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Steg

Steg
Download:steg.zip [22K]
Downloaded:254 times
Version:1.02 (2nd Dec 2002)
32-bit:Yes
Requirements:ABCLib v4.14
RISC OS 3.1 or above
28K wimpslot
Licence:Freeware

Purpose

To give people back their basic human right of privacy!

What is it?

!Steg incorporates a simple form of steganography for RISC OS users. Steganography is the process by which data can be hidden within an image file so that no one suspects that anything hidden is being passed on.

This RISC OS version will allow you to encode any text (or data) file into a RISC OS sprite file. This sprite will be automatically generated and will look like a random backdrop tile.
I've also written a small application called Tiler which will generate random backdrop tiles, using the same format (and hence looking similar) but without any options to hide data - mainly to provide evidence that not all backdrop files contain hidden data.
Users of John Kortink's !Translatr can additionally convert/decode into GIF images suitable for uploading to web sites etc.

Those interested in privacy and fighting to keep it, may be interested in my other crypto software or in visiting Dr Nat Queen's excellent Acorn crypto pages.

Why did I write it?

Mainly in response to the UK government's contravention of the Universal Declaration of Human Rights, which states:-

"No one shall be subjected to arbitrary interference with his privacy, family, home or correspondence..."
- Article 12, Universal Declaration of Human Rights

I say, "Death to RIP!".

Example images

Three examples of hiding the !Help file:-

image 1

Hidden using 'sea green' palette, grid size of 256x256, step size of 53 and pass phrase of "this is secret".


image 2

Hidden using 'future glow' palette, grid size of 156x156, step size of 27 and no pass phrase.


image 3

116x116, Psychedelic palette & step=57


Alternatives worth examining

There are a number of similar alternatives for the RISC OS platform. These consist of:-

I am also looking into porting OutGuess 0.2 to the RISC OS platform, which looks like the best steganography tool for Windows and Linux (source available).


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Last edit: 10th Apr 2016 at 1:54pm
(440 days ago)

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