Set of python tools, to help extract and conceal information from images
Steganography (/ˌstɛɡəˈnɒɡrəfi/ (About this soundlisten) STEG-ə-NOG-rə-fee) is the practice of concealing a message within another message or a physical object. In computing/electronic contexts, a computer file, message, image, or video is concealed within another file, message, image, or video. The word steganography comes from Greek steganographia, which combines the words steganós (στεγανός), meaning "covered or concealed", and -graphia (γραφή) meaning "writing".[1]
The first recorded use of the term was in 1499 by Johannes Trithemius in his Steganographia, a treatise on cryptography and steganography, disguised as a book on magic. Generally, the hidden messages appear to be (or to be part of) something else: images, articles, shopping lists, or some other cover text. For example, the hidden message may be in invisible ink between the visible lines of a private letter. Some implementations of steganography that lack a shared secret are forms of security through obscurity, and key-dependent steganographic schemes adhere to Kerckhoffs's principle.[2]
The advantage of steganography over cryptography alone is that the intended secret message does not attract attention to itself as an object of scrutiny. Plainly visible encrypted messages, no matter how unbreakable they are, arouse interest and may in themselves be incriminating in countries in which encryption is illegal.[3]
Whereas cryptography is the practice of protecting the contents of a message alone, steganography is concerned with concealing the fact that a secret message is being sent and its contents.
Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program, or protocol. Media files are ideal for steganographic transmission because of their large size. For example, a sender might start with an innocuous image file and adjust the color of every hundredth pixel to correspond to a letter in the alphabet. The change is so subtle that someone who is not specifically looking for it is unlikely to notice the change.
Source : https://en.wikipedia.org/wiki/Steganography
A repository containing data structures and algorithms, regardless of language.
Not Affiliated with Digital Ocean or Hacktoberfest
- Fork Repo on Web Page
git clone https://github.com/{your-username}/Stenography-Tools- Code your files in the proper directory based on the instructions above
- add all your files
git add your/directory/path/to/file/(see new directory structure above) - commit your file changes
git commit -m "Whatever you did here, e.g. created a script in py" - push your changes
git push - Create a Pull Request to master on Web Page
- Fork Repo on Web Page
- Make your changes on your forked repo
- Make Pull Request to master