You have to create the algorithm to reverse an arbitrary AES-256 key, which is considered to be impossible, so that doesn&#x27;t really make a difference. Your comment about current computers fails to grasp the scale that we are talking about here:<p>&gt; It would take 10^38 Tianhe-2 Supercomputers running for the entirety of the existence of everything to exhaust half of the keyspace of a AES-256 key.<p>Let&#x27;s assume that Moore&#x27;s law is true for forever. In 300 years we will have a super computer capable of cracking a single AES-256 key in 37 millennium. However claiming that Moore&#x27;s law will stay the same for 300 years when many think it won&#x27;t last 30 is foolhardy.