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U.S. Department of
Transportation
Research and Innovative
Technology Administration
Review of Options and Analysis to Date
Analysis to Date:
•Are there business
models that would provide
cellular service for certificate management
without a subscription? Purchasing service in bulk? Who would be responsible for the purchase? Funding?
•What enhancements, if
any, would be needed
to use the existing cellular system for certificate management? Who will make the investment?
•Is reliability of the
service an issue in terms of assuring that all vehicles receive their certificate updates?
•Are current cellular
network security practices
a risk in terms of illegally accessing certificates or associated information?
Cellular Network
Advantages
Current privacy limitations are known and accepted through an opt-in
option
Cellular infrastructure in place
In theory, meets the requirement
to assure daily access to certificates
Limitations and Questions
Does not support privacy
framework as it allows tracking and recording; can identify users
Usage is subscription-based
Lacks broadcast capabilities; existing networks would require enhancements–what
are associated
costs?
Vehicles using cellular for
certificate management would also need DSRC
for safety applications.