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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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@ -671,4 +671,4 @@ into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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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

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@ -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

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@ -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

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@ -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"

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@ -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"]

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

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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
@ -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:

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

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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
@ -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:

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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
@ -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:

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

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@ -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

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

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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
@ -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:

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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
@ -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)

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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
@ -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]
@ -214,8 +212,7 @@ class Revealer:
self.secret_message = "".join(self._bitab)[
len(str(self._limit)) + 1 : # noqa: E203
]
if self.close_file:
self.encoded_image.close()
self.encoded_image.close()
return True

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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
@ -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

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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
@ -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(

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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) 2010-2024 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):

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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

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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)