khannajai / pnmhide

Steganograhy in C: hide text in an image file

pnmhide

Steganograhy in C: hide text in an image file

Build and run

$ mkdir build && cd build
$ cmake ..
$ make

Hide the text "hello world" in the stegotext image stego.pnm

$ pnmhide -e "hello world" cover.pnm > stego.pnm

Retrieve the hidden text from the stegotext image stego.pnm

$ pnmhide -d stego.pnm

Detect if there is no hidden text in an image (do not produce garbage)

pnmhide -d cover.pnm