Sending and processing the message

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Reference no: EM1321779

Suppose that there is a Certificate Authority (CA) with the well-known public key. Further suppose each user is issued a certificate for his/her public key. For convenience, we use P_Ku and S_Ku in order to represent the user u’s public key and private key, respectively.

Design the diagrams in order to answer the following questions.

a) Assume Alice desires to transmit a large secret message M to Bob. Explain how Alice should send M in an authenticated way.

b) Suppose that Bob receives the message sent by Alice. Explain how Bob should process the message.

Reference no: EM1321779

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