This shithead continuously wasted 2 lectures of CNS(Cryptography and Network Security) on debating: in a link to link encrytion if encryption and decryption takes place on every node, what if attacker attacks the node while the data is decrypted.

Though I couldn't care less about the lecture but this guy brings the same issue in every lecture

Do anyone have any idea about the link to link encryption?

I know already it encrypts the whole packet with header and on each hop the data is decrypted and the destination ip address is fetched and encrypted again, but i don't know if it's possible to perform an attack on the decrypted data.