David Conrad <david.conrad@nominum.com> writes: > Why do you think the roots and TLDs would get millions of TCP queries for > their certs? Why would anyone want to get the certs of the roots or tlds? Just to play devil's advocate, if a resolver was going to track a signature chain all the way back up, it's going to have to request the KEY/SIG records for all the parent domains all the way back to the root. In other words, resolvers all over the world are going to make requests to verify the KEY of, e.g. .COM. So, yes, there may be millions of requests to the root servers for KEY/SIG records in order to verify the leaf KEY/SIG record chains. Hopefully caching will help, but the traffic for "COM. IN SIG" is going to be a fairly popular DNSSec request, IMHO. -derek -- Derek Atkins Computer and Internet Security Consultant derek@ihtfp.com www.ihtfp.com