mirror of
https://github.com/cedricbonhomme/Stegano.git
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95 lines
3.5 KiB
Python
Executable file
95 lines
3.5 KiB
Python
Executable file
#!/usr/bin/env python
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#-*- coding: utf-8 -*-
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# Stéganô - Stéganô is a basic Python Steganography module.
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# Copyright (C) 2010-2016 Cédric Bonhomme - https://www.cedricbonhomme.org
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#
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# For more information : https://github.com/cedricbonhomme/Stegano
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>
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__author__ = "Cedric Bonhomme"
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__version__ = "$Revision: 0.5 $"
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__date__ = "$Date: 2016/03/18 $"
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__license__ = "GPLv3"
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try:
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from stegano import slsbset
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except:
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print("Install stegano: sudo pip install Stegano")
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from stegano import tools
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from optparse import OptionParser
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parser = OptionParser(version=__version__)
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parser.add_option('--hide', action='store_true', default=False,
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help="Hides a message in an image.")
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parser.add_option('--reveal', action='store_true', default=False,
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help="Reveals the message hided in an image.")
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# Original image
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parser.add_option("-i", "--input", dest="input_image_file",
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help="Input image file.")
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# Generator
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parser.add_option("-g", "--generator", dest="generator_function",
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help="Generator")
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# Image containing the secret
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parser.add_option("-o", "--output", dest="output_image_file",
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help="Output image containing the secret.")
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# Non binary secret message to hide
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parser.add_option("-m", "--secret-message", dest="secret_message",
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help="Your secret message to hide (non binary).")
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# Binary secret to hide (OGG, executable, etc.)
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parser.add_option("-f", "--secret-file", dest="secret_file",
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help="Your secret to hide (Text or any binary file).")
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# Output for the binary binary secret.
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parser.add_option("-b", "--binary", dest="secret_binary",
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help="Output for the binary secret (Text or any binary file).")
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parser.set_defaults(input_image_file = './pictures/Lenna.png',
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generator_function = 'fermat',
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output_image_file = './pictures/Lenna_enc.png',
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secret_message = '', secret_file = '', secret_binary = "")
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(options, args) = parser.parse_args()
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if options.hide:
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if options.secret_message != "" and options.secret_file == "":
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secret = options.secret_message
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elif options.secret_message == "" and options.secret_file != "":
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secret = tools.binary2base64(options.secret_file)
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img_encoded = slsbset.hide(options.input_image_file, secret, options.generator_function)
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try:
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img_encoded.save(options.output_image_file)
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except Exception as e:
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# If hide() returns an error (Too long message).
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print(e)
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elif options.reveal:
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try:
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secret = slsbset.reveal(options.input_image_file, options.generator_function)
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except IndexError:
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print("Impossible to detect message.")
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exit(0)
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if options.secret_binary != "":
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data = tools.base642binary(secret)
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with open(options.secret_binary, "w") as f:
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f.write(data)
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else:
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print(secret)
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