Put the data into a QByteArray and use QByteArray::toHexRepresentation() to convert it to a string.

Is that function new in 4.8? I don’ t see it in the 4.7 docs. There is a toHex though, and that one can in turn be fed to QString::fromAscii to yield a valid string.

toHex() is what I meant. It’s perfectly useful as hex is only ascii characters anyway.

I’m using this

But when I want I use this string in my application, when I use my secret key to decrypte this string, the decryption failed.

I do this to construct the securrArray whitch I passe to my methode for decryption:

Round-trip (as I would expect it):

Moved to the General forum, as it’s not a tools issue.

It work thank you