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chg: updated releases note.

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Cédric Bonhomme 2021-11-29 22:58:41 +01:00
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7
CHANGELOG.md
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@ -1,6 +1,13 @@
## Release History
### 0.10.0 (2021-11-29)
* 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.

1
CONTRIBUTORS.md
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@ -14,5 +14,6 @@
- panni <panni@fragstore.net>
- Peter Justin <peter@peterjustin.me>
- Christophe Goessen - https://github.com/cgoessen
- thundersparkf - https://github.com/thundersparkf
And thank you to the testers!

15
docs/module.rst
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@ -9,8 +9,7 @@ LSB method
.. code-block:: python
Python 3.5.1 (default, Dec 7 2015, 11:33:57)
[GCC 4.9.2] on linux
Python 3.10.0 (default, Oct 17 2021, 09:02:57) [GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from stegano import lsb
>>> secret = lsb.hide("./tests/sample-files/Lenna.png", "Hello world!")
@ -27,8 +26,7 @@ Sets are used in order to select the pixels where the message will be hidden.
.. code-block:: python
Python 3.5.1 (default, Dec 7 2015, 11:33:57)
[GCC 4.9.2] on linux
Python 3.10.0 (default, Oct 17 2021, 09:02:57) [GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from stegano import lsbset
>>> from stegano.lsbset import generators
@ -94,6 +92,12 @@ Sets are used in order to select the pixels where the message will be hidden.
syracuse
Generate the sequence of Syracuse.
shi_tomashi Shi-Tomachi corner generator of the given points
https://docs.opencv.org/4.x/d4/d8c/tutorial_py_shi_tomasi.html
triangular_numbers Triangular numbers: a(n) = C(n+1,2) = n(n+1)/2 = 0+1+2+...+n.
http://oeis.org/A000217
Description field of the image
@ -103,8 +107,7 @@ For JPEG and TIFF images.
.. code-block:: python
Python 3.5.1 (default, Dec 7 2015, 11:33:57)
[GCC 4.9.2] on linux
Python 3.10.0 (default, Oct 17 2021, 09:02:57) [GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from stegano import exifHeader
>>> secret = exifHeader.hide("./tests/sample-files/20160505T130442.jpg",

123
poetry.lock generated
View file

@ -27,7 +27,7 @@ python-versions = "*"
[[package]]
name = "charset-normalizer"
version = "2.0.7"
version = "2.0.8"
description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
category = "dev"
optional = false
@ -46,7 +46,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
[[package]]
name = "coverage"
version = "6.1.2"
version = "6.2"
description = "Code coverage measurement for Python"
category = "dev"
optional = false
@ -299,7 +299,7 @@ python-versions = "*"
[[package]]
name = "sphinx"
version = "4.3.0"
version = "4.3.1"
description = "Python documentation generator"
category = "dev"
optional = false
@ -447,61 +447,61 @@ certifi = [
{file = "certifi-2021.10.8.tar.gz", hash = "sha256:78884e7c1d4b00ce3cea67b44566851c4343c120abd683433ce934a68ea58872"},
]
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]
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2
pyproject.toml
View file

@ -1,6 +1,6 @@
[tool.poetry]
name = "stegano"
version = "0.9.9"
version = "0.10.0"
description = "A pure Python Steganography module."
authors = [
"Cédric Bonhomme <cedric@cedricbonhomme.org>"

22
stegano/lsbset/generators.py
View file

@ -22,18 +22,19 @@
__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.3 $"
__date__ = "$Date: 2011/12/28 $"
__revision__ = "$Date: 2019/06/04 $"
__revision__ = "$Date: 2021/11/29 $"
__license__ = "GPLv3"
import itertools
import cv2
import numpy as np
import math
from typing import Dict, Iterator, List, Any, Union
from typing import Dict, Iterator, List, Any
def identity() -> Iterator[int]:
"""f(x) = x"""
"""f(x) = x
"""
n = 0
while True:
yield n
@ -109,7 +110,8 @@ def carmichael() -> Iterator[int]:
def ackermann_slow(m: int, n: int) -> int:
"""Ackermann number."""
"""Ackermann number.
"""
if m == 0:
return n + 1
elif n == 0:
@ -119,7 +121,8 @@ def ackermann_slow(m: int, n: int) -> int:
def ackermann_naive(m: int) -> Iterator[int]:
"""Naive Ackermann encapsulated in a generator"""
"""Naive Ackermann encapsulated in a generator.
"""
n = 0
while True:
yield ackermann_slow(m, n)
@ -127,7 +130,8 @@ def ackermann_naive(m: int) -> Iterator[int]:
def ackermann_fast(m: int, n: int) -> int:
"""Ackermann number."""
"""Ackermann number.
"""
while m >= 4:
if n == 0:
n = 1
@ -145,7 +149,8 @@ def ackermann_fast(m: int, n: int) -> int:
def ackermann(m: int) -> Iterator[int]:
"""Ackermann encapsulated in a generator."""
"""Ackermann encapsulated in a generator.
"""
n = 0
while True:
yield ackermann_fast(m, n)
@ -163,7 +168,8 @@ def fibonacci() -> Iterator[int]:
def log_gen() -> Iterator[int]:
"""Logarithmic generator."""
"""Logarithmic generator.
"""
y = 1
while True:
adder = max(1, math.pow(10, int(math.log10(y))))

12
tests/test_lsb.py
View file

@ -40,7 +40,7 @@ class TestLSB(unittest.TestCase):
Test hiding the empty string.
"""
with self.assertRaises(AssertionError):
secret = lsb.hide("./tests/sample-files/Lenna.png", "")
lsb.hide("./tests/sample-files/Lenna.png", "")
def test_hide_and_reveal(self):
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
@ -76,7 +76,7 @@ class TestLSB(unittest.TestCase):
@patch("builtins.input", return_value="y")
def test_manual_convert_rgb(self, input):
message_to_hide = "I love 🍕 and 🍫!"
secret = lsb.hide(
lsb.hide(
"./tests/sample-files/Lenna-grayscale.png",
message_to_hide,
encoding="UTF-32LE",
@ -86,7 +86,7 @@ class TestLSB(unittest.TestCase):
def test_refuse_convert_rgb(self, input):
message_to_hide = "I love 🍕 and 🍫!"
with self.assertRaises(Exception):
secret = lsb.hide(
lsb.hide(
"./tests/sample-files/Lenna-grayscale.png",
message_to_hide,
encoding="UTF-32LE",
@ -94,7 +94,7 @@ class TestLSB(unittest.TestCase):
def test_auto_convert_rgb(self):
message_to_hide = "I love 🍕 and 🍫!"
secret = lsb.hide(
lsb.hide(
"./tests/sample-files/Lenna-grayscale.png",
message_to_hide,
encoding="UTF-32LE",
@ -130,7 +130,7 @@ class TestLSB(unittest.TestCase):
self.assertEqual(message, message1)
try:
os.unlink("./file1")
except:
except Exception:
pass
def test_with_too_long_message(self):
@ -170,7 +170,7 @@ class TestLSB(unittest.TestCase):
def tearDown(self):
try:
os.unlink("./image.png")
except:
except Exception:
pass

22
tests/test_lsbset.py
View file

@ -2,7 +2,7 @@
# -*- coding: utf-8 -*-
# Stegano - Stegano is a pure Python steganography module.
# Copyright (C) 2010-2017 Cédric Bonhomme - https://www.cedricbonhomme.org
# Copyright (C) 2010-2021 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://git.sr.ht/~cedric/stegano
#
@ -20,9 +20,9 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>
__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.4 $"
__version__ = "$Revision: 0.5 $"
__date__ = "$Date: 2016/04/13 $"
__revision__ = "$Date: 2017/05/04 $"
__revision__ = "$Date: 2021/11/29 $"
__license__ = "GPLv3"
import io
@ -40,9 +40,7 @@ class TestLSBSet(unittest.TestCase):
Test hiding the empty string.
"""
with self.assertRaises(AssertionError):
secret = lsbset.hide(
"./tests/sample-files/Lenna.png", "", generators.eratosthenes()
)
lsbset.hide("./tests/sample-files/Lenna.png", "", generators.eratosthenes())
def test_hide_and_reveal(self):
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
@ -128,7 +126,7 @@ class TestLSBSet(unittest.TestCase):
@patch("builtins.input", return_value="y")
def test_manual_convert_rgb(self, input):
message_to_hide = "Hello World!"
secret = lsbset.hide(
lsbset.hide(
"./tests/sample-files/Lenna-grayscale.png",
message_to_hide,
generators.eratosthenes(),
@ -138,7 +136,7 @@ class TestLSBSet(unittest.TestCase):
def test_refuse_convert_rgb(self, input):
message_to_hide = "Hello World!"
with self.assertRaises(Exception):
secret = lsbset.hide(
lsbset.hide(
"./tests/sample-files/Lenna-grayscale.png",
message_to_hide,
generators.eratosthenes(),
@ -163,7 +161,7 @@ class TestLSBSet(unittest.TestCase):
def test_auto_convert_rgb(self):
message_to_hide = "Hello World!"
secret = lsbset.hide(
lsbset.hide(
"./tests/sample-files/Lenna-grayscale.png",
message_to_hide,
generators.eratosthenes(),
@ -187,12 +185,12 @@ class TestLSBSet(unittest.TestCase):
secret.save("./image.png")
with self.assertRaises(IndexError):
clear_message = lsbset.reveal("./image.png", generators.identity())
lsbset.reveal("./image.png", generators.identity())
def test_with_unknown_generator(self):
message_to_hide = "Hello World!"
with self.assertRaises(AttributeError):
secret = lsbset.hide(
lsbset.hide(
"./tests/sample-files/Lenna.png",
message_to_hide,
generators.eratosthene(),
@ -201,7 +199,7 @@ class TestLSBSet(unittest.TestCase):
def tearDown(self):
try:
os.unlink("./image.png")
except:
except Exception:
pass