What is
a PKI?
Security Certificate Management System
1. Issue certificate and private key
Vehicle A
------------------------
Public Key
Validity Date
--------------------
CA Signature
Vehicle A
---------------------
Public Key
Validity Date
--------------------
CA Signature
Message
----------------------
Signature
2. Sign message (using private key) and send message, signature & certificate
3. Verify certificate (using CA’s public key) and verify
message (using certificate’s public key)
Vehicle
A
SCMS