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Questions tagged [steganography]

Steganography is the art of hiding data within other data. Ann sends a message to Bob. With encryption Eve could see the message but not read it. With steganography Eve would not see the message.

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Are there any tools to detect JPEG steganography? [duplicate]

I am looking for tools which can detect JPEG steganography for Windows or Linux. All the projects I found are either so old that they are missing dependencies and there are no precompiled binaries. ...
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1answer
261 views

Does steganography ensure confidentiality?

Can we say that steganography ensures confidentiality? I think it does not ensure because it is based on the security through obscurity and then it does not respect Kerckhoffs's principles, but the ...
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1answer
97 views

Steganography in MP3s

Is there a way to hide a message in an audio file and hear it by playing it in reverse? Like if you play the audio file forward, it will skip my secret message and just play the next frame, but is ...
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185 views

Steganography - outguess vs steghide

Looking for some steganography guidance This maybe a noob question, but what is the difference between outguess and steghide? Are all steganography tools alike? Can I make a secret text file image in ...
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1answer
113 views

Is there a tool allowing me to store some encrypted data in an image file? [closed]

I've seen - http://stegosploit.info/ - it's adding certain data. I'm not that sophisticated, I just want to have in an image file: file header encrypted data the image does not have to be real (...
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1answer
83 views

Audio steganography and DRM

I recently made a post about an audio steganography program and had another concern I thought I might ask. I understand that most music has DRM in them. If I hide secret files in audio files with DRM ...
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1answer
270 views

How does the Deepsound steganography software work, and what are pros and cons of it?

I always been fascinated by steganography. I understand that its purpose alone is to provide security by obscurity. However, combining steganography with encryption can actually make it desirable ...
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1answer
247 views

Encrypted data embedded in JPG and Other file types

This is some data found near the end of a JPG file: 18{8uck3y3$} ! 18{b4063c521f76545d8c94e999dd63f445d8c01cfc} # 18{U2FsdGVkX19RJjdBbDB51ok1hkFXaB91NpZNoQjbVXYlMeMTaWRTdg==}? Other files on the ...
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1answer
75 views

LSB replacement and its effect on grayscale histogram

I used this program to embed some text data in grayscale image, then I compared original and stego histograms in Matlab using imhist function. You can see both on them below: Can somebody explain to ...
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How well can we hide an executable (apk/ipa) in an image [duplicate]

Guys the basic idea behind this question is to gather your thoughts on the below scenario: I was listening to a news program and one of the cyber security researchers, actually a very senior guy, was ...
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1answer
257 views

Do digital camera perform steganography / watermarking?

It is well documented that one should consider that all modern printers perform steganography / watermarking in the back of their users https://en.m.wikipedia.org/wiki/Printer_steganography Is such ...
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3answers
201 views

Is this scheme considered to be text/linguistic steganography?

Let say I have the following message: Lets meet in front of the hall at morning. From that I construct this message by applying antonym substitution: Lets meet behind the hall at evening. So "...
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1answer
72 views

Which approach provides more authenticity of image ownership: cropping, or reduced resolution?

Even if this particular approach likely provides medium to low assurance, which approach is more trustworthy: Suppose I take a set of photos that I own, and crop all of them after I magnified by 25%....
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2k views

Detecting steganography in JPG, PNG, and BMP

I have a little problem about my research on steganography. For short, I used StegSpy 2.1 to run a test for my stego images. I used 9 JPG images, 9 BMP images, and 9 PNG images. From all of them, ...
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1answer
228 views

Has anyone actually been hacked by video subtitles?

This morning's news brought this story: Hackers are hiding computer viruses in film subtitles, security experts warn Where they warn that subtitles in videos played on computers could be used to ...
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2answers
355 views

Is it possible to revert a steganographic process to reconstruct the original image?

Using, say, outguess, it is possible to hide a secret message inside a JPEG image (LSB method). Is it possible to undo the steganographic process given the modified image to reconstruct the original ...
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1answer
91 views

Is this spin on RSA algorithm possible?

My main purpose of this question is that i do not want the receiver to know how to decrpyt the data which I included in the image using steganography. I wanted to use asymmetric type algorithm and not ...
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1answer
154 views

Can I use DCT and LSB method for multiple watermarking?

I have an idea of applying DCT on an image and then embed text into the LSB of the coefficient of DCT and transmit the image to B (the receiver). Now, using the same procedure, can B transmit another ...
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123 views

What if I use lsb method for steganography in an image then change the file name?

What if I use LSB method for steganography in an image then change the file name? For example, the filename is flower.jpg and then in that image I embed a text file using LSB technique. Now the data ...
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1answer
720 views

Defeating identifying information that printers hide in printed documents

It's pretty widely known (well, I think it's widely known) that printer manufacturers, in cooperation with certain governments, embed various bits of information (serial numbers, dates, etc.) in ...
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2answers
803 views

Hidden digital watermark in a website which can survive .jpg screenshots?

I'm trying to embed a secret watermark in a website so that I can link any screenshots to the user who created them. The page looks something like this: It has a custom background (user can change it ...
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1answer
313 views

How to Combine RSA and AES for Steganography Project [closed]

I wanted to have some knowledge about cryptography and steganography so I decided to write a steganography application with using LSB technique and for message encryption I wanted to combine RSA and ...
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0answers
594 views

How to extract watermark from an image [closed]

I have a task to extract watermark itself from a highly complex image. Below there is an example. We have, say this image: Then we have some watermark like this one which is either transparent or ...
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3answers
939 views

How to implement reset password for a password manager

How could I best implement a reset password functionality for a password manager? I'm currently saving a hashed + salted master password, which is hashed with PBKDF2, and encrypting the passwords with ...
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3answers
133 views

What all file types can we hide an archive file inside?

This tutorial explains how you can "hide" an archive file like .zip inside an image file by using the command: copy /b image.jpg + hide.zip output.jpg Doing so allows you to right click output.jpg ...
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1answer
253 views

Is this an uncommon PNG ending or image steganography? [closed]

I'm reading about image steganography at the moment. I got a test file to experiment with. I noticed a strange code block at the end of the PNG file when I opened it with vim: xref 0 14 0000000000 ...
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1answer
3k views

Steganography - JPEGsnoop

I am trying to overcome a CTF steganography challenge. I tried different methods to unhide the hidden data in the file without luck. I used JPEGsnoop on the image and I got this output: *** Decoding ...
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Video Steganography Dataset [closed]

Does anybody knows a video data set worth for stenography tests? I searched many many times but I couldn't find sth good. Thanks
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7answers
10k views

Is there an encryption algorithm that allows for a single payload to have two different outputs based on the password?

Suppose I have some confidential information that is encrypted and I'm forced/compelled to disclose that password. My goal is to make that decrypted payload seem meaningful / and the password valid. ...
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4answers
437 views

Is it possible to use steganography on an analog audio channel?

Is it possible to use steganography using an analog audio channel? I know this can be done using images. My idea is to encode an audio message in way that if listened by an ordinary device (e.g., ...
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2answers
100 views

Can a picturefile with stegano be malware when saved somewhere?

I was reading an article about malware active in ad-banners, limited to systems with IE-browsers with some settings. Millions exposed to malvertising that hid attack code in banner pixels ...
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1answer
5k views

What to do with output files from binwalk? [closed]

I am testing my steganography skills on www.root-me.org. I downloaded a challenge. Here is the challenge image file. I used binwalk and it showed me the following: root@kst-Inspiron-5458:/home/kst/...
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2answers
269 views

Openstego LSB Plugin

I ran the openstego command line below and got the error "No plugin found with name: lsb". I googled for this error and it said "abstract class should be added." I am not good at java but I want to ...
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9answers
4k views

Can morse code be called steganography? [closed]

Steganography means "hidden writing", where we send messages in hidden ways. Does this mean that something only experts can understand is called steganography?
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1answer
97 views

How Audio steganography is called secure? [duplicate]

Everyone can extract the information from audio file then how its called secure. Means if we hide the text message into an audio file its the possibility that the third person can extract then how its ...
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3answers
765 views

Looking for some steganography guidance

I am currently trying to figure out a steganography challenge. I was given 3 images, a secret.txt file and a "binary" file. There are no instructions as this was part of another challenge. I am ...
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2answers
4k views

Uncover data in file slack

Today in class we learned about how information can be uncovered in a file slack. I understand this theoretically, given the physical and logical file size I can come up with the slack space of a file....
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2answers
758 views

What is network steganography?

I am new very new to networking concepts I do not have any idea about network steganography. Can anyone please explain what it is. what is its advantages and disadvantages?
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226 views

Risks from network steganography

I happened to learn that there is an actively researched IT-security field named network steganography. Could experts give a short overview of the current state of affairs, especially about the extent ...
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3answers
613 views

How to hide encrypted volume as playable video?

How do I hide an encrypted VeraCrypt volume as a playable video file? I know I can store the encrypted volume as whatever file type I want, but what if I want that file to act as the file type? For ...
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2answers
84 views

Very fast and efficient way to check that contents of the directory weren't modified

I need a way of determining whether contents of a folder containing some executable stuff have not been modified in any way a moment before I decide to execute the whatever is in it. Check every time ...
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1answer
2k views

How to know if there is an audio hidden message in an audio file? Can we hear it? [closed]

How many types for hiding audio in an audio file are there? And would we be able to realize or hear an hidden audio message in a song in all types of steganography?
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1answer
116 views

Protect hidden message in image from manipulations

I understand that there are techniques that allows me to hide information in an image. In particular, I am interested in what ways I can save a relatively short string in an image, say 30-40 ...
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3answers
5k views

Setup a private VPN for family in China?

I have family in China. During the past weeks their internet connection was severely limited. VPNs such as Astrill and similar weren't working anymore. Is it possible to setup my own VPN (or ...
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2answers
160 views

steganography - digital application?

Recently I participated in a CTF game which held a number of steganography challenges. This got me really interested in steganography. From what I understand steganography is most commonly used with ...
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2answers
3k views

How to determine if JPG EXIF data has been changed by “OEM” software (without third party tools)?

I have a JPG and I am analyzing it to determine it's efficacy. The image metadata clearly indicates that the image was digitized at 15:10:13, Dec 31, 2015 and I need to determine if this date ...
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2answers
337 views

Is steganography a part of “cryptography”?

In preparing for a security exam, the prep book I'm reading states: In the field of cryptography, the topic of encryption gets by far the most attention ... ... Other techniques such as ...
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113 views

PGP 'forced entry' decode (steganography?)

This was originally posted by me on stackoverflow but was deemed too generic. It does seem like an impossible thing to do, but: you know when you have your perimeter alarm system you usually get to ...
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1answer
219 views

Steganography concept - How to check my implementation? [closed]

I have written my own software to do Steganography. Basically, I am dividing the message (text) into bits and then hide them into pixels in jpg. After that I am saving the bitmap into .png (because ....
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92 views

Putting hidden DRM into PNG images to track copyright infringement [duplicate]

There was a question like this, but it was about JPG pictures. I have the same one about PNG pictures. I've recently had trouble where someone stole an artwork of mine and put it as a YouTube avatar. ...