ILT-U-3972
IEC 62351-5 Security Assessment. Proficiency Testing Program
| DETERMINATION | METHOD |
| Secure association establishment | Test System initiates valid and invalid association sequences and evaluates IUT response |
| Message authentication (MAC/Integrity) | Send valid and tampered messages to verify acceptance/rejection behavior |
| Replay protection | Replay previously transmitted messages and observe IUT detection and handling |
| Sequence number handling | Inject out-of-order and duplicate sequence numbers and verify correct processing |
| Secure data exchange | Exchange protected messages (valid and altered) and verify integrity and decryption behavior |
| Key management handling | Trigger key usage scenarios (valid/invalid) and observe acceptance or rejection |
| Unauthorized message/command handling | Inject unauthorized or malformed messages and verify rejection and response |
| Protocol state handling | Send messages not allowed in the current state and verify correct state machine behavior |
