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TC_A_05_CS — TLS - server-side certificate - Invalid certificate

Source: OCPP 2.0.1 Part 6 — Test Cases (Core & Advanced Security, FINAL, 2023-06-30) — Functional block A. Security, page 9.

Identification

Field	Value
Test case name	TLS - server-side certificate - Invalid certificate
Test case Id	TC_A_05_CS
Use case Id(s)	A00
Requirement(s)	A00.FR.309,A00.FR.310,A00.FR.311,A00.FR.412,A00.FR.413,A00.FR.414
System under test	Charging Station
Functional block	A. Security

The CSMS uses a server-side certificate to identify itself to the Charging Station, when using security profile 2 or 3.

To verify whether the Charging Station is able to terminate the connection when the received server certificate is invalid.

The charging station supports security profile 2 and/or 3
The active NetworkConnectionProfile uses either security profile 2 OR 3.
This testcase can be executed multiple times, using different kinds of invalid certificates: Unknown certificate expired certificate certificate with commonName that does not equal the FQDN of the CSMS.

Configuration State:

Memory State:

Reusable State(s):

Charging Station	CSMS
1. The Charging Station initiates a TLS handshake and sends a Client Hello to the OCTT.	2. The OCTT responds with a Server Hello; With a <Configured invalid server certificate>
3. The Charging Station deems the server certificate invalid and terminates the connection.
4. The Charging Station initiates a TLS handshake and sends a Client Hello to the OCTT.	5. The OCTT responds with a Server Hello; With the <Configured server certificate>
6. The Charging Station performs the following actions: Send client certificate Client Key Exchange Certificate verify Change Cipher Spec Finished; Note(s):; - The client certificate is only sent when the Charging Station uses security profile 3.	7. The OCTT performs the following actions: Change Cipher Spec Finished
8. The Charging Station sends a HTTP upgrade request to the OCTT; Note(s):; - The HTTP request only contains a username/password combination when the Charging Station uses security profile 2.	9. The OCTT upgrades the connection to a (secured) WebSocket connection.
10. The Charging Station sends a BootNotificationRequest	11. The OCTT responds with a BootNotificationResponse; with status Accepted
12. The Charging Station notifies the CSMS about the current state of all connectors.	13. The OCTT responds accordingly.
14 The Charging Station sends a SecurityEventNotificationRequest	15 The OCTT responds with a SecurityEventNotificationResponse

Step 14:

Message: SecurityEventNotificationRequest