skocur/image-cipher

Steganography software for encrypting text into image that uses modified version of LSB (Least Significant Bit) algorithm.

Image-Cipher

Steganography software for encrypting text into image that uses modified version of LSB (Least Significant Bit) algorithm. Project is part of this Medium article.

Usage:

Window option

To encrypt text into image:

1. Find a photo to use for encryption.
2. Enter the name of that photo in place of "image_name".
3. Enter text to encrypt.
4. Click "Encrypt".
5. Enjoy!

To decrypt text from image:

1. Enter name of image with encrypted message.
2. Click "Decrypt".
3. Enjoy!

Command line arguments:

-EM arg or --encryption-mode arg - sets encryption mode to one of the following:

• if arg is equal to 1, then SingleColorEncryption will be used
• if arg is equal to 2, then MultiColorEncryptio will be used
• if arg is equal to 3, then LowLevelBitEncryption will be used
• if arg is equal to 4, then RSAEncryption will be used. WARNING: EXPERIMENTAL IMPLEMENTATION

-DM arg or --decryption-mode arg - sets decryption mode with arg option analogically used as above (of course it will decrypt specific algorithm)

-f fileName or --file-name fileName - sets image name (or path to it) which will store encrypted data

Example:

java -jar Image-Cipher.jar -DM 3 -f my_awesome_image_with_embedded_data.file

Before encryption

After encryption

How does it work?

Error codes:

1 - IOException

2 - Invalid arguments (for example encrypting and decrypting at the same time)

Documentation is available on: JavaDoc

Additional tools

BinaryToImageConverter - converts any binary file to image.