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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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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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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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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Is it possible to put malware in an audio file with steganography?
I have recently read malware being hidden in a "usable" picture file with stenography such as this forum,
https://www.bleepingcomputer.com/forums/t/574487/is-it-possible-for-a-virus-to-be-embedded-in-...
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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
Researchers ...
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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
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Other techniques such as ...
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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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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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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. ...
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What tools are needed to view or detect covert messages in a 60 fps video?
The eye can't detect changes in a frame greater than 60 FPS. Similar to this scene in Fight Club, a QR code equivalent is used in pairing the Apple Watch with the iPhone
Without knowing that the ...
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How can I verifiably demonstrate that steganography or hidden partitions do not exist?
I want to verifiably demonstrate that there are no hidden partitions, or hidden messages in a given message.
In this scenario, assume the subject is being monitored (consensually) and agrees to align ...
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How to steganograph ownership information into members uploaded images?
Considering a social website where members upload images which at times can be very similar - is there a way that images can be 'branded' steganographically with (salted+encrypted) text that ...
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Is there such a thing as public key steganography
One of the drawbacks of traditional steganography is that both parties need to exchange a secret key. Encryption had this problem too but circumvented this with public key cryptography.
Are there any ...
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How to look for steganography in a picture [closed]
I need to scan this picture for steganography as the meta-data suggest there is some concealment. I'm new to this process and don't know which free tool is the most comprehensive.
EDIT:
1. as I ...
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How can I detect unencrypted self-executing code in JPEG images?
Assuming that I have an infected image containing a self-executing malicious code that targets my image viewer and executes when I open the file. Supposing also that my computer is completely clean ...
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Malicious self-executing code can only exist in EXIF data in JPEG images?
Let's say we got an infected JPEG image that just by viewing it can automatically execute the malicious code stored inside it. It can do this either by taking advantage of the image viewer's security ...
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Image steganography and tracking
We are running an online-press media-library. On this site many brands are uploading images and track press users download and views per image.
But some brand now want to add unique code in image so ...
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Does this image contain secret data?
I am analysing big, cloud-based application. During analysis I found that one of the biggest files (>3 MB) used in this app is a very small (16x16) icon.png file.
Further analysis revealed that the ...
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Malware injected into image.ArticleContentSniffing
I came across below article.
https://code.google.com/p/doctype-mirror/wiki/ArticleContentSniffing
on of the things that brought my attention is
To be on the very safe side, it is best to ...
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How to grade / judge / evaluate a steganography approach?
When it comes to evaluating a text steganographic approach, I think we have to consider these things:
How unlikely it is for someone to guess that there is a hidden message in the message being sent?
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How is it possible to embed executable code in an image
I was reading up on FireEye and came across this NYTimes article detailing a Skype chat where an image was sent laden with malware:
Quote:
To gain access to information on the devices..., hackers ...
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How can steganography be useful in a social networking and sharing website like Facebook or Reddit? [closed]
The point of steganography is to hide useful messages in other messages so that no one suspects the message to contain secrets and tries to crack the message.
The catch is that the recipient should ...
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Steganography - retreive secret text by comparing original and text containing picture
I have two pictures: st_original.png and st_secret_key_container.png .
The second picture is the same as the first but contains a secret which is the MD5 checksum of some key I'll need to decrypt a ...
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Printer Steganography/Watermarking
I am referring to the yellow dots which are printed automatically by laser printers. They encode information such as the time the document is printed as well as the serial number. There appears to be ...
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Distinguishing SSH and HTTPS traffic
Alice is an employee of Chris, and Chris does heavy traffic monitoring via its company proxy.
Alice wishes to use a Bob's web service while preserving privacy and confidentiality. She has full ...
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Would 'spam' mail really avoid eavesdropping?
spammimic.com offers a service that 'encrypts' your mail as 'spam', the rationale being that all mail services automatically filter out spam, and so if you're wanting to communicate with someone ...
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Masking traffic in another protocol
I remember reading a couple of years ago (I believe it was during the Egyptian Revolution) that hackers managed to bypass government filters by making their traffic appear as another protocol. If ...
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Is there an example of a web server that does steganographic watermarking?
You could imagine a web app that serves subtly different versions of a page to each user. For example, it might encode the identity of the user in the images it serves. This would be a per-user ...
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What cryptosystem makes the encrypted text look like random noise?
Suppose one wants to setup a cryptographic protocol in which 2 parties communicate using an encryption scheme that produces encrypted messages indistinguishable from random data (the desired property) ...
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Embedding hidden data inside files [closed]
I need to embed a unique ID hash string in many types of files, and then verify the hash string inside the files later on remotely.
Is there a best practice for doing this?
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JPEG file SOS marker before SOF
I'm looking over some JPEG files with an assumption that a steganography has been used for trial obfuscation due to the installation of JPHS.
I've come across a file where the start of scan marker ...
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Unusual image may contain hidden data
I have received an image from a friend.
This is the image.
is there any way to detect any anomalies in this image.
Thanks
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F4 Algorithm for Steganography
Jsteg algorithm is vulnerable to statistical attacks because it influences the DCT histogram of an image perceptibly since it equalizes the number of paris of coefficients. F3 algorithm, instead of ...
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Efficiency of Steganography with Linear Codes
I have read some papers about steganography using perfect linear codes. The aim is sending more hidden message bits with changing less cover message bits. For example using the parity check matrix of [...
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