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September
25, 2012
Summary
1.The OBE requirements are technically
feasible, but automotive hardware for the security components is not yet available. Suppliers
estimate that the cost for the security portion is less than 20% of the total
cost for the OBE.
2.With secure hardware, the team believes that
connectivity is not required for the first three years.
After that, more frequent connectivity is likely to be required but is increasingly difficult to
estimate, since it depends upon the number of attackers and the magnitude of the
attacks.
3.Mitigations
for SCMS technical risks are well-understood from similar implementations. SCMS costs, funding and organization are being examined in a follow-up study.