Rogaway&#x27;s bringing it back with a vengeance though:<p><a href="http:&#x2F;&#x2F;web.cs.ucdavis.edu&#x2F;~rogaway&#x2F;aez&#x2F;aez.pdf" rel="nofollow">http:&#x2F;&#x2F;web.cs.ucdavis.edu&#x2F;~rogaway&#x2F;aez&#x2F;aez.pdf</a><p>With AEZ, the &quot;MAC&quot; is actually just a block of zeros.