Questions tagged [steganography]

Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message. While cryptography protects the contents of a communication, steganography aims to prevent others from learning that a communication even occurred.

12 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3
votes
0answers
133 views

Old French Cipher w/ Text Hidden In Drawing

I'm trying to find a cipher challenge I saw a few years back, it was an old drawing (I think 1800's or earlier) with clouds and stars on it and French text was hidden in the image. Does anyone happen ...
2
votes
0answers
133 views

How should we assess the quality of steganography?

I am asking this question instead of extending the discussion of another question (Perfect Steganography). I did try starting a chat room (https://chat.stackexchange.com/rooms/87636/perfect-...
1
vote
0answers
153 views

Ciphertext indistinguishability under a noisy channel w/ error correction

The objective is to broadcast information over a noisy digital channel (corruption rate of say, 10-20 %, where bits flip). Assume the broadcasting software is public and there is no possibility of ...
1
vote
0answers
33 views

What are ZK and Fusion algorithms in image steganography

in the literature I have found some algorithms mentioned as ZK and Fusion in image steganography. But I couldn't find any detailed information about these algorithms. Could someone please help to ...
1
vote
0answers
227 views

Data integrity using steganographic methods

I am looking for a lightweight and fast (almost real time) data integrity checker for a very time critical application. Is it possible to provide data integrity using a steganographic method, lets say ...
1
vote
0answers
123 views

Rating a steganographic system using Blum Blum Shub to locate hidden bits

Currently I'm building a toy steganography system based in a web browser. Besides all the obvious issues with building a system requiring extreme privacy into a browser (this is a toy!), I was curious ...
1
vote
1answer
56 views

How would I make a decoder agnostic steganographic file?

I would like to make a steganographic file that can be decoded on multi-platforms, now & 20 years from now. I don't want to do so with software that may be out of date when the message decode is ...
0
votes
0answers
41 views

Is the “grain” in this converted image indicative of Steganography?

I'm checking an image in every way I can for steganography. I've checked the file signature, compared it to it's original source and extracted the pixels, many methods but nothing's coming up. ...
0
votes
0answers
28 views

Why image size is decreasing after steganography although no compression is used?

I'm working on image steganography with LSB technique, mainly text-into-image steganography. My sample images are in bmp format, and surprisingly all bmp images of the same pixel dimensions have the ...
0
votes
0answers
76 views

Why does the image histogram with ASCII text embedded look this way?

I used histogram attack on image with embedded text ASCII(LSB-method) and found the chi square value. All observed frequencies more than expected frequencies, that is tipical for empty image, and have ...
0
votes
0answers
105 views

Can I use steganography to detect data loss that occurs due to gradual degradation in quality in sequential printing of black and white noise texture?

I want to detect original print and a reproduced print. So if I embed some information in this kind of noise texture, after reproducing the original print there might be some loss in information due ...
0
votes
1answer
96 views

How to establish if a string contains a message

If you have a string S, then the string can be composed of four things: cleartext 'random' data encrypted data compressed or otherwise non-encrypted, but modified, cleartext If you want to see if ...