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https://github.com/cleasbycode/jdvrif

Steganography CLI / Web tool for concealing files within JPG images.
https://github.com/cleasbycode/jdvrif

cli-tools conceal conceal-data data-hiding encryption hacking-tool hidden-files hidden-message hide-data hide-files-in-image icc-profile infosec jpg mastodon privacy privacy-tools reddit steganography tumblr x-platform

Last synced: 6 days ago
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Steganography CLI / Web tool for concealing files within JPG images.

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README 

        
# jdvrif



Use CLI tools ***jdvin*** & ***jdvout*** with a JPG image, to hide/extract any file type, up to ***2GB** (cover image + data file).  



*Compatible hosting sites, ***listed below***, have their own ***much smaller*** image size limits:

* ***Flickr*** (**200MB**), ***ImgPile*** (**100MB**), ***ImgBB*** (**32MB**), ***PostImage*** (**32MB**), ***Reddit*** (**20MB** / ***-r option***),

* Limit measured by data file size: ***Mastodon*** (**~6MB**), ***Tumblr*** (**~64KB**), ***Twitter*** (**~10KB**).

  

*There are many other image hosting sites on the web that may also be compatible.*  



***jdvrif*** partly derives from the ***[technique demonstrated](https://www.vice.com/en/article/bj4wxm/tiny-picture-twitter-complete-works-of-shakespeare-steganography)*** by security researcher ***[David Buchanan](https://www.da.vidbuchanan.co.uk/).*** 



![Demo Image](https://github.com/CleasbyCode/jdvrif/blob/main/demo_image/jrif_79866.jpg)  

***Image credit:*** [***@rdc768***](https://x.com/rdc768) / ***PIN: 3611019770***



Your embedded data file is ***compressed*** (depending on file size & type) and ***encrypted*** with ***PIN*** protection.  

The file, if required, is split into multiple [***64KB APP2 Segments (ICC Color Profile)***](https://youtu.be/1213w-k9X9M) within the ***JPG*** cover image.  



(*You can try the [***jdvrif Web App, here,***](https://cleasbycode.co.uk/jdvrif/index/) if you don't want to download and compile the CLI source code.*)



## Usage (Linux - jdvin / jdvout)



```console



user1@linuxbox:~/Downloads/jdvrif-main/src/jdvin$ g++ main.cpp -O2 -lz -s -o jdvin

user1@linuxbox:~/Downloads/jdvrif-main/src/jdvin$ sudo cp jdvin /usr/bin



user1@linuxbox:~/Desktop$ jdvin 



Usage: jdvin [-r]    

       jdvin --info



user1@linuxbox:~/Desktop$ jdvin Cover_Image.jpg Hidden_File.zip

  

Saved "file-embedded" JPG image: jrif_12462.jpg (143029 bytes).



Recovery PIN: [***2166776980***]



Important: Please remember to keep your PIN safe, so that you can extract the hidden file.



Complete!



user1@linuxbox:~/Downloads/jdvrif-main/src/jdvout$ g++ main.cpp -O2 -lz -s -o jdvout

user1@linuxbox:~/Downloads/jdvrif-main/src/jdvout$ sudo cp jdvout /usr/bin



user1@linuxbox:~/Desktop$ jdvout



Usage: jdvout 

       jdvout --info

        

user1@linuxbox:~/Desktop$ jdvout jrif_12462.jpg



PIN: **********



Extracted hidden file: Hidden_File.zip (6165 bytes).



Complete! Please check your file.



```

To correctly download images from ***X/Twitter*** or ***Reddit***, click the image in the post to ***fully expand it***, before saving.  



https://github.com/user-attachments/assets/de958ecb-3281-43b7-a290-f3a831e7bced



To create "*file-embedded*" ***JPG*** images compatible for posting on ***Reddit***, use the ***-r*** option with ***jdvin***.  

From the ***Reddit*** site, click "*Create Post*" then select "*Images & Video*" tab, to post your ***JPG*** image.



To correctly download an image from ***Flickr***, click the download arrow near the bottom right-hand corner of the page and select ***Original*** for the size of image to download.



With ***X/Twitter*** & ***Tumblr***, the small size limits (**~10KB** / **~64KB**) are measured by the ***data file size*** and not the combined image size.

As the data file is compressed when embedded, you should be able to hide files larger than **10KB** or **64KB**.

For example, a **50KB** workflow.json file compressed down to **6KB**, making it compatible with sharing on ***X/Twitter.***



Also with ***Mastodon***, the size limit is measured by the ***data file size*** and not the combined image size.  

For example, if your cover image is **1MB** you can still embed a data file up to the **~6MB** size limit.



https://github.com/user-attachments/assets/f51b2c89-23cb-423b-8d35-aa2300003f2e



## Third-Party Libraries



This project makes use of the following third-party library:



- **zlib**: General-purpose compression library

  - License: zlib/libpng license (see [***LICENSE***](https://github.com/madler/zlib/blob/develop/LICENSE) file)

  - Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler



##