4Size and scope of the program
§250 million vehicles at full implementation, five-minute
certificates
4Largest PKI set in the world today is
~6.5 million users
4Longest running commercial
PKI platform to date has issued 103 million certificates
4Additional security and technical requirements
§Certificate lifespans
require thousands of Hardware Security Modules (HSM) and potentially
several hundred thousand servers
4The proposed organizational structures differ largely from
current PKI organizations