It's not that reverse engineering is difficult - the FBI could theoretically do that now. It's that it needs to be signed to be accepted by the phone. Edit: se

It's not that reverse engineering is difficult - the FBI could theoretically do that now. It's that it needs to be signed to be accepted by the phone. Edit: see, for example, here: https://stratechery.com/2016/apple-versus-the-fbi-understanding-iphone-encryption-the-risks-for-apple-and-encryption/ https://stratechery.com/2016/apple-versus-the-fbi-understand...