[TheBarret]

Well here it is my latest work the QCrypter.
It is open source you may tinker, you may use, as long you will credit me for my work.

Screenshots:





Features:
- Custom colors for pixel identification
- Aes encryption

The library works as follows:

Declare the engine

Code

qc = New QCrypt.Engine

Assign the key and generate the image with the message as parameter

Code

qc.Key = MyKey.Text
qc.GenerateImage(Msg)

To retrieve the image:

Code

Picturebox1.BackgroundImage = qc.QImage

To resolve an image (and using the correct key):

Code

qc.Key = MyKey.Text
Textbox1.Text = qc.Resolve(CType(Picturebox1.BackgroundImage, Bitmap))

Qeustions and feedback welcome 🎉

- Barret

Source download:Download

[Meerkat.]

Why not more than 2 colors? It would decrease the image size a lot. This is not really a crypter either.

[TheBarret]

Why not more than 2 colors? It would decrease the image size a lot. This is not really a crypter either.

I agree but this what i wanted, and for that encrypter part, the name is borrowed from the well known Qr coding derrived to Qcrypter since it does use encryption to the embedded message.

Any more critism?

[coolerfarmer]

Seems to be nice! I'll test it out when I get home in a free weeks!

[hgdfhsdgdfgdfh]

You really shouldn't be using the ECB cipher mode. Read: https://stackoverflow.com/questions/9039...ipher-mode

If the data is very small (one block) and you're using both a salt and an IV, is it OK?

> Yes

If so, where is the threshold when you stop using it?

> Two blocks. There isn't any practical reason to use ECB, the only reason it exists is because it's a simple example of how to use a block cipher.

You see the patterns on the image, leaking information about the input. Check the article: https://en.wikipedia.org/wiki/Block_ciph..._operation and scroll to the part with picture of a penguin. Check the second image from left.
A mode like CBC would be much better suited for applications like this.

Apart from that, good project idea and a nice contribution to the forum.

[TheBarret]

You really shouldn't be using the ECB cipher mode. Read: https://stackoverflow.com/questions/9039...ipher-mode

You see the patterns on the image, leaking information about the input. Check the article: https://en.wikipedia.org/wiki/Block_ciph..._operation and scroll to the part with picture of a penguin. Check the second image from left.
A mode like CBC would be much better suited for applications like this.

Apart from that, good project idea and a nice contribution to the forum.

Hmm that is intresting, thanks for bringing those links that rly did grabbed my attention.

[SIM-1456245]

So you finally did it, ha ? Great job. I like how you can change the colors.

[MalwareMop]

Looking through the source, and hope I can learn a few things from it, again lovely work!

[Ub3rHax0r12]

hmm, This is a good start and with some work. You could have a full blown project going

[iMeetYourMum]

Why only 2 colors ?
After, it's sound good, great job.

[TheBarret]

Why only 2 colors ?
After, it's sound good, great job.

Mava already said that, no need to repeat ^^

[iMeetYourMum]

Mava already said that, no need to repeat ^^

Oh sorry, i don't seen that.
bypass character.