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Sealed - Just Solve the File Format Problem

Sealed

From Just Solve the File Format Problem
Jump to: navigation, search
File Format
Name Sealed
Ontology
Released 2023

Sealed by aleph8 (Alejandro García Peláez) is an open-source web-based (javascript) program for hiding text or a file in an image file.

It supports reading other image formats like JPG but the output is always PNG

Only a single file can be hidden

There is an optional password

The three supported methods are:

  • LSB-Seq-Replacement - can then choose RGB order
  • MSB-Seq-Replacement (NOT SECURE) - can then choose RGB order
  • LSB-Random-Replacement - can then enter optional secret key
    • this mode severely limits the amount of data that can be hidden


Sample files

Hiding the text 'fileformats.archiveteam.org' using 'LSB-Random-Replacement' and secret key 'password':

Waterlily400-sealed.png


Hiding the file waterlily200.zip using 'LSB-Seq-Replacement' and 'RGB' order:

Waterlily400-Sealed-LSB-Seq.png


Links

Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox

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