The backdoor already exists, in cryptographic terms. All they're being asked to do is to use it, entirely under their own control, for this one phone. Tim Coo

The backdoor already exists, in cryptographic terms. All they're being asked to do is to use it, entirely under their own control, for this one phone. Tim Cook is trying to pretend that commenting out a few if statements in the key derivation code path is what creates the backdoor.