A kernel CSPRNG needs to:<p>1. Seed itself reliably.<p>2. Do nothing unless seeded.<p>3. Re-seed itself regularly, for forward secrecy.<p>4. Have good performance.<p>How difficult is #1?  It&#x27;s as simple as gathering 128 bits of entropy.  If you have 128 bits, you an expand them into an infinite sequence of random numbers, securely, forever.<p>I think this is the essence of your comment.  The topic is important, so it&#x27;s worth being clear.