Aes-256 Cryptography read and write Qr code

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#1

Hi everyone,
I am trying to create a QR code with some simple text in it since the text has some personal info in it I should encrypt it.
Can anyone explain to me how to actually use the Cryptography blocks?
I can create and read the QR code correctly with simple text in it. But if I encrypt text, use it to generate a QR code. I cant then decode the text, all it returns is an empty string.

Enrypting Part
image

Decrypting Part
image

Thank you very much in advance.

#2

Hi everyone, there seems to be to be a bug with the AES-256 decoding. Tried the same blocks with the AES-128 encode/decode and everything worked flawlessly.

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#4
#5

That is a known problem. Use AES-128,

#6