Steganography (/ˌstɛɡəˈnɒɡrəfi/ STEG-ə-NOG-rə-fee) is the practice of concealing a file, message, image, or video within another file, message, image, or video. The word steganography combines the Greek words steganos (στεγανός), meaning "covered, concealed, or protected", and graphein (γράφειν) meaning "writing". wikipedia

The code

There's a lot of PHP code to encode and decode files. Google it ➠ php image steganography

This article uses very simple code I found here ➠ Image Steganography

This page uses a ➠ simple text file and an image to combine the two into a new image.

It then decodes that image to extract the hidden text.

Encode an image

Decode an image

Havo en VWO lesstof (Dutch)

Het vak ➠ informatica voor Havo en VWO heeft een onderdeel over ➠ Cryptologie.

Daarin zit de module over ➠ Steganografie.

Feb 17 2021 06:30:54