mirror of
https://github.com/cedricbonhomme/Stegano.git
synced 2025-05-12 17:18:30 +02:00
77 lines
No EOL
2.4 KiB
Python
77 lines
No EOL
2.4 KiB
Python
#!/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) 2010-2011 Cédric Bonhomme - http://cedricbonhomme.org/
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#
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# For more information : http://bitbucket.org/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: 0.1 $"
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__date__ = "$Date: 2010/03/24 $"
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__license__ = "GPLv3"
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# Thanks to: http://www.julesberman.info/spec2img.htm
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def hide(img, img_enc, copyright="http://bitbucket.org/cedricbonhomme/stegano"):
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"""
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"""
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import shutil
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import datetime
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from zlib import compress
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from zlib import decompress
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from base64 import b64encode
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from exif.minimal_exif_writer import MinimalExifWriter
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file = open("lorem_ipsum.txt", "r")
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text = "\nImage annotation date: "
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text = text + str(datetime.date.today())
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text = text + "\nImage description:\n"
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text = compress(b64encode(text + file.read()))
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file.close()
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try:
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shutil.copy(img, img_enc)
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except Exception as e:
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print("Impossible to copy image:", e)
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return
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f = MinimalExifWriter(img_enc)
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f.removeExif()
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f.newImageDescription(text)
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f.newCopyright(copyright, addYear = 1)
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f.process()
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def reveal(img):
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"""
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"""
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from base64 import b64decode
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from zlib import decompress
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from exif.minimal_exif_reader import MinimalExifReader
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try:
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g = MinimalExifReader(img)
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except:
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print("Impossible to read description.")
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return
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print(b64decode(decompress(g.imageDescription())))
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print(("\nCopyright " + g.copyright()))
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#print g.dateTimeOriginal()s
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if __name__ == "__main__":
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hide(img='./pictures/Elisha-Cuthbert.jpg', img_enc='./pictures/Elisha-Cuthbert_enc.jpg')
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reveal(img='./pictures/Elisha-Cuthbert_enc.jpg') |