AES Encryption Java -> PHP -> Java

Question

In my Android app I am communicating with a web service the data sent and responded are encrypted with AES encryption.

So what I do is the following. I\'m sending a base

Answer 1

This might not be the answer you're looking for - but is there a specific reason you're manually encrypting this data instead of using SSL/HTTPS?

In most cases HTTPS will be easier to implement and more secure than manually implementing a symmetric cipher.