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I have been using Steghide for hiding data inside images. I recently found that the metadata of the cover file is removed during this process. Also there is no active development for this software since 2003. Although I haven't found any alternatives online / not enough feedback.

I am interested in hiding text and images inside other images. Anyone has experience using such software? Ideally it would be a mature solution which is still supported, compatible with Java or Windows + Linux command line.

This tool will be used by a java library.

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OpenStego is one that springs to mind on Linux - it also has a Windows client, and a Java executable (so will presumably work with Mac too). See here: http://openstego.sourceforge.net/index.html

It's still in active development, with the latest version having been released in April this year (2014).

Update:

It's in the reops (at least for Fedora and Ubuntu): sudo yum install OpenStego or sudo aptitude install openstego

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  • I strongly advise against this, as it uses DES and MD5 and is therefore not secure – miniBill Sep 30 '14 at 5:13
  • @miniBill are you aware of alternatives? – Giannis Sep 30 '14 at 9:03
  • No, sorry, I'd have written an answer. Anyway, you should always consider your threat model. Who are you protecting against? – miniBill Sep 30 '14 at 9:11
  • If you want encryption in that too, I'd recommend using GPG and hiding that in the image. There's a decent guide here: digitalocean.com/community/tutorials/… – Elliot Reed Sep 30 '14 at 12:23
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    @miniBill as long as its not immediately obvious something is hidden, its not a problem. Security is not important at current stage. – Giannis Oct 6 '14 at 10:28
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You can try OpenPuff - a portable application which comes with a GUI. I have also written an article on how to download and use OpenPuff in my blog which you can read here.

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  • The tool is used from a javalibrary, so commandline access or API access are required. Added that to the description. – Giannis Oct 6 '14 at 10:26

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