If applying the algorithm to (1) produced (3), what produced (2)?
How can "no duplicate serial numbers" be enforced by any browser without having a store of all certificates? Is it simply a best-effort? Will the browser have a mapping from <serial number> to <certificate>, and whenever it sees a certificate, it will check this map to see if it has seen that serial number on a separate certificate?
A few questions:
If applying the algorithm to (1) produced (3), what produced (2)?
How can "no duplicate serial numbers" be enforced by any browser without having a store of all certificates? Is it simply a best-effort? Will the browser have a mapping from <serial number> to <certificate>, and whenever it sees a certificate, it will check this map to see if it has seen that serial number on a separate certificate?