Problem 3 Alice and Bob are making a joint will (i.e. M represents the single will for both of them). For the final will they want to send a copy to their attorney Charlie that only Charlie can read and that shows that both Alice and Bob have approved it. Using the notation in the slides (same as that in the book). What would be the notation of a message that accomplishes this task? Problems [M",{[M]c}B]A Problem: Bob receives the above message and wants to send a message to Dave that shows Bob has seen both messages and which parts Alice and Charlie have seen, but doesn't want anyone else to read the message. What message could he send? {[[M4,{[M]c}}],[MP]]]}] Problem 3 Alice and Bob are making a joint will (i.e. M represents the single will for both of them). For the final will they want to send a copy to their attorney Charlie that only Charlie can read and that shows that both Alice and Bob have approved it. Using the notation in the slides (same as that in the book). What would be the notation of a message that accomplishes this task? Problems [M",{[M]c}B]A Problem: Bob receives the above message and wants to send a message to Dave that shows Bob has seen both messages and which parts Alice and Charlie have seen, but doesn't want anyone else to read the message. What message could he send? {[[M4,{[M]c}}],[MP]]]}]