mirror of
https://github.com/cedricbonhomme/Stegano.git
synced 2025-05-12 17:18:30 +02:00
106 lines
4.3 KiB
Python
Executable file
106 lines
4.3 KiB
Python
Executable file
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Stegano - Stegano is a pure Python steganography module.
|
|
# Copyright (C) 2010-2019 Cédric Bonhomme - https://www.cedricbonhomme.org
|
|
#
|
|
# For more information : https://github.com/cedricbonhomme/Stegano
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
|
|
__author__ = "Cedric Bonhomme"
|
|
__version__ = "$Revision: 0.8 $"
|
|
__date__ = "$Date: 2016/08/04 $"
|
|
__revision__ = "$Date: 2019/06/01 $"
|
|
__license__ = "GPLv3"
|
|
|
|
import argparse
|
|
|
|
try:
|
|
from stegano import lsb
|
|
except:
|
|
print("Install Stegano: pipx install Stegano")
|
|
|
|
from stegano import tools
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(prog='stegano-lsb')
|
|
subparsers = parser.add_subparsers(help='sub-command help', dest='command')
|
|
|
|
# Subparser: Hide
|
|
parser_hide = subparsers.add_parser('hide', help='hide help')
|
|
# Original image
|
|
parser_hide.add_argument("-i", "--input", dest="input_image_file",
|
|
required=True, help="Input image file.")
|
|
parser_hide.add_argument("-e", "--encoding", dest="encoding",
|
|
choices=tools.ENCODINGS.keys(), default='UTF-8',
|
|
help="Specify the encoding of the message to hide." +
|
|
" UTF-8 (default) or UTF-32LE.")
|
|
|
|
group_secret = parser_hide.add_mutually_exclusive_group(required=True)
|
|
# Non binary secret message to hide
|
|
group_secret.add_argument("-m", dest="secret_message",
|
|
help="Your secret message to hide (non binary).")
|
|
# Binary secret message to hide
|
|
group_secret.add_argument("-f", dest="secret_file",
|
|
help="Your secret to hide (Text or any binary file).")
|
|
|
|
# Image containing the secret
|
|
parser_hide.add_argument("-o", "--output", dest="output_image_file",
|
|
required=True, help="Output image containing the secret.")
|
|
|
|
# Shift the message to hide
|
|
parser_hide.add_argument("-s", "--shift", dest="shift", default=0,
|
|
help="Shift for the message to hide")
|
|
|
|
# Subparser: Reveal
|
|
parser_reveal = subparsers.add_parser('reveal', help='reveal help')
|
|
parser_reveal.add_argument("-i", "--input", dest="input_image_file",
|
|
required=True, help="Input image file.")
|
|
parser_reveal.add_argument("-e", "--encoding", dest="encoding",
|
|
choices=tools.ENCODINGS.keys(), default='UTF-8',
|
|
help="Specify the encoding of the message to reveal." +
|
|
" UTF-8 (default) or UTF-32LE.")
|
|
parser_reveal.add_argument("-o", dest="secret_binary",
|
|
help="Output for the binary secret (Text or any binary file).")
|
|
# Shift the message to reveal
|
|
parser_reveal.add_argument("-s", "--shift", dest="shift", default=0,
|
|
help="Shift for the reveal")
|
|
|
|
arguments = parser.parse_args()
|
|
|
|
|
|
if arguments.command == 'hide':
|
|
if arguments.secret_message != None:
|
|
secret = arguments.secret_message
|
|
elif arguments.secret_file != None:
|
|
secret = tools.binary2base64(arguments.secret_file)
|
|
|
|
img_encoded = lsb.hide(arguments.input_image_file, secret,
|
|
arguments.encoding, int(arguments.shift))
|
|
try:
|
|
img_encoded.save(arguments.output_image_file)
|
|
except Exception as e:
|
|
# If hide() returns an error (Too long message).
|
|
print(e)
|
|
|
|
elif arguments.command == 'reveal':
|
|
secret = lsb.reveal(arguments.input_image_file, arguments.encoding,
|
|
int(arguments.shift))
|
|
if arguments.secret_binary != None:
|
|
data = tools.base642binary(secret)
|
|
with open(arguments.secret_binary, "wb") as f:
|
|
f.write(data)
|
|
else:
|
|
print(secret)
|