2.1 Transport

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Messages MUST be transported over HTTPS by using port 2178.

The client and server MUST each provide a certificate to the TLS protocol for use during connection establishment. For details on how the TLS protocol uses the certificates, see [RFC2246] section 7.3. The certificates used MUST be within their validity interval when the connection is initiated.

A client or server MAY impose additional requirements on the certificate for authentication purposes.<3>