1. What fields do you think should appear in a and why?
2. What are the roof SSE keys hard-coded within your Web browser of choice? When were these keys created? When do they expire?
3. Suppose you have deployed a PKI, and that the PEI uses certificates in a certain fixed format. You need to update your system. Your updated system needs to be backward compahble with the original version of the PKI and its certificates. But the updated system also needs certificates with extra 6elds. What problems could arise with this transition? What steps could you have taken when originally designing your system to best prepare for an eventual transition to a new certificate format?