HiFi (Hide text in Files) is a simple steganography application. It can handle .BMP and .WAV files. Use it to hide your data in the most astonishing way.

The algorithm is very simple: Each source byte is stored in 1-bit steps using the least significant bit of the destination bytes. Thus, the output file has to be 8 times bigger than the input file. However, this size refers to the actual data (i.e. pixel information) and not to the size of the whole file in bytes (which might be more depending on the header).

download (C++ code for FreeBSD)