8. Assuming that everyone on the Internet used PGP, could a PGP message be sent to an arbitrary Internet address and be decoded correctly by all concerned? Discuss your answer. Yes/No? State the discussion. Solution:

Algorithm to Auxiliary methods for the lockstep protocol.in: message m; set of recipients R

One, why do protocols like HTTP, FTP, SMTP, and POP3 use TCP instead than UDP?    When comparing Routing and Forwarding, what are the key distinctions?    Three, explain HOL blocking. Which ports, input or output, are affected?

We explore whether either UDP or TCP offers any level of end-point authentication in this problem. a. Consider a server that accepts a request via UDP and responds via UDP (for example, as done by a DNS server). Where would the server give its answer if a client with IP address X spoofs it with address Y? b. Assume a server receives a SYN with IP source address Y and responds with SYNACK. The server then receives an ACK with IP source address Y and the right acknowledgmentamount. Assuming the server selects a random initial sequence number and there is no "man-in-the-middle," how can the server be confident that the recipient is really at Y (and not at any other address X that spoofs Y)?