ET Meeting Slides

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U.S. Department of Transportation

Proposed Security Approach

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Certificate Management Entity

Using private key, signs message and sends signature, message & certificate

Verifies certificate and message (using public keys)

Each device potentially receives thousands of certificates per year

Modified Public Key Infrastructure Approach

$C:\Users\Shelley.Row\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\VW70ZOHP\MC900282388[1].wmf$ $C:\Users\valerie.briggs\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\5418BXI0\MC900434845[1].png$

Issues certificate and private key


	Reflects a proposed approach to security
	Developed by consortium of light vehicle manufacturers (Crash Avoidance Metrics Partnership, CAMP)
		Part of cooperative projects with USDOT
		Designed to meet V2V security needs
	Designed with emphasis on V2V safety and applicability to V2I/V2X or non-safety applications
	Approach was based on a Public Key Infrastructure (PKI) scheme, which is based on distributing, managing, using, and revoking digital certificates.