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Questions tagged [steganography]

Hiding data inside another file - often an image.

19
votes
8answers
528 views

Doubled-letter steganography

Steganography hides a given message inside a given carrier, producing a package that does not look suspicious. For this challenge, you will write a program that takes an ASCII message and an ASCII ...
10
votes
1answer
436 views

Braincopterify an image

Introduction Braincopter is an esoteric Brainf*** derivative that encodes a Brainf*** program as an image. As a 2D language, it uses two additional commands; they rotate the instruction pointer (...
14
votes
3answers
763 views

Bacon's cipher: An Intro to Steganography

This little piggy went to market, this little piggy wrote some code... Ah wait, we're not talking about that bacon, we're talking about Sir Francis Bacon! Specifically, the cipher Bacon devised in ...
5
votes
0answers
457 views

Encode a steganographic encoder into a package

Introduction By steganography we mean hiding a message along an existing text or image so the result would be unsuspicious of the existence of the original message. This challenge is about hiding ...
24
votes
3answers
2k views

Hiding information in Cats

You are a secret agent trying to communicate with your fatherland. Of course the information needs to be hidden so no one eaves drops your message. What would be better suited than a cat? Everyone ...