問題文
A team writes a small front end of its own that stands ahead of the identity platform and hands 802.1X logins on to it. The front end copies every EAP-Message attribute across faithfully but builds its packets without the attribute that carries the per packet integrity check. What does the standard require of a receiver that is handed such a packet?
選択肢
- A receiver answers such a packet with a refusal that names the missing attribute so that the sender is able to correct itself and send the whole packet again
- A receiver takes the packet and leans on the shared secret alone for integrity because that secret already covers every field of the exchange
- A receiver holds the packet until the sender supplies the check in a second packet that carries the same identifier as the first one
- A packet that carries any of those attributes has to carry that integrity check as well and a receiver that is handed such a packet drops it in silence