title: ASP.Net machinekey, validationkey, and decryptionkey - key lengths
body: <p>What are the default key lengths that are generated when leaving the ValidationKey and DecryptionKey at their defaults?   For example:</p>
  
  <pre><code>&lt;machineKey decryptionKey="AutoGenerate,IsolateApps" validationKey="AutoGenerate,IsolateApps" ... /&gt;
  </code></pre>
  
  <p>I have not been able to find this documented anywhere on MSDN.
  I would like to generate a static machine key and keep it in line with the defaults.</p>