This project follows the development of a software that allows to encrypt and hide data into bmp picture files. Data can be easily encrypted/decrypted with Rijndael algorithm using a 256 byte key generated with the sha256 function and injected using the InvisibleInk algorithm. You can find attached the program and the documentation that explain how the algorithm works. Info: marco.ceriani@enlargeyournerd.com Download: InvisibleInk (zip) InvisibleInk (pdf)