CCCrypt difference between iOS5 and iOS6

Question

I have got a decryption/encryption method using CCCrypt() which worked really well on iOS5. Now I am working with the iOS6 SDK and never changed my code, but it

Answer 1

There is an apple developer forum thread discussing this issue and it has a good amount of info on the topic. It seems that the padding option is an issue for many people. Comment #11 is where the solution starts to be discussed.