He following mutual authentication protocol is proposed based on a symmetric-key cryptography algorithm. we assume that the cryptography algorithm that is used here is secure. given that the following protocol does not provide mutual authentication. give two different attack scenarios where trudy can convince bob that she is alice. briefly explain each attack scenario performed by trudy with proper diagram which on the protocol. "alice", r e(r, kab) e(r+1, kab) alice bob [hints: you need to show two attack scenarios performed by trudy with proper diagram on the protocol. additionally, provide brief explanation of attacks to justify mutual authentication protocols that were wer. refer to attack scenarios on your ans