Unless Jobs was way misquoted it's rather clear with the "simplest interface ever. I finally cracked it" that he was not talking about encryption etc.
and if you think that the licensing and rules for such decryption and access are easy, well you'd be wrong. They are as complex if not more than the 'bag of hurt' that is still Blu-ray. Especially the nonsense that access contracts have become. The delay of Fox movies for iTunes on the Cloud was cake to solve compared to the spider web of poop that is broadcast contracts. It's a seriously ugly mess.