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Questions tagged [steganography]

Steganography is the study of hidden information in pictures, text, audio or video. It covers both methods of concealing information and methods of detecting hidden information.

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How can you hide information inside a jpg or gif photo?

How can I write some information inside a photo file like jpg or gif without destroying the image? and of course without showing it on the photo since the whole idea is to send information in the file of photo undetected by anyone (to provide…
M. A. Kishawy
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Will random data appended to a JPG make it unusable?

So, to simplify my life I want to be able to append from 1 to 7 additional characters on the end of some jpg images my program is processing*. These are dummy padding (fillers, etc - probably all 0x00) just to make the file size a multiple of 8…
Adam Davis
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How does hiding files in jpeg file works

I was reading an article explaining How to Hide Files in JPEG Pictures. I am wondering how it's possible for a file to contain both jpeg data and a rar file without any visible distortion either to the image or to the compressed file. My guess is…
yasar
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Use binwalk to extract all files

I have a file music.mp3. After using binwalk, I get the result: pexea12@DESMICE:~/Downloads$ binwalk music.mp3 DECIMAL HEXADECIMAL DESCRIPTION -------------------------------------------------------------------------------- 152318 …
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Good library for Digital watermarking

Can somebody help me, to find a library, or a detailed description of algorithm, that could embed a Digital watermark(invisible watermark, just a kind of steganography) to a jpeg/png file. But the quality of algorithm, should be great. It should be…
briskly
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Simple/Basic steganography algorithms and methods

What are the basic and simpliest steganography algorithms and methods? I mean the steganography applied to images. How does a simple program that hides data to images work? What are the main techniques used? How does the program recognize the…
Tom Pažourek
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Compose synthetic English phrase that would contain 160 bits of recoverable information

I have 160 bits of random data. Just for fun, I want to generate pseudo-English phrase to "store" this information in. I want to be able to recover this information from the phrase. Note: This is not a security question, I don't care if someone…
Alexander Gladysh
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Embedding binary data in web page?

I have a data structure with 6000 elements and for each element I need to store 7 bits of info. If I naively store it as an array of 6000 elements filled with numbers, it takes up around 22 KB. I am trying to reduce the size of the page - what is…
pathikrit
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Generate a pseudo-poem that would contain 160 bits of recoverable information

I have 160 bits of random data. Just for fun, I want to generate an English pseudo-poem to "store" this information in. I want to be able to recover this information from the poem. ("Poem" here is a vague term for any kind of poetry.) Note: This is…
Alexander Gladysh
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Image Steganography

I'm working on Steganography application. I need to hide a message inside an image file and secure it with a password, with not much difference in the file size. I am using Least Significant Bit algorithm and could do it successfully with BMP files…
MNIK
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Update a PDF to include an encrypted, hidden, unique identifier?

Background The idea is this: Person provides contact information for online book purchase Book, as a PDF, is marked with a unique hash Person downloads book PDF passwords are easy to circumvent, or share The ideal process would be something…
Dave Jarvis
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C++ libraries to manipulate images

Do you know any open source/free software C++ libraries to manipulate images in these formats: .jpg .gif .png .bmp ? The more formats it supports, the better. I am implementing a free program in C++ which hides a text file into one or more images,…
lurks
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Embed analytics code within image to be triggered when image is displayed

Is it possible to pack analytics code within an image and have that code fire when the image is loaded on a webpage? The image would be inserted onto a page through a file upload form field such as if I were to add an image to this question where I…
Dale Woods
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Is there a Java library for steganography?

By library I mean a use-ready .jar distribution. Image steganography would suffice. Working with JPEG, PNG and BMP would be enough too. Google yields no usable results - mostly explanations and guides, but no libraries.
kostja
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Select and Download random image from Google

Is there any example how I can search and download a random image from google? Using a random search string? I want to use this image as steganography image and I want it to be a random one. I am using C# with Visual Studio 2012.
user3320669
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