="UTF-8",
help="Specify the encoding of the message to reveal."
" UTF-8 (default) or UTF-32LE.",
+ " UTF-8 (default) or UTF-32LE.",
)
# Generator
@ -178,7 +179,7 @@ def main():
generator = getattr(generators, arguments.generator_function[0])()
except AttributeError:
print(f"Unknown generator: {arguments.generator_function}")
print("Unknown generator: {}".format(arguments.generator_function))
exit(1)
if arguments.command == "hide":
@ -222,6 +223,6 @@ def main():
all_generators = inspect.getmembers(generators, inspect.isfunction)
for generator in all_generators:
print("Generator id:")
print(f" {crayons.green(generator[0], bold=True)}")
print(" {}".format(crayons.green(generator[0], bold=True)))
print("Desciption:")
print(f" {generator[1].__doc__}")
print(" {}".format(generator[1].__doc__))

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@ -1,6 +1,8 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
#
@ -22,10 +24,10 @@ __version__ = "$Revision: 0.7 $"
__date__ = "$Date: 2016/08/25 $"
__license__ = "GPLv3"
import argparse
from PIL import Image
import argparse
try:
from stegano.steganalysis import parity
except Exception:

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@ -1,6 +1,8 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
#

View file

@ -1,6 +1,8 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
#
@ -23,10 +25,10 @@ __date__ = "$Date: 2016/08/26 $"
__revision__ = "$Date: 2016/08/26 $"
__license__ = "GPLv3"
import argparse
from PIL import Image
import argparse
try:
from stegano.steganalysis import statistics
except Exception:

View file

@ -1,3 +1,4 @@
# -*- coding: utf-8 -*-
#
# Stéganô documentation build configuration file, created by
# sphinx-quickstart on Wed Jul 25 13:33:39 2012.
@ -9,13 +10,17 @@
#
# All configuration values have a default; values that are commented out
# serve to show the default.
# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
# documentation root, use os.path.abspath to make it absolute, like shown here.
# sys.path.insert(0, os.path.abspath('.'))
# -- General configuration -----------------------------------------------------
# If your documentation needs a minimal Sphinx version, state it here.
# needs_sphinx = '1.0'
# Add any Sphinx extension module names here, as strings. They can be extensions
# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
extensions = []
@ -34,7 +39,7 @@ master_doc = "index"
# General information about the project.
project = "Stegano"
copyright = "2010-2025, Cédric Bonhomme"
copyright = "2010-2022, Cédric Bonhomme"
author = "Cédric Bonhomme <cedric@cedricbonhomme.org>"
# The version info for the project you're documenting, acts as replacement for
@ -165,6 +170,6 @@ latex_documents = [
latex_show_urls = True
latex_show_pagerefs = True
ADDITIONAL_PREAMBLE = r"""
ADDITIONAL_PREAMBLE = """
\setcounter{tocdepth}{3}
"""

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@ -6,6 +6,10 @@
Presentation
============
.. image:: https://builds.sr.ht/~cedric/stegano.svg
:target: https://builds.sr.ht/~cedric/stegano
Stegano_ is a pure Python steganography_ module.
Steganography is the art and science of writing hidden messages in such a way
@ -49,7 +53,7 @@ Tutorial
steganalysis
You can have a look at the
`unit tests <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
`unit tests <https://git.sr.ht/~cedric/stegano/tree/master/tests>`_.
License
@ -73,7 +77,7 @@ Contact
.. _Python: https://www.python.org
.. _Stegano: https://github.com/cedricbonhomme/Stegano
.. _Stegano: https://sr.ht/~cedric/stegano
.. _`Pillow`: https://pypi.python.org/pypi/Pillow
.. _`piexif`: https://pypi.python.org/pypi/piexif
.. _steganography: http://en.wikipedia.org/wiki/Steganography

View file

@ -12,4 +12,7 @@ If you want to retrieve the source code (with the unit tests):
.. code-block:: bash
$ git clone https://github.com/cedricbonhomme/Stegano
$ git clone https://git.sr.ht/~cedric/stegano
.. image:: https://builds.sr.ht/~cedric/stegano.svg
:target: https://builds.sr.ht/~cedric/stegano

View file

@ -2,7 +2,7 @@ Using Stegano as a Python module
================================
You can find more examples in the
`unit tests directory <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
`unit tests directory <https://git.sr.ht/~cedric/stegano/tree/master/tests>`_.
LSB method
----------

1437
poetry.lock generated

File diff suppressed because it is too large Load diff

View file

@ -1,79 +1,66 @@
[build-system]
requires = ["poetry-core>=2.0"]
build-backend = "poetry.core.masonry.api"
[project]
[tool.poetry]
name = "stegano"
version = "1.0.1"
version = "0.11.1"
description = "A pure Python Steganography module."
authors = [
{name = "Cédric Bonhomme", email= "cedric@cedricbonhomme.org"}
"Cédric Bonhomme <cedric@cedricbonhomme.org>"
]
license = "GPL-3.0-or-later"
readme = "README.md"
keywords = ["Steganography", "Security", "Stegano"]
dynamic = ["classifiers"]
homepage = "https://sr.ht/~cedric/stegano"
repository = "https://git.sr.ht/~cedric/stegano"
documentation = "https://stegano.readthedocs.io"
requires-python = ">=3.10,<4.0"
dependencies = [
"pillow (>=9.5,<11.0)",
"piexif (>=1.1.3)",
"crayons (>=0.4.0)",
"opencv-python (>=4.8.1.78)"
]
keywords = ["steganography", "security", "stegano"]
[project.urls]
Homepage = "https://github.com/cedricbonhomme/Stegano"
Changelog = "https://github.com/cedricbonhomme/Stegano/blob/master/CHANGELOG.md"
Repository = "https://github.com/cedricbonhomme/Stegano"
Documentation = "https://stegano.readthedocs.io"
[project.scripts]
stegano-lsb = "stegano.console.lsb:main"
stegano-red = "stegano.console.red:main"
stegano-steganalysis-parity = "stegano.console.parity:main"
stegano-steganalysis-statistics = "stegano.console.statistics:main"
[tool.poetry]
requires-poetry = ">=2.0"
classifiers = [
"Development Status :: 5 - Production/Stable",
"Environment :: Console",
"Intended Audience :: Developers",
"Intended Audience :: Science/Research",
"Topic :: Security",
"Operating System :: POSIX :: Linux",
"Operating System :: OS Independent",
"Programming Language :: Python :: 3.8",
"Programming Language :: Python :: 3.9",
"Programming Language :: Python :: 3.10",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)"
]
include = [
"README.md",
"COPYING",
"CHANGELOG.md",
"docs/**/*",
"bin/*"
]
[tool.poetry.scripts]
stegano-lsb = "bin.lsb:main"
stegano-red = "bin.red:main"
stegano-steganalysis-parity = "bin.parity:main"
stegano-steganalysis-statistics = "bin.statistics:main"
[tool.poetry.group.dev.dependencies]
mypy = "^1.8.0"
flake8 = "^6.0.0"
nose2 = "^0.14.0"
Sphinx = "^6.2.1"
pre-commit = "^3.6.0"
[tool.poetry.dependencies]
python = ">=3.8,<3.12"
pillow = "^9.2.0"
piexif = "^1.1.3"
crayons = "^0.4.0"
opencv-python = "^4.6.0.66"
[tool.poetry.dev-dependencies]
mypy = "^0.910"
flake8 = "^4.0.1"
nose2 = "^0.10.0"
Sphinx = "^4.2.0"
[tool.poetry.group.dev]
optional = true
[build-system]
requires = ["poetry>=0.12"]
build-backend = "poetry.masonry.api"
[tool.mypy]
python_version = "3.12"
python_version = "3.10"
check_untyped_defs = true
ignore_errors = false
ignore_missing_imports = true
@ -88,6 +75,3 @@ show_error_context = true
pretty = true
exclude = "build|dist|docs|stegano.egg-info"
[tool.isort]
profile = "black"

View file

@ -1,5 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from . import exifHeader, lsb, red, steganalysis
from . import red
from . import exifHeader
from . import lsb
from . import steganalysis
__all__ = ["red", "exifHeader", "lsb", "steganalysis"]

View file

@ -1,4 +1,5 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from .exifHeader import hide, reveal

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -24,7 +26,6 @@ __revision__ = "$Date: 2017/01/18 $"
__license__ = "GPLv3"
import piexif
from stegano import tools
@ -36,11 +37,11 @@ def hide(
img_format=None,
):
"""Hide a message (string) in an image."""
from base64 import b64encode
from zlib import compress
from base64 import b64encode
if secret_file is not None:
with open(secret_file) as f:
with open(secret_file, "r") as f:
secret_message = f.read()
try:

View file

@ -1,4 +1,5 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from .lsb import hide, reveal

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -24,11 +26,10 @@ __revision__ = "$Date: 2021/11/29 $"
__license__ = "GPLv3"
import itertools
import math
from typing import Any, Dict, Iterator, List
import cv2
import numpy as np
import math
from typing import Dict, Iterator, List, Any
def identity() -> Iterator[int]:
@ -72,7 +73,7 @@ def eratosthenes() -> Iterator[int]:
"""Generate the prime numbers with the sieve of Eratosthenes.
https://oeis.org/A000040
"""
d: Dict[int, List[int]] = {}
d = {} # type: Dict[int, List[int]]
for i in itertools.count(2):
if i in d:
for j in d[i]:
@ -89,7 +90,8 @@ def composite() -> Iterator[int]:
"""
p1 = 3
for p2 in eratosthenes():
yield from range(p1 + 1, p2)
for n in range(p1 + 1, p2):
yield n
p1 = p2
@ -223,7 +225,7 @@ def LFSR(m: int) -> Iterator[int]:
# Add the feedback bit
state.insert(0, feedback)
# Convert the registers to an int
out = sum(e * (2**i) for i, e in enumerate(state))
out = sum([e * (2**i) for i, e in enumerate(state)])
yield out
@ -242,7 +244,7 @@ def shi_tomashi(
gray, max_corners, quality, min_distance
)
corners_int: np.ndarray[Any, np.dtype[np.signedinteger[Any]]] = np.array(
np.intp(corners)
np.int0(corners)
)
i = 0
while True:

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -25,9 +27,8 @@ __license__ = "GPLv3"
from typing import IO, Iterator, Union
from stegano import tools
from .generators import identity
from stegano import tools
def hide(
@ -67,10 +68,9 @@ def reveal(
generator: Union[None, Iterator[int]] = None,
shift: int = 0,
encoding: str = "UTF-8",
close_file: bool = True,
):
"""Find a message in an image (with the LSB technique)."""
revealer = tools.Revealer(encoded_image, encoding, close_file)
revealer = tools.Revealer(encoded_image, encoding)
width = revealer.encoded_image.width
if not generator:

View file

@ -1,4 +1,5 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from .red import hide, reveal

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stéganô is a basic Python Steganography module.
# Copyright (C) 2010-2024 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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

View file

@ -1 +1,2 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -34,10 +36,7 @@ def steganalyse(img: Image.Image) -> Image.Image:
width, height = img.size
for row in range(height):
for col in range(width):
if pixel := img.getpixel((col, row)):
r, g, b = pixel[0:3]
else:
raise Exception("Error during steganlysis.")
r, g, b = img.getpixel((col, row))[0:3]
if r % 2 == 0:
r = 0
else:

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -24,7 +26,9 @@ __revision__ = "$Date: 2021/11/01 $"
__license__ = "GPLv3"
import typing
from collections import Counter, OrderedDict
from collections import Counter
from collections import OrderedDict
def steganalyse(img):
@ -32,7 +36,7 @@ def steganalyse(img):
Steganlysis of the LSB technique.
"""
width, height = img.size
colours_counter: typing.Counter[int] = Counter()
colours_counter = Counter() # type: typing.Counter[int]
for row in range(height):
for col in range(width):
r, g, b = img.getpixel((col, row))
@ -43,7 +47,7 @@ def steganalyse(img):
sorted(list(colours_counter.items()), key=lambda t: t[1])
)
colours: float = 0
colours = 0 # type: float
for colour in list(dict_colours.keys()):
colours += colour
colours = colours / len(dict_colours)

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -26,7 +28,7 @@ __license__ = "GPLv3"
import base64
import itertools
from functools import reduce
from typing import IO, List, Union
from typing import IO, Iterator, List, Tuple, Union
from PIL import Image
@ -74,7 +76,9 @@ def setlsb(component: int, bit: str) -> int:
return component & ~1 | int(bit)
def n_at_a_time(items: List[int], n: int, fillvalue: str):
def n_at_a_time(
items: List[int], n: int, fillvalue: str
) -> Iterator[Tuple[Union[int, str]]]:
"""Returns an iterator which groups n items at a time.
Any final partial tuple will be padded with the fillvalue
@ -130,7 +134,7 @@ class Hider:
if image.mode not in ["RGB", "RGBA"]:
if not auto_convert_rgb:
print(f"The mode of the image is not RGB. Mode is {image.mode}")
print("The mode of the image is not RGB. Mode is {}".format(image.mode))
answer = input("Convert the image to RGB ? [Y / n]\n") or "Y"
if answer.lower() == "n":
raise Exception("Not a RGB image.")
@ -150,7 +154,7 @@ class Hider:
if self._len_message_bits > npixels * 3:
raise Exception(
f"The message you want to hide is too long: {message_length}"
"The message you want to hide is too long: {}".format(message_length)
)
def encode_another_pixel(self):
@ -175,19 +179,13 @@ class Hider:
class Revealer:
def __init__(
self,
encoded_image: Union[str, IO[bytes]],
encoding: str = "UTF-8",
close_file: bool = True,
):
def __init__(self, encoded_image: Union[str, IO[bytes]], encoding: str = "UTF-8"):
self.encoded_image = open_image(encoded_image)
self._encoding_length = ENCODINGS[encoding]
self._buff, self._count = 0, 0
self._bitab: List[str] = []
self._limit: Union[None, int] = None
self.secret_message = ""
self.close_file = close_file
def decode_pixel(self, coordinate: tuple):
# pixel = [r, g, b] or [r,g,b,a]
@ -214,7 +212,6 @@ class Revealer:
self.secret_message = "".join(self._bitab)[
len(str(self._limit)) + 1 : # noqa: E203
]
if self.close_file:
self.encoded_image.close()
return True

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -23,9 +25,9 @@ __date__ = "$Date: 2016/05/17 $"
__revision__ = "$Date: 2017/01/18 $"
__license__ = "GPLv3"
import io
import os
import unittest
import io
from stegano import exifHeader

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -23,9 +25,8 @@ __date__ = "$Date: 2017/03/01 $"
__revision__ = "$Date: 2017/03/01 $"
__license__ = "GPLv3"
import itertools
import unittest
import itertools
import cv2
import numpy as np
@ -70,7 +71,7 @@ class TestGenerators(unittest.TestCase):
def test_eratosthenes(self):
"""Test the Eratosthenes sieve."""
with open("./tests/expected-results/eratosthenes") as f:
with open("./tests/expected-results/eratosthenes", "r") as f:
self.assertEqual(
tuple(itertools.islice(generators.eratosthenes(), 168)),
tuple(int(line) for line in f),
@ -78,7 +79,7 @@ class TestGenerators(unittest.TestCase):
def test_composite(self):
"""Test the composite sieve."""
with open("./tests/expected-results/composite") as f:
with open("./tests/expected-results/composite", "r") as f:
self.assertEqual(
tuple(itertools.islice(generators.composite(), 114)),
tuple(int(line) for line in f),
@ -86,7 +87,7 @@ class TestGenerators(unittest.TestCase):
def test_fermat(self):
"""Test the Fermat generator."""
with open("./tests/expected-results/fermat") as f:
with open("./tests/expected-results/fermat", "r") as f:
self.assertEqual(
tuple(itertools.islice(generators.fermat(), 9)),
tuple(int(line) for line in f),
@ -94,7 +95,7 @@ class TestGenerators(unittest.TestCase):
def test_triangular_numbers(self):
"""Test the Triangular numbers generator."""
with open("./tests/expected-results/triangular_numbers") as f:
with open("./tests/expected-results/triangular_numbers", "r") as f:
self.assertEqual(
tuple(itertools.islice(generators.triangular_numbers(), 54)),
tuple(int(line) for line in f),
@ -102,7 +103,7 @@ class TestGenerators(unittest.TestCase):
def test_mersenne(self):
"""Test the Mersenne generator."""
with open("./tests/expected-results/mersenne") as f:
with open("./tests/expected-results/mersenne", "r") as f:
self.assertEqual(
tuple(itertools.islice(generators.mersenne(), 20)),
tuple(int(line) for line in f),
@ -110,7 +111,7 @@ class TestGenerators(unittest.TestCase):
def test_carmichael(self):
"""Test the Carmichael generator."""
with open("./tests/expected-results/carmichael") as f:
with open("./tests/expected-results/carmichael", "r") as f:
self.assertEqual(
tuple(itertools.islice(generators.carmichael(), 33)),
tuple(int(line) for line in f),
@ -118,7 +119,7 @@ class TestGenerators(unittest.TestCase):
def test_ackermann_slow(self):
"""Test the Ackermann set."""
with open("./tests/expected-results/ackermann") as f:
with open("./tests/expected-results/ackermann", "r") as f:
self.assertEqual(generators.ackermann_slow(3, 1), int(f.readline()))
self.assertEqual(generators.ackermann_slow(3, 2), int(f.readline()))
@ -126,13 +127,13 @@ class TestGenerators(unittest.TestCase):
"""Test the Naive Ackermann generator"""
gen = generators.ackermann_naive(3)
next(gen)
with open("./tests/expected-results/ackermann") as f:
with open("./tests/expected-results/ackermann", "r") as f:
self.assertEqual(next(gen), int(f.readline()))
self.assertEqual(next(gen), int(f.readline()))
def test_ackermann_fast(self):
"""Test the Ackermann set."""
with open("./tests/expected-results/ackermann") as f:
with open("./tests/expected-results/ackermann", "r") as f:
self.assertEqual(generators.ackermann_fast(3, 1), int(f.readline()))
self.assertEqual(generators.ackermann_fast(3, 2), int(f.readline()))
self.assertEqual(generators.ackermann_fast(4, 1), int(f.readline()))
@ -141,13 +142,13 @@ class TestGenerators(unittest.TestCase):
"""Test the Ackermann generator"""
gen = generators.ackermann(3)
next(gen)
with open("./tests/expected-results/ackermann") as f:
with open("./tests/expected-results/ackermann", "r") as f:
self.assertEqual(next(gen), int(f.readline()))
self.assertEqual(next(gen), int(f.readline()))
def test_LFSR(self):
"""Test the LFSR generator"""
with open("./tests/expected-results/LFSR") as f:
with open("./tests/expected-results/LFSR", "r") as f:
self.assertEqual(
tuple(itertools.islice(generators.LFSR(2**8), 256)),
tuple(int(line) for line in f),
@ -174,8 +175,9 @@ class TestGenerators(unittest.TestCase):
test_file_reshaped = test_file.reshape(
int(test_file.shape[0]), int(test_file.shape[1])
)
res = np.testing.assert_allclose(corners, test_file_reshaped, rtol=1e-0, atol=0) # type: ignore
self.assertIsNone(res)
self.assertIsNone(
np.testing.assert_allclose(corners, test_file_reshaped, rtol=1e-0, atol=0)
)
@staticmethod
def shi_tomashi_reconfigure(

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2024 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -171,12 +173,7 @@ class TestLSB(unittest.TestCase):
@patch("builtins.input", return_value="n")
def test_refuse_convert_rgb(self, input):
message_to_hide = "Hello World!"
# lsb.hide(
# "./tests/sample-files/Lenna-grayscale.png",
# message_to_hide,
# generators.eratosthenes(),
# )
with self.assertRaisesRegex(Exception, "Not a RGB image."):
with self.assertRaises(Exception):
lsb.hide(
"./tests/sample-files/Lenna-grayscale.png",
message_to_hide,
@ -213,9 +210,7 @@ class TestLSB(unittest.TestCase):
with open("./tests/sample-files/lorem_ipsum.txt") as f:
message = f.read()
message += message * 2
with self.assertRaisesRegex(
Exception, "The message you want to hide is too long:"
):
with self.assertRaises(Exception):
lsb.hide("./tests/sample-files/Lenna.png", message, generators.identity())
def test_hide_and_reveal_with_bad_generator(self):

View file

@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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

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@ -1,9 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2017 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -26,10 +27,9 @@ __license__ = "GPLv3"
import unittest
from PIL import Image, ImageChops
from stegano import lsb
from stegano.steganalysis import parity, statistics
from PIL import Image, ImageChops
class TestSteganalysis(unittest.TestCase):

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@ -1,8 +1,10 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
# For more information : https://git.sr.ht/~cedric/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
@ -81,7 +83,7 @@ class TestTools(unittest.TestCase):
self.assertEqual(list(result), [(1, 2), (3, 4), (5, "X")])
def test_binary2base64(self):
with open("./tests/expected-results/binary2base64") as f:
with open("./tests/expected-results/binary2base64", "r") as f:
expected_value = f.read()
value = tools.binary2base64("tests/sample-files/free-software-song.ogg")
self.assertEqual(expected_value, value)