mystic-crypt is designed as a Java library that can be used for simple and complex encryption and decryption.
The source code for the library is available under https://github.com/astrapi69/mystic-crypt
For demonstration what the library can do there is a graphical client:
The source code for the ui is available under https://github.com/astrapi69/mystic-crypt-ui
virgo-steganography
Hidding any binary flle < 64k in image
Require opencv on ubuntu, osx and android tested on Nougat (OpenCV Manager 3.0) armeabi
To embed (output file name is o.png)
./embed image-file binary-file
To extract
./extract steganography-file
Compiled and run on os x, ubuntu, windows and android
Most beautiful ratio image/binary 3MBytes/64KBytes
https://www.youtube.com/watch?v=U--p5WoZ1mU