Yes; this was Cryptography Research&#x27;s main line of business for a long time. Rambus owns them now.<p><a href="http:&#x2F;&#x2F;www.rambus.com&#x2F;security&#x2F;dpa-countermeasures&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.rambus.com&#x2F;security&#x2F;dpa-countermeasures&#x2F;</a><p>The solutions for many (most?) of these problems are patented.