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104 lines
4 KiB
Python
Executable file
104 lines
4 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) 2010-2017 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: 0.8 $"
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__date__ = "$Date: 2016/08/04 $"
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__revision__ = "$Date: 2019/06/01 $"
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__license__ = "GPLv3"
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try:
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from stegano import lsb
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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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import argparse
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parser = argparse.ArgumentParser(prog='stegano-lsb')
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subparsers = parser.add_subparsers(help='sub-command help', dest='command')
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# Subparser: Hide
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parser_hide = subparsers.add_parser('hide', help='hide help')
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# Original image
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parser_hide.add_argument("-i", "--input", dest="input_image_file",
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required=True, help="Input image file.")
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parser_hide.add_argument("-e", "--encoding", dest="encoding",
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choices=tools.ENCODINGS.keys(), default='UTF-8',
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help="Specify the encoding of the message to hide." +
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" UTF-8 (default) or UTF-32LE.")
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group_secret = parser_hide.add_mutually_exclusive_group(required=True)
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# Non binary secret message to hide
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group_secret.add_argument("-m", dest="secret_message",
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help="Your secret message to hide (non binary).")
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# Binary secret message to hide
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group_secret.add_argument("-f", dest="secret_file",
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help="Your secret to hide (Text or any binary file).")
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# Image containing the secret
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parser_hide.add_argument("-o", "--output", dest="output_image_file",
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required=True, help="Output image containing the secret.")
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# Shift the message to hide
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parser_hide.add_argument("-s", "--shift", dest="shift", default=0,
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help="Shift for the message to hide")
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# Subparser: Reveal
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parser_reveal = subparsers.add_parser('reveal', help='reveal help')
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parser_reveal.add_argument("-i", "--input", dest="input_image_file",
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required=True, help="Input image file.")
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parser_reveal.add_argument("-e", "--encoding", dest="encoding",
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choices=tools.ENCODINGS.keys(), default='UTF-8',
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help="Specify the encoding of the message to reveal." +
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" UTF-8 (default) or UTF-32LE.")
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parser_reveal.add_argument("-o", dest="secret_binary",
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help="Output for the binary secret (Text or any binary file).")
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# Shift the message to reveal
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parser_reveal.add_argument("-s", "--shift", dest="shift", default=0,
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help="Shift for the reveal")
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arguments = parser.parse_args()
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if arguments.command == 'hide':
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if arguments.secret_message != None:
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secret = arguments.secret_message
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elif arguments.secret_file != None:
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secret = tools.binary2base64(arguments.secret_file)
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img_encoded = lsb.hide(arguments.input_image_file, secret,
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arguments.encoding, int(arguments.shift))
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try:
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img_encoded.save(arguments.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 arguments.command == 'reveal':
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secret = lsb.reveal(arguments.input_image_file, arguments.encoding,
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int(arguments.shift))
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if arguments.secret_binary != None:
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data = tools.base642binary(secret)
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with open(arguments.secret_binary, "wb") as f:
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f.write(data)
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else:
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print(secret)
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