Yes, you are right, this is completely off topic for this forum. So I am going to move it.
I would be more careful to post in the best forum, especially since it is urgent for you. By putting it in the wrong forum will slow down the responses. As you can see here, it was about to drop off the page without any responses.
I am going to move it to the Java In General (Advanced) forum.
"Not happening correctly"? Well, that isn't a very explicit piece of information. But I'm going to guess, and suggest that you are converting the encrypted bytes into a String and back again. If you are, then stop doing that. If not, then let's see some code and some details about what is going wrong.
Willie Smits can speak 40 languages. This tiny ad can speak only one: