http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=Sealed 2026-04-22T15:25:13Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=Sealed&diff=46034&oldid=prev 2023-10-28T20:42:32Z

<p>Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Encryption |subcat2=Steganography |released=2023 }} &#039;&#039;&#039;Sealed&#039;&#039;&#039; by aleph8 (Alejandro García Peláez) is an open-source web-based ...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Encryption<br /> |subcat2=Steganography<br /> |released=2023<br /> }}<br /> '''Sealed''' by aleph8 (Alejandro García Peláez) is an open-source web-based (javascript) program for hiding text or a file in an image file.<br /> <br /> It supports reading other image formats like [[JPG]] but the output is always [[PNG]]<br /> <br /> Only a single file can be hidden<br /> <br /> There is an optional password<br /> <br /> The three supported methods are:<br /> <br /> * LSB-Seq-Replacement - can then choose RGB order<br /> * MSB-Seq-Replacement (NOT SECURE) - can then choose RGB order<br /> * LSB-Random-Replacement - can then enter optional secret key<br /> ** this mode severely limits the amount of data that can be hidden<br /> <br /> <br /> <br /> == Sample files ==<br /> Hiding the text 'fileformats.archiveteam.org' using 'LSB-Random-Replacement' and secret key 'password':<br /> <br /> [[File:Waterlily400-sealed.png]]<br /> <br /> <br /> Hiding the file waterlily200.zip using 'LSB-Seq-Replacement' and 'RGB' order:<br /> <br /> [[File:Waterlily400-Sealed-LSB-Seq.png]]<br /> <br /> <br /> <br /> == Links ==<br /> * [https://alejandrogp.com/sealed/ Homepage]<br /> * [https://github.com/aleph8/Sealed GitHub]<br /> * [https://old.reddit.com/r/Steganography/comments/178ma8k/a_steganography_toolkit_sealed_web_based/ Reddit post]</div>

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